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



T

Timeout

Checked:
23.09.2022 05:04:48


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
jliu.me
A
150.136.155.73
Ashburn/Virginia/United States (US) - Oracle Corporation
No Hostname found
yes
1
0

AAAA

yes


www.jliu.me
A
150.136.155.73
Ashburn/Virginia/United States (US) - Oracle Corporation
No Hostname found
yes
1
0

AAAA

yes


*.jliu.me
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



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 18733, Flags 256



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



Public Key with Algorithm 8, KeyTag 20826, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 10.10.2022, 00:00:00 +, Signature-Inception: 19.09.2022, 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: me
me
1 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 45352, DigestType 2 and Digest dwjIptXXK2MhS7/1DLVFU/fgeh+l6QdL2NY8QxAthVk=



1 RRSIG RR to validate DS RR found



RRSIG-Owner me., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 05.10.2022, 16:00:00 +, Signature-Inception: 22.09.2022, 15:00:00 +, KeyTag 20826, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20826 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 38334, Flags 256



Public Key with Algorithm 8, KeyTag 45352, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 56094, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner me., Algorithm: 8, 1 Labels, original TTL: 900 sec, Signature-expiration: 08.10.2022, 15:18:33 +, Signature-Inception: 17.09.2022, 14:18:33 +, KeyTag 45352, Signer-Name: me



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 45352 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 45352, DigestType 2 and Digest "dwjIptXXK2MhS7/1DLVFU/fgeh+l6QdL2NY8QxAthVk=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: jliu.me
jliu.me
1 DS RR in the parent zone found



DS with Algorithm 13, KeyTag 50519, DigestType 1 and Digest WWxMCKCpt2+IE1ImEIz4gHpL6FM=



1 RRSIG RR to validate DS RR found



RRSIG-Owner jliu.me., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 14.10.2022, 02:16:45 +, Signature-Inception: 23.09.2022, 01:16:45 +, KeyTag 56094, Signer-Name: me



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 56094 used to validate the DS RRSet in the parent zone



2 DNSKEY RR found



Public Key with Algorithm 13, KeyTag 20184, Flags 256



Public Key with Algorithm 13, KeyTag 50519, Flags 257 (SEP = Secure Entry Point)



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner jliu.me., Algorithm: 13, 2 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 50519, Signer-Name: jliu.me



Status: Good - Algorithmus 13 and DNSKEY with KeyTag 50519 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 50519, DigestType 1 and Digest "WWxMCKCpt2+IE1ImEIz4gHpL6FM=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



RRSIG Type 1 validates the A - Result: 150.136.155.73
Validated: RRSIG-Owner jliu.me., Algorithm: 13, 2 Labels, original TTL: 1799 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



RRSIG Type 16 validates the TXT - Result: v=spf1 include:spf.efwd.registrar-servers.com ~all
Validated: RRSIG-Owner jliu.me., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



CNAME-Query sends a valid NSEC RR as result with the query name "jliu.me" equal the NSEC-owner "jliu.me" and the NextOwner "www.jliu.me". So the zone confirmes the not-existence of that CNAME RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, NS, SOA, MX, TXT, RRSIG, NSEC, DNSKEY Validated: RRSIG-Owner jliu.me., Algorithm: 13, 2 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NoData-Proof required and found.



AAAA-Query sends a valid NSEC RR as result with the query name "jliu.me" equal the NSEC-owner "jliu.me" and the NextOwner "www.jliu.me". So the zone confirmes the not-existence of that AAAA RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, NS, SOA, MX, TXT, RRSIG, NSEC, DNSKEY Validated: RRSIG-Owner jliu.me., Algorithm: 13, 2 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NoData-Proof required and found.



TLSA-Query (_443._tcp.jliu.me) sends a valid NSEC RR as result with the owner name jliu.me. So that's the Closest Encloser of the query name. TLSA-Query sends a valid NSEC RR as result and covers the Wildcard expansion of the ClosestEncloser with the owner "jliu.me" and the NextOwner "www.jliu.me". So that NSEC confirms the not-existence of the Wildcard expansion. TLSA-Query (_443._tcp.jliu.me) sends a valid NSEC RR as result with the query name "_443._tcp.jliu.me" between the NSEC-owner "jliu.me" and the NextOwner "www.jliu.me". So the zone confirmes the not-existence of that TLSA RR.TLSA-Query (_443._tcp.jliu.me) sends a valid NSEC RR as result with the parent Wildcard "*._tcp.jliu.me" between the NSEC-owner "jliu.me" and the NextOwner "www.jliu.me". So the zone confirmes the not-existence of that Wildcard-expansion.
Bitmap: A, NS, SOA, MX, TXT, RRSIG, NSEC, DNSKEY Validated: RRSIG-Owner jliu.me., Algorithm: 13, 2 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NXDomain-Proof required and found.



