Check DNS, Urls + Redirects, Certificates and Content of your Website




I

Content problems - mixed content, missing files etc.

Checked:
18.09.2023 21:25:07


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
valid-isrgrootx2.letsencrypt.org
CNAME
origin.letsencrypt.org
yes
1
0

A
52.9.173.94
San Jose/California/United States (US) - Amazon.com, Inc.
Hostname: ec2-52-9-173-94.us-west-1.compute.amazonaws.com
yes
1
0

AAAA

yes


www.valid-isrgrootx2.letsencrypt.org

Name Error
yes
1
0
*.letsencrypt.org
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.valid-isrgrootx2.letsencrypt.org
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes



2. DNSSEC

Zone (*)DNSSEC - Informations

Zone: (root)
(root)
1 DS RR published



DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=



Status: Valid because published



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 11019, Flags 256



Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 30.09.2023, 00:00:00 +, Signature-Inception: 09.09.2023, 00:00:00 +, KeyTag 20326, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: org
org
1 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=



2 RRSIG RR to validate DS RR found



RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 01.10.2023, 05:00:00 +, Signature-Inception: 18.09.2023, 04:00:00 +, KeyTag 11019, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 11019 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 26974, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 35418, Flags 256



Public Key with Algorithm 8, KeyTag 61110, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 08.10.2023, 15:23:17 +, Signature-Inception: 17.09.2023, 14:23:17 +, KeyTag 26974, Signer-Name: org



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26974 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest "T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: letsencrypt.org
letsencrypt.org
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "p6tft5m0irqlsejks5jp7dvv7n6p6fji" between the hashed NSEC3-owner "p6tdhjnvmga2vln4qol63nq6s52ah89q" and the hashed NextOwner "p6thccaej4k2p672k4cp0lg7fa25nn1n". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner p6tdhjnvmga2vln4qol63nq6s52ah89q.org., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 08.10.2023, 15:23:17 +, Signature-Inception: 17.09.2023, 14:23:17 +, KeyTag 35418, Signer-Name: org



DS-Query in the parent zone sends valid NSEC3 RR with the Hash "gdtpongmpok61u9lvnipqor8lra9l4t0" as Owner. That's the Hash of "org" with the NextHashedOwnerName "gdtrea8kmj2rneqen4m2ogj26kfsukj7". So that domain name is the Closest Encloser of "letsencrypt.org". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner gdtpongmpok61u9lvnipqor8lra9l4t0.org., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 09.10.2023, 19:20:48 +, Signature-Inception: 18.09.2023, 18:20:48 +, KeyTag 35418, Signer-Name: org



0 DNSKEY RR found




Zone: valid-isrgrootx2.letsencrypt.org
valid-isrgrootx2.letsencrypt.org
0 DS RR in the parent zone found



0 DNSKEY RR found




Zone: www.valid-isrgrootx2.letsencrypt.org
www.valid-isrgrootx2.letsencrypt.org
0 DS RR in the parent zone found

Zone: (root)
(root)
1 DS RR published



DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=



Status: Valid because published



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 11019, Flags 256



Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 30.09.2023, 00:00:00 +, Signature-Inception: 09.09.2023, 00:00:00 +, KeyTag 20326, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: org
org
1 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=



2 RRSIG RR to validate DS RR found



RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 01.10.2023, 05:00:00 +, Signature-Inception: 18.09.2023, 04:00:00 +, KeyTag 11019, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 11019 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 26974, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 35418, Flags 256



Public Key with Algorithm 8, KeyTag 61110, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 08.10.2023, 15:23:17 +, Signature-Inception: 17.09.2023, 14:23:17 +, KeyTag 26974, Signer-Name: org



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26974 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest "T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: letsencrypt.org
letsencrypt.org
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "p6tft5m0irqlsejks5jp7dvv7n6p6fji" between the hashed NSEC3-owner "p6tdhjnvmga2vln4qol63nq6s52ah89q" and the hashed NextOwner "p6thccaej4k2p672k4cp0lg7fa25nn1n". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner p6tdhjnvmga2vln4qol63nq6s52ah89q.org., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 08.10.2023, 15:23:17 +, Signature-Inception: 17.09.2023, 14:23:17 +, KeyTag 35418, Signer-Name: org



DS-Query in the parent zone sends valid NSEC3 RR with the Hash "gdtpongmpok61u9lvnipqor8lra9l4t0" as Owner. That's the Hash of "org" with the NextHashedOwnerName "gdtrea8kmj2rneqen4m2ogj26kfsukj7". So that domain name is the Closest Encloser of "letsencrypt.org". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner gdtpongmpok61u9lvnipqor8lra9l4t0.org., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 09.10.2023, 19:20:48 +, Signature-Inception: 18.09.2023, 18:20:48 +, KeyTag 35418, Signer-Name: org



0 DNSKEY RR found




Zone: origin.letsencrypt.org
origin.letsencrypt.org
0 DS RR in the parent zone found



0 DNSKEY RR found




3. Name Servers

DomainNameserverNS-IP
www.valid-isrgrootx2.letsencrypt.org
  owen.ns.cloudflare.com

valid-isrgrootx2.letsencrypt.org
  owen.ns.cloudflare.com / 67m67
108.162.193.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
172.64.33.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
173.245.59.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


T 
2606:4700:58::adf5:3bdb
Montreal/Quebec/Canada (CA) - Cloudflare, Inc.


 
2803:f800:50::6ca2:c1db
San José/Provincia de San Jose/Costa Rica (CR) - Cloudflare, Inc.


 
2a06:98c1:50::ac40:21db
London/England/United Kingdom (GB) - Cloudflare, Inc.

letsencrypt.org
  owen.ns.cloudflare.com / 67m44
108.162.193.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
172.64.33.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
173.245.59.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
2606:4700:58::adf5:3bdb
Montreal/Quebec/Canada (CA) - Cloudflare, Inc.


 
2803:f800:50::6ca2:c1db
San José/Provincia de San Jose/Costa Rica (CR) - Cloudflare, Inc.


 
2a06:98c1:50::ac40:21db
London/England/United Kingdom (GB) - Cloudflare, Inc.


  vera.ns.cloudflare.com / 67m48
108.162.192.147
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
172.64.32.147
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
173.245.58.147
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
2606:4700:50::adf5:3a93
Montreal/Quebec/Canada (CA) - Cloudflare, Inc.


 
2803:f800:50::6ca2:c093
San José/Provincia de San Jose/Costa Rica (CR) - Cloudflare, Inc.


 
2a06:98c1:50::ac40:2093
London/England/United Kingdom (GB) - Cloudflare, Inc.

org
  a0.org.afilias-nst.info / app9.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861


  a2.org.afilias-nst.info / FRA4


  b0.org.afilias-nst.org / app5.ams2.hosts.meta.redstone.afilias-nst.info-1615580861


  b2.org.afilias-nst.org / FRA4


  c0.org.afilias-nst.info / app30.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861


  d0.org.afilias-nst.org / app32.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861


origin.letsencrypt.org
  owen.ns.cloudflare.com / 67m73
108.162.193.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
172.64.33.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
173.245.59.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
2606:4700:58::adf5:3bdb
Montreal/Quebec/Canada (CA) - Cloudflare, Inc.


 
2803:f800:50::6ca2:c1db
San José/Provincia de San Jose/Costa Rica (CR) - Cloudflare, Inc.


