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


 

 

A

 

Top config

 

Checked:
08.05.2021 15:25:26

 

Older results

No older results found

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
blog.winterslu.com
A
206.189.70.91
Santa Clara/California/United States (US) - DigitalOcean, LLC
No Hostname found
yes
1
0

AAAA

yes


www.blog.winterslu.com

Name Error
yes
1
0
*.winterslu.com
A
Refused
yes



AAAA
Refused
yes



CNAME
Refused
yes


*.blog.winterslu.com
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 14631, 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: 22.05.2021, 00:00:00 +, Signature-Inception: 01.05.2021, 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: com

com
1 DS RR in the parent zone found






DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest 4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=






1 RRSIG RR to validate DS RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 21.05.2021, 05:00:00 +, Signature-Inception: 08.05.2021, 04:00:00 +, KeyTag 14631, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 14631 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 30909, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 54714, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 15.05.2021, 18:24:21 +, Signature-Inception: 30.04.2021, 18:19:21 +, KeyTag 30909, Signer-Name: com






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 30909 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest "4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: winterslu.com

winterslu.com
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 "bpn5jbdpgf3fa4li8dld9vdiee4ors8r" between the hashed NSEC3-owner "bpn4takakmi9nf965t4sv0p2m7ikbniv" and the hashed NextOwner "bpn5l6kde2keicgou63d15vraag7pdm6". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner bpn4takakmi9nf965t4sv0p2m7ikbniv.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 14.05.2021, 04:59:26 +, Signature-Inception: 07.05.2021, 03:49:26 +, KeyTag 54714, Signer-Name: com






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q1gin43n1arrc9osm6qpqr81h5m9a". So that domain name is the Closest Encloser of "winterslu.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 12.05.2021, 04:24:06 +, Signature-Inception: 05.05.2021, 03:14:06 +, KeyTag 54714, Signer-Name: com






0 DNSKEY RR found









Zone: blog.winterslu.com

blog.winterslu.com
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: www.blog.winterslu.com

www.blog.winterslu.com
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
www.blog.winterslu.com
  ns1.digitalocean.com

blog.winterslu.com
  ns1.digitalocean.com / 67m39
173.245.58.51
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::adf5:3a33
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns2.digitalocean.com / 67m28
173.245.59.41
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::adf5:3b29
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns3.digitalocean.com / 67m28
198.41.222.173
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::c629:dead
Columbus/North Carolina/United States (US) - CLOUDFLARE

winterslu.com
  ns1.digitalocean.com / 67m39
173.245.58.51
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::adf5:3a33
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns2.digitalocean.com / 67m28
173.245.59.41
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::adf5:3b29
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns3.digitalocean.com / 67m28
198.41.222.173
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::c629:dead
Columbus/North Carolina/United States (US) - CLOUDFLARE

com
  a.gtld-servers.net / nnn1-fra8


  b.gtld-servers.net / nnn1-eltxl2


  c.gtld-servers.net / nnn1-fra8


  d.gtld-servers.net / nnn1-fra8


  e.gtld-servers.net / nnn1-fra8


  f.gtld-servers.net / nnn1-ams6


  g.gtld-servers.net / nnn1-ams6


  h.gtld-servers.net / nnn1-ams6


  i.gtld-servers.net / nnn1-ams6


  j.gtld-servers.net / nnn1-ein1


  k.gtld-servers.net / nnn1-ein1


  l.gtld-servers.net / nnn1-ein1


  m.gtld-servers.net / nnn1-ein1

 

4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1620480322
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:2


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1620480307
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:11


Domain:winterslu.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:6


Domain:blog.winterslu.com
Zone-Name:blog.winterslu.com
Primary:ns1.digitalocean.com
Mail:hostmaster.blog.winterslu.com
Serial:1613422743
Refresh:10800
Retry:3600
Expire:604800
TTL:1800
num Entries:6


Domain:www.blog.winterslu.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


5. Screenshots

Startaddress: https://blog.winterslu.com/private/?r=%2F, address used: https://blog.winterslu.com/private/?r=%2F, Screenshot created 2021-05-08 15:26:45 +00:0

