# Tech Stack & CMS Detector – Website Technology Lookup (`friedl/tech-stack-detector`) Actor Find out which technologies thousands of websites use: CMS (WordPress, TYPO3, Shopify …), e-commerce platform, frameworks, analytics, ad pixels, cookie consent, chat, payment, CDN, hosting and web server, with versions. 190+ technologies, no browser, failed sites free, delta mode. - **URL**: https://apify.com/friedl/tech-stack-detector.md - **Developed by:** [Friedrich K](https://apify.com/friedl) (community) - **Categories:** Lead generation, Developer tools - **Security:** Limited permissions - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks - **User rating**: No ratings yet ## Pricing Pay per usage This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have. Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-usage ## What's an Apify Actor? An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md. ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run. For examples already wired to this Actor's own input schema, see the [API](#api) section below. Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`). # README ## Website Tech Stack Detector – CMS, Shop, Analytics & Hosting Find out which technologies a website uses – for one domain or a list of 10,000. The actor loads each homepage once and detects **190+ technologies** from the HTML, the response headers and cookie names. No browser, very cheap, failed websites are not charged. - **CMS and site builders:** WordPress, TYPO3, Drupal, Joomla, Contao, Ghost, Craft CMS, Webflow, Wix, Squarespace, Jimdo, Framer, headless CMS (Contentful, Sanity, Storyblok …) - **E-commerce:** Shopify, WooCommerce, Magento, Shopware, PrestaShop, BigCommerce, Salesforce Commerce Cloud, JTL-Shop - **Frameworks and libraries:** Next.js, Nuxt, React, Vue.js, Angular, SvelteKit, Astro, jQuery, Bootstrap, Tailwind CSS - **Marketing:** Google Analytics, Google Tag Manager, Matomo, Hotjar, Microsoft Clarity, Meta Pixel, LinkedIn Insight Tag, Google Ads, HubSpot, Klaviyo, Mailchimp - **Cookie consent:** Cookiebot, OneTrust, Usercentrics, Borlabs Cookie, Complianz, consentmanager - **Chat, payment, reviews:** Intercom, Zendesk, tawk.to, Stripe, PayPal, Klarna, Trustpilot, Trusted Shops - **Infrastructure:** Cloudflare, Fastly, Akamai, CloudFront, Vercel, Netlify, WP Engine, Nginx, Apache, IIS, PHP, ASP.NET - **Versions** where the site reveals them (e.g. `WordPress 6.6`, `Nginx 1.24.0`, `Angular 17.3.1`) - **Delta mode:** schedule it and receive only websites whose tech stack changed – e.g. a lead that migrated its shop system ### Use cases - **Lead generation and sales:** qualify lead lists by CMS, shop system or missing tools ("Shopware shops without a consent tool") - **Agencies and freelancers:** find websites on outdated or specific platforms to offer migrations and support - **Competitive research:** what do competitors use for analytics, chat, A/B testing or hosting? - **Compliance checks:** which of your own websites still load Google Analytics, Meta Pixel or no consent manager? ### Input example ```json { "urls": ["example.com", "https://www.example.org/shop", "example.net"] } ``` ### Output (one item) ```json { "url": "https://www.example-shop.de/", "finalUrl": "https://www.example-shop.de/", "statusCode": 200, "technologyCount": 7, "cms": "WordPress", "ecommerce": "WooCommerce", "technologies": [ { "name": "WordPress", "category": "CMS", "version": "6.6.2" }, { "name": "WooCommerce", "category": "E-commerce", "version": null }, { "name": "Yoast SEO", "category": "SEO plugin", "version": null }, { "name": "Borlabs Cookie", "category": "Cookie consent", "version": null }, { "name": "Google Tag Manager", "category": "Tag manager", "version": null }, { "name": "Cloudflare", "category": "CDN", "version": null }, { "name": "PHP", "category": "Programming language", "version": "8.2.12" } ], "byCategory": { "CMS": ["WordPress"], "E-commerce": ["WooCommerce"], "SEO plugin": ["Yoast SEO"], "Cookie consent": ["Borlabs Cookie"], "Tag manager": ["Google Tag Manager"], "CDN": ["Cloudflare"], "Programming language": ["PHP"] }, "fetchedAt": "2026-10-13T14:00:00.000Z" } ``` ### Pricing Pay per event: **USD 1.50 per 1,000 analysed websites** (event `result`), with lower prices on higher Apify subscription