# Techstack Detector (`cerridwen/techstack-detector`) Actor Detect 7500+ technologies on any website. Identifies CMS, frameworks, CDNs, analytics, payment processors & more. Includes DNS/TLS analysis, security scoring, cost estimation & stack comparison. Powered by Wappalyzer + custom multi-layer detection. - **URL**: https://apify.com/cerridwen/techstack-detector.md - **Developed by:** [Cerridwen](https://apify.com/cerridwen) (community) - **Categories:** SEO tools, Lead generation, Developer tools - **Stats:** 31 total users, 13 monthly users, 100.0% runs succeeded, 1 bookmarks - **User rating**: No ratings yet ## Pricing $10.00 / 1,000 url analyses This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. 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. Actors are written with capital "A". ## 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. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## Tech Stack Detector API Detect the **complete technology stack** of any website — frameworks, CMS, CDN, hosting, analytics, payment systems, email providers, and 7000+ more technologies. ### What it does Given one or more URLs, this actor analyzes: 1. **Technology Fingerprinting** — Powered by the [Wappalyzer](https://github.com/AliasIO/wappalyzer) engine with 7500+ technology signatures. Detects frameworks, libraries, CMS, CDN, analytics, payment processors, and more from HTTP headers, HTML, cookies, script sources, DNS records, and meta tags. 2. **DNS Intelligence** — CNAME/A record analysis for CDN and hosting detection, MX records for email provider, TXT records for 30+ third-party service verifications (Stripe, Klaviyo, Zendesk, etc.), NS records for DNS provider. 3. **TLS Certificate Analysis** — Certificate issuer reveals CDN/hosting provider, protocol version, and certificate validity. 4. **Security Score** — Grades security headers (HSTS, CSP, X-Frame-Options, etc.) on a 0-100 scale and flags known vulnerable library versions. 5. **Cost Estimation** — Estimates monthly hosting/platform cost based on the detected stack. ### Use Cases - **Sales prospecting**: Know what tech a prospect uses before reaching out - **Competitive analysis**: Compare your stack vs competitors side-by-side - **Security audits**: Quick security header assessment for any website - **Lead generation**: Find companies using specific technologies - **Market research**: Understand technology adoption in your industry ### Input | Field | Type | Default | Description | |-------|------|---------|-------------| | `urls` | string[] | *required* | URLs to analyze (max 10) | | `enableDns` | boolean | `true` | Run DNS analysis (CDN, hosting, email, verifications) | | `enableTls` | boolean | `true` | Run TLS certificate analysis | | `enableSecurityScore` | boolean | `true` | Calculate security score (0-100) | | `enableCostEstimate` | boolean | `true` | Estimate monthly cost | | `compareMode` | boolean | `false` | Compare stacks across multiple URLs | | `maxUrls` | integer | `10` | Max URLs per run | #### Example Input ```json { "urls": ["https://shopify.com", "https://notion.so"], "enableDns": true, "enableTls": true, "enableSecurityScore": true, "enableCostEstimate": true, "compareMode": true } ```` ### Output Each URL produces a detailed result: ```json { "url": "https://www.shopify.com/", "technologies": [ { "name": "Shopify", "category": "Ecommerce", "version": null, "confidence": 100, "source": "wappalyzer" }, { "name": "Cloudflare", "category": "CDN", "version": null, "confidence": 100, "source": "wappalyzer" }, { "name": "Stripe", "category": "Payment processors", "version": null, "confidence": 100, "source": "wappalyzer" }, { "name": "Google Workspace", "category": "Webmail", "version": null, "confidence": 100, "source": "wappalyzer" }, { "name": "Zendesk", "category": "Documentation", } ], "totalTechnologies": 