API · checking…

AI web crawling,
built for SEO.

Turn any URL into clean markdown, structured data, and SEO-ready insights. Self-hosted, unlimited.

Try Playground → Read Docs
Features

Everything you need to crawl the modern web

JavaScript-heavy sites, SPAs, paywalls — handled.

AI Extraction

Use any LLM — OpenAI, Anthropic, Gemini, or local — to pull structured data from pages without writing XPath.

Clean Markdown

Strip ads, nav, and boilerplate. Output is ready for RAG, embeddings, or LLM context windows.

Real Browser

Headless Chromium renders JavaScript, handles cookies, scrolls lazy-load — same as a user.

SEO Native

Entity extraction, schema detection, content structure analysis — built for modern search and GEO.

Workflow

How it works

Three steps from URL to structured data.

1. Paste URL

Any public page — including JS-heavy SPAs, paginated lists, and sites that block naive scrapers.

2. Pick output

Clean markdown, HTML, screenshot, or AI-extracted JSON matching a schema you define.

3. Use the data

Pipe into a RAG vector store, SEO audit report, price tracker, or LLM context — whatever you're building.

Use cases

What people build with SEO4Life

RAG

Training & retrieval data

Feed clean markdown from docs sites, blogs, and internal wikis into your embeddings pipeline. No HTML noise.

SEO

Competitor audits

Extract schema, headings, entities, and content gaps across competitor SERPs. Faster than traditional crawlers.

Commerce

Price & stock monitoring

Track product pages across retailers. LLM extraction handles schema changes without breaking scrapers.

Research

Knowledge aggregation

Pull research papers, news articles, and forum threads into a structured dataset your team can query.

Agents

Web-browsing AI

Give agent frameworks a reliable way to read the web. Returns clean tokens instead of DOM soup.

Archival

Content snapshotting

Snapshot sites for legal, compliance, or journalism. Markdown + screenshot + structured data in one call.

Try the API

One endpoint, clean output

Swap in any URL, get structured data back.

# Crawl any URL, get clean markdown
curl -X POST https://seo4.life/md \
 -H 'Content-Type: application/json' \
 -d '{"url":"https://example.com"}'
FAQ

Common questions

Is SEO4Life free?
Yes — it's self-hosted on my infrastructure and free to use via the Playground. Bring your own LLM API keys for extraction jobs, or use the built-in defaults.
How is this different from Screaming Frog?
Screaming Frog crawls, parses, and reports on a site for SEO audits. SEO4Life focuses on the data extraction layer — turning one URL or many into LLM-ready markdown and AI-extracted JSON. They complement each other: audit with Screaming Frog, extract content with SEO4Life.
Does it respect robots.txt?
Yes by default. You can override for authorized crawls, but the sensible defaults stay on your side of the line.
Can I use my own LLM provider?
Yes. OpenAI, Anthropic, Gemini, DeepSeek, Groq, Together, Mistral — all supported. Set the API key, pick the model, done.
What about dynamic JavaScript sites?
SEO4Life uses a real headless Chromium browser. JavaScript executes, lazy content loads, cookies persist. You get the same DOM a human would.
Can I install it as an app on my phone?
Yes — this is a PWA. Tap the install button above, or "Add to Home Screen" in your mobile browser menu.