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OneTrust’s Cookie Solution: A Roadblock for Core Web Vitals (CWV)

As a technical SEO, it’s frustrating to see a widely adopted tool like OneTrust’s cookie solution negatively impacting critical metrics. OneTrust’s cloud-based cookie banner significantly hampers our Largest Contentful Paint (LCP), one of Google’s key performance indicators for passing Core Web Vitals.

Here’s the crux of the issue: OneTrust’s cookie banner appears late in the loading sequence, sending skewed, unfavorable signals to Google. This delay not only misrepresents our site’s actual performance but also undermines our efforts to maintain a streamlined user experience. Despite repeated feedback, OneTrust has shown little inclination to address or prioritize this issue, leaving their clients to bear the brunt of compromised page speed rankings.

For those considering alternatives, a self-hosted version of OneTrust offers a workaround. By replacing the large, obstructive cookie text block with a smaller inline text, the LCP impact can be mitigated. However, this solution is not only cumbersome but also a hacky, dirty fix that shouldn’t be necessary. The addition of an HTML free text field in OneTrust’s backend could simplify this process significantly and provide a more elegant solution.

Furthermore, OneTrust frequently triggers issues with Interaction to Next Paint (INP), adding to the performance woes. These INP problems exacerbate the user experience challenges, creating further performance bottlenecks that diminish overall site efficiency.

The core of the problem lies in how the banner is rendered, especially on mobile screens, where the cookie text occupies the largest element. Simplifying the HTML text and leveraging inline styles could resolve this issue, but it’s a patch rather than a true fix. Given these challenges, it’s prudent to reconsider reliance on OneTrust’s cloud solution until they can deliver a version that aligns with the performance standards we strive to achieve.

In conclusion, OneTrust’s current approach to cookie management not only fails to support but actively undermines our web performance goals. It’s high time for OneTrust to acknowledge and address these critical issues, or risk losing the confidence of tech-driven clients who refuse to compromise on performance.