All Tools

Free online tools for domain research, DNS analysis, network diagnostics, and developer utilities.

Domain Tools

Check domain registration details, owner, registrar, and expiry date.

Modern RDAP protocol domain registration data lookup.

Instantly check if a domain name is available to register.

Check availability and WHOIS status of many domains at once.

View past WHOIS snapshots and ownership change history.

Compare WHOIS records of two domains side by side.

Discover domains related to or associated with a given domain.

Get an overall health and trust score for any domain.

Estimate the market value of a domain name.

Analyze domain authority, SEO metrics, and digital footprint.

Compare your domain against competitors across key metrics.

DNS & Network Tools

Deep analysis of A, AAAA, MX, CNAME, TXT, and NS records.

Find all domains hosted on a given IP address.

Detect your current public IP address and geolocation.

Test latency and reachability of any host or IP address.

Check whether specific ports are open or closed on a host.

Inspect SSL/TLS certificate details, expiry, and chain validity.

Developer Tools

Validate email syntax, MX records, and detect disposable addresses.

Format, validate, and minify JSON data online.

Format, validate, and minify XML documents with syntax highlighting.

Beautify, format and preview HTML code with live rendering.

Convert times between any two timezones around the world.