 
2a06:98c1:50::ac40:21db
London/England/United Kingdom (GB) - Cloudflare, Inc.

letsencrypt.org
  owen.ns.cloudflare.com / 67m52
108.162.193.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
172.64.33.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
173.245.59.219
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
2606:4700:58::adf5:3bdb
Montreal/Quebec/Canada (CA) - Cloudflare, Inc.


 
2803:f800:50::6ca2:c1db
San José/Provincia de San Jose/Costa Rica (CR) - Cloudflare, Inc.


 
2a06:98c1:50::ac40:21db
London/England/United Kingdom (GB) - Cloudflare, Inc.


  vera.ns.cloudflare.com / 67m76
108.162.192.147
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
172.64.32.147
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
173.245.58.147
Toronto/Ontario/Canada (CA) - Cloudflare, Inc.


 
2606:4700:50::adf5:3a93
Montreal/Quebec/Canada (CA) - Cloudflare, Inc.


 
2803:f800:50::6ca2:c093
San José/Provincia de San Jose/Costa Rica (CR) - Cloudflare, Inc.


 
2a06:98c1:50::ac40:2093
London/England/United Kingdom (GB) - Cloudflare, Inc.

org
  a0.org.afilias-nst.info / app29.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861


  a2.org.afilias-nst.info / FRA6


  b0.org.afilias-nst.org / app1.ams2.hosts.meta.redstone.afilias-nst.info-1615580861


  b2.org.afilias-nst.org / FRA4


  c0.org.afilias-nst.info / app1.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861


  d0.org.afilias-nst.org / app12.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861


4. SOA-Entries


Domain:org
Zone-Name:org
Primary:a0.org.afilias-nst.info
Mail:hostmaster.donuts.email
Serial:1695064435
Refresh:7200
Retry:900
Expire:1209600
TTL:3600
num Entries:6


Domain:letsencrypt.org
Zone-Name:letsencrypt.org
Primary:owen.ns.cloudflare.com
Mail:dns.cloudflare.com
Serial:2319938704
Refresh:10000
Retry:2400
Expire:604800
TTL:1800
num Entries:12


Domain:valid-isrgrootx2.letsencrypt.org
Zone-Name:letsencrypt.org
Primary:owen.ns.cloudflare.com
Mail:dns.cloudflare.com
Serial:2319938704
Refresh:10000
Retry:2400
Expire:604800
TTL:1800
num Entries:6


Domain:www.valid-isrgrootx2.letsencrypt.org
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1



Domain:org
Zone-Name:org
Primary:a0.org.afilias-nst.info
Mail:hostmaster.donuts.email
Serial:1695064435
Refresh:7200
Retry:900
Expire:1209600
TTL:3600
num Entries:6


Domain:letsencrypt.org
Zone-Name:letsencrypt.org
Primary:owen.ns.cloudflare.com
Mail:dns.cloudflare.com
Serial:2319938704
Refresh:10000
Retry:2400
Expire:604800
TTL:1800
num Entries:12


Domain:origin.letsencrypt.org
Zone-Name:letsencrypt.org
Primary:owen.ns.cloudflare.com
Mail:dns.cloudflare.com
Serial:2319938704
Refresh:10000
Retry:2400
Expire:604800
TTL:1800
num Entries:6


5. Screenshots

Startaddress: https://valid-isrgrootx2.letsencrypt.org/, address used: https://valid-isrgrootx2.letsencrypt.org/, Screenshot created 2023-09-18 21:29:35 +00:0

Mobil (412px x 732px)

204 milliseconds

Screenshot mobile - https://valid-isrgrootx2.letsencrypt.org/
Mobil + Landscape (732px x 412px)

245 milliseconds

Screenshot mobile landscape - https://valid-isrgrootx2.letsencrypt.org/
Screen (1280px x 1680px)

1415 milliseconds

Screenshot Desktop - https://valid-isrgrootx2.letsencrypt.org/

Mobile- and other Chrome-Checks

widthheight
visual Viewport396716
content Size635806

Fatal: Horizontal scrollbar detected. Content-size width is greater then visual Viewport width.

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://valid-isrgrootx2.letsencrypt.org/
52.9.173.94
301
https://valid-isrgrootx2.letsencrypt.org/
Html is minified: 109.46 %
0.346
A
Server: nginx
Date: Mon, 18 Sep 2023 19:27:16 GMT
Content-Type: text/html
Content-Length: 162
Connection: close
Location: https://valid-isrgrootx2.letsencrypt.org/

• https://valid-isrgrootx2.letsencrypt.org/
52.9.173.94 GZip used - 1580 / 4067 - 61.15 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 1/2840
200

Html is minified: 377.27 %
5.670
I
small visible content (num chars: 361)
valid-isrgrootx2.letsencrypt.org Let's Encrypt is a certificate authority. We created this page to demonstrate a valid certificate that chains to our ISRG Root X2 certificate. Get involved Let's Encrypt is a community-driven project. We would love for you to get involved. Help us build the CA Participate in the community support forums Sign up to be a sponsor
Server: nginx
Date: Mon, 18 Sep 2023 19:27:17 GMT
Content-Type: text/html
Last-Modified: Fri, 04 Aug 2023 20:58:47 GMT
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
ETag: W/"64cd6687-fe3"
Strict-Transport-Security: max-age=604800
X-XSS-Protection: 1; mode=block
Content-Encoding: gzip

• http://valid-isrgrootx2.letsencrypt.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
52.9.173.94 GZip used - 107 / 146 - 26.71 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 110.61 %
0.350
A
Not Found
Visible Content: 404 Not Found nginx
Server: nginx
Date: Mon, 18 Sep 2023 19:27:24 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: close
Content-Encoding: gzip

• https://52.9.173.94/
52.9.173.94
301
https://letsencrypt.org
Html is minified: 109.46 %
5.613
N
Certificate error: RemoteCertificateNameMismatch
Server: nginx
Date: Mon, 18 Sep 2023 19:27:26 GMT
Content-Type: text/html
Content-Length: 162
Connection: close
Location: https://letsencrypt.org
Strict-Transport-Security: max-age=15768000
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Content-Security-Policy: default-src 'self'; style-src 'unsafe-inline' 'self'; script-src 'unsafe-eval' 'unsafe-inline' 'self' data: https://www.google-analytics.com https://www.googleadservices.com https://www.googletagmanager.com https://googleads.g.doubleclick.net https://donorbox.org https://js.stripe.com/v3/ https://sdks.shopifycdn.com; img-src 'self' data: https://www.google-analytics.com https://www.paypal.com https://www.paypalobjects.com https://ak2s.abmr.net https://ak1s.abmr.net https://www.google.com https://cdn.shopify.com https://v.shopify.com; frame-src https://donorbox.org https://www.youtube.com https://www.youtube-nocookie.com https://bid.g.doubleclick.net https://js.stripe.com/v3/ https://js.stripe.com/v2/; font-src 'self';connect-src 'self' https://cyxp6wx4v9.execute-api.us-east-2.amazonaws.com/dev/create_order https://letsencrypt-merch.myshopify.com;
X-Frame-Options: DENY

