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




X

DNS-problem - authoritative Nameserver refused, not defined or timeout

Checked:
25.03.2020 22:08:26


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
serverio.duckdns.org
A
90.40.209.206
Montreux-Jeune/Grand Est/France (FR) - Orange
Hostname: astrasbourg-651-1-174-206.w90-40.abo.wanadoo.fr
yes
1
0

AAAA

yes


www.serverio.duckdns.org
A
90.40.209.206
Montreux-Jeune/Grand Est/France (FR) - Orange
Hostname: astrasbourg-651-1-174-206.w90-40.abo.wanadoo.fr
yes
1
0

AAAA

yes



2. DNSSEC

Zone (*)DNSSEC - Informations (some minor bugs wildcard + nsec/nsec3)

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



Status: Valid because published



3 DNSKEY RR found



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



Public Key with Algorithm 8, KeyTag 33853, Flags 256



Public Key with Algorithm 8, KeyTag 48903, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.04.2020, 00:00:00 +, Signature-Inception: 21.03.2020, 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
2 DS RR in the parent zone found



1 RRSIG RR to validate DS RR found



RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 07.04.2020, 17:00:00 +, Signature-Inception: 25.03.2020, 16:00:00 +, KeyTag 33853, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 33853 used to validate the DS RRSet in the parent zone



4 DNSKEY RR found



Public Key with Algorithm 7, KeyTag 9795, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 7, KeyTag 17883, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 7, KeyTag 33209, Flags 256



Public Key with Algorithm 7, KeyTag 37022, Flags 256



3 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner org., Algorithm: 7, 1 Labels, original TTL: 900 sec, Signature-expiration: 15.04.2020, 15:28:56 +, Signature-Inception: 25.03.2020, 14:28:56 +, KeyTag 9795, Signer-Name: org



RRSIG-Owner org., Algorithm: 7, 1 Labels, original TTL: 900 sec, Signature-expiration: 15.04.2020, 15:28:56 +, Signature-Inception: 25.03.2020, 14:28:56 +, KeyTag 17883, Signer-Name: org



RRSIG-Owner org., Algorithm: 7, 1 Labels, original TTL: 900 sec, Signature-expiration: 15.04.2020, 15:28:56 +, Signature-Inception: 25.03.2020, 14:28:56 +, KeyTag 33209, Signer-Name: org



Status: Good - Algorithmus 7 and DNSKEY with KeyTag 9795 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 7 and DNSKEY with KeyTag 17883 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 7 and DNSKEY with KeyTag 33209 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 7, KeyTag 9795, DigestType 1 and Digest "Nk36s9ryVMq0d7VnWxB2bdqiSYI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Status: Valid Chain of trust. Parent-DS with Algorithm 7, KeyTag 9795, DigestType 2 and Digest "OSKzG286TqkrGet7UhIPAx/Y4F/wsDuvz5+JG/5/+OU=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: duckdns.org
duckdns.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 "mnorhcks4b6fjob5ap1mrs7utmhf26bm" between the hashed NSEC3-owner "mnoq314vn5m775pq7osblqq7jdr6o56r" and the hashed NextOwner "mnpis27oa7d3n2t47lo6516sp4um1am4". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner mnoq314vn5m775pq7osblqq7jdr6o56r.org., Algorithm: 7, 2 Labels, original TTL: 86400 sec, Signature-expiration: 15.04.2020, 15:28:56 +, Signature-Inception: 25.03.2020, 14:28:56 +, KeyTag 33209, Signer-Name: org



0 DNSKEY RR found




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



0 DNSKEY RR found




Zone: www.serverio.duckdns.org
www.serverio.duckdns.org
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.serverio.duckdns.org
U  ns1.duckdns.org


U  ns2.duckdns.org


U  ns3.duckdns.org

serverio.duckdns.org
U  ns1.duckdns.org
54.187.92.222
Portland/Oregon/United States (US) - Amazon.com, Inc.


U  ns2.duckdns.org
54.191.117.119
Portland/Oregon/United States (US) - Amazon.com, Inc.


