Sada Files
  1. 1Choose file
  2. 2Adjust
  3. 3Download

Check a public page

Enter a URL in the settings and run the check. Our server fetches the page through an SSRF-safe fetcher, analyses it in memory and stores nothing.

Fetched by our server — public addresses only, nothing stored or logged.

On-Page SEO Health Auditor online, free

Comprehensive audit of 45+ on-page SEO signals: title length, meta description, H1-H6 headings, canonicals, alt tags, Open Graph, schema, and robots directives.

  • Runs in your browser — no upload
  • Free, no sign-up, no watermark
  • HTML
  • TXT
How to use On-Page SEO Health Auditor · On-Page SEO Health Auditor — frequently asked questions

How to use On-Page SEO Health Auditor

  1. 1

    Add your HTML and TXT file

    Drop a file on the page, paste it, or click Select Files. Nothing is uploaded — it opens straight in your browser.

  2. 2

    Fine-tune the settings

    Set source mode in the Fine-tune panel, or keep the defaults — they suit most files.

  3. 3

    Run On-Page SEO Health Auditor

    Press the start button. Processing happens on your device, usually in seconds.

  4. 4

    Download the result

    Save the finished file, or continue with another tool without downloading in between.

What On-Page SEO Health Auditor can do

  • Source Mode: url and paste
  • Private by design — files are processed in your browser and never uploaded
  • Free with no sign-up, no watermark and no daily limit

On-Page SEO Health Auditor — frequently asked questions

What on-page ranking signals does this tool audit?

The auditor checks over 45 technical and content signals including title tag length and relevance, meta descriptions, H1-H6 heading hierarchy, canonical tag configuration, image alt tags, Open Graph and Twitter Card tags, JSON-LD structured data, mobile viewport, and search engine robots directives.

Can I audit HTML source code before deploying to production?

Yes. Use the Paste mode tab to input any raw HTML or staging template markup. The tool audits all on-page factors directly in your browser without requiring a live public URL.

How is the SEO health score calculated?

The score ranges from 0 to 100 based on the severity of identified issues. Critical defects (such as missing titles, duplicate H1s, or broken canonicals) apply heavy penalties, while minor recommendations (such as optimal meta description length) apply minor adjustments.

Does this tool crawl external links or third-party resources?

No. The audit examines the immediate target page and its embedded markup. External links and internal navigation anchors are checked for relative consistency without recursive web crawling.

Does Sada Files retain or log the URLs or code audited?

No. In accordance with the Sada Files Privacy Promise, all URL scans are processed ephemerally in volatile memory without logging target domains, IP addresses, or audited source code.

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