• https://letsencrypt.org
GZip used - 6207 / 34903 - 82.22 %
Inline-JavaScript (∑/total): 1/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 130.57 %
1.933
I
Accept-Ranges: bytes
Age: 26057
Cache-Control: public,max-age=0,must-revalidate
Content-Encoding: gzip
Content-Length: 6207
Content-Security-Policy: default-src 'none'; font-src 'self'; style-src 'unsafe-inline' 'self'; script-src 'unsafe-eval' 'unsafe-inline' 'self' data: https://www.google-analytics.com https://www.googleadservices.com https://www.googletagmanager.com https://googleads.g.doubleclick.net https://donorbox.org https://js.stripe.com/v3/ https://sdks.shopifycdn.com https://www.paypal.com ; img-src 'self' data: blob: https://www.google-analytics.com https://www.paypal.com https://www.paypalobjects.com https://ak2s.abmr.net https://ak1s.abmr.net https://www.google.com https://cdn.shopify.com https://v.shopify.com ; frame-src https://donorbox.org https://www.youtube.com https://www.youtube-nocookie.com https://bid.g.doubleclick.net https://js.stripe.com/v3/ https://js.stripe.com/v2/ https://www.paypal.com https://outreach.abetterinternet.org ; connect-src 'self' https://d4twhgtvn0ff5.cloudfront.net/ https://letsencrypt-merch.myshopify.com https://monorail-edge.shopifysvc.com https://www.paypal.com ;
Content-Type: text/html; charset=UTF-8
Date: Mon, 18 Sep 2023 19:27:32 GMT
Etag: "c090cb81bffd2f8e88fa6706b0553304-ssl-df"
Permissions-Policy: geolocation=(), midi=(), notifications=(), push=(), sync-xhr=(), microphone=(), camera=(), magnetometer=(), gyroscope=(), speaker=(self), vibrate=(), fullscreen=(self), interest-cohort=()
Referrer-Policy: no-referrer
Server: Netlify
Strict-Transport-Security: max-age=31536000
Vary: Accept-Encoding
X-Content-Type-Options: nosniff
X-Frame-Options: DENY
X-Nf-Request-Id: 01HAMW68K8Q44XHEZESYVXBZW1
X-Xss-Protection: 1; mode=block
Connection: close

7. Comments


1. General Results, most used to calculate the result

Aname "valid-isrgrootx2.letsencrypt.org" is subdomain, public suffix is ".org", top-level-domain is ".org", top-level-domain-type is "generic", tld-manager is "Public Interest Registry (PIR)", num .org-domains preloaded: 7880 (complete: 231048)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: valid-isrgrootx2.letsencrypt.org has only one ip address.
Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: valid-isrgrootx2.letsencrypt.org has no ipv6 address.
AGood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
Ahttps://52.9.173.94/ 52.9.173.94
301
https://letsencrypt.org
Correct redirect https to https
AGood: destination is https
AGood - only one version with Http-Status 200
AGood: one preferred version: non-www is preferred
AGood: No cookie sent via http.
AGood: every https has a Strict Transport Security Header
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):1 complete Content-Type - header (3 urls)
https://valid-isrgrootx2.letsencrypt.org/ 52.9.173.94


Url with incomplete Content-Type - header - missing charset
http://valid-isrgrootx2.letsencrypt.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 52.9.173.94


Url with incomplete Content-Type - header - missing charset
Ahttp://valid-isrgrootx2.letsencrypt.org/ 52.9.173.94
301
https://valid-isrgrootx2.letsencrypt.org/
Correct redirect http - https with the same domain name
BWarning: HSTS max-age is too short - minimum 31536000 = 365 days required, 604800 seconds = 7 days found
Ihttps://valid-isrgrootx2.letsencrypt.org/ 52.9.173.94
200

Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
Nhttps://52.9.173.94/ 52.9.173.94
301
https://letsencrypt.org
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain valid-isrgrootx2.letsencrypt.org, 1 ip addresses.
BNo _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.valid-isrgrootx2.letsencrypt.org

2. Header-Checks

Avalid-isrgrootx2.letsencrypt.org 52.9.173.94
X-Xss-Protection
Ok: Header without syntax errors found: 1; mode=block
B

Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block
Fvalid-isrgrootx2.letsencrypt.org 52.9.173.94
Content-Security-Policy
Critical: Missing Header:
Fvalid-isrgrootx2.letsencrypt.org 52.9.173.94
X-Content-Type-Options
Critical: Missing Header:
Fvalid-isrgrootx2.letsencrypt.org 52.9.173.94
Referrer-Policy
Critical: Missing Header:
Fvalid-isrgrootx2.letsencrypt.org 52.9.173.94
Permissions-Policy
Critical: Missing Header:

3. DNS- and NameServer - Checks

AInfo:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
AInfo:: 7 Queries complete, 7 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
Ok (4 - 8):: An average of 3.5 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 2 different Name Servers found: owen.ns.cloudflare.com, vera.ns.cloudflare.com, 2 Name Servers included in Delegation: owen.ns.cloudflare.com, vera.ns.cloudflare.com, 2 Name Servers included in 1 Zone definitions: owen.ns.cloudflare.com, vera.ns.cloudflare.com, 1 Name Servers listed in SOA.Primary: owen.ns.cloudflare.com.
AGood: Only one SOA.Primary Name Server found.: owen.ns.cloudflare.com.
AGood: SOA.Primary Name Server included in the delegation set.: owen.ns.cloudflare.com.
AGood: Consistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Ordered list of name servers: owen.ns.cloudflare.com, vera.ns.cloudflare.com
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 2 different Name Servers found
Warning: All Name Servers have the same Top Level Domain / Public Suffix. If there is a problem with that Top Level Domain, your domain may be affected. Better: Use Name Servers with different top level domains.: 2 Name Servers, 1 Top Level Domain: com
Warning: All Name Servers have the same domain name. If there is a problem with that domain name (or with the name servers of that domain name), your domain may be affected. Better: Use Name Servers with different domain names / different top level domains.: Only one domain name used: cloudflare.com
AGood: Name servers with different Country locations found: 2 Name Servers, 3 Countries: CA, CR, GB
AInfo: Ipv4-Subnet-list: 6 Name Servers, 3 different subnets (first Byte): 108., 172., 173., 3 different subnets (first two Bytes): 108.162., 172.64., 173.245., 6 different subnets (first three Bytes): 108.162.192., 108.162.193., 172.64.32., 172.64.33., 173.245.58., 173.245.59.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 6 Name Servers with IPv6, 3 different subnets (first block): 2606:, 2803:, 2a06:, 3 different subnets (first two blocks): 2606:4700:, 2803:f800:, 2a06:98c1:, 4 different subnets (first three blocks): 2606:4700:0050:, 2606:4700:0058:, 2803:f800:0050:, 2a06:98c1:0050:, 4 different subnets (first four blocks): 2606:4700:0050:0000:, 2606:4700:0058:0000:, 2803:f800:0050:0000:, 2a06:98c1:0050:0000:
AGood: Name Server IPv6 addresses from different subnets found.
AGood: Nameserver supports TCP connections: 6 good Nameserver
XNameserver Timeout checking Echo Capitalization: owen.ns.cloudflare.com / 2606:4700:58::adf5:3bdb
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 6 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 6 good Nameserver
Nameserver doesn't pass all EDNS-Checks: owen.ns.cloudflare.com: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
AGood: All SOA have the same Serial Number
Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.