CAA-Query sends a valid NSEC RR as result with the query name "jliu.me" equal the NSEC-owner "jliu.me" and the NextOwner "www.jliu.me". So the zone confirmes the not-existence of that CAA RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, NS, SOA, MX, TXT, RRSIG, NSEC, DNSKEY Validated: RRSIG-Owner jliu.me., Algorithm: 13, 2 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NoData-Proof required and found.

Zone: www.jliu.me
www.jliu.me
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC RR as result with the domain name between the NSEC-Owner "www.jliu.me" and the NextOwner "jliu.me". So the parent zone confirmes the non-existence of a DS RR.
Bitmap: A, RRSIG, NSEC



RRSIG Type 1 validates the A - Result: 150.136.155.73
Validated: RRSIG-Owner www.jliu.me., Algorithm: 13, 3 Labels, original TTL: 1799 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



CNAME-Query sends a valid NSEC RR as result with the query name "www.jliu.me" equal the NSEC-owner "www.jliu.me" and the NextOwner "jliu.me". So the zone confirmes the not-existence of that CNAME RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, RRSIG, NSEC Validated: RRSIG-Owner www.jliu.me., Algorithm: 13, 3 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NoData-Proof required and found.



TXT-Query sends a valid NSEC RR as result with the query name "www.jliu.me" equal the NSEC-owner "www.jliu.me" and the NextOwner "jliu.me". So the zone confirmes the not-existence of that TXT RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, RRSIG, NSEC Validated: RRSIG-Owner www.jliu.me., Algorithm: 13, 3 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NoData-Proof required and found.



AAAA-Query sends a valid NSEC RR as result with the query name "www.jliu.me" equal the NSEC-owner "www.jliu.me" and the NextOwner "jliu.me". So the zone confirmes the not-existence of that AAAA RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, RRSIG, NSEC Validated: RRSIG-Owner www.jliu.me., Algorithm: 13, 3 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NoData-Proof required and found.



TLSA-Query (_443._tcp.www.jliu.me) sends a valid NSEC RR as result with the owner name www.jliu.me. So that's the Closest Encloser of the query name. TLSA-Query sends a valid NSEC RR as result and covers the Wildcard expansion of the ClosestEncloser with the owner "www.jliu.me" and the NextOwner "jliu.me". So that NSEC confirms the not-existence of the Wildcard expansion. TLSA-Query (_443._tcp.www.jliu.me) sends a valid NSEC RR as result with the query name "_443._tcp.www.jliu.me" between the NSEC-owner "www.jliu.me" and the NextOwner "jliu.me". So the zone confirmes the not-existence of that TLSA RR.TLSA-Query (_443._tcp.www.jliu.me) sends a valid NSEC RR as result with the parent Wildcard "*._tcp.www.jliu.me" between the NSEC-owner "www.jliu.me" and the NextOwner "jliu.me". So the zone confirmes the not-existence of that Wildcard-expansion.
Bitmap: A, RRSIG, NSEC Validated: RRSIG-Owner www.jliu.me., Algorithm: 13, 3 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NXDomain-Proof required and found.



CAA-Query sends a valid NSEC RR as result with the query name "www.jliu.me" equal the NSEC-owner "www.jliu.me" and the NextOwner "jliu.me". So the zone confirmes the not-existence of that CAA RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, RRSIG, NSEC Validated: RRSIG-Owner www.jliu.me., Algorithm: 13, 3 Labels, original TTL: 3601 sec, Signature-expiration: 06.10.2022, 00:00:00 +, Signature-Inception: 15.09.2022, 00:00:00 +, KeyTag 20184, Signer-Name: jliu.me



Status: Good. NoData-Proof required and found.


3. Name Servers

DomainNameserverNS-IP
www.jliu.me
  dns1.registrar-servers.com / Auth_NC_Host1.Paris_Node1

jliu.me
  dns1.registrar-servers.com / Auth_NC_Host1.Paris_Node1
156.154.132.200
Sterling/Virginia/United States (US) - NeuStar, Inc.


