$ ls /tools
Web Tools
Free utilities for web pros. DNS, Whois, IP, stack detection — and more on the way.
$ dig domain.com
DNS Lookup
A, AAAA, MX, TXT, CNAME, NS, SOA, CAA records for any domain.
$ whois domain.com
Whois Lookup
Registrar, registration dates, name servers, expiration, raw whois output.
$ curl ifconfig.me
What's My IP
Your public IP, browser, language, and request headers — handy for debugging.
$ built-with url
Tech Stack Detector
What CMS, framework, CDN, analytics, and payment systems power any website.
$ nc -l 8080
Webhook Listener
POST XML/JSON/anything to a unique URL and inspect every captured request live.
$ oauth-debug
OAuth Tester
Run OAuth 2.0 flows and inspect authorization codes, tokens, scopes. Coming soon.
$ saml-decode
SAML Tester
Decode SAML responses, inspect assertions, validate signatures. Coming soon.