Let's Debug

Test result for da.wikihoster.de using http-01

da.wikihoster.de has an AAAA (IPv6) record (2001:67c:1400:2180::1) but a test request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address. You should either ensure that validation requests to this domain succeed over IPv6, or remove its AAAA record.
A timeout was experienced while communicating with da.wikihoster.de/2001:67c:1400:2180::1: Get "http://da.wikihoster.de/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://da.wikihoster.de/.well-known/acme-challenge/letsdebug-test (using initial IP 2001:67c:1400:2180::1)
@0ms: Dialing 2001:67c:1400:2180::1
@10000ms: Experienced error: context deadline exceeded
A test authorization for da.wikihoster.de to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
217.197.83.171: Fetching https://da.wikihoster.de/.well-known/acme-challenge/82KB4ty4MpuLgNq1lD72JQyHi3j3kMKzPUp5QmONL1Y: Timeout during connect (likely firewall problem)
Debug
Requests made to the domain
Request to: da.wikihoster.de/2001:67c:1400:2180::1, Result: [Address=2001:67c:1400:2180::1,Address Type=IPv6,Server=,HTTP Status=0], Issue: AAAANotWorking
Trace:
@0ms: Making a request to http://da.wikihoster.de/.well-known/acme-challenge/letsdebug-test (using initial IP 2001:67c:1400:2180::1)
@0ms: Dialing 2001:67c:1400:2180::1
@10000ms: Experienced error: context deadline exceeded

Request to: da.wikihoster.de/217.197.83.171, Result: [Address=217.197.83.171,Address Type=IPv4,Server=Apache,HTTP Status=301,Number of Redirects=3,Final HTTP Status=200], Issue:
Trace:
@0ms: Making a request to http://da.wikihoster.de/.well-known/acme-challenge/letsdebug-test (using initial IP 217.197.83.171)
@0ms: Dialing 217.197.83.171
@189ms: Server response: HTTP 301 Moved Permanently
@189ms: Received redirect to https://da.wikihoster.de/.well-known/acme-challenge/letsdebug-test
@189ms: Dialing 217.197.83.171
@477ms: Server response: HTTP 302 Found
@477ms: Received redirect to https://da.wikihoster.de/
@478ms: Dialing 217.197.83.171
@851ms: Server response: HTTP 301 Moved Permanently
@851ms: Received redirect to https://da.wikihoster.de/wiki/Main_Page
@853ms: Dialing 217.197.83.171
@1296ms: Server response: HTTP 200 OK

Debug
A and AAAA records found for this domain
da.wikihoster.de. 0 IN A 217.197.83.171
da.wikihoster.de. 0 IN AAAA 2001:67c:1400:2180::1
Challenge update failures for da.wikihoster.de in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/3169354114
acme: error code 400 "urn:ietf:params:acme:error:connection": 217.197.83.171: Fetching https://da.wikihoster.de/.well-known/acme-challenge/82KB4ty4MpuLgNq1lD72JQyHi3j3kMKzPUp5QmONL1Y: Timeout during connect (likely firewall problem)
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for da.wikihoster.de is: de
Debug
The current status.io status for Let's Encrypt
Operational

Submitted Jul 13 12:53:15 2022. Sat in queue for 6ms. Completed in 25s. Hide verbose information.