Case Studies

Measured results from real engagements, published with the method alongside the number so you can judge whether the comparison holds for your site.

Mobile Lighthouse performance: 73 to 95

Google Lighthouse mobile audit of a client site, before and after technical remediation. July 2026.

Google Lighthouse, mobile profile, same tool and conditions both times. Client anonymised.

Performance73 to 95, on mobile. The only score that moved, and the one holding the site back. Mobile Lighthouse scores typically run 20 to 30 points below desktop for the same site, because the test simulates a mid-tier phone on throttled 4G. A 95 under those conditions is a genuinely fast site.

Accessibility100, held. Already at the ceiling before the work and kept there. Performance changes frequently break accessibility, so holding it is part of the result rather than a footnote.

Best Practices96, held. Covers HTTPS, console errors, deprecated APIs, and image aspect ratios.

SEO92, held. Lighthouse checks crawlability basics only. It is a floor, not a ranking prediction.

What we changed

Three changes, all targeting bytes the browser had to fetch and process before it could render.

Converted images to WebPThe single biggest win on most sites. WebP typically cuts image weight 25 to 35 percent against equivalent-quality JPEG or PNG, and images are usually the largest thing a mobile browser has to download before it can paint the page. This is what moves Largest Contentful Paint.

Removed unused CSSThemes and page builders ship stylesheets covering every feature they support, whether the page uses them or not. Stripping the unused rules cuts render-blocking bytes, and CSS blocks rendering entirely until it is parsed.

Removed unused JavaScriptUnused script is worse than unused CSS, because the browser has to download it, parse it, and execute it on the main thread. On mobile that main thread is far slower, which is why the same change shows a bigger gain on mobile than on desktop.

What a case study from us contains

The starting positionWhere the business was, with the numbers, before anything changed. A delta without a baseline is not evidence.

The diagnosisWhat we found and why it mattered, in technical detail. This is where the work is either credible or it is not.

What we did, in orderThe actual sequence with timeframes, written so someone could follow it.

The result, measured the same way twiceSame tool, same device profile, same conditions. Changing the method between measurements is how misleading claims get made.

What it cost and how long it tookWithout these, a result cannot be judged against your own situation.

Frequently asked questions

Are these results typical?

No agency results are typical, including ours. Outcomes depend on the starting position, the platform, the competition, and how much of the recommended work actually gets implemented. We publish the method alongside the number so you can judge whether the comparison holds for your site.

Was this measured on mobile or desktop?

Mobile. Lighthouse mobile simulates a mid-tier device on throttled 4G, and scores typically run 20 to 30 points below desktop for the same site. We report mobile because that is the harder test and, for most local businesses, the majority of actual visitors.

Why is there only one result on this page?

Because we publish what we can evidence. As engagements complete and clients agree to be referenced, this page grows. We would rather show one verifiable number than a page of unattributable claims.

Why is the client not named?

Some businesses prefer competitors not know who handles their search and engineering. The measurements are the same either way, and we will connect you with a reference on the audit call.

Does a higher Lighthouse score mean higher rankings?

Not directly. Lighthouse is a lab test, not a ranking tool. Core Web Vitals are a real but modest ranking signal, and Google measures them from actual visitor data rather than from Lighthouse. What a score like this reliably predicts is a faster site for real users, which affects conversion more than it affects position.

Can I talk to a reference?

Yes. We connect prospective clients with a current client in a comparable industry after the audit call.

Want to see what your site scores?

The free technical audit includes a full Lighthouse and Core Web Vitals breakdown of your actual site on mobile, with a prioritized fix list. Five business days, no obligation.

The reasoning behind this engagement is written up in Core Web Vitals in 2026: what actually moves rankings vs. what is noise. The same work sits inside SEO and Web Design.