 
2610:a1:1024::200
Sterling/Virginia/United States (US) - NeuStar


  dns2.registrar-servers.com / Auth_NC_Host1.Frankfurt_Node1
156.154.133.200
Sterling/Virginia/United States (US) - NeuStar, Inc.


 
2610:a1:1025::200
Sterling/Virginia/United States (US) - NeuStar

me
  a0.nic.me / app11.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861


  a2.nic.me / FRA4


  b0.nic.me / app4.lax1.hosts.meta.redstone.afilias-nst.info-1633102198


  b2.nic.me / FRA4


  c0.nic.me / app21.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861


  ns.nic.me


4. SOA-Entries


Domain:me
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:me
Zone-Name:me
Primary:ns.nic.me
Mail:noc.afilias-nst.info
Serial:2011309730
Refresh:3600
Retry:3600
Expire:3600000
TTL:8400
num Entries:2


Domain:me
Zone-Name:me
Primary:ns.nic.me
Mail:noc.afilias-nst.info
Serial:2011309731
Refresh:3600
Retry:3600
Expire:3600000
TTL:8400
num Entries:3


Domain:jliu.me
Zone-Name:jliu.me
Primary:dns1.registrar-servers.com
Mail:hostmaster.registrar-servers.com
Serial:1663901234
Refresh:43200
Retry:3600
Expire:604800
TTL:3601
num Entries:4


Domain:www.jliu.me
Zone-Name:jliu.me
Primary:dns1.registrar-servers.com
Mail:hostmaster.registrar-servers.com
Serial:1663901234
Refresh:43200
Retry:3600
Expire:604800
TTL:3601
num Entries:1


5. Screenshots

No Screenshot listed, because no url-check with https + http status 200-299, 400-599 + not-ACME-check found.

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://jliu.me/
150.136.155.73
301
https://jliu.me/
Html is minified: 108.54 %
0.220
A
Server: nginx/1.18.0 (Ubuntu)
Date: Fri, 23 Sep 2022 03:05:45 GMT
Content-Type: text/html
Content-Length: 178
Connection: close
Location: https://jliu.me/

• http://www.jliu.me/
150.136.155.73
301
https://www.jliu.me/
Html is minified: 108.54 %
0.217
A
Server: nginx/1.18.0 (Ubuntu)
Date: Fri, 23 Sep 2022 03:05:45 GMT
Content-Type: text/html
Content-Length: 178
Connection: close
Location: https://www.jliu.me/

• https://jliu.me/
150.136.155.73
-14

10.040
T
Timeout - The operation has timed out

• https://www.jliu.me/
150.136.155.73
-14

10.034
T
Timeout - The operation has timed out

• http://jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
150.136.155.73
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 108.54 %
0.217
A
Visible Content: 301 Moved Permanently nginx/1.18.0 (Ubuntu)
Server: nginx/1.18.0 (Ubuntu)
Date: Fri, 23 Sep 2022 03:06:05 GMT
Content-Type: text/html
Content-Length: 178
Connection: close
Location: https://jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• http://www.jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
150.136.155.73
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://www.jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 108.54 %
0.210
A
Visible Content: 301 Moved Permanently nginx/1.18.0 (Ubuntu)
Server: nginx/1.18.0 (Ubuntu)
Date: Fri, 23 Sep 2022 03:06:05 GMT
Content-Type: text/html
Content-Length: 178
Connection: close
Location: https://www.jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• https://jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

-14

10.030
T
Timeout - The operation has timed out
Visible Content:

• https://www.jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

-14

10.040
T
Timeout - The operation has timed out
Visible Content:

• https://150.136.155.73/
150.136.155.73
-14

10.030
T
Timeout - The operation has timed out

7. Comments


1. General Results, most used to calculate the result

Aname "jliu.me" is domain, public suffix is ".me", top-level-domain is ".me", top-level-domain-type is "country-code", Country is Montenegro, tld-manager is "Government of Montenegro", num .me-domains preloaded: 1848 (complete: 199710)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: jliu.me has only one ip address.
Warning: Only one ip address found: www.jliu.me 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: jliu.me has no ipv6 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: www.jliu.me has no ipv6 address.
AGood: No asked Authoritative Name Server had a timeout
AGood: No cookie sent via http.
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
CError - no version with Http-Status 200
HFatal error: No https - result with http-status 200, no encryption
Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain jliu.me, 1 ip addresses.
Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain www.jliu.me, 1 ip addresses.