4. Content- and Performance-critical Checks

AGood: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AGood: Every https result with status 200 supports GZip.
https://valid-isrgrootx2.letsencrypt.org/ 52.9.173.94
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://letsencrypt.org
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://valid-isrgrootx2.letsencrypt.org/ 52.9.173.94
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://letsencrypt.org
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
AGood: Every https connection via port 443 supports the http/2 protocol via ALPN.
https://letsencrypt.org
200

Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 1 script elements without defer/async.
Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 3 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 3 complete.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 89 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 89 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: Some img-elements have a valid alt-attribute.: 89 img-elements found, 87 img-elements with correct alt-attributes (defined, not an empty value).
Wrong: img-elements without alt-attribute or empty alt-attribute found. The alt-attribute ("alternative") is required and should describe the img. So Screenreader and search engines are able to use these informations.: 2 img-elements without alt-attribute, 0 img-elements with empty alt-attribute found.
AGood: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
AInfo: Different Server-Headers found
ADuration: 278123 milliseconds, 278.123 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
valid-isrgrootx2.letsencrypt.org
52.9.173.94
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
supported
ok
valid-isrgrootx2.letsencrypt.org
52.9.173.94
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
supported
ok
http/2 via ALPN supported 
SNI required
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
http/2 via ALPN supported
SNI required
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain - incomplete
1CN=valid-isrgrootx2.letsencrypt.org

2CN=E1, O=Let's Encrypt, C=US


52.9.173.94
52.9.173.94
443
name does not match
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
supported
ok

52.9.173.94
52.9.173.94
443
name does not match
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
supported
ok
http/2 via ALPN supported 
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
http/2 via ALPN supported
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain - too much certificates, don't send root certificates
1CN=origin.letsencrypt.org

2CN=R3, O=Let's Encrypt, C=US

3CN=ISRG Root X1, O=Internet Security Research Group, C=US


letsencrypt.org
letsencrypt.org
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
not supported
ok

letsencrypt.org
letsencrypt.org
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
not supported
ok
http/2 via ALPN supported 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
http/2 via ALPN supported
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain - too much certificates, don't send root certificates
1CN=lencr.org

2CN=R3, O=Let's Encrypt, C=US

3CN=ISRG Root X1, O=Internet Security Research Group, C=US


9. Certificates

1.
1.
CN=valid-isrgrootx2.letsencrypt.org
09.08.2023
07.11.2023
expires in 37 days
valid-isrgrootx2.letsencrypt.org - 1 entry
1.
1.
CN=valid-isrgrootx2.letsencrypt.org
09.08.2023

07.11.2023
expires in 37 days
valid-isrgrootx2.letsencrypt.org - 1 entry

KeyalgorithmEC Public Key (256 bit, prime256v1)
Signatur:ECDSA SHA384
Serial Number:03700FA6AB0C0767E26C578708BD7064C8C2
Thumbprint:A546A9314B8B704D4FE771DDFB5193D6F0FCA064
SHA256 / Certificate:GLjCqA+jfqHXLjI9KxEm1UyqD/S995X8O5RDzwLU3Rw=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):b7be6f042979a89cf18633b626ab432926b2e5f3d6481eb0d235d9f34c033304
SHA256 hex / Subject Public Key Information (SPKI):b7be6f042979a89cf18633b626ab432926b2e5f3d6481eb0d235d9f34c033304 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://e1.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


2.
CN=valid-isrgrootx2.letsencrypt.org
09.08.2023
07.11.2023
expires in 37 days
valid-isrgrootx2.letsencrypt.org - 1 entry

2.
CN=valid-isrgrootx2.letsencrypt.org
09.08.2023

07.11.2023
expires in 37 days
valid-isrgrootx2.letsencrypt.org - 1 entry

KeyalgorithmEC Public Key (256 bit, prime256v1)
Signatur:ECDSA SHA384
Serial Number:03700FA6AB0C0767E26C578708BD7064C8C2
Thumbprint:A546A9314B8B704D4FE771DDFB5193D6F0FCA064
SHA256 / Certificate:GLjCqA+jfqHXLjI9KxEm1UyqD/S995X8O5RDzwLU3Rw=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):b7be6f042979a89cf18633b626ab432926b2e5f3d6481eb0d235d9f34c033304
SHA256 hex / Subject Public Key Information (SPKI):b7be6f042979a89cf18633b626ab432926b2e5f3d6481eb0d235d9f34c033304 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://e1.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


3.
CN=E1, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 715 days


3.
CN=E1, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 715 days


KeyalgorithmEC Public Key (384 bit, secp384r1)
Signatur:ECDSA SHA384
Serial Number:00B3BDDFF8A7845BBCE903A04135B34A45
Thumbprint:091E8EA1B256A312962AF6C140C0FBF079A407B3
SHA256 / Certificate:RklOMDeQWd8YvlISQwXmBvxZBw5bIQds4ROVS2BRfNo=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):276fe8a8c4ec7611565bf9fce6dcace9be320c1b5bea27596b2204071ed04f10
SHA256 hex / Subject Public Key Information (SPKI):276fe8a8c4ec7611565bf9fce6dcace9be320c1b5bea27596b2204071ed04f10
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)


4.
CN=E1, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 715 days


4.
CN=E1, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 715 days


KeyalgorithmEC Public Key (384 bit, secp384r1)
Signatur:ECDSA SHA384
Serial Number:00B3BDDFF8A7845BBCE903A04135B34A45
Thumbprint:091E8EA1B256A312962AF6C140C0FBF079A407B3
SHA256 / Certificate:RklOMDeQWd8YvlISQwXmBvxZBw5bIQds4ROVS2BRfNo=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):276fe8a8c4ec7611565bf9fce6dcace9be320c1b5bea27596b2204071ed04f10
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)


5.
CN=ISRG Root X2, O=Internet Security Research Group, C=US
04.09.2020
15.09.2025
expires in 715 days


5.
CN=ISRG Root X2, O=Internet Security Research Group, C=US
04.09.2020

15.09.2025
expires in 715 days


KeyalgorithmEC Public Key (384 bit, secp384r1)
Signatur:SHA256 With RSA-Encryption
Serial Number:079E492886376FD40848C23FC631E463
Thumbprint:151682F5218C0A511C28F4060A73B9CA78CE9A53
SHA256 / Certificate:iwW2jMZZ5e0PyzjyyUL7/SAOby/5+F1jxplO9eCwJwE=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:


6.
CN=ISRG Root X2, O=Internet Security Research Group, C=US
04.09.2020
17.09.2040
expires in 6196 days


6.
CN=ISRG Root X2, O=Internet Security Research Group, C=US
04.09.2020

17.09.2040
expires in 6196 days


KeyalgorithmEC Public Key (384 bit, secp384r1)
Signatur:ECDSA SHA384
Serial Number:41D29DD172EAEEA780C12C6CE92F8752
Thumbprint:BDB1B93CD5978D45C6261455F8DB95C75AD153AF
SHA256 / Certificate:aXKbjhWobvwXelevtxcd/GSt0owvyozxUH40RTzLFHA=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:



7.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 4264 days


7.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 4264 days


KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:


2.
1.
CN=origin.letsencrypt.org
04.08.2023
02.11.2023
expires in 32 days
origin.letsencrypt.org - 1 entry
2.
1.
CN=origin.letsencrypt.org
04.08.2023

