This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change · Show sourceoutlineimage reporterrors & warnings onlycheck error pagesUser-Agent Accept-Language

This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change · Show sourceoutlineimage reportcheck error pagesUser-Agent Accept-Language

LMVTFY: Let Me Validate That For ... HTTP service, similar to validator.w3.org/nu, for browser-based checking of HTML documents, CSS stylesheets, and SVG images over the Web....

Serving valid HTML nowadays have been commonly overlooked these days. By running the HTML documents through a checker, it’s easier to catch unintended mistakes which might have otherwise been missed. Adhering to the W3C’s standards has a lot to offer to both the developers and the web users: It provides better browser compatibility, helps to avoid potential problems with accessibility/usability, and makes it easier for future maintenance. The Nu Html Checker(v.Nu) serves as the backend of html5.validator.nu, and validator.w3.org/nu.

If you want to create you own alternative mode of input or want to call Validator.nu (or your own local copy) from within your own application, there is a RESTful Web service API. In addition to the modes of input that work from HTML forms, you can also POST the document to be checked as an ...

This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change · Show sourceoutlineimage reportcheck error pagesUser-Agent Accept-Language

December 29, 2016 - Validator.nu can be called as a Web service. Input and output modes can be chosen completely orthogonally.

Supports HTML5, SVG 1.1, MathML 3.0, ITS 2.0, RDFa Lite 1.1. Implementation is based on Validator.Nu.

December 30, 2016 - HTML5 validator using validator.nu, but not remotely. Latest version: 2.2.2, last published: 9 years ago. Start using validator-nu in your project by running `npm i validator-nu`. There are 2 other projects in the npm registry using validator-nu.

This tool is an ongoing experiment in better HTML checking, and its behavior remains subject to change · About this checker • Report an issue • Version: 22.3.8

The Nu Html Checker should not be used as a means to attempt to unilaterally enforce pass/fail conformance of documents to any particular specifications; it is intended solely as a checker, not as a pass/fail certification mechanism.

Nu Html Checker (vnu) – Helps you catch problems in your HTML/CSS/SVG - The Nu Html Checker (vnu)

Latest version of nu.validator:validator · https://javadoc.io/doc/nu.validator/validator · Current version 26.3.10 · https://javadoc.io/doc/nu.validator/validator/26.3.10 · package-list path (used for javadoc generation -link option) https://javadoc.io/doc/nu.validator/validator/26.3.1...

Maven plugin to validate HTML / CSS / SVG files with the NU HTML Checker (v.NU, https://validator.github.io/validator/)

December 23, 2020 - ↩ ↩ ↩ For further guidance, consult Declaring the overall language of a page and Choosing language tags.If the HTML checker has misidentified the language of this document, please file an issue report or send e-mail to report the problem. Erro...

No, it is not new. End tags for those elements have been optional since the first version of HTML. The nu validator has got that part of the spec right for as long as I have been using it (as has the previous, DTD based, validator).

<?xml version="1.0" encoding="UTF-8"?> <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <modelVersion>4.0.0</modelVersion> <groupId>nu.validator</groupId> <artifactId>validator</artifactId> <version>26.3.24</version> <name>The Nu Html Checker (vnu)</name> <description>An HTML-checking library (used by https://validator.w3.org/nu/)</description> <url>https://validator.github.io/validator/</url> <licenses> <license> <name>The MIT License</nam