01The site
ItsMyIp is a constellation of free network tools, no account, no install: IP address, DNS and propagation tests, email configuration (SPF, DKIM, DMARC), HTTP and security headers, whois, TLS certificates, subnets, redirects, user agent, WebRTC — plus a page audit that wraps it all into a score out of 100.
Every tool lives on a simple page: results show instantly, are also available as plain text through curl, and every analysis has an open JSON API (open CORS, no key) documented in llms.txt. The site is deliberately lightweight: no external resources, no framework, no downloaded fonts.
02Your data
Nothing is kept. Your requests — the IP address displayed, the domains queried, the URLs traced — are processed on the fly and then forgotten: no visitor database, no named logs, no resale.
One transparent exception: the page audit stores the audited URL, the date and the scores obtained (never your IP address nor anything about you), in order to show the evolution between two runs. Only the last 20 audits of each URL are kept.
The site uses Google Analytics for aggregate audience measurement (page views, referrers). You can block that script (content blocker, anti-tracking list) without losing any functionality.
03Legal notice
Publisher — a personal, non-commercial website. In accordance with article 6, III-2 of French law no. 2004-575 of 21 June 2004 (LCEN), a non-professional publisher may remain anonymous provided the hosting provider is identified below. The publication director is the site's publisher.
Hosting provider — Cloudflare, Inc., 101 Townsend Street, San Francisco, CA 94107, USA — cloudflare.com. The site runs on Cloudflare Workers, a globally distributed infrastructure.
Liability — tool results (DNS, whois, certificates, audits…) come from public sources queried live and are provided for information only, with no guarantee of accuracy or completeness. Audit scores reflect automated technical checks at a point in time, not a value judgment on a site or its publisher.
04Feedback or bugs?
The site evolves regularly — new tools keep coming. If a result looks wrong, re-test first (DNS caches and registry rate limits cause transient false negatives), then use the contact form: reproducible reports and tool suggestions land there directly.
05More tools
My IP & network
BGP / RPKISee who announces an IP: BGP prefix, origin AS, RPKI validation SubnetCompute netmask, range and hosts of a subnet (CIDR) Port checkCheck whether a port is open on your IP addressDNS & domains
DNS lookupQuery a domain's DNS records (A, MX, TXT…) DNS propagationCompare the answers of five public DNS resolvers WhoisA domain's registrar and expiry, an IP's or AS's holder Punycode / IDNConvert a domain Unicode ↔ punycode and detect homographsWeb & SEO
Page auditAudit a web page: security, SEO, performance — score /100 HTTP headersSee the HTTP headers your browser sends Security headersGrade a site's security headers: CSP, HSTS… (A–F) Link previewPreview a page's share cards (Open Graph, Twitter Cards) Robots.txt testerTest a site's robots.txt: are Googlebot, GPTBot, ClaudeBot… allowed? TLS certificatesList a domain's SSL/TLS certificates and their expiry RedirectsFollow a URL's redirect chain (301, 302…) Site down?Check whether a website is down for everyone or just for you User agentDisplay and decode your user agent (browser, OS, device)Privacy & passwords
WebRTC leakCheck whether WebRTC reveals your real IP address despite a VPN PasswordsGenerate strong random passwords, nothing ever sent Password leakCheck whether a password appears in data breachesDev & encoding
JWT decoderDecode a JWT and verify its signature, nothing ever sent Unix timestampConvert an epoch timestamp to a date and back, live Cron expressionsDecode a crontab expression and compute the next run times Base64Encode and decode Base64 (UTF-8, URL-safe), nothing ever sent MD5/SHA digestsCompute the hash of text or a file (MD5, SHA-256…), locally UUID generatorGenerate random v4 or time-ordered v7 UUIDs