plans. There is no start fee. Websites that fail (DNS error, timeout, HTTP 4xx/5xx, blocked by robots.txt) are **not charged**; they are listed in the key-value store record `FAILED_URLS`. Users on the Apify Free plan are limited to 50 websites per run. ### How it works and limits - One GET request for the homepage (plus redirects, up to 5) and one request for `robots.txt` per host. 10 websites are analysed in parallel, at most 1 request per second per host. 1,000 websites take about 3–6 minutes. - Detection uses the actor's own signature list: script and stylesheet URLs, meta generator tags, response headers, cookie names and characteristic HTML markers. JavaScript is not executed, so tools that are loaded only after cookie consent or by a tag manager may not be visible – the tag manager itself is detected. - Only the homepage (or the URL you enter) is analysed, not the whole site. - **robots.txt is respected** (user agent `TechStackDetector`, otherwise the `*` rules), as are machine-readable text-and-data-mining reservations (`tdm-reservation: 1`). Such websites are skipped and not charged. - Some websites answer automated requests with 403 or a bot challenge page. The actor reports what the server delivers and never tries to bypass such protection. - Only technology names, categories and versions are returned – no page content, no contact data. ### Responsibility The actor reads publicly delivered technical information (HTML markers, headers, cookie names) of the websites you enter and identifies itself with an honest user agent. You are responsible for how you use the results, e.g. for marketing in line with applicable law. Product names are trademarks of their owners and are used only to describe detected technologies; this actor is not affiliated with any of them or with the websites analysed. ### Impressum / Legal notice Anbieter dieses Actors (Angaben gemäß § 5 DDG) / Provider of this actor: Friedrich Köhler\ Spatzenweg 7\ 04720 Döbeln\ Deutschland\ E-Mail: actorcreater_010@web.de # Actor input Schema ## `urls` (type: `array`): Domains or URLs, one per line (e.g. example.com or https://www.example.com/shop). Domains without scheme are tried with https:// first, then http://. Duplicates are removed. ## `timeoutSecs` (type: `integer`): Websites slower than this are skipped (not charged). ## `mode` (type: `string`): 'all' returns every website. 'delta' returns only websites whose detected technologies changed since the last run with the same input (e.g. a lead switched its CMS or shop system). ## `maxResults` (type: `integer`): Maximum number of analysed websites (= charged events) per run. Users on the Apify Free plan are limited to 50 results per run. ## `deltaStateName` (type: `string`): Name for the delta state, e.g. "lead-list-tech". Leave empty to derive it from the input. ## Actor input object example ```json { "urls": [ "apify.com", "wordpress.org", "shopify.com", "typo3.org", "astro.build" ], "timeoutSecs": 30, "mode": "all", "maxResults": 10000 } ``` # Actor output Schema ## `results` (type: `string`): No description # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = { "urls": [ "apify.com", "wordpress.org", "shopify.com", "typo3.org", "astro.build" ] }; // Run the Actor and wait for it to finish const run = await client.actor("friedl/tech-stack-detector").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = { "urls": [ "apify.com", "wordpress.org", "shopify.com", "typo3.org", "astro.build", ] } # Run the Actor and wait for it to finish run = client.actor("friedl/tech-stack-detector").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}") for item in client.dataset(run.default_dataset_id).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{ "urls": [ "apify.com", "wordpress.org", "shopify.com", "typo3.org", "astro.build" ] }' | apify call friedl/tech-stack-detector --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "type": "http", "url": "https://mcp.apify.com/?tools=fetch-actor-details,friedl/tech-stack-detector" } } } ``` The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer ` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations). ## OpenAPI specification Download the OpenAPI definition: https://api.apify.com/v2/actors/gE4FfsFfjc3R1EoUK/builds/pJvhm7RgoIsVCNL66/openapi.json