Free Domain Tools

Trace the full redirect chain for a URL.

Identify technologies used by any website.

Score how clearly a website can be found, read, governed, and used by compatible AI agents.

Detect hosting provider, CDN, WAF, DNS provider, and email infrastructure for any domain.

Check if a domain is parked or listed for sale on aftermarket platforms like Sedo, Afternic, or Dan.com.

Categorize a website by industry, content type, and topics.

Check if your domain is available across multiple TLDs instantly.

Get AI-powered domain name ideas based on your keywords.

Estimate the market value of any domain name.

Check DNS, SSL, email auth, and security headers.

Get domain registration and ownership information.

Get a comprehensive profile of a domain including WHOIS, DNS, and hosting information.

Compare standard TLD prices refreshed on a schedule from official registrar APIs and pricing pages. Coverage varies, and checkout verification is still required.

Access RDAP (Registration Data Access Protocol) data through a simple API. Get structured, machine-readable domain information from authoritative sources.

Track domain registration and expiry dates.

Calculate a domain's age from available registration evidence and see the date used.

Review WHOIS/RDAP snapshots DomScan observed after fresh live lookups. Compare registrar, nameserver, expiry, status, DNSSEC, transfer-lock, and privacy/redaction signals.

Query DNS records for any domain.

Review day-level DNS values observed by prior successful DomScan lookups. Beta coverage is not an internet-wide passive DNS archive.

Find a domain's live MX records and see which mail servers have priority.

Compare DNS answers across configured public recursive resolvers and spot differences.

Get geolocation data for an IP address including country, city, and ISP.

Identify device manufacturer from MAC address.

Discover subdomains for a domain using various enumeration techniques.

Find domains that could be impersonating your brand.

Verify SSL certificates and check expiry dates.

Get an SSL/TLS configuration grade (A+ to F) with detailed scoring and security recommendations.

Find exposed software, risky configurations, and known affected versions across a public website. Every result explains what was checked, why it matched, and how strong the evidence is.

Check domain reputation across multiple threat intelligence sources.

Check SPF, DKIM, and DMARC configuration.

Check a domain's live SPF record, validate its syntax, and review its sending policy.

Check a domain's live DMARC record, validate its syntax, and review its email policy.

Look up and validate the DKIM public key published for a domain and selector.

Detect disposable emails, role-based addresses, and validate deliverability

Build and validate SPF records. Visual SPF builder with include, IP, and mechanism support.

Build DMARC records with policy, reporting, and alignment options.

Discover DKIM selectors for any domain. Check common providers and validate public keys.

Verify if email addresses are real and deliverable

Validate and format phone numbers, then inspect the offline intelligence available for their prefix. No paid telecom lookup or live reachability check is performed.

Look up company information associated with a domain.

Check if a username is available across major social media platforms.

Real-time typosquatting threat detection with live availability checking

Manage your domain watchlist. Get notified when domains become available or change status.

Compound API endpoints that bundle multiple services into workflow-optimized operations. Save credits and get comprehensive analysis in a single request.