Checker extension

A lightweight checker extension for developers, SEOs, and site owners to quickly audit on-page signals, content quality, and technical factors directly in a browsing context.

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About This Tool

The Checker Extension provides a real-time, page-level audit directly within your browser. It reads the live DOM to assess critical on-page signals such as title and meta description lengths, heading structure, image alt text, canonical tags, and the presence of structured data. Beyond basic signals, it evaluates content quality factors like duplicate content risk and internal linking balance. The tool returns a concise report with category scores, identified issues, and concrete fixes you can implement in your workflow. Conceptually, it operates locally in the browser, using heuristic rules to infer optimization opportunities without relying on server-side crawls. This makes it suitable for editors, marketers, and developers who need quick feedback during creation or revision cycles. Unique value lies in its real-time, privacy-conscious checks that align with common SEO best practices and content standards while remaining lightweight and fast. Core features include DOM-based validation, configurable rule sets, and the option to export results for integration with content pipelines. Use cases span authoring checks on drafts, pre-publish reviews of landing pages, and quick assessments of page quality on the go. The extension helps teams prioritize fixes by severity and impact, reducing back-and-forth and accelerating publish readiness.

How to Use

  1. Install the checker extension in your browser.
  2. Open a page to audit and click the extension icon to start the analysis.
  3. Choose the audit scope (on-page signals, content quality, structured data) and language if applicable.
  4. Run the audit to generate a structured report with scores and issues.
  5. Review the recommended fixes and implement changes in your page content or markup.
  6. Optional: export the audit as JSON or CSV for sharing or documentation.
How to use checker extension

Frequently Asked Questions

Find Quick Answers

What does the extension audit?
It analyzes on-page signals such as title and meta description lengths, heading structure, image alt text, canonical tags, and structured data presence, along with content quality signals to produce a concise page-level audit.
What inputs are required?
The extension reads the current page by default; you can customize checks by selecting scope (on-page signals, content quality, structured data) and language. Providing a URL is optional for saved or offline pages.
Is data shared or stored remotely?
All analysis is performed locally in the browser by default. Exports can be saved to local files; no data is transmitted unless you explicitly export to a remote service.
Can I export reports?
Yes. Reports can be exported in JSON or CSV formats for archival, sharing with teammates, or integration into content workflows.
How is this different from full SEO tools?
It focuses on fast, page-level checks during editing or publishing workflows, providing targeted guidance rather than a comprehensive site-wide crawl.

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