Website Technology Detector API

Reveal the public technology stack behind any website

Deterministically identifies website technologies from the initial public HTML response, headers, cookies, metadata, scripts, stylesheets, and resource URLs.

POST/api/website-technology-detector/v1/detect-technologies

Open API documentation View plans

Website Technology Detector API illustration

Starting atFree

What it does

Reveal the public technology stack behind any website

Analyze a public HTTP or HTTPS website and receive confidence-scored technology detections with concrete fingerprint evidence. The detector covers content management and commerce systems, backend stacks, web and JavaScript frameworks, CSS libraries, servers, CDNs, hosting platforms, analytics, marketing, support widgets, captcha, payments, fonts, maps, and SEO plugins. It follows a small redirect chain while revalidating and pinning every destination against SSRF, limits response size, and never uses AI or speculative guessing.

Confidence-scored deterministic technology detection

Confidence-scored deterministic technology detection.

Concrete evidence for every reported technology

Concrete evidence for every reported technology.

Reliable version extraction without guessing

Reliable version extraction without guessing.

Coverage across 18 technology categories

Coverage across 18 technology categories.

Initial-response analysis without site crawling

Initial-response analysis without site crawling.

Redirect reporting with per-hop SSRF validation

Redirect reporting with per-hop SSRF validation.

Bounded response size and configurable timeout

Bounded response size and configurable timeout.

Extensible data-driven fingerprint catalog

Extensible data-driven fingerprint catalog.

Stable endpoints

One service, documented request contracts

POST

/api/website-technology-detector/v1/detect-technologies

Fetches one public website document, follows safe redirects, and returns deterministic technology detections with confidence, evidence, and reliably exposed versions.

Simple monthly plans

Start free, then scale the same API token

Plus includes 10× the Free quota. Pro includes 500× the Free quota.

Free

Free access for testing and light usage.

50 API requests per month
Service-scoped API token
Interactive documentation and live tester
Community availability

Start free

Plus

5.99 EUR/month

10× the Free request quota.

500 API requests per month
Service-scoped API token
Interactive documentation and live tester
Standard production usage

Choose Plus

Pro

19.99 EUR/month

500× the Free request quota for production workloads.

25,000 API requests per month
Service-scoped API token
Interactive documentation and live tester
High-volume production usage

Choose Pro