14, "robotsTxt": { "exists": true, "sitemaps": ["https://www.shopify.com/sitemap.xml"] }, "pwa": { "isPwa": false }, "securityTxt": { "exists": true, "contact": "mailto:security@shopify.com", "expires": "2026-12-31T23:59:59z" }, "waf": { "firewalls": ["Cloudflare WAF"] }, "httpProtocols": { "http2": true, "http3": true }, "dns": { "cdn": "Cloudflare", "emailProvider": "Google Workspace", "hosting": "Shopify", "nameserver": "Shopify DNS", "verifications": [ "Adobe", "Amazon SES", "Apple", "Atlassian", "DocuSign", "Facebook/Meta", "Google Search Console", "Klaviyo", "Microsoft 365", "OpenAI", "SendGrid", "Stripe", "Twilio", "Zapier", "Zendesk", "DKIM" ], "dmarcPolicy": "reject", "caa": [ "issue=globalsign.com", "issue=letsencrypt.org", "issue=sectigo.com" ] }, "tls": { "issuer": "Google Trust Services", "protocol": "TLSv1.3", "subject": "shopify.com", "validFrom": "Feb 14 16:30:43 2026 GMT", "validTo": "May 15 17:30:36 2026 GMT", "cipher": "TLS_AES_128_GCM_SHA256", "cipherStrength": "adequate", "cipherBits": 128, "daysUntilExpiry": 67, "expiryWarning": null }, "securityScore": { "score": 35, "grade": "D", "headers": { "HSTS": true, "CSP": true, "X-Frame-Options": false, "X-Content-Type-Options": false, "X-XSS-Protection": false, "Referrer-Policy": false, "Permissions-Policy": false, "COOP": false, "CORP": false, "COEP": false }, "headersPresent": 2, "headersTotal": 10, "vulnerabilities": [], "cspIssues": ["CSP allows unsafe-inline", "CSP allows unsafe-eval"], "cookieSecurity": { "totalCookies": 2, "secureCookies": 2, "httpOnlyCookies": 1, "sameSiteCookies": 1 }, "informationDisclosure": ["Server header leaks info"] }, "costEstimate": { "currency": "USD", "monthly": "$54-412/mo", "breakdown": { "cdn": { "services": [{ "name": "Cloudflare", "min": 0, "max": 200 }], "min": 0, "max": 200 }, "email": { "services": [{ "name": "Google Workspace", "min": 6, "max": 18 }], "min": 6, "max": 18 }, "platform": { "services": [{ "name": "Shopify", "min": 29, "max": 79 }], "min": 29, "max": 79 }, "payment": { "services": [{ "name": "Stripe", "min": 0, "max": 0, "note": "2.9% + $0.30/txn" }], "min": 0, "max": 0 }, "support": { "services": [{ "name": "Zendesk", "min": 19, "max": 115 }], "min": 19, "max": 115 } } }, "scannedAt": "2026-03-15T21:15:36.210952+00:00" } ``` #### Compare Mode When `compareMode` is enabled with multiple URLs, each result also includes: ```json { "comparison": { "common": ["Cloudflare", "Open Graph", "React"], "unique": { "https://shopify.com": ["Shopify", "Stripe", "Zendesk"], "https://notion.so": ["Next.js", "Vercel", "hCaptcha"] }, "totalUrls": 2 } } ``` ### What Makes This Different | Feature | This Actor | BuiltWith | Wappalyzer | |---------|-----------|-----------|------------| | Technology detection | 7500+ fingerprints | ✅ | ✅ | | DNS intelligence | ✅ 30+ services | ❌ | ❌ | | Email & TXT verification | ✅ Stripe, DKIM, DMARC, etc. | ❌ | ❌ | | TLS analysis | ✅ Expiry warnings, Cipher suite | ❌ | ❌ | | Security scoring | ✅ 0-100 grade (CSP, Cookies, Vulns) | ❌ | ❌ | | Cost estimation | ✅ 30+ SaaS tool pricing | ❌ | ❌ | | Deep probes | ✅ PWA, WAF, robots.txt, HTTP/2-3 | ❌ | ❌ | | Stack comparison | ✅ | ❌ | ❌ | | Price | Pay per use | $295/mo | $450/mo | ### Technology - **Detection engine**: [wappalyzer-next](https://github.com/s0md3v/wappalyzer-next) with up-to-date fingerprints - **HTTP client**: `curl_cffi` with Chrome impersonation (bypasses Cloudflare and bot protection) - **Session management**: Automatic connection reuse and exponential backoff retry logic - **DNS analysis**: Custom multi-record analysis (A, CNAME, MX, TXT, NS, CAA) - **Async processing**: Concurrent URL analysis for fast batch scans # Actor input Schema ## `urls` (type: `array`): List of website URLs to detect technology stacks. Max 10 URLs per run. ## `enableDns` (type: `boolean`): Analyze DNS records (CNAME, MX, TXT) to detect CDN, email provider, and