Hi @chill
sometimes these are standard programs (browser, nslookup, dig). Sometimes these are online tools - there is a list (pinned in Help ):
One thing is curious: You have a Letsencrypt certificate, 2 days old:
| CRT-Id | Issuer | not before | not after | Domain names | LE-Duplicate | next LE |
|---|---|---|---|---|---|---|
| 1314345199 | CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US | 2019-03-24 23:44:53 | 2019-06-22 22:44:53 | 17068.l.time4vps.cloud | duplicate nr. 1 |
And now your server has the same ip address:
| Host | T | IP-Address | is auth. | ∑ Queries | ∑ Timeout |
|---|---|---|---|---|---|
| 17068.l.time4vps.cloud | A | 194.135.88.19 | yes | 1 | 0 |
| AAAA | yes | ||||
| www.17068.l.time4vps.cloud | Name Error | yes | 1 | 0 |
So NXDOMAIN shouldn't be a problem.