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HTML SEO Analyzer
Paste page HTML and inspect title, description, canonical, robots, headings, images and structured data locally.
- 100% local
- Instant
- Free
- No account
- Works offline
- Clipboard
HTML code
SEO report
Why use this tool?
Analyze the SEO signals present in a page’s HTML directly in your browser. The tool inspects essential markup without crawling the website or sending the source to a remote service.
Smart processing
Create and verify web content with settings designed for usable results.
Supported formats
Web formats, metadata, and structured content depending on the available features.
Save time
Get a clean, ready-to-use result in seconds without installing software or configuring a complex workflow.
Fonctionnement
How does this tool work?
The browser parses the pasted HTML into a local document and inspects both head metadata and visible structure. The report covers title, meta description, canonical URL, robots directives, heading hierarchy, images without alt attributes and JSON-LD blocks. This is a static analysis of the supplied markup, so no remote request or external JavaScript rendering is performed.
Use cases
Pre-publish review
Check a new landing page or template for missing metadata and structural SEO issues before deployment.
Template debugging
Compare generated HTML from different templates and quickly spot duplicated headings or absent canonical tags.
Private environments
Inspect staging or intranet HTML without uploading confidential source code to an external SEO platform.
Guide
How to use this tool
- 1
Paste the HTML
Copy the source or rendered HTML that you want to inspect.
- 2
Run the analysis
The browser scans the relevant SEO elements locally and builds a structured report.
- 3
Review the findings
Use the report to identify missing, duplicated or questionable signals before publication.
Tips and best practices
- Prefer the final HTML actually delivered to users and crawlers.
- A clear heading hierarchy is easier to maintain and audit.
- Check missing alt attributes separately from intentionally empty decorative alt text.
Frequently asked questions
Does it visit my website?
No. It only analyzes the HTML you paste and makes no request to the target website.
Does it execute page JavaScript?
No. Dynamic content must already be present in the HTML you provide if you want it included in the analysis.
Is this a full crawler?
No. It is a page-level local inspector designed to complement larger crawl and server-response audits.
Was this tool useful?
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