U  ns3.duckdns.org
52.26.169.94
Portland/Oregon/United States (US) - Amazon.com, Inc.

duckdns.org
U  ns1.duckdns.org


U  ns2.duckdns.org


U  ns3.duckdns.org

org
  a0.org.afilias-nst.info / ns000b.app23.ams2.afilias-nst.info


  a2.org.afilias-nst.info / 3.fra.pch


  b0.org.afilias-nst.org / ns000b.app28.ams2.afilias-nst.info


  b2.org.afilias-nst.org / 5.fra.pch


  c0.org.afilias-nst.info / app5.iad1.hosts.meta.redstone.afilias-nst.info-2


  d0.org.afilias-nst.org / ns000b.app22.ams2.afilias-nst.info


4. SOA-Entries


Domain:org
Zone-Name:
Primary:a0.org.afilias-nst.info
Mail:noc.afilias-nst.info
Serial:2013869949
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:4


Domain:org
Zone-Name:
Primary:a0.org.afilias-nst.info
Mail:noc.afilias-nst.info
Serial:2013869950
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:2


Domain:duckdns.org
Zone-Name:
Primary:ns1.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:duckdns.org
Zone-Name:
Primary:ns2.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:duckdns.org
Zone-Name:
Primary:ns3.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:serverio.duckdns.org
Zone-Name:
Primary:ns1.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:serverio.duckdns.org
Zone-Name:
Primary:ns2.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:serverio.duckdns.org
Zone-Name:
Primary:ns3.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:www.serverio.duckdns.org
Zone-Name:
Primary:ns1.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:www.serverio.duckdns.org
Zone-Name:
Primary:ns2.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:www.serverio.duckdns.org
Zone-Name:
Primary:ns3.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


5. Screenshots

Startaddress: https://serverio.duckdns.org, address used: https://serverio.duckdns.org/auth/authorize?response_type=code&redirect_uri=https%3A%2F%2Fserverio.duckdns.org%2F%3Fauth_callback%3D1&client_id=https%3A%2F%2Fserverio.duckdns.org%2F&state=eyJoYXNzVXJsIjoiaHR0cHM6Ly9zZXJ2ZXJpby5kdWNrZG5zLm9yZyIsImNsaWVudElkIjoiaHR0cHM6Ly9zZXJ2ZXJpby5kdWNrZG5zLm9yZy8ifQ%3D%3D, Screenshot created 2020-03-25 22:11:59 +00:0

Mobil (412px x 732px)

789 milliseconds

Screenshot mobile - https://serverio.duckdns.org/auth/authorize?response_type=code&redirect_uri=https%3A%2F%2Fserverio.duckdns.org%2F%3Fauth_callback%3D1&client_id=https%3A%2F%2Fserverio.duckdns.org%2F&state=eyJoYXNzVXJsIjoiaHR0cHM6Ly9zZXJ2ZXJpby5kdWNrZG5zLm9yZyIsImNsaWVudElkIjoiaHR0cHM6Ly9zZXJ2ZXJpby5kdWNrZG5zLm9yZy8ifQ%3D%3D
Mobil + Landscape (732px x 412px)

2605 milliseconds

Screenshot mobile landscape - https://serverio.duckdns.org/auth/authorize?response_type=code&redirect_uri=https%3A%2F%2Fserverio.duckdns.org%2F%3Fauth_callback%3D1&client_id=https%3A%2F%2Fserverio.duckdns.org%2F&state=eyJoYXNzVXJsIjoiaHR0cHM6Ly9zZXJ2ZXJpby5kdWNrZG5zLm9yZyIsImNsaWVudElkIjoiaHR0cHM6Ly9zZXJ2ZXJpby5kdWNrZG5zLm9yZy8ifQ%3D%3D
Screen (1280px x 1680px)

6457 milliseconds

Screenshot Desktop - https://serverio.duckdns.org/auth/authorize?response_type=code&redirect_uri=https%3A%2F%2Fserverio.duckdns.org%2F%3Fauth_callback%3D1&client_id=https%3A%2F%2Fserverio.duckdns.org%2F&state=eyJoYXNzVXJsIjoiaHR0cHM6Ly9zZXJ2ZXJpby5kdWNrZG5zLm9yZyIsImNsaWVudElkIjoiaHR0cHM6Ly9zZXJ2ZXJpby5kdWNrZG5zLm9yZy8ifQ%3D%3D

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 1.3, P-384, and AES_256_GCM.

