Core Web Vitals are the one place Google publishes the exam: load fast, respond instantly, stay stable. Your users grade the same paper with their thumbs. Most sites fail on real phones while passing in lab tools, because the lab flatters. We optimize to field data: what actual visitors on actual devices experience, which is what rankings and conversions are built from.
Where the seconds actually hide
The usual suspects, in order of frequency: hero images shipped at camera resolution, third-party scripts loading before content, CSS and JavaScript bundles built for the whole site delivered to every page, fonts blocking paint, and layouts that jump as late elements arrive. Each has a known fix; the craft is diagnosis and sequencing.
What we handle
- Field-data baseline: CrUX and real-user metrics by template, because averages hide the failing pages
- LCP surgery: image pipelines, priority hints, server response and critical-path CSS on the templates that matter
- INP engineering: long-task breakup, script deferral and interaction handlers that respond inside the threshold
- CLS elimination: dimension reservations, font strategies and injection rules that stop the jumping
- Third-party governance: every script gets an owner, a load strategy or an exit
- Regression guards: performance budgets and monitoring so the gains survive next quarter’s plugins
Our approach
Template-level always: one fixed template moves thousands of URLs. We ship in measured waves, watch the field data refresh, and document each gain against its cause. The final deliverable includes the budget rules that keep the site green after we leave.
How long until field data shows improvement?
CrUX aggregates over a rolling window, so fixes surface within weeks of deployment and settle fully across a month. We track lab metrics for instant feedback and field metrics for truth.
Will this actually move rankings and revenue?
Vitals are a ranking signal and speed is a conversion lever with decades of evidence: faster pages bounce less and convert more, especially on mobile paid traffic. We baseline conversion by template so the business impact reports alongside the scores.
Runs inside Technical SEO foundations, protects gains via Website Maintenance Plans, and compounds Landing Page Optimization results.
Geeks Digital