Enter a domain
Enter one domain or hostname without https:// or a path. NS is selected by default.
DNS Checker
Compare nameservers across DNS resolvers, then inspect records and email authentication.
RESOLVER COMPARISON
DNS propagation comparison
Compare NS answers from Cloudflare, Google and Quad9. These are public resolvers, not separate geographic checkpoints.
DNS RECORDS
Detailed DNS records
Values shown below come from the server's DNS resolver. TTL values are reported in seconds.
SPF Check
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DMARC Check
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DNS answers may be cached, vary by location or take time to change. SPF checks count direct lookup terms only; nested include lookups are not recursively expanded. Empty records do not prove a domain is unregistered.
Find nameservers in seconds
Read the NS results
NS responses from Cloudflare, Google and Quad9 appear first. Copy an available nameserver set in one click.
Check DNS & email
Review the additional DNS records plus SPF and DMARC below the comparison.
Find the nameservers.
Understand the records.
Look up authoritative nameserver information, verify email-related DNS records, and compare answers returned by public resolvers.
NS firstA / AAAA / MX / TXTSPF & DMARCResolver comparison
Frequently asked questions
How do I check a website's nameservers?
Enter the domain and click Check DNS. The NS comparison from Cloudflare, Google and Quad9 appears first. Subdomains only show NS records when their zone is delegated.
Why do different resolvers show different nameservers?
Resolver caches and updates can differ. The comparison helps you see answers from Cloudflare, Google and Quad9, but is not a country-by-country propagation test.
Can I check MX, SPF and DMARC records?
Yes. MX and TXT are included in the DNS record list. SPF is derived from the domain's SPF TXT record, while DMARC is read at _dmarc.yourdomain.
Does DNS Checker show registrar expiry?
No. This first release checks DNS records and resolver responses, not registrar or registration expiry details.
Does Bovolab save submitted domains?
The application does not save lookup results or submitted domains to a database or application files. Standard hosting or network logs may still exist.