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

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://serverio.duckdns.org/
90.40.209.206
301
https://serverio.duckdns.org/
Html is minified: 109.46 %
0.127
A
Server: nginx
Date: Wed, 25 Mar 2020 21:10:53 GMT
Content-Type: text/html
Content-Length: 162
Connection: close
Location: https://serverio.duckdns.org/

• http://www.serverio.duckdns.org/
90.40.209.206 GZip used - 106 / 146 - 27.40 %
404

Html is minified: 110.61 %
0.116
M
Not Found
Server: nginx
Date: Wed, 25 Mar 2020 21:10:53 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
Content-Encoding: gzip

• https://serverio.duckdns.org/
90.40.209.206 GZip used - 1268 / 3086 - 58.91 %
Inline-JavaScript (∑/total): 2/1006 Inline-CSS (∑/total): 2/241
200

Html is minified: 176.54 %
4.007
A
small visible content (num chars: 17)
</home-assistant>
Server: nginx
Date: Wed, 25 Mar 2020 21:10:54 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Referrer-Policy: same-origin
Content-Security-Policy: default-src 'self' http: https: data: blob: 'unsafe-inline' wss://serverio.duckdns.org/ https://serverio.duckdns.org/
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Content-Encoding: gzip

• https://www.serverio.duckdns.org/
90.40.209.206 GZip used - 1268 / 3086 - 58.91 %
Inline-JavaScript (∑/total): 2/1006 Inline-CSS (∑/total): 2/241
200

Html is minified: 176.54 %
3.796
N
Certificate error: RemoteCertificateNameMismatch
small visible content (num chars: 17)
</home-assistant>
Server: nginx
Date: Wed, 25 Mar 2020 21:10:58 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Referrer-Policy: same-origin
Content-Security-Policy: default-src 'self' http: https: data: blob: 'unsafe-inline' wss://serverio.duckdns.org/ https://serverio.duckdns.org/
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Content-Encoding: gzip

• http://serverio.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
90.40.209.206
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://serverio.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 109.46 %
0.230
A
Visible Content: 301 Moved Permanently nginx
Server: nginx
Date: Wed, 25 Mar 2020 21:11:03 GMT
Content-Type: text/html
Content-Length: 162
Connection: close
Location: https://serverio.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• http://www.serverio.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
90.40.209.206 GZip used - 106 / 146 - 27.40 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 110.61 %
0.123
A
Not Found
Visible Content: 404 Not Found nginx
Server: nginx
Date: Wed, 25 Mar 2020 21:11:03 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Encoding
Content-Encoding: gzip

• https://serverio.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 100.00 %
3.796
A
Not Found
Visible Content: 404: Not Found
Server: nginx
Date: Wed, 25 Mar 2020 21:11:04 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 14
Connection: close
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Referrer-Policy: same-origin
Content-Security-Policy: default-src 'self' http: https: data: blob: 'unsafe-inline' wss://serverio.duckdns.org/ https://serverio.duckdns.org/
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload

7. Comments


1. General Results, most used to calculate the result

Aname "serverio.duckdns.org" is domain, public suffix is "duckdns.org", top-level-domain-type is "generic", tld-manager is "Public Interest Registry (PIR)"
Agood: All ip addresses are public addresses
Agood: destination is https
Agood: every https has a Strict Transport Security Header
Agood: HSTS max-age is long enough, 31536000 seconds = 365 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: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
Ahttp://serverio.duckdns.org/ 90.40.209.206
301
https://serverio.duckdns.org/
correct redirect http - https with the same domain name
CError - no preferred version www or non-www. Select one version as preferred version, then add a redirect https + not-preferred version to https + preferred version. Perhaps in your port 443 vHost something like "RewriteEngine on" + "RewriteCond %{SERVER_NAME} = example.com" + "ReWriteRule ^ https://www.example.com%{REQUEST_URI} [END,QSA,R=permanent]" (three rows, without the "). That should create a redirect https + example.com ⇒ https + www.example.com. Or switch both values to use the non-www version as your preferred version.
CError - more then one version with Http-Status 200. After all redirects, all users (and search engines) should see the same https url: Non-www or www, but not both with http status 200.
Mhttp://www.serverio.duckdns.org/ 90.40.209.206
404