02.11.2023
expires in 32 days
origin.letsencrypt.org - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0376678E505C033EBECC720D69BBD115628E
Thumbprint:E6580BEC36FD4E146E1E5643272B8666E0EBBAB3
SHA256 / Certificate:KivM0s3c5GckvfZCFBlfIjTPrWpWEPGhCRGYEwtU79U=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):e78264f7a1339ede59d6d89293905f5293d252bd47beb884f20709a3417233a0
SHA256 hex / Subject Public Key Information (SPKI):e78264f7a1339ede59d6d89293905f5293d252bd47beb884f20709a3417233a0 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://r3.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 715 days


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 715 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 4264 days


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 4264 days


KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:


3.
1.
CN=lencr.org
31.07.2023
29.10.2023
expires in 28 days
lencr.org, letsencrypt.com, letsencrypt.org, www.lencr.org, www.letsencrypt.com, www.letsencrypt.org - 6 entries
3.
1.
CN=lencr.org
31.07.2023

29.10.2023
expires in 28 days
lencr.org, letsencrypt.com, letsencrypt.org, www.lencr.org, www.letsencrypt.com, www.letsencrypt.org - 6 entries

KeyalgorithmEC Public Key (256 bit, prime256v1)
Signatur:SHA256 With RSA-Encryption
Serial Number:03B8E51C86F46B643DF337F1C3FCCD128923
Thumbprint:13D73951F15D6FC246DD537A8815F40B4242A8BA
SHA256 / Certificate:XfAru+ctLtyGX8JbnBVXOtzG2zlkqzBXs54pYQFo0V8=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):7ac11a4d6192e7f01008dbe8d097a61f2c958d6dbd257c1292b025e2da2b4c69
SHA256 hex / Subject Public Key Information (SPKI):7ac11a4d6192e7f01008dbe8d097a61f2c958d6dbd257c1292b025e2da2b4c69 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://r3.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 715 days


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 715 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 4264 days


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 4264 days


KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:



10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

Issuerlast 7 daysactivenum Certs
CN=E1, O=Let's Encrypt, C=US
0
6
7

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
5658996012
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-09 15:21:54
2023-11-07 15:21:53
valid-isrgrootx2.letsencrypt.org - 1 entries


5658997990
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-09 15:21:19
2023-11-07 15:21:18
valid-isrgrootx2.letsencrypt.org - 1 entries


5658993482
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-09 15:21:10
2023-11-07 15:21:09
valid-isrgrootx2.letsencrypt.org - 1 entries


5633825769
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-04 21:43:50
2023-11-02 21:43:49
valid-isrgrootx2.letsencrypt.org - 1 entries


5633730663
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-04 21:15:58
2023-11-02 21:15:57
valid-isrgrootx2.letsencrypt.org - 1 entries


5633679004
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-04 21:02:45
2023-11-02 21:02:44
valid-isrgrootx2.letsencrypt.org - 1 entries


5415414317
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-06-21 15:00:18
2023-09-19 15:00:17
valid-isrgrootx2.letsencrypt.org - 1 entries



2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

Issuerlast 7 daysactivenum Certs
CN=E1, O=Let's Encrypt, C=US
0
6
8

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
10130773490
precert
CN=E1, O=Let's Encrypt, C=US
2023-08-09 13:21:54
2023-11-07 14:21:53
valid-isrgrootx2.letsencrypt.org
1 entries


10237756731
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-09 13:21:19
2023-11-07 14:21:18
valid-isrgrootx2.letsencrypt.org
1 entries


10237755333
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-09 13:21:10
2023-11-07 14:21:09
valid-isrgrootx2.letsencrypt.org
1 entries


10097134352
precert
CN=E1, O=Let's Encrypt, C=US
2023-08-04 19:43:50
2023-11-02 20:43:49
valid-isrgrootx2.letsencrypt.org
1 entries


10183285926
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-04 19:15:58
2023-11-02 20:15:57
valid-isrgrootx2.letsencrypt.org
1 entries


10183164873
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-08-04 19:02:45
2023-11-02 20:02:44
valid-isrgrootx2.letsencrypt.org
1 entries


9712263083
leaf cert
CN=E1, O=Let's Encrypt, C=US
2023-06-21 13:00:18
2023-09-19 13:00:17
valid-isrgrootx2.letsencrypt.org
1 entries


9190286992
precert
CN=E1, O=Let's Encrypt, C=US
2023-04-19 13:00:14
2023-07-18 13:00:13
valid-isrgrootx2.letsencrypt.org
1 entries



11. Html-Content - Entries

Summary

Subresource Integrity (SRI)
DomainnameHtmlElementrel/property∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://valid-isrgrootx2.letsencrypt.org/
52.9.173.94
a

4

0


0
0
0


img

1

0
1
0
0
0
0


meta
other
3

0


0
0
0


style

4
102,676 Bytes
1
4
0
0
0
0

https://letsencrypt.org
a

158

0


0
0
0


iframe

1

0


0
0
0


img

88

0


0
0
0


link
alternate
1

0


0
0
0


link
stylesheet
2

0


0
1
0


link
other
1

0


0
0
0


meta
twitter
6

0


0
0
0


meta
other
6

0


0
0
0


script

1

0


0
1
0

Details

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://valid-isrgrootx2.letsencrypt.org/
52.9.173.94
a

https://community.letsencrypt.org/


1
ok








a

https://github.com/letsencrypt/boulder/


1
ok








a

https://letsencrypt.org/


1
ok








a

https://letsencrypt.org/become-a-sponsor/


1
ok








img
src
./images/LE_badge_color.svg
200

1
ok
no alt-Attributeimage/svg+xml, missing X-Content-Type-Options nosniff

No Cache-Control header
GZip: 1090/2502 Bytes






meta

utf-8


1
ok








meta
X-UA-Compatible
IE=edge


1
ok








meta
viewport
width=device-width initial-scale=1


1
ok








style

./fonts/OpenSans-Bold.woff
200

1
ok
font/woff, missing X-Content-Type-Options nosniff

No Cache-Control header
No GZip: 14188/14188 Bytes, font already compressed






style

./fonts/OpenSans-Light.woff
200

1
ok
font/woff, missing X-Content-Type-Options nosniff

No Cache-Control header
No GZip: 14056/14056 Bytes, font already compressed






style

./fonts/OpenSans-Regular.woff
404
Not Found
1
missing file
text/html, missing X-Content-Type-Options nosniff

