Twelve fast, no-signup tools for domains and websites - availability, WHOIS, DNS, SSL, email auth, hosting, subdomains, security headers and more. Every tool runs in your browser, ships with a command line, and plugs into Claude, ChatGPT, Gemini and Kimi through one MCP connector and a REST API. Connect once, then just ask your AI.
Tools
Check if a domain is available across every common TLD at once, or bulk-check a whole list. Priority on .com and .in.
Open toolGet the full registration record for any domain: registrar, dates, status, nameservers, DNSSEC and contacts, via RDAP.
Open toolLook up A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records for any domain over DNS-over-HTTPS.
Open toolInspect a site's SSL/TLS certificate: issuer, expiry, days remaining, SAN and TLS version.
Open toolAnalyze SPF, DMARC, DKIM and MX records and grade a domain's protection against email spoofing.
Open toolFind where a domain is hosted: IP addresses, hosting provider, ASN, country and reverse DNS.
Open toolCheck a DNS record across Google, Cloudflare, AdGuard and Quad9 to see if it has propagated.
Open toolEnumerate a domain's subdomains from public Certificate Transparency logs. Passive, no scanning.
Open toolGrade a site's HTTP security headers (HSTS, CSP, X-Frame-Options and more) with specific fixes.
Open toolTrace a URL's full redirect chain hop by hop, with every status code and the final destination.
Open toolBulk-check expiry dates for a whole list of domains, sorted by urgency. Great for AI renewal alerts.
Open toolConvert punycode and detect lookalike domains that impersonate brands - a common phishing trick.
Open toolPlanned: India-native tools - AI-first Indian utilities, coming soon
Validate an Indian GST number: checksum, state code and the embedded PAN, in one call.
Get the bank and branch details for any Indian IFSC code, ready for your AI to use.
Find the area, district and state for any Indian PIN code, plus every post office in it.
Validate a PAN's format and structure. Format check only, no data lookup, privacy-safe.
Decode an Indian vehicle registration prefix to its state and RTO office (e.g. MH12 = Pune).
WebToolsHub speaks the Model Context Protocol (MCP) and ships a REST API. Connect it once, then just ask your assistant to check domains for you. One local server works everywhere, or deploy a remote connector by URL.
WebToolsHub ships a single command line. Each tool is a subcommand, so the same tool works in your browser and your terminal.
# domain availability (live now) python cli.py domain mycoolsite --tlds com,in # full WHOIS record via RDAP (live now) python cli.py whois example.com # DNS records and SSL certificate (live now) python cli.py dns example.com python cli.py ssl example.com
Test brand names and grab the right domain before you build, across .com, .in and more.
Script domain checks in the terminal, or call the REST API from your own apps.
Plug the MCP server into Claude, ChatGPT, Gemini or Kimi so your agent can check domains on its own.
Bulk-check hundreds of names for clients and export the results as CSV.