Misconfiguration - main pages should never send http status 400 - 499
Nhttps://www.serverio.duckdns.org/ 90.40.209.206
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
XFatal error: Nameserver isn't defined or has timeout
XFatal error: Nameserver doesn't support TCP connection: ns1.duckdns.org: Fatal error - no NameServer IP-Address or connection. Details: One or more errors occurred. - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte 54.187.92.222:53
XFatal error: Nameserver doesn't support TCP connection: ns1.duckdns.org / 54.187.92.222: Fatal error - no NameServer IP-Address or connection. Details: One or more errors occurred. - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte 54.187.92.222:53
XFatal error: Nameserver doesn't support TCP connection: ns2.duckdns.org: Fatal error - no NameServer IP-Address or connection. Details: One or more errors occurred. - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte 54.191.117.119:53
XFatal error: Nameserver doesn't support TCP connection: ns2.duckdns.org / 54.191.117.119: Fatal error - no NameServer IP-Address or connection. Details: One or more errors occurred. - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte 54.191.117.119:53
XFatal error: Nameserver doesn't support TCP connection: ns3.duckdns.org: Fatal error - no NameServer IP-Address or connection. Details: One or more errors occurred. - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte 52.26.169.94:53
XFatal error: Nameserver doesn't support TCP connection: ns3.duckdns.org / 52.26.169.94: Fatal error - no NameServer IP-Address or connection. Details: One or more errors occurred. - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte 52.26.169.94:53

2. DNS- and NameServer - Checks

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.duckdns.org,ns2.duckdns.org,ns3.duckdns.org
AGood: Nameserver supports Echo Capitalization: 3 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 3 good Nameserver
Nameserver doesn't pass all EDNS-Checks: ns1.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns1.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns1.duckdns.org / 54.187.92.222: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.duckdns.org / 54.191.117.119: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.duckdns.org / 52.26.169.94: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. 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.

3. 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://serverio.duckdns.org/ 90.40.209.206
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://www.serverio.duckdns.org/ 90.40.209.206
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://serverio.duckdns.org/ 90.40.209.206
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://www.serverio.duckdns.org/ 90.40.209.206
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 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
https://serverio.duckdns.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
3.796 seconds
Warning: 404 needs more then one second
ADuration: 217883 milliseconds, 217.883 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
serverio.duckdns.org
90.40.209.206
443
ok
Tls12
ECDH Ephermal
384
Aes256
256
Sha384
supported
ok
serverio.duckdns.org
90.40.209.206
443
ok
Tls12

ECDH Ephermal
384
Aes256
256
Sha384
supported
ok
http/2 via ALPN supported 
Tls.1.2
no Tls.1.1
no Tls.1.0
http/2 via ALPN supported
Tls.1.2
no Tls.1.1
no Tls.1.0
Chain (complete)
1CN=serverio.duckdns.org

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


www.serverio.duckdns.org
90.40.209.206
443
name does not match
Tls12
ECDH Ephermal
384
Aes256
256
Sha384
supported
ok

www.serverio.duckdns.org
90.40.209.206
443
name does not match
Tls12

ECDH Ephermal
384
Aes256
256
Sha384
supported
ok
http/2 via ALPN supported 
Tls.1.2
no Tls.1.1
no Tls.1.0
http/2 via ALPN supported
Tls.1.2
no Tls.1.1
no Tls.1.0
Chain (complete)
1CN=serverio.duckdns.org

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


serverio.duckdns.org
serverio.duckdns.org
443
ok
Tls12
ECDH Ephermal
384
Aes256
256
Sha384
supported
ok

serverio.duckdns.org
serverio.duckdns.org
443
ok
Tls12

ECDH Ephermal
384
Aes256
256
Sha384
supported
ok
http/2 via ALPN supported 
Tls.1.2
no Tls.1.1
no Tls.1.0
http/2 via ALPN supported
Tls.1.2
no Tls.1.1
no Tls.1.0
Chain (complete)
1CN=serverio.duckdns.org