0 Bytes






style

./images/3.jpg
200

1
ok
image/jpeg, missing X-Content-Type-Options nosniff

No Cache-Control header
No GZip - 74432 Bytes





https://letsencrypt.org

a

#


3
ok








a

#main-content


1
ok








a

/


2
ok








a

/2023/01/19/renewing-sponsors


2
ok








a

/2023/03/23/improving-resliiency-and-reliability-with-ari


2
ok








a

/2023/05/24/isrg-10th-anniversary


2
ok








a

/2023/07/10/cross-sign-expiration


2
ok








a

/2023/09/07/caa23


2
ok








a

/about/


1
ok








a

/blog/


2
ok








a

/ca/


1
ok








a

/contact/


1
ok








a

/cs/


1
ok








a

/da/


1
ok








a

/de/


1
ok








a

/docs/


1
ok








a

/docs/dst-root-ca-x3-expiration-september-2021/


1
ok








a

/docs/faq/


1
ok








a

/donate/


2
ok








a

/el/


1
ok








a

/es/


1
ok








a

/feed.xml


1
ok








a

/fi/


1
ok








a

/fr/


1
ok








a

/getinvolved/


1
ok








a

/getting-started/


1
ok








a

/he/


1
ok








a

/hu/


1
ok








a

/id/


1
ok








a

/it/


1
ok








a

/ja/


1
ok








a

/ko/


1
ok








a

/pl/


1
ok








a

/privacy/


1
ok








a

/pt-br/


1
ok








a

/repository/


1
ok








a

/ru/


1
ok








a

/si/


1
ok








a

/sponsors/


2
ok








a

/sr/


1
ok








a

/stats/


1
ok








a

/sv/


1
ok








a

/ta/


1
ok








a

/th/


1
ok








a

/uk/


1
ok








a

/vi/


1
ok








a

/zh-cn/


1
ok








a

/zh-tw/


1
ok








a

https://abetterinternet.org/annual-reports/


1
ok








a

https://abetterinternet.org/tenth-anniversary


1
ok








a

https://actonfamilygiving.org/


1
ok








a

https://automattic.com/


1
ok








a

https://aws.amazon.com/


1
ok








a

https://bitlaunch.io/


1
ok








a

https://brave.com/


1
ok








a

https://cargo.site/


1
ok








a

https://community.letsencrypt.org/


1
ok








a

https://cryptotracker.com/


1
ok








a

https://dan.com/


1
ok








a

https://dnsimple.com/letsencrypt


1
ok








a

https://domainname.shop/


1
ok








a

https://driving-tests.org/


1
ok








a

https://github.com/


1
ok








a

https://github.com/letsencrypt


1
ok








a

https://goteleport.com/


1
ok








a

https://iban.com/


1
ok








a

https://infosec.exchange/@letsencrypt


1
ok








a

https://ipinfo.io/


1
ok








a

https://keenetic.com/


1
ok








a

https://letsencrypt.status.io/


1
ok








a

https://manualsbrain.com/


1
ok








a

https://ngrok.com/


1
ok








a

https://pantheon.io/


1
ok








a

https://plat.ai/


1
ok








a

https://rackspeed.de/


1
ok








a

https://render.com/


1
ok








a

https://serverpilot.io/


1
ok








a

https://shiguredo.jp/


1
ok








a

https://smallstep.com/


1
ok








a

https://snipeitapp.com/


1
ok








a

https://tailscale.com/


1
ok








a

https://thebestvpn.com/


1
ok








a

https://twitter.com/letsencrypt


1
ok








a

https://unraid.net/


1
ok








a

https://vilros.com/


1
ok








a

https://www.3cx.com/


1
ok








a

https://www.4kdownload.com/-1uvr6/video-downloader


1
ok








a

https://www.abetterinternet.org/


1
ok








a

https://www.abetterinternet.org/about/


1
ok








a

https://www.abetterinternet.org/careers/


1
ok








a

https://www.abetterinternet.org/sponsor/


2
ok








a

https://www.abetterinternet.org/trademarks


1
ok








a

https://www.ads.com/


1
ok








a

https://www.akamai.com/


1
ok








a

https://www.cdmon.com/es/


1
ok








a

https://www.cisco.com/


1
ok








a

https://www.clever-cloud.com/


1
ok








a

https://www.cloudera.com/


1
ok








a

https://www.confluent.io/


1
ok








a

https://www.cyon.ch/


1
ok








a

https://www.discourse.org/


1
ok








a

https://www.duda.co/


1
ok








a

https://www.duocircle.com/


1
ok








a

https://www.eff.org/


1
ok








a

https://www.entri.com/


1
ok








a

https://www.fastly.com/


1
ok








a

https://www.fordfound.org/


1
ok








a

https://www.google.com/chrome/


1
ok








a

https://www.greengeeks.com/


1
ok








a

https://www.hackthebox.eu/


1
ok








a

https://www.haproxy.com/


1
ok








a

https://www.hawkhost.com/


1
ok








a

https://www.heroku.com/


1
ok








a

https://www.hostpapa.com/lets-encrypt-hosting?utm_source=letsencrypt.org&utm_medium=referral&utm_campaign=us-seo&utm_term=web-hosting&utm_content=180x108-logo


