# SEO Lens

See every meta tag on a page, and fix the structured data that decides how you show up.

Chrome extension that shows every meta tag on any page and audits its JSON-LD, naming what is missing and handing you copy-ready markup — so Google and agents like ChatGPT and Claude can read your site. Free, no account.

**Status:** live
**Category:** extension
**Price:** Free & open source
**Platforms:** Chrome
**Tags:** Chrome Extension, SEO, TypeScript, Effect-TS

![SEO Lens](https://lxbpjvrr41.ufs.sh/f/6KZjuRTQYJxHtjDFlAzH6ciESV8PasdW2jmf5AGgXRIexqOo)

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SEO Lens shows every meta tag on the page you are on, and what your structured data is missing. It scores the page out of 100 against 30+ rules, from title and headings to social previews, images and indexing. The audit runs in under 150ms, in the tab, with no account and no cloud crawl.

Where the JSON-LD is thin or missing, it names the gap and gives you copy-ready markup.

It is the check for whether your site is reachable — not just by Google, but by the agents that now read the web for people. Both take the page as markup, so a gap in the markup is a gap in what they see.

Every finding copies out as structured text; full audits export as Markdown or JSON, ready to paste into Claude Code or Cursor.

No data collection.

## Links

- Product page: https://andrey-markin.com/products/seo-lens
- All products: https://andrey-markin.com/products.md
- Install from Chrome Web Store: https://chromewebstore.google.com/detail/seo-lens-%E2%80%94-seo-audit-for/aoaaiadojdhkpjjaenohoehlhldkejcb
- GitHub: https://github.com/Mark-Life/seo-lens
- Visit Site: https://www.seo-lens.dev
- Contact: https://andrey-markin.com/#contact