Let's Debug

Test result for woa.ro using http-01

A fatal issue occurred during the DNS lookup process for woa.ro/CAA.
DNS response for woa.ro/CAA did not have an acceptable response code: SERVFAIL
A fatal issue occurred during the DNS lookup process for woa.ro/A.
DNS response for woa.ro/A did not have an acceptable response code: SERVFAIL
A fatal issue occurred during the DNS lookup process for woa.ro/AAAA.
DNS response for woa.ro/AAAA did not have an acceptable response code: SERVFAIL
Fatal
No valid A or AAAA records could be ultimately resolved for woa.ro. This means that Let's Encrypt would not be able to to connect to your domain to perform HTTP validation, since it would not know where to connect to.
No A or AAAA records found.
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for woa.ro is: ro
Debug
4 Certificates contributing to rate limits for this domain

Serial: 266310525269457103948710667890710226369460
NotBefore: 2022-01-20 12:19:57 +0000 UTC
Names: [woa.ro]

Serial: 399549683681466367176841102553618011183285
NotBefore: 2022-01-20 12:11:39 +0000 UTC
Names: [webmail.woa.ro]

Serial: 280151134587559941396134581854083896577280
NotBefore: 2022-01-20 12:04:15 +0000 UTC
Names: [webmail.woa.ro]

Serial: 298943288180354069792546846820160287861038
NotBefore: 2022-01-20 09:14:44 +0000 UTC
Names: [ns3.woa.ro]

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

Submitted Jan 21 21:39:13 2022. Sat in queue for 62ms. Completed in 5m19s. Hide verbose information.