Start validating now.

Find the hidden invalid pages in your large sites in seconds.


Basic Monthly plan

  • 25,000 checks / month
  • 1,000 docs / report
  • 5 requests / second
  • Standard priority checks
  • HTML checks
  • No accessibility checks
  • No muting rules
  • No schedules
  • Validation charts
  • Reports stored for 30 days


Pro Monthly plan

  • 50,000 checks / month
  • 5,000 docs / report
  • 15 requests / second
  • High priority checks
  • HTML checks
  • Accessibility checks
  • Muting rules
  • Scheduled reports
  • Validation charts
  • Reports stored for 90 days

Only need to check a few days? Check out the weekly plans.
Pay yearly to get 2 months free with the yearly plans.

Need more? Check out the Enterprise Plans for the largest capacity accounts.

How do checks work?

A "check" means an automated HTML or Accessibility check of a given web page. For example, if you submit a site to be checked for HTML and Accessibility and you set the report to 100 web pages, then we'll perform 200 checks for you (100 web pages, 2 checks on each page).

Usage of your Rocket Validator account is measured in checks. When you subscribe to a plan, you can request a maximum number of checks for a period depending on the plan. For example, the Pro Weekly plan lets you request up to 12,500 checks per week.

Check limits reset automatically depending on the subscription plan period: Weekly plans are reset every 7 days, while Monthly and Yearly plans are reset every 30 days.

What is the difference between Basic, Pro and Enterprise plans?

When you subscribe to a plan, you get immediate access to all of its features. The main difference between Basic and Pro / Enterprise subscriptions is that in Basic you can only check for HTML issues, while in Pro and Enterprise subscription accounts you can also scan for accessibility issues, and have access to advanced features like scheduling and muting.

Can I cancel or change plans any time?

Yes, all plans work as recurring subscriptions, and you decide if you want to renew weekly, monthly or yearly. You can cancel your subscription any time, and your subscription will be valid until its end date, you won't be charged after it ends.

Can I subscribe to more than one plan?

Yes, plans work like packages and you can get as many as you need. For example, you can subscribe to a Pro Monthly plan and it will give you a sustained capacity of 50,000 checks per month. Then let's say you have a lot of client work to check during a given week, you can subscribe to an additional Pro Monthly plan and have your capacity increased to 100,000 checks during that month.

What our users say...

Web studios and freelance developers from all around the world use Rocket Validator to validate accessibility and HTML conformance on their sites as part of their web development process. Our service helps them quickly identify the parts of their sites that need more attention, so they can be fixed and re-checked until they're valid.

Stephen Livesey

Stephen Livesey

Product Development Director at fulfilmentcrowd. Chorley, UK

Rocket Validator simply makes checking websites for HTML and Accessibility issues a breeze. It's so easy to use, performs validation on a regular basis using a schedule, allows us to check hundreds of pages per site and provides us with automated emails detailing the problems it finds. We've been using it since 2015 to validate the ecommerce sites we develop, I've no idea how we managed without it!
Jarrad Langdon

Jarrad Langdon

Web / Graphic Designer at Jala Design. Sydney, Australia

Rocket Validator has provided our development team with the confidence in knowing that our client's websites are performing to the best of their abilities. Prior to using this service, our sites were reviewed manually - this was a process that took time and was not completed in a consistent method. Now that we are making use of Rocket Validator we are not only saving time, but we are also seeing the excitement in fixing both HTML and Accessibility issues. Overall it's an excellent tool that has dramatically improved our development cycle.
Jay Hollywood

Jay Hollywood

Director of Humaan. Perth, Australia

We've only been using Rocket Validator a short while but it's been incredibly powerful in helping us validate multiple large sites in a very short amount of time. It has quickly become an invaluable tool in our website QA process.
Pablo Jimeno

Pablo Jimeno

Founder at Zaragoza, Spain

Rocket Validator is a powerful and straightforward tool. It not only helps us make a better product but it also improves our development process.
Luis Herrero

Luis Herrero

Freelance front-end developer. Madrid, Spain

One of the key factors in robust web development is markup validation. There are some tools that help you in this task, but none of them is as fast and complete as Rocket Validator.
And my students love it!
Gary Westergren

Gary Westergren

Webmaster of San Diego, USA

The days of validating HTML 5 one page at a time are over! If you have hundreds or thousands of pages to validate, Rocket Validator can scrape your whole site and in a matter of minutes give you actionable information about pages that need help. Until I found Rocket Validator, this was a task that took hours, (and honestly, rarely got done).
Nick Weaver

Nick Weaver

Senior Web Developer at University of Wisconsin–Madison. Wisconsin, USA

I’ve used various tools for running site-wide markup and automated accessibility testing and none come close to Rocket Validator for its speed, its ease of use and its clear and concise reporting of errors.
David Gil

David Gil

CTO at Ideas4all. Madrid, Spain

Web accessibility is a really important field impacting millions of potential users worldwide, and yet it is still quite under-prioritized by most development teams. We weren't the exception, until a potential project came up and we needed assessment and roadmap to compliance, and we needed that quick. Rocket Validator proved to be very useful in providing understanding on our current status on HTML and A11Y validation across all the pages of our sites. Information was obtained fast and easily and provided us with the details we needed just in time. No other approach out there looks so simple and efficient. Right now Rocket Validator is a common tool in our toolbox.
Almudena García

Almudena García

Freelance Ruby on Rails developer. Vitoria, Spain

HTML validation is key in creating high quality web sites, but often misregarded, as validating large sites can be tedious. Luckily, we've got Rocket Validator to automate this process, just submit a starting URL and it will validate thousands of pages from your site in minutes.
Think of it as a tool to find the needles in the haystack!

Start validating now!