Audit your website with real users, networks, and devices

Improve Accessibility, SEO, Quality, Performance, Security, and more.

All audits run on your user’s browsers, so your metrics are coming from real users!

And you can focus on fixing problems that impact your users the most.

No credit card is required.  Easy to setup. 14-day trial.

Discover what your real users are experiencing.

Audit your website for improvements.

SiteLint Dashboard

Confidently Ensure Your Website Functions Flawlessly for Everyone

Audit the client side to avoid problems that could lose you customers or visitors

SiteLint Audits

  • Accessibility

    ADA, AODA, WCAG 2.1 compliant, user/mobile testing, remediation, VPAT services, UX/UI consultations. We help organizations scale the accessibility program.

  • Quality and Tracking Errors

    Track JavaScript runtime errors. Find invalid links, excessively large images, and more.

  • Performance

    Monitor, analyze and optimize your website or application’s speed and performance, based on performance best practices, including Core Web Vitals.

  • Privacy

    Determine tracker IP anonymization settings, mixed HTTP and HTTPS content, and more.

  • Security

    Determine missing HTTPS protocol, check for links to cross-origin destinations, and more.

  • SEO

    Get technical SEO advice that, along with content marketing and link building, impacts on the higher ranking and increased traffic. Handle issues before a search engine crawls the page.

How it works


Set up Audits for a website / web app.

Create a unique token and insert code into your website or web app. You don’t need to set up digital properties or set the crawling settings.

<script defer id="auditor_app" data-autorun src=""></script>

As visitors use your website, SiteLint audits from their devices.

Get clear reports based on real users, networks, and devices. No more reports from pages that users never visit.

Instead of focusing on specific areas (e.g. only SEO), we go further and use an approach called Multidimensional Audits. We want not only to have a good site position in the search engines but also for our application to be fast, accessible, usable, secure, conformant, compliant, and free of technical issues.

Two persons working at their desk

Start fixing problems in places where users use the most.

Knowing the page that reports the most errors, you will know not only where to start fixing issues, but also perfectly planning the remediation process.

SiteLint AI (Artificial Intelligence) is open to learning and you can teach it, which audit rules to follow, which to skip, or even create your own. This reduces false-positives without worrying about page changes.

FTB (Follow The Behavior) technology will help track the dynamic changes on the page automatically.

SiteLint Dashboard - Rule Report

Get clear insights from User Feedback Recordings.

User Feedback Recording is a great way to ask the user to reproduce an error or test some functionality.

With one click you send a request to the user and he records the sessions at the best time for him. All without installing any external software.

SiteLint User Feedback Recording page

Sitelint vs. Other Solutions

CrawlingSiteLint doesn’t crawl, but instead, it runs a code snippet on your site whenever the user lands on the page. That means reports are generated based on real user visits.Only crawling is available. That requires setting up the crawling rules (which pages, how deep, and many more) and crawling even those pages that are never visited by the user.
AuditsWe do not rely on third-party auditing applications, instead utilizing our own set of rules, which allows for more control and customization.Most vendors use the same tools available across the internet, so the results of the audits will be almost identical. Additionally, they have no direct influence on the development of the audit tool and set of rules.
EnvironmentThe real user, its network, and the environment are involved during the audit.Hermetic, mostly as a one-type of environment with predefined settings and browsers. The real user is not involved during the audit.
Scanning behind authenticationDoes not require any settings.It requires complex solutions to handle different authentication flows.
Fixes verificationOnce the issues are fixed you only need to go to your fixed page, reload and then verify the status directly in our SiteLint Audits Analytics. The same issue that affected other pages will be automatically resolved for those pages.Once the issues are fixed you need to crawl the page (or pages) to see the results.
User specific settingsNot needed as SiteLint Audits are running on a real user environment.Mostly running with default settings with a few options like viewport size.
Fixes prioritisationAlways start from Critical Types of issues, but SiteLint Active scanning helps you also to understand mostly visited pages so you can start fixing issues on those pages first.Once the scan is performed using the passive scanning approach you need to walk through all issues, but without knowing which pages are most visited.
MonitoringSiteLint’s audits are always executed whenever users visit the site, eliminating the need for scheduling or setting up monitoring.It requires a set of various options like scheduling cadence, frequency, and limit pages, and scan level depth.
PerformanceSince audits are running on the client side, they don’t impact your cloud or server infrastructure for scanning in comparison to crawling. Each audit required scanning all pages almost every time because you don’t know what has changed on them.
Single Page ApplicationFull support for single-page applications, with live-watching changes.Not supported due to technical limitations. Note that the single page can be crawled, but since the application states changes without reloading, the crawling approach won’t be able to process dynamic changes on the page.
Cloud CostsNo impact. The audit is done directly in the visitor’s browser. None of your cloud services are involved.Every time your website is audited, it must be downloaded from your cloud service. This can affect the cost if you pay for the use of resources, such as transfer or CPU usage.
User Feedback RecordingsFully supported. You can manage the issues or ask for feedback by simply sending a user record session request. No extra installation is needed! All happens in the browser. Not supported

Trusted by

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  • Sparco logo

Features You’ll Love

  1. Accessibility, SEO, Performance, Privacy, Quality, Security, and Logs – all in one place.
  2. Monitor and audit unlimited sites, in real-time, without crawling or auditing in specific times intervals – 24 hours a day / 7 days a week / 365 days a year.
  3. Time and resources saving by helping you to avoid writing complex end-to-end tests.
  4. Collect results from real users, networks, and devices.
  5. Improve significantly remediation process by knowing which pages reported most issues.
  6. Get the full report and find out how many pages each issue occurs.
  7. Automate and manage false positives directly in the code.
  8. Find out how many pages have the same problem. This significantly improves the remediation process.
  9. Find out which issues require manual verification.
  10. Get our recommendations to improve your site further.
  11. Measure Core Web Vitals across all pages.
  12. Perform audits securely, excluding sensitive data from reports.
  13. Integrate with your CI/CD pipeline.
  14. Manage site quality, issues, and remediation process under your organization’s workspace.
  15. See devices where the issue happens.
  16. Run audits behind a firewall (authentication) without limitations.
  17. Support for Single Page Application type.
  18. SiteLint WordPress plugin to use on WordPress sites.

Need help? Want to know more?

Get answers to some of your questions in our Frequently Asked Questions or schedule a 30 min session with one of our SiteLint experts.

Get Started Today

We’ll get you going in a matter of minutes.

Audit your site today and let SiteLint checker identify Accessibility, SEO, Performance, Security, Privacy, Quality, and Technical issues in an easy one click!