Website technology detector
See the technology behind any website.
Enter one public URL and get a detailed technology profile: CMS, ecommerce platform, Shopify theme and apps, WordPress theme and plugins, JavaScript and CSS frameworks, backend frameworks, programming languages, analytics, cloud, CDN, payments, authentication, security and more.
Connecting…10%
233 technology fingerprints
58 technology categories
Evidence-based detection
Downloadable report
Technology profile
Website report
Public scan complete
Architecture summary
What this website is built with
Key technologies grouped by the part of the website they power.
Detailed technology inventory
Detected technologies by category
Technologies can appear under more than one category when they play multiple roles — for example, Nuxt can be a JavaScript framework, web framework and static site generator.
Mobile performance
WaitingPageSpeed snapshot
Performance data loads separately so the technology report appears first.
Run a scan to load performance data.
Useful beyond curiosity
Built for decisions that depend on website technology.
One detailed technology profile can answer very different questions for marketers, developers, agencies and researchers.
SEO & growth
See analytics, tag managers, marketing automation, consent tools, structured data and performance technologies before planning an audit.
Development
Identify frontend frameworks, UI libraries, backend frameworks, programming languages, build tools and hosting clues before a rebuild.
Competitive research
Understand which ecommerce platform, themes, apps, plugins, payments and infrastructure competitors expose publicly.
Sales & agencies
Qualify prospects by CMS, ecommerce system, page builder, analytics, CDN, hosting and visible integrations before outreach.
Migration planning
Create an early inventory of the public technology surface before moving a website to Shopify, WordPress or a custom stack.
Security awareness
Spot public WAF, CAPTCHA, authentication and infrastructure signals as context for a broader security review.
Complete technology lookup
Turn one URL into a detailed technology profile.
WebBuildFinder does not stop at “WordPress” or “Shopify.” It keeps looking for the technologies around the platform: frameworks, libraries, analytics, infrastructure, authentication, payments and more.
- Frontend and backend technologies in one report
- Platform-specific theme, app and plugin details
- Evidence and confidence shown for each detection
example.com
Technology profile
JS frameworkVue.js92%
Web frameworkNuxt.js94%
UI frameworkVuetify86%
AnalyticsGA496%
CDNCloudflare98%
Platform deep dive
Go deeper automatically when Shopify or WordPress is found.
The same scan switches into platform-specific detection without sending the visitor to another tool.
- Shopify theme name, Theme Store ID and visible storefront apps
- WordPress theme metadata, child/parent theme and visible plugins
- Unknown public plugin slugs are still surfaced instead of discarded
Theme + apps
Theme: Prestige
Klaviyo
Judge.me
Recharge
Theme + plugins
Theme: Astra
WooCommerce
Elementor
Rank Math
Frontend & backend architecture
See more than the visible page builder.
The registry now covers framework layers that matter to developers: JavaScript frameworks, UI/CSS systems, build tools, backend frameworks, runtimes and programming languages.
- React, Vue, Nuxt, Next.js, Angular, Svelte and more
- Tailwind, Bootstrap, Vuetify, Material UI, Ant Design and more
- Laravel, Django, Rails, Express, NestJS, ASP.NET and more
- PHP, Node.js, Python, Ruby, Java, Go and Elixir signals
FrontendVue.js · Nuxt.js
UI / CSSVuetify · Tailwind
Build toolsWebpack · core-js
BackendNode.js · Express
LanguageJavaScript
Analytics & growth stack
Map the tools collecting, routing and activating visitor data.
Technology detection is often most useful when it explains how a site measures and markets — not just how the page is rendered.
- Google Analytics, GA4, Adobe Analytics, Mixpanel and more
- Google Tag Manager, Tealium and Adobe tag management
- Meta Pixel, TikTok Pixel, LinkedIn Insight and Pinterest
- HubSpot, Klaviyo, Marketo, ActiveCampaign, Braze and more
Data
GA4GTMMetaKlaviyoHubSpotSegmentCloud, delivery & security
Understand the infrastructure clues around the application.
Headers, cookies and public assets can reveal parts of the delivery layer even when the application code itself is private.
- Cloudflare, CloudFront, Fastly, Akamai and Bunny CDN
- AWS, Azure, Google Cloud, Vercel, Netlify, Render and more
- nginx, Apache, LiteSpeed and IIS server clues
- reCAPTCHA, Turnstile, Cognito, Auth0, Okta and other security/auth signals
Website
CDN
Cloud
Auth
WAF
Server
How it works
Multiple signals. One consolidated answer.
A website can hide one clue and expose another. The scanner combines several public sources before returning a result.
Fetch the public response
Validate the URL, resolve a public IP, follow redirects and collect the final HTML and response headers.
Inspect page fingerprints
Check markup, generator metadata, script/style URLs, cookies and selected first-party asset content.
Match technology evidence
Run those signals against the technology registry and attach confidence, version clues and evidence.
Run platform-specific checks
When Shopify or WordPress is confirmed, automatically add themes, apps, plugins and platform metadata.
Coverage
A technology inventory built to grow.
The current registry contains 233 fingerprints across 58 categories, and the architecture lets you expand it without rebuilding the interface.
CMSEcommerceJavaScript frameworksUI frameworksBackend frameworksProgramming languagesBuild toolsAnalyticsTag managersAdvertisingCloud platformsPaaSCDNWeb serversAuthenticationSecurityPaymentsLive chatMarketing automationCustomer supportStructured dataCookie consentError trackingUptime monitoring
Custom web development
Found a website you like? Build your own version of the experience.
Share the reference website and the parts you want to reproduce functionally. We can build an original Shopify, WordPress, React, Next.js, Laravel or custom implementation without copying protected code or assets.
- Shopify and WordPress builds
- React, Next.js and Laravel development
- Platform migrations and redesigns
- Performance and technical SEO
FAQ
What a public detector can — and cannot — know.
Can WebBuildFinder detect everything Wappalyzer or BuiltWith can?
No detector has perfect visibility. WebBuildFinder now covers a much broader technology surface, but detection depends on public fingerprints and its own registry. It does not claim access to private server or admin data.
Why can a technology appear in several categories?
Some technologies genuinely play several roles. Nuxt, for example, can be a JavaScript framework, web framework and static site generator. The detailed report can show it in every relevant category.
Can it detect programming languages and backend frameworks?
Yes when reliable public clues exist. Examples include PHP, Node.js, Python, Ruby, Java and Elixir plus Laravel, Django, Rails, Express, NestJS, ASP.NET and others. Server-side software can still be hidden.
Does it detect every Shopify app or WordPress plugin?
No. It detects visible storefront or front-end footprints. Backend-only Shopify apps and WordPress plugins that leave no public traces cannot be reliably identified from outside the site.
Why might a scan fail with HTTP 403?
Some CDNs and firewalls block automated server requests. In that case the scanner reports that the website could not be verified rather than fabricating a technology result.