SEO & HTTP Headers

Analyzes HTTP headers, SEO elements, page structure, links, performance metrics, and content optimization for any webpage.

As of June 2026, SEO & HTTP Headers has 29 users in the Developer Tools category.

Developer Tools

Chrome Web Store ↗.crx

Users+7.4%

Rating0%

—

— reviews

Reviews0%

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Version

1.0.1

Manifest V3

History

5 snapshots

Tracking since Apr 18, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 18, 2026	27	—	—	1.0.1
Apr 28, 2026	29	—	—	1.0.1
May 9, 2026	30	—	—	1.0.1
May 22, 2026	31	—	—	1.0.1
Jun 4, 2026	33	—	—	1.0.1
Now	29	—	—	1.0.1

Permissions & access

Permissions: activeTabscripting
Host access: <all_urls>

Screenshots

About

Comprehensive SEO and HTTP headers analyzer for web developers and SEO specialists. Instantly analyze any webpage for:

- HTTP Headers - Security headers (CSP, HSTS, X-Frame-Options), cache control, and all response headers
- On-Page SEO - Meta tags, title, description, canonical URLs, Open Graph, structured data (JSON-LD), and hreflang tags
- Content Analysis - Heading structure (H1-H6), keyword extraction, word count, and text-to-HTML ratio
- Links - Internal/external link detection with follow/nofollow classification and filtering
- Images - Alt text validation, dimensions, and missing attributes detection
- Performance - Page load metrics, DOM timing, and cache optimization insights

Works completely offline with no external dependencies. All analysis happens instantly in your browser. Perfect for quick SEO audits, technical analysis, and website optimization.