- Browser Privacy CheckSee what your browser leaks: fingerprint surface, exposed APIs, and privacy signal irony, all analyzed on your device.webrtc leak testam i unique
- DMARC Report ViewerDrop a DMARC aggregate report and see who is sending as your domain.dmarc xml readerdmarc rua analyzer
- DNS LookupQuery A, AAAA, MX, TXT, and other DNS records over DNS-over-HTTPS through Cloudflare, Google, or dns.sb, no server needed.dns lookupdoh querydns over httpsreverse dns lookup
- DNS PropagationCompare live DNS answers from Cloudflare, Google, and dns.sb side by side.doh lookupdns record check
- Email Header AnalyzerSPF, DKIM and DMARC verdicts plus a hop-by-hop delay waterfall from raw email headers.trace email path
- HTTP Header InspectorSee exactly which HTTP request headers your browser sends, with a plain English explanation for User-Agent, Sec-CH-UA, and more.user agent headersec-ch-ua
- Local File DropSend files straight from one browser to another over WebRTC, on the same Wi-Fi or across the internet, with no upload in between.p2p file transferlocal file sharing
- Subnet CalculatorCIDR math, address ranges, splitting, and supernetting for IPv4 and IPv6.subnet calculatorcidr calculatorip subnetnetmask calculator
- URL ParserBreak a URL into scheme, host, port, path, query parameters, and fragment, with percent-encoding decoded on every field.url parserparse urlurl breakdownquery params
- User-Agent ParserDecode a raw User-Agent string into browser name and version, rendering engine, operating system, and device type.user agent parserua parseruser agent stringbrowser detection
- WebRTC DebuggerParse ICE candidates from SDP or JSON, classify each address, and interpret STUN and TURN reachability results.webrtc testerice candidatestun testturn test