Detect the technologies, hosting, and server stack behind any website.
Users
240
+32 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
5
0 in 30 days
Store rank
#59K
#49K among extensions
Version
0.17.0
updated 10 Jul 2026
Users
monthly, 4 months
Latest, 15 Oct 2026:240 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
Latest, 15 Oct 2026:5 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About WebAnalyzer
X-ray any site: tech stack & versions, CVEs, security headers, DNS, WHOIS & sitemap — 100% private. EN · PT-BR · DE
See exactly how any website is built — and whether it's exposed — in one click.
WebAnalyzer is your X-ray for the web. Open any page and instantly reveal its full technology stack, hosting, network footprint, security posture, known vulnerabilities and site structure. No sign-up. No data leaves your browser.
🔍 TECH STACK, DECODED
Detect the CMS, JavaScript frameworks, libraries, web servers, languages, CDNs, analytics and payment providers behind any site — each with a confidence score, the evidence that proves it, and the exact version when it's exposed. Deep-scan WordPress for its version, themes and plugins. Detection signatures refresh automatically, so new platforms are recognized without waiting for an update.
🖥️ SERVER & ORIGIN HOSTING
See the responding server, IP and status — plus, when a site isn't hidden behind a CDN, the real origin hosting provider and its ASN. When a CDN/WAF is masking the origin, WebAnalyzer tells you that too, instead of guessing.
🛡️ KNOWN VULNERABILITIES (CVEs)
Cross-check the components detected with a confident version against the OSV.dev vulnerability database and surface known CVEs/advisories — with severity and the version that fixes each one. Only version-identified technologies are checked: nothing is guessed, so you don't get false alarms.
🔐 SECURITY HEADER AUDIT
Instantly see which HTTP security headers are configured, misconfigured or missing — HSTS, CSP, X-Frame-Options and more — each with a plain-English explanation and the exact fix to apply.
🌐 NETWORK INTELLIGENCE
Full DNS records (A, AAAA, MX, TXT, NS, CAA…), passive subdomain discovery via Certificate Transparency logs, IP geolocation, and one-click export to a BIND zone file ready for Cloudflare import.
🗺️ SITEMAP & SITE STRUCTURE
Read the site's public sitemap — discovered through robots.txt and the standard locations — to reveal its sitemap files and its main, institutional pages (home, about, contact, services), with blog posts, products and other high-volume content filtered out. Copy any URL or open it in a new tab. Fully passive: only the site's own public crawler files, never hidden-path probing.
📇 WHOIS AT A GLANCE
Registrar, creation and expiry dates, and ownership — laid out clearly, no raw dumps.
🤖 AI-POWERED REPORTS
Turn raw analysis into a clear report in one click — Stack Intelligence, Security Posture, Competitive Brief or a Full Report. Connect your own n8n workflow; your data and keys stay yours.
🌍 SPEAKS YOUR LANGUAGE
Fully localized — the entire interface follows your browser language:
• English
• Português (Brasil)
• Deutsch
More languages on the way.
🔒 PRIVATE BY DESIGN
Everything runs locally in your browser. Vulnerability checks query the public OSV.dev API directly; your credentials and analysis never touch WebAnalyzer servers. No tracking, no account, ever.
Built for developers, security researchers, agencies, SEOs — and anyone who's ever wondered "how is this site built, and is it safe?"
Install WebAnalyzer and x-ray your first site in seconds.