2. DNS- and NameServer - Checks

AInfo:: 22 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
AInfo:: 22 Queries complete, 22 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
Bad (greater 8):: An average of 11.0 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 2 different Name Servers found: dns1.registrar-servers.com, dns2.registrar-servers.com, 2 Name Servers included in Delegation: dns1.registrar-servers.com, dns2.registrar-servers.com, 2 Name Servers included in 1 Zone definitions: dns1.registrar-servers.com, dns2.registrar-servers.com, 1 Name Servers listed in SOA.Primary: dns1.registrar-servers.com.
AGood: Only one SOA.Primary Name Server found.: dns1.registrar-servers.com.
AGood: SOA.Primary Name Server included in the delegation set.: dns1.registrar-servers.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: dns1.registrar-servers.com, dns2.registrar-servers.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
AGood: All name servers have ipv4- and ipv6-addresses.: 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: registrar-servers.com
Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: US
AInfo: Ipv4-Subnet-list: 2 Name Servers, 1 different subnets (first Byte): 156., 1 different subnets (first two Bytes): 156.154., 2 different subnets (first three Bytes): 156.154.132., 156.154.133.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 2 Name Servers with IPv6, 1 different subnets (first block): 2610:, 1 different subnets (first two blocks): 2610:00a1:, 2 different subnets (first three blocks): 2610:00a1:1024:, 2610:00a1:1025:, 2 different subnets (first four blocks): 2610:00a1:1024:0000:, 2610:00a1:1025:0000:
AGood: Name Server IPv6 addresses from different subnets found.
AGood: Nameserver supports TCP connections: 4 good Nameserver
AGood: Nameserver supports Echo Capitalization: 4 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 4 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 4 good Nameserver
Nameserver doesn't pass all EDNS-Checks: ns.nic.me: 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.

3. Content- and Performance-critical Checks

https://jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
-14

Fatal: Check of /.well-known/acme-challenge/random-filename has a timeout. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
https://www.jliu.me/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
-14

Fatal: Check of /.well-known/acme-challenge/random-filename has a timeout. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
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: 465310 milliseconds, 465.310 seconds


8. Connections

No connection informations found. Perhaps only http - connections.


9. Certificates

No certificate informations found. Perhaps only http - connections.


10. Last Certificates - Certificate Transparency Log Check

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

No CertSpotter - CT-Log entries found


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

No CRT - CT-Log entries found


11. Html-Content - Entries

No Html-Content entries found. Only checked if https + status 200/401/403/404


12. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: dns1.registrar-servers.com, dns2.registrar-servers.com

QNr.DomainTypeNS used
1
com
NS
a.root-servers.net (2001:503:ba3e::2:30)

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
dns1.registrar-servers.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: edns1.registrar-servers.com, edns2.registrar-servers.com, edns4.ultradns.com, edns4.ultradns.net, edns4.ultradns.org

Answer: edns1.registrar-servers.com
2001:41d0:800:2d2c::2, 51.89.217.44

Answer: edns2.registrar-servers.com
2607:5300:203:7f53::2, 51.222.46.83

Answer: edns4.ultradns.com
2001:502:f3ff::204, 204.74.66.4
3
dns2.registrar-servers.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: edns1.registrar-servers.com, edns2.registrar-servers.com, edns4.ultradns.com, edns4.ultradns.net, edns4.ultradns.org

Answer: edns1.registrar-servers.com
2001:41d0:800:2d2c::2, 51.89.217.44

Answer: edns2.registrar-servers.com
2607:5300:203:7f53::2, 51.222.46.83

Answer: edns4.ultradns.com
2001:502:f3ff::204, 204.74.66.4
4
net
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
5
edns4.ultradns.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: pdns196.ultradns.biz, pdns196.ultradns.co.uk, pdns196.ultradns.com, pdns196.ultradns.info, pdns196.ultradns.net, pdns196.ultradns.org

Answer: pdns196.ultradns.net
156.154.65.196, 2610:a1:1014::e8
6
org
NS
e.root-servers.net (2001:500:a8::e)

Answer: a0.org.afilias-nst.info, a2.org.afilias-nst.info, b0.org.afilias-nst.org, b2.org.afilias-nst.org, c0.org.afilias-nst.info, d0.org.afilias-nst.org
7
edns4.ultradns.org
NS
a2.org.afilias-nst.info (2001:500:40::1)