 

Mobil (412px x 732px)

 

321 milliseconds

 

Screenshot mobile - https://blog.winterslu.com/private/?r=%2F
Mobil + Landscape (732px x 412px)

 

294 milliseconds

 

Screenshot mobile landscape - https://blog.winterslu.com/private/?r=%2F
Screen (1280px x 1680px)

 

937 milliseconds

 

Screenshot Desktop - https://blog.winterslu.com/private/?r=%2F

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport412732
content Size412732

 

Good: No horizontal scrollbar. Content-size width = visual Viewport width.

 

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.2, ECDHE_RSA with P-384, and CHACHA20_POLY1305.

 

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

 

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://blog.winterslu.com/
206.189.70.91
301
https://blog.winterslu.com/
Html is minified: 100.00 %
0.330
A
Server: nginx/1.14.0 (Ubuntu)
Date: Sat, 08 May 2021 13:26:03 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 61
Connection: close
X-Powered-By: Express
Cache-Control: public, max-age=31536000
Location: https://blog.winterslu.com/
Vary: Accept, Accept-Encoding

• https://blog.winterslu.com/
206.189.70.91
302
https://blog.winterslu.com/private/?r=%2F
Html is minified: 100.00 %
5.673
A
Server: nginx/1.14.0 (Ubuntu)
Date: Sat, 08 May 2021 13:26:04 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 37
Connection: close
X-Powered-By: Express
Location: /private/?r=%2F
Vary: Accept, Accept-Encoding
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff

• https://blog.winterslu.com/private/?r=%2F

Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 154.81 %
Other inline scripts (∑/total): 0/0
4.890
A
small visible content (num chars: 30)
This site is private Enter Now
Server: nginx/1.14.0 (Ubuntu)
Date: Sat, 08 May 2021 13:26:17 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
X-Powered-By: Express
Cache-Control: no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0
ETag: W/"a2f-wUCqe8JsKop9NqMr81kLuWN932g"
Vary: Accept-Encoding
Content-Encoding: gzip
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff

• http://blog.winterslu.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
206.189.70.91
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 108.54 %
Other inline scripts (∑/total): 0/0
0.333
A
Not Found
Visible Content: 404 Not Found nginx/1.14.0 (Ubuntu)
Server: nginx/1.14.0 (Ubuntu)
Date: Sat, 08 May 2021 13:26:10 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: close
Content-Encoding: gzip

• https://206.189.70.91/
206.189.70.91
302
https://blog.winterslu.com/private/?r=%2F
Html is minified: 100.00 %
5.500
N
Certificate error: RemoteCertificateNameMismatch
Server: nginx/1.14.0 (Ubuntu)
Date: Sat, 08 May 2021 13:26:11 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 37
Connection: close
X-Powered-By: Express
Location: /private/?r=%2F
Vary: Accept, Accept-Encoding
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
X-Frame-Options: SAMEORIGIN
X-Content-Type-Options: nosniff

 

7. Comments


1. General Results, most used to calculate the result

Aname "blog.winterslu.com" is subdomain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 57967 (complete: 151507)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: blog.winterslu.com 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: blog.winterslu.com 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://blog.winterslu.com/ 206.189.70.91
302
https://blog.winterslu.com/private/?r=%2F
Correct redirect https to https
Ahttps://206.189.70.91/ 206.189.70.91
302
https://blog.winterslu.com/private/?r=%2F
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
AGood: HSTS max-age is long enough, 63072000 seconds = 730 days
AGood: HSTS has includeSubdomains - directive
AGood: HSTS has preload directive
Warning: HSTS preload sent, but not in Preload-List. Never send a preload directive if you don't know what preload means. Check https://hstspreload.org/ to learn the basics about the Google-Preload list. If you send a preload directive, you should **immediately** add your domain to the HSTS preload list via https://hstspreload.org/ . If Google accepts the domain, so the status is "pending": Note that new entries are hardcoded into the Chrome source code and can take several months before they reach the stable version. So you will see this message some months. If you don't want that or if you don't understand "preload", but if you send a preload directive and if you have correct A-redirects, everybody can add your domain to that list. Then you may have problems, it's not easy to undo that. So if you don't want your domain preloaded, remove the preload directive.
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 (2 urls)
http://blog.winterslu.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 206.189.70.91


