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April 13, 20261 min read

Performance Audits — Beyond the Lighthouse Score

Measuring perceived performance and editorial efficiency in heavy decoupled environments, where a green Lighthouse score can hide real problems.

Lighthouse is a proxy, not a goal

A 98 Lighthouse score on a staging page with 50ms RTT to the CDN is not the same thing as a fast site. The metric that matters is the one your users feel.

What I actually measure

p95 TTFB from the cheapest device on the slowest network your audience uses. Editorial publish-to-live latency. The time from "I know I need to fix this" to "the fix is visible to the customer".

The tools I use

WebPageTest, Blackfire, Drupal's own performance logger, and — more than anything — conversations with the editorial team about what actually slows them down day to day.

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