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Performance & SEO with AudioEye

How do AudioEye's services affect page performance and SEO?

Intended Audience: SEO Specialists, Engineers, Developers

AudioEye's JavaScript runs in the background and has no measurable impact on your site's performance or search rankings. In fact, because AudioEye identifies and helps fix accessibility issues that search engines also care about, like missing alt text and non-descriptive links, it can actually improve your SEO over time. Here's a closer look at how it all works.

Does page speed impact SEO?

Google doesn't publish its exact ranking algorithms, but it has shared guidance on what matters. Three performance metrics, known as Core Web Vitals, factor into Google's rankings:

  • Loading speed (LCP): How quickly the main content of a page appears. Google wants this under 2.5 seconds.
  • Responsiveness (INP): How fast a page reacts when someone clicks, taps, or types. Google wants this under 200 milliseconds.
  • Visual stability (CLS): Whether elements on the page shift around unexpectedly while loading. Google wants this score below 0.1.

These three metrics are the most important performance signals for SEO. But they're not the whole picture (more on that below).

What to expect with AudioEye on your site

Loading speed (LCP): No expected impact. AudioEye's script loads in the background and doesn't start working until the page's main content has already rendered. That means it shouldn't slow down (or speed up) the time it takes visitors to see your page.

Responsiveness (INP): No expected impact. After the page loads, AudioEye runs only in tiny gaps between screen refreshes (about 16 milliseconds each). It waits for the browser to say "I have spare capacity" before doing anything. The result: a longer total script time on paper, but no noticeable effect on how snappy the page feels.

Visual stability (CLS): No expected impact. AudioEye doesn't change how your page looks. The only visual addition is a small button that lets visitors open the accessibility help desk. That's not the kind of change that triggers layout shift issues.

How AudioEye measures performance

AudioEye's team runs direct comparisons using Chrome's built-in developer tools. We measure each Core Web Vital while AudioEye is running, then again with AudioEye turned off, so we can see the real difference.

The bigger picture: relevance still wins

Google has been clear that content relevance matters more than page speed in its rankings:

"Google Search always seeks to show the most relevant content, even if the page experience is sub-par. But for many queries, there is lots of helpful content available. Having a great page experience can contribute to success in Search, in such cases."

In other words, even in a hypothetical scenario where performance was slightly affected, great content would still carry more weight.

AudioEye can actually help your SEO

AudioEye's monitoring catches accessibility issues that can be SEO problems, such as links without descriptive text and images without alt text. Fixing these improves both accessibility and how search engines understand your content, which can positively influence rankings.

Bottom line: There is no evidence that AudioEye's services negatively affect SEO performance. And by helping your team address accessibility gaps, AudioEye may actually improve your search rankings over time.

A note on SEO measurement tools

Tools like Google PageSpeed Insights show two types of data. Field data (the "real users" section at the top) averages 28 days of visitor traffic, so you can't isolate AudioEye's impact. Lab data (the "diagnostics" section below) simulates worst-case conditions, but Google doesn't use it for rankings. Neither gives you a clean before-and-after comparison, which is why AudioEye measures performance directly using Chrome's developer tools instead.