1
ok








a

https://www.hostpoint.ch/


1
ok








a

https://www.hostscore.net/


1
ok








a

https://www.hoststar.ch/


1
ok








a

https://www.ibm.com/


1
ok








a

https://www.identrust.com/


1
ok








a

https://www.infomaniak.ch/


1
ok








a

https://www.jetbrains.com/


1
ok








a

https://www.jimdo.com/


1
ok








a

https://www.livesport.eu/


1
ok








a

https://www.meta.com/


1
ok








a

https://www.mongodb.com/


1
ok








a

https://www.mozilla.org/


1
ok








a

https://www.nabucasa.com/


1
ok








a

https://www.netlify.com/


1
ok








a

https://www.nginx.com/


1
ok








a

https://www.one.com/


1
ok








a

https://www.ovh.com/


1
ok








a

https://www.planethoster.com/


1
ok








a

https://www.redacted.com/


1
ok








a

https://www.redhat.com/


1
ok








a

https://www.sakura.ad.jp/


1
ok








a

https://www.sap.com/


1
ok








a

https://www.shopify.com/


1
ok








a

https://www.siteground.com/


1
ok








a

https://www.squarespace.com/


1
ok








a

https://www.vpsserver.com/


1
ok








a

https://www.vtex.com/


1
ok








a

https://www.vultr.com


1
ok








a

https://www.wix.com/


1
ok








a

https://www.wpbeginner.com/


1
ok








a

https://www.zendesk.com/


1
ok








a

https://yubico.com/


1
ok








iframe
src
https://outreach.abetterinternet.org/l/1011011/2023-02-16/6l51


1
ok








img
src
/images/language-icon128px-black.png


1
ok
no alt-Attribute








img
src
/images/letsencrypt-logo-horizontal.svg


1
ok
alt: Let's Encrypt








img
src
/images/sponsors/small/3cx-logo.png


1
ok
alt: 3CX








img
src
/images/sponsors/small/4kdownload-logo.png


1
ok
alt: Video Downloader








img
src
/images/sponsors/small/acton-family-giving-logo.png


1
ok
alt: Acton Family Giving








img
src
/images/sponsors/small/ads-com-logo.png


1
ok
alt: Ads.com








img
src
/images/sponsors/small/akamai-logo.png


1
ok
alt: Akamai








img
src
/images/sponsors/small/automattic-logo.png


1
ok
alt: Automattic








img
src
/images/sponsors/small/aws-logo-2.png


1
ok
alt: Amazon Web Services








img
src
/images/sponsors/small/bitlaunch-logo.svg


1
ok
alt: BitLaunch








img
src
/images/sponsors/small/brave-logo.png


1
ok
alt: Brave








img
src
/images/sponsors/small/cargo-logo.png


1
ok
alt: Cargo








img
src
/images/sponsors/small/cdmon-logo.png


1
ok
alt: cdmon








img
src
/images/sponsors/small/chrome-logo.png


1
ok
alt: Google Chrome








img
src
/images/sponsors/small/cisco-logo.png


1
ok
alt: Cisco








img
src
/images/sponsors/small/clevercloud-logo.png


1
ok
alt: Clever Cloud








img
src
/images/sponsors/small/cloudera-logo.png


1
ok
alt: Cloudera








img
src
/images/sponsors/small/confluent-logo.svg


1
ok
alt: Confluent








img
src
/images/sponsors/small/cryptotracker-logo.svg


1
ok
alt: Crypto Tracker








img
src
/images/sponsors/small/cyon-logo.png


1
ok
alt: Cyon








img
src
/images/sponsors/small/dan-com-logo.png


1
ok
alt: Dan.com








img
src
/images/sponsors/small/discourse-logo.png


1
ok
alt: Discourse








img
src
/images/sponsors/small/dnsimple-logo.png


1
ok
alt: dnsimple








img
src
/images/sponsors/small/domainnameshop-logo.png


1
ok
alt: DomainName.Shop








img
src
/images/sponsors/small/driving-tests-logo.png


1
ok
alt: driving-tests.org








img
src
/images/sponsors/small/duda-logo.png


1
ok
alt: Duda








img
src
/images/sponsors/small/duocircle-logo.png


1
ok
alt: DuoCircle








img
src
/images/sponsors/small/eff-logo.png


1
ok
alt: Electronic Frontier Foundation








img
src
/images/sponsors/small/entri-logo.svg


1
ok
alt: Entri








img
src
/images/sponsors/small/fastly-logo.png


1
ok
alt: Fastly








img
src
/images/sponsors/small/ford-foundation-logo.png


1
ok
alt: Ford Foundation








img
src
/images/sponsors/small/github-logo.png


1
ok
alt: GitHub








img
src
/images/sponsors/small/greengeeks-logo.png


1
ok
alt: GreenGeeks








img
src
/images/sponsors/small/hackthebox-logo.png


1
ok
alt: Hack the Box








img
src
/images/sponsors/small/haproxy-logo.png


1
ok
alt: HAProxy








img
src
/images/sponsors/small/hawkhost-logo.png


1
ok
alt: Hawk Host








img
src
/images/sponsors/small/heroku-logo.png


1
ok
alt: Heroku








img
src
/images/sponsors/small/hostpapa-logo.png


1
ok
alt: HostPapa








img
src
/images/sponsors/small/hostpoint-logo.png


1
ok
alt: HostPoint








img
src
/images/sponsors/small/hostscore-logo.png


1
ok
alt: HostScore








img
src
/images/sponsors/small/hoststar-logo.png


1
ok
alt: Hoststar








img
src
/images/sponsors/small/iban-logo.png


1
ok
alt: IBAN








img
src
/images/sponsors/small/ibm-logo.png


1
ok
alt: IBM








img
src
/images/sponsors/small/identrust-logo.png


1
ok
alt: IdenTrust








img
src
/images/sponsors/small/infomaniak-logo.png


1
ok
alt: Infomaniak








img
src
/images/sponsors/small/ipinfo-logo.png


1
ok
alt: IPInfo








img
src
/images/sponsors/small/jetbrains-logo.png


1
ok
alt: Jet Brains








img
src
/images/sponsors/small/jimdo-logo.png


1
ok
alt: Jimdo








img
src
/images/sponsors/small/keenetic-logo.png


1
ok
alt: Keenetic








img
src
/images/sponsors/small/livesport-logo.png


1
ok
alt: Livesport








img
src
/images/sponsors/small/manualsbrain-logo.png


1
ok
alt: ManualsBrain








img
src
/images/sponsors/small/meta-logo.png


1
ok
alt: Meta








img
src
/images/sponsors/small/mongodb-logo.png


1
ok
alt: MongoDB








img
src
/images/sponsors/small/mozilla-logo.png


1
ok
alt: Mozilla








img
src
/images/sponsors/small/nabu-casa-logo.png


1
ok
alt: Nabu Casa








img
src
/images/sponsors/small/netlify-logo.png


1
ok
alt: Netlify








img
src
/images/sponsors/small/nginx-logo.png


1
ok
alt: NGINX








img
src
/images/sponsors/small/ngrok-logo.png


1
ok
alt: Ngrok








img
src
/images/sponsors/small/one-com-logo.png


1
ok
alt: one.com








img
src
/images/sponsors/small/ovh-logo.png


1
ok
alt: OVH








img
src
/images/sponsors/small/pantheon-logo.png


1
ok
alt: Pantheon Website Management Platform








img
src
/images/sponsors/small/planethoster-logo.png


1
ok
alt: Hébergement web








img
src
/images/sponsors/small/plat-ai-logo.svg


1
ok
alt: Plat.ai








img
src
/images/sponsors/small/rack-speed-logo.png


1
ok
alt: RACK::SPEED








img
src
/images/sponsors/small/redacted-logo.png


1
ok
alt: Redacted








img
src
/images/sponsors/small/redhat-logo.png


1
ok
alt: RedHat








img
src
/images/sponsors/small/render-logo.png


1
ok
alt: Render








img
src
/images/sponsors/small/sakura-logo.png


1
ok
alt: Sakura Internet








img
src
/images/sponsors/small/sap-logo.png


1
ok
alt: SAP








img
src
/images/sponsors/small/serverpilot-logo.png


1
ok
alt: ServerPilot








img
src
/images/sponsors/small/shiguredo-v2-logo.svg


1
ok
alt: Shiguredo








img
src
/images/sponsors/small/shopify-logo.png


1
ok
alt: Shopify








img
src
/images/sponsors/small/siteground-logo.png


1
ok
alt: SiteGround








img
src
/images/sponsors/small/smallstep-logo.png


1
ok
alt: Smallstep








img
src
/images/sponsors/small/snipe-it-logo.png


1
ok
alt: Snipe-IT








img
src
/images/sponsors/small/squarespace-logo.png


1
ok
alt: Squarespace








img
src
/images/sponsors/small/tailscale-logo.svg


1
ok
alt: Tailscale








img
src
/images/sponsors/small/teleport-logo.png


1
ok
alt: Teleport








img
src
/images/sponsors/small/thebestvpn-logo.png


1
ok
alt: The Best VPN








img
src
/images/sponsors/small/unraid-logo.png


1
ok
alt: Lime Technology (Unraid)








img
src
/images/sponsors/small/vilros-logo.png


1
ok
alt: Vilros








img
src
/images/sponsors/small/VPSServer-logo.svg


1
ok
alt: VPSServer.com








img
src
/images/sponsors/small/vtex-logo.png


1
ok
alt: VTEX








img
src
/images/sponsors/small/vultr-logo.png


1
ok
alt: Vultr








img
src
/images/sponsors/small/wix-logo.png


1
ok
alt: Wix








img
src
/images/sponsors/small/wpbeginner-logo.png


1
ok
alt: WPBeginner








img
src
/images/sponsors/small/yubico-logo.png


1
ok
alt: Yubico








img
src
/images/sponsors/small/zendesk-logo.png


1
ok
alt: Zendesk








link
alternate
/feed.xml


1
ok








link
canonical
/


1
ok








link
stylesheet
/css/main.min.c0be43db7dafc5dec6b0f72882a95c97ea4431cc0b5e4aa0ffc0e20e69225a43c11a4fbcbc70f8b6e7f399656c72db7c7dda2483a4fafaac80a16b2d29ee1cdf.css


1
ok






SRI found. Integrity:
sha512-wL5D232vxd7GsPcogqlcl&#43;pEMcwLXkqg/8DiDmkiWkPBGk&#43;8vHD4tufzmWVsctt8fdokg6T6&#43;qyAoWstKe4c3w==
crossorigin: no crossorigin defined
not checked



link
stylesheet
/fontawesome-free-5.12.1-web/css/all.min.css


1
ok








meta

utf-8


1
ok








meta
X-UA-Compatible
IE=edge


1
ok








meta
description
Let's Encrypt is a free, automated, and open certificate authority brought to you by the nonprofit Internet Security Research Group (ISRG).