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


9. Certificates

1.
1.
CN=serverio.duckdns.org
24.03.2020
22.06.2020
14 days expired
serverio.duckdns.org - 1 entry
1.
1.
CN=serverio.duckdns.org
24.03.2020

22.06.2020
14 days expired
serverio.duckdns.org - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:043B12EC2788336CCF0609E518C5783FF913
Thumbprint:56B9AE20C77F4C242A92A1E07306B614416C1F80
SHA256 / Certificate:RylaepP4Pkxj+GvG9vFY/7OX8lC8rK38L/QmElJgkzY=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):e8efd92032e57184cc56877c5264fccf518c80403a23f4862c50886ad8a5ff29
SHA256 hex / Subject Public Key Information (SPKI):5689b5e72389b9228eb72243abf911601dbb75a056a225d5b3f333ae831cba70
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://ocsp.int-x3.letsencrypt.org
OCSP - must staple:no
Certificate Transparency:yes


2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016
17.03.2021
expires in 254 days


2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016

17.03.2021
expires in 254 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0A0141420000015385736A0B85ECA708
Thumbprint:E6A3B45B062D509B3382282D196EFE97D5956CCB
SHA256 / Certificate:JYR9Zo608E/dQLErawdAxWfafQJDCOtsLJb+QdneIY0=
SHA256 hex / Cert (DANE * 0 1):25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
SHA256 hex / PublicKey (DANE * 1 1):60b87575447dcba2a36b7d11ac09fb24a9db406fee12d2cc90180517616e8a18
SHA256 hex / Subject Public Key Information (SPKI):cbb93d32de628874a3ecfb92affadc97f1b795f84cc6f24221a089dee1aa25ad
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://isrg.trustid.ocsp.identrust.com
OCSP - must staple:no
Certificate Transparency:no


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
expires in 451 days


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

30.09.2021
expires in 451 days


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):29cc40db5e2de462a311cbbafaa1dc466960002335ecdf3317f2cd05c1d0bedf
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no



10. Last Certificates - Certificate Transparency Log Check

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

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0
0
5

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
1516076857
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-24 09:27:00
2020-06-22 09:27:00
serverio.duckdns.org - 1 entries


1503764472
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-18 13:32:00
2020-06-16 13:32:00
serverio.duckdns.org - 1 entries


1503588756
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-18 11:36:08
2020-06-16 11:36:08
serverio.duckdns.org - 1 entries


1407290699
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-03 09:14:13
2020-05-03 09:14:13
serverio.duckdns.org - 1 entries


1405681257
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-02 13:53:21
2020-05-02 13:53:21
serverio.duckdns.org - 1 entries



2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > 2019 are listed

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0 /0 new
0
6

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
2620334955
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-24 08:27:00
2020-06-22 07:27:00
serverio.duckdns.org
1 entries


2597368984
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-18 12:32:00
2020-06-16 11:32:00
serverio.duckdns.org
1 entries


2597139716
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-18 10:36:08
2020-06-16 09:36:08
serverio.duckdns.org
1 entries


2430017940
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-03 08:14:13
2020-05-03 07:14:13
serverio.duckdns.org
1 entries


2427978780
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-02 12:53:21
2020-05-02 11:53:21
serverio.duckdns.org
1 entries


2201486347
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-11-30 19:16:19
2020-02-28 19:16:19
serverio.duckdns.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://serverio.duckdns.org/
90.40.209.206
link
other
7
158,376 Bytes
0
6
0
0
0
0


meta
apple
2

0


0
0
0


meta
other
10
10,922 Bytes
0
4
0
0
0
0

https://www.serverio.duckdns.org/
90.40.209.206
link
other
7
158,376 Bytes
0
6
0
0
0
0


meta
apple
2

0


0
0
0


meta
other
10
10,922 Bytes
0
4
0
0
0
0

Details

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://serverio.duckdns.org/
90.40.209.206
link
apple-touch-icon
/static/icons/favicon-apple-180x180.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 4359 Bytes






link
icon
/static/icons/favicon.ico
200

1
ok
image/vnd.microsoft.icon

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 17957 Bytes






link
manifest
/manifest.json


1
ok








link
mask-icon
/static/icons/mask-icon.svg
200

1
ok
image/svg+xml

Cache-Control: public, max-age=2678400 with long duration found.
GZip: 697/1590 Bytes