Url with incomplete Content-Type - header - missing charset
Ahttp://blog.winterslu.com/ 206.189.70.91
301
https://blog.winterslu.com/
Correct redirect http - https with the same domain name
Nhttps://206.189.70.91/ 206.189.70.91
302
https://blog.winterslu.com/private/?r=%2F
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
XFatal error: Nameserver doesn't support TCP connection: ns1.digitalocean.com / 173.245.58.51: Refused
XFatal error: Nameserver doesn't support TCP connection: ns1.digitalocean.com / 2400:cb00:2049:1::adf5:3a33: Refused
XFatal error: Nameserver doesn't support TCP connection: ns2.digitalocean.com / 173.245.59.41: Refused
XFatal error: Nameserver doesn't support TCP connection: ns2.digitalocean.com / 2400:cb00:2049:1::adf5:3b29: Refused
XFatal error: Nameserver doesn't support TCP connection: ns3.digitalocean.com / 198.41.222.173: Refused
XFatal error: Nameserver doesn't support TCP connection: ns3.digitalocean.com / 2400:cb00:2049:1::c629:dead: Refused
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 the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain blog.winterslu.com, 1 ip addresses, 1 different http results.

2. Header-Checks


3. DNS- and NameServer - Checks

AInfo:: 10 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 3 Name Servers.
AInfo:: 10 Queries complete, 10 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
Ok (4 - 8):: An average of 3.3 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 3 different Name Servers found: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com, 3 Name Servers included in Delegation: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com, 3 Name Servers included in 1 Zone definitions: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com, 1 Name Servers listed in SOA.Primary: ns1.digitalocean.com.
AGood: Only one SOA.Primary Name Server found.: ns1.digitalocean.com.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.digitalocean.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: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.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: 3 different Name Servers found
AGood: All name servers have ipv4- and ipv6-addresses.: 3 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.: 3 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: digitalocean.com
Warning: All Name Servers from the same Country / IP location.: 3 Name Servers, 1 Countries: US
AInfo: Ipv4-Subnet-list: 3 Name Servers, 2 different subnets (first Byte): 173., 198., 2 different subnets (first two Bytes): 173.245., 198.41., 3 different subnets (first three Bytes): 173.245.58., 173.245.59., 198.41.222.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 3 Name Servers with IPv6, 1 different subnets (first block): 2400:, 1 different subnets (first two blocks): 2400:cb00:, 1 different subnets (first three blocks): 2400:cb00:2049:, 1 different subnets (first four blocks): 2400:cb00:2049:0001:
Fatal: All Name Server IPv6 addresses from the same subnet.
AGood: Nameserver supports TCP connections: 6 good Nameserver
AGood: Nameserver supports Echo Capitalization: 6 good Nameserver
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: ns1.digitalocean.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.
Nameserver doesn't pass all EDNS-Checks: ns1.digitalocean.com / 173.245.58.51: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (67m39). COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns1.digitalocean.com / 2400:cb00:2049:1::adf5:3a33: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (67m39). COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.digitalocean.com / 173.245.59.41: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (67m28). COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.digitalocean.com / 2400:cb00:2049:1::adf5:3b29: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (67m24). COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.digitalocean.com / 198.41.222.173: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (67m28). COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.digitalocean.com / 2400:cb00:2049:1::c629:dead: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found (67m28). COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
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 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
AGood: No https + http status 200 with inline CSS / JavaScript found
https://blog.winterslu.com/private/?r=%2F
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.
AGood: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 1 external CSS / JavaScript files found
AGood: All CSS / JavaScript files are sent with a long Cache-Control header (minimum 7 days). So the browser can re-use these files, no download is required. 1 external CSS / JavaScript files with long Cache-Control max-age found
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AInfo: No img element found, no alt attribute checked
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
ADuration: 85506 milliseconds, 85.506 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
blog.winterslu.com
blog.winterslu.com
443
ok
Tls12
ECDH Ephermal
384
Aes128
128
Sha256
supported
ok
blog.winterslu.com
blog.winterslu.com
443
ok
Tls12