Answer: pdns196.ultradns.biz, pdns196.ultradns.co.uk, pdns196.ultradns.com, pdns196.ultradns.info, pdns196.ultradns.net, pdns196.ultradns.org

Answer: pdns196.ultradns.org
156.154.67.196, 2001:502:4612::e8
8
biz
NS
k.root-servers.net (2001:7fd::1)

Answer: a.gtld.biz, b.gtld.biz, c.gtld.biz, w.gtld.biz, x.gtld.biz, y.gtld.biz
9
pdns196.ultradns.biz: 156.154.66.196, 2610:a1:1015::e8
NS
a.gtld.biz (2001:502:ad09::30)
10
uk
NS
k.root-servers.net (2001:7fd::1)

Answer: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk
11
pdns196.ultradns.co.uk: 156.154.69.196, 2610:a1:1017::e8
NS
dns1.nic.uk (2a01:618:400::1)
12
pdns196.ultradns.com: 156.154.64.196, 2001:502:f3ff::e8
NS
a.gtld-servers.net (2001:503:a83e::2:30)
13
info
NS
a.root-servers.net (2001:503:ba3e::2:30)

Answer: a0.info.afilias-nst.info, a2.info.afilias-nst.info, b0.info.afilias-nst.org, b2.info.afilias-nst.org, c0.info.afilias-nst.info, d0.info.afilias-nst.org
14
pdns196.ultradns.info: 156.154.68.196, 2610:a1:1016::e8
NS
a2.info.afilias-nst.info (2001:500:41::1)
15
edns4.ultradns.net: 204.74.110.4
A
pdns196.ultradns.biz (2610:a1:1015::e8)
16
edns4.ultradns.net: 2610:a1:1014::204
AAAA
pdns196.ultradns.biz (2610:a1:1015::e8)
17
edns4.ultradns.org: 204.74.111.4
A
pdns196.ultradns.biz (2610:a1:1015::e8)
18
edns4.ultradns.org: 2001:502:4612::204
AAAA
pdns196.ultradns.biz (2610:a1:1015::e8)
19
dns1.registrar-servers.com: 156.154.132.200
A
edns1.registrar-servers.com (2001:41d0:800:2d2c::2)
20
dns1.registrar-servers.com: 2610:a1:1024::200
AAAA
edns1.registrar-servers.com (2001:41d0:800:2d2c::2)
21
dns2.registrar-servers.com: 156.154.133.200
A
edns1.registrar-servers.com (2001:41d0:800:2d2c::2)
22
dns2.registrar-servers.com: 2610:a1:1025::200
AAAA
edns1.registrar-servers.com (2001:41d0:800:2d2c::2)


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.jliu.me
0

no CAA entry found
1
0
jliu.me
0

no CAA entry found
1
0
me
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
jliu.me
v=spf1 include:spf.efwd.registrar-servers.com ~all
ok
1
0
www.jliu.me

ok
1
0
_acme-challenge.jliu.me

Name Error - The domain name does not exist
1
0
_acme-challenge.www.jliu.me

Name Error - The domain name does not exist
1
0
_acme-challenge.jliu.me.jliu.me

Name Error - The domain name does not exist
1
0
_acme-challenge.www.jliu.me.jliu.me

Name Error - The domain name does not exist
1
0
_acme-challenge.www.jliu.me.www.jliu.me

Name Error - The domain name does not exist
1
0


15. DomainService - Entries (SSHFP Check is new - 2022-09-24, may be incomplete, alpha, some results are required)

TypeDomainPrefValueDNS-errornum AnswersStatusDescription
MX

jliu.me
10
eforward1.registrar-servers.com
0
5
ok


A


162.255.118.51
0
1
ok


CNAME



0
0
ok

MX

jliu.me
10
eforward2.registrar-servers.com
0
5
ok


A


162.255.118.52
0
1
ok


CNAME



0
0
ok

MX

jliu.me
10
eforward3.registrar-servers.com
0
5
ok


A


162.255.118.51
0
1
ok


CNAME



0
0
ok

MX

jliu.me
15
eforward4.registrar-servers.com
0
5
ok


A


162.255.118.52
0
1
ok


CNAME



0
0
ok

MX

jliu.me
20
eforward5.registrar-servers.com
0
5
ok


A


162.255.118.51
0
1
ok


CNAME



0
0
ok



16. Cipher Suites

No results


17. Portchecks

DomainIPPortDescriptionResultAnswer
jliu.me
150.136.155.73
21
FTP



jliu.me
150.136.155.73
21
FTP



jliu.me
150.136.155.73
22
SSH
open
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3