1
ok








meta
generator
Hugo 0.89.1


1
ok








meta
og:image
https://letsencrypt.org/images/LetsEncrypt-SocialShare.png


1
ok








meta
twitter:card
summary


1
ok








meta
twitter:description
Let's Encrypt is a free, automated, and open certificate authority brought to you by the nonprofit Internet Security Research Group (ISRG).


1
ok








meta
twitter:image:src
https://letsencrypt.org/images/le-logo-twitter-noalpha.png


1
ok








meta
twitter:site
@letsencrypt


1
ok








meta
twitter:title
Let's Encrypt


1
ok








meta
twitter:url
https://letsencrypt.org/


1
ok








meta
viewport
width=device-width initial-scale=1


1
ok








script
src
/js/main.9c0b9add2dc0db21de0f695103830dbde01e31d77fa9a2db9ac3c1b9e09e4806f2e0d9a7281b06461b2e162a3560c605b038169b42ff376b4cd28cc71203c8f0.js


1
ok
Missing defer / async attribute.






SRI found. Integrity:
sha512-nAua3S3A2yHeD2lRA4MNveAeMdd/qaLbmsPBueCeSAby4NmnKBsGRhsuFio1YMYFsDgWm0L/N2tM0ozHEgPI8A==
crossorigin: no crossorigin defined
not checked



12. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: owen.ns.cloudflare.com, vera.ns.cloudflare.com

QNr.DomainTypeNS used
1
com
NS
e.root-servers.net (2001:500:a8::e)

Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
2
owen.ns.cloudflare.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns3.cloudflare.com, ns4.cloudflare.com, ns5.cloudflare.com, ns6.cloudflare.com, ns7.cloudflare.com

Answer: ns3.cloudflare.com
162.159.0.33, 162.159.7.226, 2400:cb00:2049:1::a29f:21, 2400:cb00:2049:1::a29f:7e2

Answer: ns4.cloudflare.com
162.159.1.33, 162.159.8.55, 2400:cb00:2049:1::a29f:121, 2400:cb00:2049:1::a29f:837

Answer: ns5.cloudflare.com
162.159.2.9, 162.159.9.55, 2400:cb00:2049:1::a29f:209, 2400:cb00:2049:1::a29f:937

Answer: ns6.cloudflare.com
162.159.3.11, 162.159.5.6, 2400:cb00:2049:1::a29f:30b, 2400:cb00:2049:1::a29f:506

Answer: ns7.cloudflare.com
162.159.4.8
3
vera.ns.cloudflare.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns3.cloudflare.com, ns4.cloudflare.com, ns5.cloudflare.com, ns6.cloudflare.com, ns7.cloudflare.com

Answer: ns3.cloudflare.com
162.159.0.33, 162.159.7.226, 2400:cb00:2049:1::a29f:21, 2400:cb00:2049:1::a29f:7e2

Answer: ns4.cloudflare.com
162.159.1.33, 162.159.8.55, 2400:cb00:2049:1::a29f:121, 2400:cb00:2049:1::a29f:837

Answer: ns5.cloudflare.com
162.159.2.9, 162.159.9.55, 2400:cb00:2049:1::a29f:209, 2400:cb00:2049:1::a29f:937

Answer: ns6.cloudflare.com
162.159.3.11, 162.159.5.6, 2400:cb00:2049:1::a29f:30b, 2400:cb00:2049:1::a29f:506

Answer: ns7.cloudflare.com
162.159.4.8
4
owen.ns.cloudflare.com: 108.162.193.219, 172.64.33.219, 173.245.59.219
A
ns3.cloudflare.com (2400:cb00:2049:1::a29f:21)
5
owen.ns.cloudflare.com: 2606:4700:58::adf5:3bdb, 2803:f800:50::6ca2:c1db, 2a06:98c1:50::ac40:21db
AAAA
ns3.cloudflare.com (2400:cb00:2049:1::a29f:21)
6
vera.ns.cloudflare.com: 108.162.192.147, 172.64.32.147, 173.245.58.147
A
ns3.cloudflare.com (2400:cb00:2049:1::a29f:21)
7
vera.ns.cloudflare.com: 2606:4700:50::adf5:3a93, 2803:f800:50::6ca2:c093, 2a06:98c1:50::ac40:2093
AAAA
ns3.cloudflare.com (2400:cb00:2049:1::a29f:21)


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
valid-isrgrootx2.letsencrypt.org
0

no CAA entry found
1
0
origin.letsencrypt.org
0

no CAA entry found
1
0
letsencrypt.org
0

no CAA entry found
1
0

0

no CAA entry found
1
0
org
0

no CAA entry found
1
0

0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
letsencrypt.org
intacct-esk=C2001C6E162DDB5CE0539A220D0AE039
ok
1
0
letsencrypt.org
v=spf1 include:_spf.google.com ip4:23.178.112.0/24 ip4:66.133.109.36 ip4:64.78.149.164 include:spf.mandrillapp.com include:mail.zendesk.com include:shops.shopify.com include:_spf.intacct.com include:mg-spf.greenhouse.io -all
ok
1
0
valid-isrgrootx2.letsencrypt.org

ok
1
0
_acme-challenge.origin.letsencrypt.org

Name Error - The domain name does not exist
1
0
_acme-challenge.valid-isrgrootx2.letsencrypt.org

Name Error - The domain name does not exist
1
0
_acme-challenge.origin.letsencrypt.org.origin.letsencrypt.org

Name Error - The domain name does not exist
1
0
_acme-challenge.valid-isrgrootx2.letsencrypt.org.letsencrypt.org

Name Error - The domain name does not exist
1
0
_acme-challenge.valid-isrgrootx2.letsencrypt.org.valid-isrgrootx2.letsencrypt.org

Name Error - The domain name does not exist
1
0


15. DomainService - Entries

No DomainServiceEntries entries found



16. Cipher Suites

DomainIPPortCipher (OpenSsl / IANA)
valid-isrgrootx2.letsencrypt.org
52.9.173.94
443
ECDHE-ECDSA-AES256-GCM-SHA384
(Recommended)
TLSv1.2
0xC0,0x2C
FS
6 Ciphers, 98.13 sec
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
ECDH
ECDSA
AESGCM(256)
AEAD



ECDHE-ECDSA-AES128-GCM-SHA256
(Recommended)
TLSv1.2
0xC0,0x2B
FS

TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
ECDH
ECDSA
AESGCM(128)
AEAD



ECDHE-ECDSA-AES256-SHA384
(Weak)
TLSv1.2
0xC0,0x24
FS

TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
ECDH
ECDSA
AES(256)
SHA384



ECDHE-ECDSA-AES128-SHA256
(Weak)
TLSv1.2
0xC0,0x23
FS

TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
ECDH
ECDSA
AES(128)
SHA256



ECDHE-ECDSA-AES256-SHA
(Weak)
TLSv1
0xC0,0x0A
FS

TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
ECDH
ECDSA
AES(256)
SHA1



ECDHE-ECDSA-AES128-SHA
(Weak)
TLSv1
0xC0,0x09
FS

TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
ECDH
ECDSA
AES(128)
SHA1


17. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.



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Last Result: https://check-your-website.server-daten.de/?q=valid-isrgrootx2.letsencrypt.org - 2023-09-18 21:25:07


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