Software Alternatives & Reviews

W3C Markup Validation Service

Validates HTML markup of web pages, one at a time.

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W3C Markup Validation Service Alternatives

The best W3C Markup Validation Service alternatives based on verified products, community votes, reviews and other factors.
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  1. 15

    Site-wide Accessibility and HTML validation made easy. With a single click, Rocket Validator will check thousands of web pages on your site for Accessibility and HTML conformance, producing a detailed, actionable report on seconds.

    paid Free Trial $36.0 / Monthly (25,000 HTML checks/month, 1,000 docs/report, 5 requests/second)

  2. 11

    HTML Validator is a Mozilla extension that adds HTML validation inside Firefox and Mozilla.

  3. 14

    Total Validator can check your website to help ensure that it is accessible, uses valid HTML and CSS, has no broken links, and is free from spelling mistakes.

  4. 10

    Free tool for testing how good your website is, and what you can do to improve it. Check accessibility, SEO, social media, compliance and more.

  5. Automatically detect accessibility (a11y) issues on webpages

  6. GTmetrix is a free tool that analyzes your page's speed performance. Using PageSpeed and YSlow, GTmetrix generates scores for your pages and offers actionable recommendations on how to fix them.

  7. Scrutiny for Mac helps you manage and improve any number of websites. Link check, search, full website spell check, XML sitemap generator, SEO audit

  8. Plagiarism scanner that detects plagiarism in your text.

  9. A front end web development playground.

  10. HTML Email Check and Validation Tool

  11. Lighthouse is an open-source, automated tool for improving the quality of web pages.

  12. All-in-one browser extension to improve your web dev experience.

    paid $30.0 / One-off

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Categories: SEO, SEO Tools, Website Monitoring