Rocket Blog

HTML Validator Upgraded to W3C Validator 24.12

2024-12-23 by Jaime Iniesta

• changelog
• html

We've upgraded our HTML Validator servers to use the latest version of the W3C Validator Nu.

How to get the raw Axe Core and W3C Validator results via the Rocket Validator API

2024-11-04 by Jaime Iniesta

• api
• axe-core
• w3c-validator
• html
• a11y

The new raw checks API endpoint allows you to access the raw, unprocessed Axe Core and W3C Validator results for your web page HTML and accessibility checks.

HTML Validator Upgraded to W3C Validator 24.7

2024-07-31 by Jaime Iniesta

• changelog
• html

We've upgraded our HTML Validator servers to use the latest version of the W3C Validator Nu.

HTML Validator Upgraded to W3C Validator 24.3

2024-03-27 by Jaime Iniesta

• changelog
• html

We've upgraded our HTML Validator servers to use the latest version of the W3C Validator Nu.

HTML Validator Upgraded to W3C Validator 23.3

2023-03-15 by Jaime Iniesta

• changelog
• html

We've upgraded our HTML Validator servers to use the latest version of the W3C Validator Nu.

HTML Checker upgraded to W3C Validator Nu 20.6

2020-06-30 by Jaime Iniesta

• html
• w3c-validator
• changelog

The HTML validation server has been upgraded to the latest version released of Validator.nu by the W3C, which adds some fixes and improvements related with checking CSS, SVG, and ARIA.

HTML Checker upgraded to W3C Validator Nu 20.3

2020-03-16 by Jaime Iniesta

• html
• w3c-validator
• changelog

The HTML validation server has been upgraded to version 20.3 of Validator.nu by the W3C, which adds some fixes and improvements related with checking CSS, SVG, and ARIA.

Chrome extensions for HTML validation

2019-12-01 by Jaime Iniesta

• html
• tools
• chrome-extensions
• w3c-validator

Chrome extensions offer a great way to extend your browser with tools that help you in your daily job as a web developer. In this article we analyze the most popular extensions that help you with HTML validation directly from your browser.

What to do if you disagree about a checking report

2019-04-12 by Jaime Iniesta

• html
• accessibility
• w3c-validator
• axe-core

Our mission at Rocket Validator is help you quickly check web pages in your large site, but we're mere messengers between you and the checkers. What to do if you disagree with the checking results?

How to fix your validation issues?

2018-06-15 by Jaime Iniesta

• html
• w3c-validator

While most of the users of Rocket Validator are web professionals, freelancers and web studios, there are also many other users that come to our site in search for a fix for their HTML validation errors.

Have you been blocked by the W3C Validator?

2018-04-01 by Jaime Iniesta

• html
• w3c-validator

Have you ever tried to validate a web page at the W3C validator and faced a warning message about Excessive traffic pattern blocked. If you have, you've been banned. Learn why this happens (there's a good reason!), and how to avoid it.

W3C Validator is dead, long live Validator.nu!

2017-07-11 by Jaime Iniesta

• html
• w3c-validator

It may not be apparent, but the W3C HTML Validator that we've been using all these years, yes, the one at validator.w3.org, is dead. But, there's a faster, more modern and more robust validator also maintained by the W3C.