Troubleshooting
The following topics are useful for troubleshooting DNS issues.
| Resource | Location | Type |
| FAQs — DNS Firewall | DNS Firewall | FAQ |
| Troubleshooting DNSSEC | DNSSEC | 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 | Cloudflare DNS docs | DNS records > DNS records | Troubleshooting |
| Cannot add DNS records with the same name | DNS records > DNS records | Troubleshooting |
| General DNS issues | Cloudflare DNS docs | Troubleshooting | Troubleshooting |
| Fix DNS_PROBE_FINISHED_NXDOMAIN | Troubleshooting | Troubleshooting |
| Fix DNS_PROBE_POSSIBLE error | Troubleshooting | Troubleshooting |
| Troubleshooting email issues | Troubleshooting | Troubleshooting |
| General FAQ | Cloudflare DNS docs | Troubleshooting | FAQ |
| Troubleshooting full setup | Zone setups > Zone setups | Troubleshooting |
| Cannot add domain to Cloudflare | Zone setups > Zone setups | Troubleshooting |
| Delete all DNS records | Zone setups > Zone setups | Troubleshooting |
| Domain deleted from Cloudflare | Zone setups > Zone setups | Troubleshooting |
| Troubleshooting secondary nameservers | Zone setups > Zone setups | Troubleshooting |