ECDH Ephermal
384
Aes128
128
Sha256
supported
ok
http/2 via ALPN supported 
Tls.1.2
Tls.1.1
Tls.1.0
http/2 via ALPN supported
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=blog.winterslu.com


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


blog.winterslu.com
206.189.70.91
443
ok
Tls12
ECDH Ephermal
384
Aes128
128
Sha256
supported
ok

blog.winterslu.com
206.189.70.91
443
ok
Tls12

ECDH Ephermal
384
Aes128
128
Sha256
supported
ok
http/2 via ALPN supported 
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
http/2 via ALPN supported
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=blog.winterslu.com


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


206.189.70.91
206.189.70.91
443
name does not match
Tls12
ECDH Ephermal
384
Aes128
128
Sha256
supported
ok

206.189.70.91
206.189.70.91
443
name does not match
Tls12

ECDH Ephermal
384
Aes128
128
Sha256
supported
ok
http/2 via ALPN supported 
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
http/2 via ALPN supported
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete

1CN=blog.winterslu.com


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

 

9. Certificates

1.
1.
CN=blog.winterslu.com
15.02.2021
16.05.2021
1369 days expired
blog.winterslu.com - 1 entry
1.
1.
CN=blog.winterslu.com
15.02.2021

16.05.2021
1369 days expired


blog.winterslu.com - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:04F20D3620CCEE39F375DF48EFD3A40765FE
Thumbprint:662BE07C43842D79D36CE9513B2D10984230DC31
SHA256 / Certificate:HAbZmASXXe5+++LZS/IISNrB4ey6NlNcGZe+aza/YFo=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):f70981a7be0ea9c0b82b15e89b66a8e3e53f0a64664f616b3de9a8966bf59328
SHA256 hex / Subject Public Key Information (SPKI):f70981a7be0ea9c0b82b15e89b66a8e3e53f0a64664f616b3de9a8966bf59328
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
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
07.10.2020
29.09.2021
1233 days expired


2.
CN=R3, O=Let's Encrypt, C=US
07.10.2020

29.09.2021
1233 days expired




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:400175048314A4C8218C84A90C16CDDF
Thumbprint:48504E974C0DAC5B5CD476C8202274B24C8C7172
SHA256 / Certificate:cwwb3NhfV85dwLunM+XxulqSWyp3HWQKJvekVCJNrTs=
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:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
1232 days expired


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000

30.09.2021
1232 days expired




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:44AFB080D6A327BA893039862EF8406B
Thumbprint:DAC9024F54D8F6DF94935FB1732638CA6AD77C13
SHA256 / Certificate:BocmAzGnJAPZCfEF5pvPDTLhvSST/8bZIG0RvNZ3Bzk=
SHA256 hex / Cert (DANE * 0 1):0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
SHA256 hex / PublicKey (DANE * 1 1):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
SHA256 hex / Subject Public Key Information (SPKI):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
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)

Small Code Update - wait one minute

 

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

Small Code Update - wait one minute

 

11. Html-Content - Entries

Summary

No data found or small Code-update

 

Details (currently limited to 500 rows - some problems with spam users)

Small Code Update - wait one minute

 

12. Html-Parsing via https://validator.w3.org/nu/

Small Code update, wait one minute

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com

 

QNr.DomainTypeNS used
1
com
NS
d.root-servers.net (2001:500:2d::d)

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
ns1.digitalocean.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: kim.ns.cloudflare.com, walt.ns.cloudflare.com

