Troubleshooting

The following topics are useful for troubleshooting DNS issues.

Resource	Location	Type
FAQs — DNS Firewall	DNS Firewall	FAQ
Troubleshooting DNSSEC	DNSSEC	Troubleshooting
Fix DNS_PROBE_FINISHED_NXDOMAIN	Troubleshooting	Troubleshooting
General DNS issues	Troubleshooting	Troubleshooting
Fix DNS_PROBE_POSSIBLE error	Troubleshooting	Troubleshooting
Troubleshooting email issues	Troubleshooting	Troubleshooting
General FAQ	Troubleshooting	FAQ
Unexpected _acme-challenge TXT records	DNS records > DNS records	Troubleshooting
Cannot verify a domain with CNAME	DNS records > DNS records	Troubleshooting
Existing NS records block new record creation	DNS records > DNS records	Troubleshooting
Exposed IP addresses	DNS records > DNS records	Troubleshooting
Cannot add DNS records with the same name	DNS records > DNS records	Troubleshooting
Stale response for upstream DNS resolution	DNS records > DNS records	Troubleshooting
Troubleshooting full setup	DNS setups > DNS setups	Troubleshooting
Cannot add domain to Cloudflare	DNS setups > DNS setups	Troubleshooting
Delete all DNS records	DNS setups > DNS setups	Troubleshooting
Domain deleted from Cloudflare	DNS setups > DNS setups	Troubleshooting
Troubleshooting secondary nameservers	DNS setups > DNS setups	Troubleshooting