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HTML Validator VS W3C Markup Validation Service

Compare HTML Validator VS W3C Markup Validation Service and see what are their differences

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HTML Validator logo HTML Validator

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

W3C Markup Validation Service logo W3C Markup Validation Service

Validates HTML markup of web pages, one at a time.
  • HTML Validator Landing page
    Landing page //
    2019-06-07
  • W3C Markup Validation Service Landing page
    Landing page //
    2019-08-30

HTML Validator

Categories
  • SEO
  • SEO Tools
  • Website Monitoring
  • Accessibility
Website users.skynet.be
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W3C Markup Validation Service

Categories
  • SEO
  • SEO Tools
  • Website Monitoring
  • Accessibility
Website validator.w3.org
Edit details

HTML Validator videos

+ Add

Let's have a look at CSE HTML Validator Lite

More videos:

  • Demo - CSE HTML Validator Professional quick demo

W3C Markup Validation Service videos

+ Add

A Walkthrough the W3C Markup Validation Service

Category Popularity

0-100% (relative to HTML Validator and W3C Markup Validation Service)

HTML Validator

W3C Markup Validation Service

SEO
27 27%
SEO
73% 73
SEO Tools
32 32%
SEO Tools
68% 68
Website Monitoring
37 37%
Website Monitoring
63% 63
Accessibility
49 49%
Accessibility
51% 51

User comments

Share your experience with using HTML Validator and W3C Markup Validation Service. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, W3C Markup Validation Service seems to be more popular. It has been mentiond 95 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

HTML Validator mentions (0)

We have not tracked any mentions of HTML Validator yet. Tracking of HTML Validator recommendations started around Mar 2021.

W3C Markup Validation Service mentions (95)

  • What is cross-browser compatibility, and why should you care?
    Validate Your Code Include tools like W3C code validation service and CSS validator to ensure your code meets web standards. - Source: dev.to / 21 days ago
  • What You Need to Know About Domain and Hosting
    ===> Click here to run your code through the HTML validator. - Source: dev.to / 4 months ago
  • Is my code good ?I'm a beginner
    Try looking at tools like https://validator.w3.org/. Source: 4 months ago
  • Searching for the *old* W3C XHTML/CSS validator or something of equivalent functionality
    I'm looking for either that specific validator (older version of https://validator.w3.org/) or an equivalent that can validate pre-HTML5 (DTD-based) files in a similar fashion. I would appreciate any pointers in the right direction. Thanks in advance. Source: 10 months ago
  • Is there an addon that will allow me to see CSS errors in the HTML and CSS?
    Not an addon, but maybe it helps Https://validator.w3.org/. Source: 11 months ago
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What are some alternatives?

When comparing HTML Validator and W3C Markup Validation Service, you can also consider the following products

Rocket Validator - 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.

Total Validator - 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.

Nibbler - 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.

PageSpeed Insights - PageSpeed is addon for ...

FreePlagiarismChecker - Plagiarism scanner that detects plagiarism in your text.

GTmetrix - 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.

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