Answer: kim.ns.cloudflare.com
108.162.192.126, 172.64.32.126, 173.245.58.126, 2606:4700:50::adf5:3a7e, 2803:f800:50::6ca2:c07e, 2a06:98c1:50::ac40:207e

Answer: walt.ns.cloudflare.com
108.162.193.148, 172.64.33.148, 173.245.59.148, 2606:4700:58::adf5:3b94, 2803:f800:50::6ca2:c194, 2a06:98c1:50::ac40:2194
3
ns2.digitalocean.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: kim.ns.cloudflare.com, walt.ns.cloudflare.com

Answer: kim.ns.cloudflare.com
108.162.192.126, 172.64.32.126, 173.245.58.126, 2606:4700:50::adf5:3a7e, 2803:f800:50::6ca2:c07e, 2a06:98c1:50::ac40:207e

Answer: walt.ns.cloudflare.com
108.162.193.148, 172.64.33.148, 173.245.59.148, 2606:4700:58::adf5:3b94, 2803:f800:50::6ca2:c194, 2a06:98c1:50::ac40:2194
4
ns3.digitalocean.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: kim.ns.cloudflare.com, walt.ns.cloudflare.com

Answer: kim.ns.cloudflare.com
108.162.192.126, 172.64.32.126, 173.245.58.126, 2606:4700:50::adf5:3a7e, 2803:f800:50::6ca2:c07e, 2a06:98c1:50::ac40:207e

Answer: walt.ns.cloudflare.com
108.162.193.148, 172.64.33.148, 173.245.59.148, 2606:4700:58::adf5:3b94, 2803:f800:50::6ca2:c194, 2a06:98c1:50::ac40:2194
5
ns1.digitalocean.com: 173.245.58.51
A
kim.ns.cloudflare.com (2606:4700:50::adf5:3a7e)
6
ns1.digitalocean.com: 2400:cb00:2049:1::adf5:3a33
AAAA
kim.ns.cloudflare.com (2606:4700:50::adf5:3a7e)
7
ns2.digitalocean.com: 173.245.59.41
A
kim.ns.cloudflare.com (2606:4700:50::adf5:3a7e)
8
ns2.digitalocean.com: 2400:cb00:2049:1::adf5:3b29
AAAA
kim.ns.cloudflare.com (2606:4700:50::adf5:3a7e)
9
ns3.digitalocean.com: 198.41.222.173
A
kim.ns.cloudflare.com (2606:4700:50::adf5:3a7e)
10
ns3.digitalocean.com: 2400:cb00:2049:1::c629:dead
AAAA
kim.ns.cloudflare.com (2606:4700:50::adf5:3a7e)

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
blog.winterslu.com
0

no CAA entry found
1
0
winterslu.com
-5

Refused - The name server refuses to perform the specified operation for policy reasons
1
0
com
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
winterslu.com

Refused - The name server refuses to perform the specified operation for policy reasons
1
0
blog.winterslu.com

ok
1
0
_acme-challenge.blog.winterslu.com

Name Error - The domain name does not exist
1
0
_acme-challenge.blog.winterslu.com.winterslu.com

Refused - The name server refuses to perform the specified operation for policy reasons
1
0
_acme-challenge.blog.winterslu.com.blog.winterslu.com

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

No Ciphers found

 

18. Portchecks

DomainIPPortDescriptionResultAnswer
blog.winterslu.com
206.189.70.91
21
FTP



blog.winterslu.com
206.189.70.91
21
FTP



blog.winterslu.com
206.189.70.91
22
SSH



blog.winterslu.com
206.189.70.91
22
SSH



blog.winterslu.com
206.189.70.91
25
SMTP



blog.winterslu.com
206.189.70.91
25
SMTP



blog.winterslu.com
206.189.70.91
53
DNS



blog.winterslu.com
206.189.70.91
53
DNS



blog.winterslu.com
206.189.70.91
110
POP3



blog.winterslu.com
206.189.70.91
110
POP3



blog.winterslu.com
206.189.70.91
143
IMAP



blog.winterslu.com
206.189.70.91
143
IMAP



blog.winterslu.com
206.189.70.91
465
SMTP (encrypted)



