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How Modern Website Theme & CMS Detectors Fingerprint 40+ Web Frameworks, WordPress Plugins & AI Stacks in Real Time

#webdev #wordpress #seo #ai

GrowthNiq Web Technology Intelligence Suite

When auditing a competitor's website, evaluating a client's legacy stack, or researching how top-ranking domains are architected, developers and SEO engineers typically ask the same three questions:

  1. What CMS, theme, plugins, or frontend framework is this website actually running?
  2. Which live websites across the web are using a specific WordPress theme or plugin at scale?
  3. Which AI coding agents, Model Context Protocol (MCP) servers, and LLM routers are actively maintained and reachable today?

Most legacy lookup tools put basic stack inspections behind strict daily paywalls or only check a single regex against /wp-content/themes/. To solve this, we built GrowthNiq - a 100% free, no-signup Web Technology Intelligence Platform.

1. Deep-Packet Website Theme, CMS & Technology Detector

Live Tool: https://growthniq.com/theme-detector/

Instead of relying on a single stylesheet check, the GrowthNiq Website Theme Detector runs a multi-layer inspection pipeline across HTTP response headers, DOM script signatures, asset manifest footprints, DNS records, and TLS 1.3 handshakes:

  • WordPress Theme & Child Theme Fingerprinting: Parses active style.css headers (Theme Name, Template, Version, Author URI) to distinguish custom child themes from parent frameworks like Astra, GeneratePress, Kadence, Hello Elementor, Avada, Divi, Bricks, and Blocksy.
  • Active WordPress Plugin Detection: Identifies frontend and REST API footprints for SEO plugins (Rank Math, Yoast SEO, AIOSEO), caching layers (LiteSpeed Cache, WP Rocket, FlyingPress), e-commerce (WooCommerce), and page builders (Elementor, Bricks, Beaver Builder).
  • Shopify Theme Detector: Inspects Shopify.theme runtime objects and CDN asset paths to detect themes such as Dawn, Impulse, Prestige, Symmetry, Warehouse, and Ella, alongside installed Shopify apps.
  • 40+ Custom CMS & JS Frameworks: Detects Next.js (/_next/static/, __NEXT_DATA__), Nuxt, Astro, SvelteKit, Remix, Laravel, Magento / Adobe Commerce, Adobe Experience Manager (AEM), Webflow, Ghost, Drupal, Wix, Squarespace, and Framer.
  • Infrastructure, DNS & HTTP Security Grading: Resolves live A, AAAA, MX, TXT, and NS records, identifies the edge CDN/WAF (Cloudflare, Fastly, AWS CloudFront, Vercel, LiteSpeed), and grades HTTP security headers (Strict-Transport-Security, Content-Security-Policy, X-Content-Type-Options, X-Frame-Options).

2. Reverse WordPress Theme & Plugin Websites Finder (110M+ Domains)

Live Tool: https://growthniq.com/theme-websites-finder/

Need real-world production examples of websites built with a specific WordPress theme or plugin? Or building an agency outreach list?

With the WordPress Theme & Plugin Websites Finder, you can search by:

  • Keyword or Slug (e.g., Astra, Divi, Avada, GeneratePress, Elementor, WooCommerce)
  • ThemeForest or WordPress.org URL
  • Any Live WordPress Domain

It returns verified active installation counts, official WordPress.org / ThemeForest ratings, version metadata, and an interactive directory of live websites that you can export directly to CSV for free.

3. Verified AI Tools, LLMs, Coding Agents & MCP Directory (221+ Tools)

Live Directory: https://growthniq.com/ai-tools/

The AI developer ecosystem moves fast, and many directories are cluttered with dead links. The GrowthNiq AI Tools & Agents Directory curates 221+ verified AI tools across 11 specialized stack categories, complete with a live HTTP 200 URL Verifier:

  1. Foundation LLMs & Assistants (ChatGPT, Claude, Google Gemini, DeepSeek, Grok, Meta Llama, Qwen)
  2. AI Coding Agents & IDEs (Cursor, Claude Code, Windsurf, Cline, Roo Code, Aider, Devin, v0, Bolt.new, Lovable)
  3. Model Context Protocol (MCP) Servers & Sandboxes (Smithery, Official MCP Servers, Glama MCP, E2B, Firecrawl MCP, Context7)
  4. Multi-Agent Frameworks & SDKs (LangGraph, CrewAI, Microsoft AutoGen, OpenAI Agents SDK, LlamaIndex, PydanticAI, Mastra)
  5. LLM Gateways, Routers & Observability (OpenRouter, LiteLLM, Portkey, Helicone, Langfuse, Braintrust)
  6. Workflow & Automation Builders (n8n, Make, Dify, Flowise, Langflow, Gumloop, Activepieces)
  7. Browser Use & Web Scraping Agents (Browser Use, Stagehand, Firecrawl, Crawl4AI, Skyvern, Jina Reader)
  8. AI Search Engines & Deep Research (Perplexity AI, Exa, Tavily, Phind, Consensus, Elicit)
  9. Cloud GPU, Inference & Vector Databases (Together AI, Groq, Fireworks AI, Modal, RunPod, Pinecone, Qdrant)
  10. Voice, Video, Image & Multimodal Studios (ElevenLabs, Midjourney, Runway, Suno, Kling AI, HeyGen)
  11. AI Support, Sales & GTM Operations (Fin by Intercom, Sierra, Relevance AI, Clay, Harvey AI)

Try the Full Suite (100% Free, No Login Required)

Have a tricky custom domain or headless CMS you want to test against our fingerprinting engine? Drop the URL in the comments!

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