Detechtor AI is a free website technology checker that reveals the entire tech stack behind any site in one click — CMS, frameworks, analytics, CDN, hosting and payment systems — with version numbers and the evidence to prove it.
Works on Chrome, Edge, Brave & Opera · No account, no tracking, no data collection.
Detechtor is already working — here's how to see your first tech stack.
Click the puzzle icon in your toolbar and pin Detechtor AI so it's always one click away.
Detechtor analyzes pages automatically — the badge on the icon shows how many technologies it found.
Open the popup to browse Technologies, Site and Security — click any technology to see the evidence.
Tip: the toolbar icon morphs into the logo of the site's main technology — you'll know it's WordPress before you even click.
Detechtor AI is a free Chrome extension that answers one question instantly: "what is this website built with?" Open any site, click the icon, and the full technology stack appears — the CMS or e-commerce platform, JavaScript frameworks, analytics and marketing tools, CDN, server and hosting provider, payment systems, live chat widgets and more, all grouped into clear categories.
Unlike a simple website technology lookup, Detechtor combines 14 detection signals — scripts, HTTP headers, cookies, DOM markup, global variables and even the content of external script files — to identify 164 technologies with version numbers and a confidence score. It's a powerful Wappalyzer and BuiltWith alternative that shows its work: click any detection and see exactly which signals triggered it.
Fantastic productivity tool for web developers. The detection is quick, the UI is intuitive, and it even helps identify AI-powered websites. Looking forward to future updates and new features!
This is exactly what I was looking for. Instead of inspecting source code manually, I can instantly see the technologies used on a website. Saves me a lot of time when researching new projects.
Excellent extension! I use it for competitor research and learning how modern websites are built. It's fast, lightweight, and provides useful insights with just one click. Highly recommended.
I've tested several tech stack detectors, and this one is surprisingly accurate. It detects frameworks, CMS, hosting, and AI-related technologies within seconds. Definitely becoming part of my daily workflow.
Really impressed with this extension. It quickly identifies the technologies and AI tools behind any website without slowing down my browser. The interface is clean, and the results are easy to understand. Great tool for developers and marketers!
Clean, fast, and very easy to use. I often analyze websites for inspiration and this extension gives me a quick overview of the technologies they're using without any hassle. It's accurate, lightweight, and has become one of my go-to developer tools.
On WordPress sites, Detechtor works as a WordPress theme detector and plugin detector in one — it lists the active theme and installed plugins with their exact versions, and links each one straight to wordpress.org.
Most technology checkers are a black box. Detechtor opens it: click any technology to see every signal behind the match — script URLs, HTTP headers, cookies, meta tags, CSS rules and markup — with a confidence score you can verify yourself.
Detechtor doubles as a security headers checker: it scores HTTPS, HSTS, Content-Security-Policy, X-Frame-Options and more into a clear A+ to F grade — and flags headers that quietly leak your server or PHP version to attackers.
Beyond the stack: IP address, server software, status code, HTTP/2 & HTTP/3 protocol, page title and description, canonical, robots meta, OG image, and script, stylesheet, image and cookie counts — everything exportable to JSON or CSV.
Everything you need to check website technology — in one lightweight extension.
CMS, e-commerce, JS frameworks, analytics, CDN, hosting, payments, live chat, cookie consent and more.
Exact versions for jQuery, React, Vue, Angular, Bootstrap, Nginx, PHP, WordPress themes & plugins and more.
Scripts and their contents, headers, cookies, DOM, CSS rules, window variables and URL patterns — combined for accuracy.
Detections imply each other: WooCommerce reveals WordPress, which reveals PHP and MySQL — automatically.
Findings accumulate per domain, so technologies seen on different pages merge into one complete report.
The icon transforms into the logo of the site's main technology — 108 official brand logos built in.
Paid services are marked with $ and freemium tools with $⁺ — see a site's software budget at a glance.
Export the full analysis for audits, reports and spreadsheets in one click.
All analysis runs locally in your browser. No data collection, no telemetry, no account needed.
Identify frameworks, libraries and versions on any site — and learn from stacks you admire.
See which analytics, tag managers and A/B tools competitors run, and audit SEO meta in seconds.
Scope client projects fast: CMS, page builder, plugins and hosting — before the first call.
Grade security headers, catch version leaks and check your own sites before attackers do.
Detechtor inspects pages on your device. Your browsing history and the sites you analyze are never uploaded anywhere.
Install Detechtor AI, open any website, and click the Detechtor icon in your toolbar. In one click you'll see the site's full tech stack — CMS, e-commerce platform, JavaScript frameworks, analytics, CDN, hosting and more — grouped by category with version numbers.
Detechtor identifies WordPress, Shopify, Wix, Squarespace, Drupal, Joomla and many other CMS platforms — usually with the exact version. On WordPress sites it also lists the active theme and installed plugins.
Yes. It lists the active theme and installed plugins with versions, using two detection paths — asset URLs and HTML signatures — so it even catches plugins whose files are merged or cached. Each entry links to its wordpress.org page.
Yes. Detechtor detects 164 technologies across 22 categories using 14 signal channels, shows the exact evidence behind every match, adds a security header grade — and runs 100% locally with no account required.
Yes — for jQuery, React, Vue, Angular, Bootstrap, Nginx, PHP, WordPress themes and plugins and more, whenever the site exposes them.
Detechtor scores the site's HTTP response headers — HTTPS, HSTS, Content-Security-Policy, X-Frame-Options and more — from A+ to F, and flags headers that leak server or PHP version information.
Detechtor is free to install and use. All analysis happens locally in your browser — your browsing data is never uploaded to any server, and there is no telemetry.
Yes. Every analysis — technologies, site information and the security report — exports to JSON or CSV in one click.
Chrome, Edge, Brave, Opera and other Chromium-based browsers.
Detechtor AI is a free Chrome extension built to check website technology in one click. If you've ever wondered what a website is built with, what CMS a site uses, or which WordPress theme and plugins power a competitor's site, Detechtor answers instantly — right in your browser.
As a page loads, Detechtor listens to 14 signal channels: meta tags, script URLs, the contents of external script files, cookies (including HttpOnly), HTTP response headers, DOM selectors, JavaScript variables, CSS rules and URL patterns. A regex engine matches these signals against a database of 164 technology signatures across 22 categories, extracts version numbers where possible, and assigns each detection a confidence score. Indirect inference fills in the rest — detecting WooCommerce implies WordPress, which implies PHP and MySQL.
People use Detechtor for competitor research (which platform, plugins and marketing tools rivals use), sales prospecting (find sites running a specific CMS or missing a tool you sell), project scoping (know a client's stack before the first call), learning (see how impressive sites are built) and security checks (grade headers and catch version leaks on your own sites before launch).
Yes. Detechtor analyzes pages entirely on your device and never sends your browsing data to a server. You can disable it per site, and the results panel works in dark or light theme. Detechtor is an independent tool and is not affiliated with any detected technology vendor.
Stop guessing what sites are built with. Install Detechtor AI and get the full tech stack, WordPress details and security grade of any website — in one click, completely free.
Add Detechtor AI to your browser and see the technologies, WordPress plugins and security grade of every site you visit — instantly.
Add Detechtor to Chrome — FreeNo account • 100% Free • Nothing leaves your device • Instant install
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