# Welcome to Rocket Validator!

> Canonical HTML version: https://rocketvalidator.com/docs
> Attribution: Rocket Validator (https://rocketvalidator.com)
> License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

<a href="https://rocketvalidator.com" target="_blank">Rocket Validator</a> is the tool used by professional web developers worldwide to quickly detect accessibility and HTML issues on large web sites, in an automated way.

In a nutshell, Rocket Validator is an automated accessibility scanner: just by submitting a starting URL our spider will discover the internal pages on that site, and check all the internal web pages found using the latest versions of three checking engines, giving you a detailed report in seconds.

* <a href="https://rocketvalidator.com/w3c-validator">W3C HTML Validator</a>
* <a href="https://rocketvalidator.com/axe-core">Axe Core</a>
* <a href="https://rocketvalidator.com/accesslint">AccessLint Core</a>

By <a href="https://rocketvalidator.com/registration/new" target="_blank">creating an account</a> at Rocket Validator, you can manage your site validation reports via the <a href="https://rocketvalidator.com/docs/quick-start">Web UI</a> or using our <a href="https://rocketvalidator.com/docs/api">JSON API</a>.

<img src="https://rocketvalidator.com/images/docs/report_summary.webp" alt="Summary Report" class="" style="margin-top: 15px;">