DNS errors can cause websites to become unreachable or slow. Here are some common issues and simple fixes:
1. DNS_PROBE_FINISHED_NXDOMAIN
Cause: Domain name doesn't exist or wrong DNS settings.
Fix: Check if your domain is registered and DNS records are correctly configured. Clear your DNS cache or try different DNS servers.
2. SERVFAIL
Cause: Server error while processing the DNS query.
Fix: Verify your authoritative DNS servers are healthy and correctly set up. Test with tools like dig to spot misconfigurations.
3. Timeouts (DNS request timed out)
Cause: DNS server too slow or unreachable.
Fix: Switch to a faster DNS provider (like Cloudflare, Google). Ensure your firewall or hosting provider isn't blocking DNS traffic.
4. Misconfigured Nameservers
Cause: Wrong nameservers listed at the registrar.
Fix: Double-check that the correct nameservers are set where you registered your domain.
5. Propagation Delays
Cause: New DNS changes not yet fully updated worldwide.
Fix: Be patient — DNS changes can take 24–48 hours. Lower TTL values before making updates to speed future propagation.
6. DNSSEC Problems
Cause: Incorrect DNSSEC configuration leads to validation failures.
Fix: Make sure DNSSEC records (DS, DNSKEY) are properly set. If unsure, temporarily disable DNSSEC.
Quick Tip: Always monitor DNS changes and test with multiple tools (dnschecker.org, intodns.com) after any update.
Proper DNS management keeps your site fast and reachable — don’t ignore those small errors!
Common DNS Errors: How to Fix Them?
Forum rules
Behave rationally.
Behave yourself.
Self moderate your posts.
Be reasonable.
No Spam.
No Blunt promotion.
No nonsense whatsoever.
Behave rationally.
Behave yourself.
Self moderate your posts.
Be reasonable.
No Spam.
No Blunt promotion.
No nonsense whatsoever.