jliu.me
150.136.155.73
22
SSH
open
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3

jliu.me
150.136.155.73
25
SMTP



jliu.me
150.136.155.73
25
SMTP



jliu.me
150.136.155.73
53
DNS



jliu.me
150.136.155.73
53
DNS



jliu.me
150.136.155.73
110
POP3



jliu.me
150.136.155.73
110
POP3



jliu.me
150.136.155.73
143
IMAP



jliu.me
150.136.155.73
143
IMAP



jliu.me
150.136.155.73
465
SMTP (encrypted)



jliu.me
150.136.155.73
465
SMTP (encrypted)



jliu.me
150.136.155.73
587
SMTP (encrypted, submission)



jliu.me
150.136.155.73
587
SMTP (encrypted, submission)



jliu.me
150.136.155.73
993
IMAP (encrypted)



jliu.me
150.136.155.73
993
IMAP (encrypted)



jliu.me
150.136.155.73
995
POP3 (encrypted)



jliu.me
150.136.155.73
995
POP3 (encrypted)



jliu.me
150.136.155.73
1433
MS SQL



jliu.me
150.136.155.73
1433
MS SQL



jliu.me
150.136.155.73
2082
cPanel (http)



jliu.me
150.136.155.73
2082
cPanel (http)



jliu.me
150.136.155.73
2083
cPanel (https)



jliu.me
150.136.155.73
2083
cPanel (https)



jliu.me
150.136.155.73
2086
WHM (http)



jliu.me
150.136.155.73
2086
WHM (http)



jliu.me
150.136.155.73
2087
WHM (https)



jliu.me
150.136.155.73
2087
WHM (https)



jliu.me
150.136.155.73
2089
cPanel Licensing



jliu.me
150.136.155.73
2089
cPanel Licensing



jliu.me
150.136.155.73
2095
cPanel Webmail (http)



jliu.me
150.136.155.73
2095
cPanel Webmail (http)



jliu.me
150.136.155.73
2096
cPanel Webmail (https)



jliu.me
150.136.155.73
2096
cPanel Webmail (https)



jliu.me
150.136.155.73
2222
DirectAdmin (http)



jliu.me
150.136.155.73
2222
DirectAdmin (http)



jliu.me
150.136.155.73
2222
DirectAdmin (https)



jliu.me
150.136.155.73
2222
DirectAdmin (https)



jliu.me
150.136.155.73
3306
mySql



jliu.me
150.136.155.73
3306
mySql



jliu.me
150.136.155.73
5224
Plesk Licensing



jliu.me
150.136.155.73
5224
Plesk Licensing



jliu.me
150.136.155.73
5432
PostgreSQL



jliu.me
150.136.155.73
5432
PostgreSQL



jliu.me
150.136.155.73
8080
Ookla Speedtest (http)



jliu.me
150.136.155.73
8080
Ookla Speedtest (http)



jliu.me
150.136.155.73
8080
Ookla Speedtest (https)



jliu.me
150.136.155.73
8080
Ookla Speedtest (https)



jliu.me
150.136.155.73
8083
VestaCP http



jliu.me
150.136.155.73
8083
VestaCP http



jliu.me
150.136.155.73
8083
VestaCP https



jliu.me
150.136.155.73
8083
VestaCP https



jliu.me
150.136.155.73
8443
Plesk Administration (https)



jliu.me
150.136.155.73
8443
Plesk Administration (https)



jliu.me
150.136.155.73
8447
Plesk Installer + Updates



jliu.me
150.136.155.73
8447
Plesk Installer + Updates



jliu.me
150.136.155.73
8880
Plesk Administration (http)



jliu.me
150.136.155.73
8880
Plesk Administration (http)



jliu.me
150.136.155.73
10000
Webmin (http)



jliu.me
150.136.155.73
10000
Webmin (http)



jliu.me
150.136.155.73
10000
Webmin (https)



jliu.me
150.136.155.73
10000
Webmin (https)



www.jliu.me
150.136.155.73
21
FTP



www.jliu.me
150.136.155.73
21
FTP



www.jliu.me
150.136.155.73
22
SSH
open
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3

