SERVERSNEST • FREE DIAGNOSTICS
Free Domain & Hosting Tools
Check DNS records, SSL certificates, mail servers and domain registration information. Practical checks, clear results, and no account required.
DNS Record Checker
Inspect DNS answers and TTLs for eight common record types.
Open toolSSL Certificate Checker
Inspect certificate dates, names and trust verification on port 443.
Open toolMX Record Lookup
Find mail exchangers, priorities and their address records.
Open toolNameserver Checker
Inspect resolver NS answers and understand delegation limits.
Open toolWHOIS / RDAP Lookup
Read public registration dates, registrar and domain status.
Open toolDNS Propagation Checker
Check DNS answers from ten countries on a world map.
Open toolStart with the question you need to answer
Use the DNS checker to inspect a specific record, MX lookup for mail routing, and the SSL checker for certificate problems. Registration information comes from RDAP, while nameserver answers help identify the DNS service in use. Compare public resolvers after changing records to spot differences in their current answers.
Understand the limits of a single check
DNS caching, anycast routing and service-provider policies affect results. Most checks originate from this server; global propagation uses distributed probes. Results may be cached briefly. A successful result is useful evidence, not a complete security audit or an uptime guarantee. No tool makes changes to your DNS, registration or website.
USEFUL ANSWERS
Frequently asked questions
Are these tools free?
Yes. No account is required. Request limits protect availability for everyone.
Are results live?
Checks use real public services. Results may be cached for a short time; the result shows its check time and whether it was served from cache.
Do you store everything I enter?
Lookup results are temporarily cached. Usage totals are aggregated, and short-lived rate limits use hashed connection addresses. Do not enter private information.