hosting. ## `enableTls` (type: `boolean`): Analyze TLS certificate to detect certificate issuer and CDN provider. ## `enableSecurityScore` (type: `boolean`): Calculate a security score (0-100) based on HTTP security headers and known vulnerabilities. ## `enableCostEstimate` (type: `boolean`): Estimate monthly hosting/platform cost based on detected technologies. ## `compareMode` (type: `boolean`): When analyzing multiple URLs, show common and unique technologies across all sites. ## `maxUrls` (type: `integer`): Maximum number of URLs to analyze in a single run. ## Actor input object example ```json { "urls": [ "https://shopify.com" ], "enableDns": true, "enableTls": true, "enableSecurityScore": true, "enableCostEstimate": true, "compareMode": false, "maxUrls": 10 } ``` # Actor output Schema ## `results` (type: `string`): Dataset containing detected technologies, DNS analysis, TLS certificate info, security score, and cost estimate for each URL. # 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": [ "https://shopify.com" ] }; // Run the Actor and wait for it to finish const run = await client.actor("cerridwen/techstack-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": ["https://shopify.com"] } # Run the Actor and wait for it to finish run = client.actor("cerridwen/techstack-detector").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).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": [ "https://shopify.com" ] }' | apify call cerridwen/techstack-detector --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=cerridwen/techstack-detector", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "Techstack Detector", "description": "Detect 7500+ technologies on any website. Identifies CMS, frameworks, CDNs, analytics, payment processors & more. Includes DNS/TLS analysis, security scoring, cost estimation & stack comparison. Powered by Wappalyzer + custom multi-layer detection.", "version": "1.0", "x-build-id": "c8EzaPrTZYwYjsvQu" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/cerridwen~techstack-detector/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-cerridwen-techstack-detector", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/cerridwen~techstack-detector/runs": { "post": { "operationId": "runs-sync-cerridwen-techstack-detector", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/cerridwen~techstack-detector/run-sync": { "post": { "operationId": "run-sync-cerridwen-techstack-detector", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "required": [ "urls" ], "properties": { "urls": { "title": "URLs to Analyze", "type": "array", "description": "List of website URLs to detect technology stacks. Max 10 URLs per run.", "items": { "type": "string" } }, "enableDns": { "title": "Enable DNS Analysis", "type": "boolean", "description": "Analyze DNS records (CNAME, MX, TXT) to detect CDN, email provider, and hosting.", "default": true }, "enableTls": { "title": "Enable TLS Analysis", "type": "boolean", "description": "Analyze TLS certificate to detect certificate issuer and CDN provider.", "default": true }, "enableSecurityScore": { "title": "Enable Security Score", "type": "boolean", "description": "Calculate a security score (0-100) based on HTTP security headers and known vulnerabilities.", "default": true }, "enableCostEstimate": { "title": "Enable Cost Estimate", "type": "boolean", "description": "Estimate monthly hosting/platform cost based on detected technologies.", "default": true }, "compareMode": { "title": "Compare Mode", "type": "boolean", "description": "When analyzing multiple URLs, show common and unique technologies across all sites.", "default": false }, "maxUrls": { "title": "Max URLs", "minimum": 1, "maximum": 10, "type": "integer", "description": "Maximum number of URLs to analyze in a single run.", "default": 10 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```