blog.winterslu.com
206.189.70.91
465
SMTP (encrypted)



blog.winterslu.com
206.189.70.91
587
SMTP (encrypted, submission)



blog.winterslu.com
206.189.70.91
587
SMTP (encrypted, submission)



blog.winterslu.com
206.189.70.91
993
IMAP (encrypted)



blog.winterslu.com
206.189.70.91
993
IMAP (encrypted)



blog.winterslu.com
206.189.70.91
995
POP3 (encrypted)



blog.winterslu.com
206.189.70.91
995
POP3 (encrypted)



blog.winterslu.com
206.189.70.91
1433
MS SQL



blog.winterslu.com
206.189.70.91
1433
MS SQL



blog.winterslu.com
206.189.70.91
2082
cPanel (http)



blog.winterslu.com
206.189.70.91
2082
cPanel (http)



blog.winterslu.com
206.189.70.91
2083
cPanel (https)



blog.winterslu.com
206.189.70.91
2083
cPanel (https)



blog.winterslu.com
206.189.70.91
2086
WHM (http)



blog.winterslu.com
206.189.70.91
2086
WHM (http)



blog.winterslu.com
206.189.70.91
2087
WHM (https)



blog.winterslu.com
206.189.70.91
2087
WHM (https)



blog.winterslu.com
206.189.70.91
2089
cPanel Licensing



blog.winterslu.com
206.189.70.91
2089
cPanel Licensing



blog.winterslu.com
206.189.70.91
2095
cPanel Webmail (http)



blog.winterslu.com
206.189.70.91
2095
cPanel Webmail (http)



blog.winterslu.com
206.189.70.91
2096
cPanel Webmail (https)



blog.winterslu.com
206.189.70.91
2096
cPanel Webmail (https)



blog.winterslu.com
206.189.70.91
2222
DirectAdmin (http)



blog.winterslu.com
206.189.70.91
2222
DirectAdmin (http)



blog.winterslu.com
206.189.70.91
2222
DirectAdmin (https)



blog.winterslu.com
206.189.70.91
2222
DirectAdmin (https)



blog.winterslu.com
206.189.70.91
3306
mySql



blog.winterslu.com
206.189.70.91
3306
mySql



blog.winterslu.com
206.189.70.91
5224
Plesk Licensing



blog.winterslu.com
206.189.70.91
5224
Plesk Licensing



blog.winterslu.com
206.189.70.91
5432
PostgreSQL



blog.winterslu.com
206.189.70.91
5432
PostgreSQL



blog.winterslu.com
206.189.70.91
8080
Ookla Speedtest (http)



blog.winterslu.com
206.189.70.91
8080
Ookla Speedtest (http)



blog.winterslu.com
206.189.70.91
8080
Ookla Speedtest (https)



blog.winterslu.com
206.189.70.91
8080
Ookla Speedtest (https)



blog.winterslu.com
206.189.70.91
8083
VestaCP http



blog.winterslu.com
206.189.70.91
8083
VestaCP http



blog.winterslu.com
206.189.70.91
8083
VestaCP https



blog.winterslu.com
206.189.70.91
8083
VestaCP https



blog.winterslu.com
206.189.70.91
8443
Plesk Administration (https)



blog.winterslu.com
206.189.70.91
8443
Plesk Administration (https)



blog.winterslu.com
206.189.70.91
8447
Plesk Installer + Updates



blog.winterslu.com
206.189.70.91
8447
Plesk Installer + Updates



blog.winterslu.com
206.189.70.91
8880
Plesk Administration (http)



blog.winterslu.com
206.189.70.91
8880
Plesk Administration (http)



blog.winterslu.com
206.189.70.91
10000
Webmin (http)



blog.winterslu.com
206.189.70.91
10000
Webmin (http)



blog.winterslu.com
206.189.70.91
10000
Webmin (https)



blog.winterslu.com
206.189.70.91
10000
Webmin (https)



 

 

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