www.jliu.me
150.136.155.73
22
SSH
open
SSH-2.0-OpenSSH_8.9p1 Ubuntu-3

www.jliu.me
150.136.155.73
25
SMTP



www.jliu.me
150.136.155.73
25
SMTP



www.jliu.me
150.136.155.73
53
DNS



www.jliu.me
150.136.155.73
53
DNS



www.jliu.me
150.136.155.73
110
POP3



www.jliu.me
150.136.155.73
110
POP3



www.jliu.me
150.136.155.73
143
IMAP



www.jliu.me
150.136.155.73
143
IMAP



www.jliu.me
150.136.155.73
465
SMTP (encrypted)



www.jliu.me
150.136.155.73
465
SMTP (encrypted)



www.jliu.me
150.136.155.73
587
SMTP (encrypted, submission)



www.jliu.me
150.136.155.73
587
SMTP (encrypted, submission)



www.jliu.me
150.136.155.73
993
IMAP (encrypted)



www.jliu.me
150.136.155.73
993
IMAP (encrypted)



www.jliu.me
150.136.155.73
995
POP3 (encrypted)



www.jliu.me
150.136.155.73
995
POP3 (encrypted)



www.jliu.me
150.136.155.73
1433
MS SQL



www.jliu.me
150.136.155.73
1433
MS SQL



www.jliu.me
150.136.155.73
2082
cPanel (http)



www.jliu.me
150.136.155.73
2082
cPanel (http)



www.jliu.me
150.136.155.73
2083
cPanel (https)



www.jliu.me
150.136.155.73
2083
cPanel (https)



www.jliu.me
150.136.155.73
2086
WHM (http)



www.jliu.me
150.136.155.73
2086
WHM (http)



www.jliu.me
150.136.155.73
2087
WHM (https)



www.jliu.me
150.136.155.73
2087
WHM (https)



www.jliu.me
150.136.155.73
2089
cPanel Licensing



www.jliu.me
150.136.155.73
2089
cPanel Licensing



www.jliu.me
150.136.155.73
2095
cPanel Webmail (http)



www.jliu.me
150.136.155.73
2095
cPanel Webmail (http)



www.jliu.me
150.136.155.73
2096
cPanel Webmail (https)



www.jliu.me
150.136.155.73
2096
cPanel Webmail (https)



www.jliu.me
150.136.155.73
2222
DirectAdmin (http)



www.jliu.me
150.136.155.73
2222
DirectAdmin (http)



www.jliu.me
150.136.155.73
2222
DirectAdmin (https)



www.jliu.me
150.136.155.73
2222
DirectAdmin (https)



www.jliu.me
150.136.155.73
3306
mySql



www.jliu.me
150.136.155.73
3306
mySql



www.jliu.me
150.136.155.73
5224
Plesk Licensing



www.jliu.me
150.136.155.73
5224
Plesk Licensing



www.jliu.me
150.136.155.73
5432
PostgreSQL



www.jliu.me
150.136.155.73
5432
PostgreSQL



www.jliu.me
150.136.155.73
8080
Ookla Speedtest (http)



www.jliu.me
150.136.155.73
8080
Ookla Speedtest (http)



www.jliu.me
150.136.155.73
8080
Ookla Speedtest (https)



www.jliu.me
150.136.155.73
8080
Ookla Speedtest (https)



www.jliu.me
150.136.155.73
8083
VestaCP http



www.jliu.me
150.136.155.73
8083
VestaCP http



www.jliu.me
150.136.155.73
8083
VestaCP https



www.jliu.me
150.136.155.73
8083
VestaCP https



www.jliu.me
150.136.155.73
8443
Plesk Administration (https)



www.jliu.me
150.136.155.73
8443
Plesk Administration (https)



www.jliu.me
150.136.155.73
8447
Plesk Installer + Updates



www.jliu.me
150.136.155.73
8447
Plesk Installer + Updates



www.jliu.me
150.136.155.73
8880
Plesk Administration (http)



www.jliu.me
150.136.155.73
8880
Plesk Administration (http)



www.jliu.me
150.136.155.73
10000
Webmin (http)



www.jliu.me
150.136.155.73
10000
Webmin (http)



www.jliu.me
150.136.155.73
10000
Webmin (https)



www.jliu.me
150.136.155.73
10000
Webmin (https)





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