DNS & domains
Look up DNS records, name servers and the registration of a domain at the authoritative source.
What it is and what it is for
DNS turns domain names into the addresses computers use to find each other. Here the query goes straight to the authoritative servers instead of relying on your provider's cache.
When to use it and which problems it solves
Use it after a migration to confirm the domain already points to the new server, to investigate email that never arrives because of SPF and MX records, and to find out who registered a domain.
Main tools
- DNS & domainsDNS CheckerQuery A, AAAA, MX, TXT, CNAME, NS and SOA records for any domain.
- DNS & domainsMy DNSDiscover which DNS servers resolve your queries.
- DNS & domainsWHOIS LookupLook up public domain registration data through RDAP.
- SecuritySSL CheckerLook up SSL/TLS certificates issued for a domain.
- IP addressesIP CheckerSee your public IP address, IPv4, IPv6 and your connection details in real time.
- PerformancePing TestMeasure latency to the network and understand the browser's limits.
Every tool in this category
3 tools