link
preload
/frontend_latest/core.00c84305.js
200

1
ok
application/javascript; charset=utf-8

5944 Bytes






link
preload
/static/fonts/roboto/Roboto-Medium.woff2
200

1
ok
application/octet-stream

65484 Bytes






link
preload
/static/fonts/roboto/Roboto-Regular.woff2
200

1
ok
application/octet-stream

64632 Bytes






meta

utf-8


1
ok








meta
apple-itunes-app
app-id=1099568401


1
ok








meta
apple-mobile-web-app-capable
yes


1
ok








meta
mobile-web-app-capable
yes


1
ok








meta
msapplication-square150x150logo
/static/icons/tile-win-150x150.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 2139 Bytes






meta
msapplication-square310x310logo
/static/icons/tile-win-310x310.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 5312 Bytes






meta
msapplication-square70x70logo
/static/icons/tile-win-70x70.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 824 Bytes






meta
msapplication-TileColor
#03a9f4ff


1
ok








meta
msapplication-wide310x150logo
/static/icons/tile-win-310x150.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 2647 Bytes






meta
referrer
same-origin


1
ok








meta
theme-color
#03A9F4


1
ok








meta
viewport
width=device-width,user-scalable=no


1
ok







https://www.serverio.duckdns.org/
90.40.209.206
link
apple-touch-icon
/static/icons/favicon-apple-180x180.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 4359 Bytes






link
icon
/static/icons/favicon.ico
200

1
ok
image/vnd.microsoft.icon

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 17957 Bytes






link
manifest
/manifest.json


1
ok








link
mask-icon
/static/icons/mask-icon.svg
200

1
ok
image/svg+xml

Cache-Control: public, max-age=2678400 with long duration found.
GZip: 697/1590 Bytes






link
preload
/frontend_latest/core.00c84305.js
200

1
ok
application/javascript; charset=utf-8

5944 Bytes






link
preload
/static/fonts/roboto/Roboto-Medium.woff2
200

1
ok
application/octet-stream

65484 Bytes






link
preload
/static/fonts/roboto/Roboto-Regular.woff2
200

1
ok
application/octet-stream

64632 Bytes






meta

utf-8


1
ok








meta
apple-itunes-app
app-id=1099568401


1
ok








meta
apple-mobile-web-app-capable
yes


1
ok








meta
mobile-web-app-capable
yes


1
ok








meta
msapplication-square150x150logo
/static/icons/tile-win-150x150.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 2139 Bytes






meta
msapplication-square310x310logo
/static/icons/tile-win-310x310.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 5312 Bytes






meta
msapplication-square70x70logo
/static/icons/tile-win-70x70.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 824 Bytes






meta
msapplication-TileColor
#03a9f4ff


1
ok








meta
msapplication-wide310x150logo
/static/icons/tile-win-310x150.png
200

1
ok
image/png

Cache-Control: public, max-age=2678400 with long duration found.
No GZip - 2647 Bytes






meta
referrer
same-origin


1
ok








meta
theme-color
#03A9F4


1
ok








meta
viewport
width=device-width,user-scalable=no


1
ok








12. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers:

No NameServer - IP address informations found. The feature is new (2020-05-07), so recheck this domain.


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.serverio.duckdns.org



1
0
serverio.duckdns.org



1
0
duckdns.org
0

no CAA entry found
1
0
org
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
serverio.duckdns.org

ok
1
0
www.serverio.duckdns.org

ok
1
0
_acme-challenge.serverio.duckdns.org

missing entry or wrong length
1
0
_acme-challenge.www.serverio.duckdns.org

missing entry or wrong length
1
0
_acme-challenge.serverio.duckdns.org.serverio.duckdns.org

perhaps wrong
1
0
_acme-challenge.www.serverio.duckdns.org.serverio.duckdns.org

perhaps wrong
1
0
_acme-challenge.www.serverio.duckdns.org.www.serverio.duckdns.org

perhaps wrong
1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=a538a483-3ae1-4f26-9e05-a128bebccc16


Last Result: https://check-your-website.server-daten.de/?q=serverio.duckdns.org - 2020-03-25 22:08:26


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