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← Capabilities CAP-04

Core Web Vitals + edge

Performance engineering

Get your Lighthouse score above 95, your LCP under 1.0 second, and keep them there.

DOC. IDCAP-04
REV
7.4
STATUS
in production
LAST REVIEW
2026-06-12
METRIC
−61%
§ 01 How we approach this CAP-04.body

Performance work is unglamorous and tactical. We do it like a doctor reads an x-ray: measure first, then make changes you can prove from the field. We start with a Lighthouse pass against the live site, identify the three changes that buy 80% of the win, and ship them behind feature flags so we can revert if a real-user metric goes the wrong way. We finish by setting Lighthouse CI thresholds in your pull requests so the gains stick after we are gone.

§ 02 Stack CAP-04.stack
Lighthouse CIWeb Vitals APICloudflare WorkersVercel Edge