So DNS flag day 2019 is here. Use the following link to check your website’s DNS server/provider.
HOW to check?
Visit
https://dnsflagday.net
Submit your website name under “I’m a domain holder” heading form
If error appeares check the link provide after “technical report”
send the report to your web host for further investigation
A FAIL DNS SERVER report will look like this https://ednscomp.isc.org/ednscomp/599cc74c1d
and a PASS DNS SERVER report will be like https://ednscomp.isc.org/ednscomp/22d218d9a8
DNS status codes
https://kb.isc.org/docs/dns-flag-day-notes-for-authoritative-zones
DNS Flag day HELP VIDEO – Test – Help link in description