Let's Debug

Test result for portalis.caa.cz using http-01

Error
portalis.caa.cz has an A (IPv4) record (193.86.115.73) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with portalis.caa.cz/193.86.115.73: Get "http://portalis.caa.cz/.well-known/acme-challenge/letsdebug-test": dial tcp 193.86.115.73:80: i/o timeout

Trace:
@0ms: Making a request to http://portalis.caa.cz/.well-known/acme-challenge/letsdebug-test (using initial IP 193.86.115.73)
@0ms: Dialing 193.86.115.73
@10001ms: Experienced error: dial tcp 193.86.115.73:80: i/o timeout
A test authorization for portalis.caa.cz to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
193.86.115.73: Fetching http://portalis.caa.cz/.well-known/acme-challenge/IC94eq5Foi13YrdnvD_R-8E5oWCup6YYG1AOyakXuVw: Timeout during connect (likely firewall problem)
Debug
Requests made to the domain
Request to: portalis.caa.cz/193.86.115.73, Result: [Address=193.86.115.73,Address Type=IPv4,Server=,HTTP Status=0], Issue: ANotWorking
Trace:
@0ms: Making a request to http://portalis.caa.cz/.well-known/acme-challenge/letsdebug-test (using initial IP 193.86.115.73)
@0ms: Dialing 193.86.115.73
@10001ms: Experienced error: dial tcp 193.86.115.73:80: i/o timeout

Debug
A and AAAA records found for this domain
portalis.caa.cz. 0 IN A 193.86.115.73
Challenge update failures for portalis.caa.cz in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/2404902244
acme: error code 400 "urn:ietf:params:acme:error:connection": 193.86.115.73: Fetching http://portalis.caa.cz/.well-known/acme-challenge/IC94eq5Foi13YrdnvD_R-8E5oWCup6YYG1AOyakXuVw: Timeout during connect (likely firewall problem)
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for portalis.caa.cz is: cz
Debug
8 Certificates contributing to rate limits for this domain

Serial: 382373360624109592389487784629329569389824
NotBefore: 2022-04-24 00:53:52 +0000 UTC
Names: [web.caa.cz]

Serial: 402203443505036078952933158798743289083865
NotBefore: 2022-04-24 00:51:08 +0000 UTC
Names: [ros.caa.cz]

Serial: 346114853614148708027468191629284119334708
NotBefore: 2022-04-24 00:48:35 +0000 UTC
Names: [portal2.caa.cz]

Serial: 303543021821110921452263991507239866805436
NotBefore: 2022-04-24 00:45:10 +0000 UTC
Names: [kompenzace.caa.cz]

Serial: 312380957505645996255460258712233299073017
NotBefore: 2022-04-24 00:39:53 +0000 UTC
Names: [api.amed.caa.cz]

Serial: 382269628687307647845629245477819927722254
NotBefore: 2022-04-24 00:38:21 +0000 UTC
Names: [amed.caa.cz]

Serial: 384816617495563074079170295261647931331504
NotBefore: 2022-04-19 05:45:07 +0000 UTC
Names: [www.caa.cz]

Serial: 289414760594058312221890765162652798727300
NotBefore: 2022-04-19 05:43:04 +0000 UTC
Names: [caa.cz]

Debug
The current status.io status for Let's Encrypt
Operational

Submitted Apr 25 16:49:44 2022. Sat in queue for 2ms. Completed in 23s. Hide verbose information.