Core Web Vitals
Google's field measurements for loading, responsiveness, and stability, and why a slow roofing site loses work.
Definition
Three metrics: Largest Contentful Paint (how fast the main content appears), Interaction to Next Paint (how quickly the page responds to input), and Cumulative Layout Shift (how much the layout jumps while loading). They are measured from real user visits, not from a lab test.
Why roofing sites fail them
Sliders, popup builders, chat widgets, tracking stacks, and page-builder output. Each is JavaScript that has to download and execute before the page settles. On a phone with two bars in a driveway, that is the difference between a lead and a bounce.
Why a zero-JS build passes by construction
If there is no script to execute, there is little to delay paint and nothing to shift the layout after it. Native HTML accordions and forms remove the most common offenders outright, which is why the standard is zero JS by default rather than optimized JS.
What we report
Field data, not a lab score, measured before and after the rebuild and included in the post-launch crawl report.
Read next.
Google's AI-generated answer at the top of the results page, and what it means when your competitor is the cited source.
Generative Engine Optimization and Answer Engine Optimization: structuring a site to be quoted, not just ranked.
The structured data that tells a machine what your pages mean, and which types matter for a roofing company.
Short answers.
Are Core Web Vitals a ranking factor?+
They are a real but modest signal. The stronger argument is conversion: slow pages lose leads regardless of ranking.
Can my current site be fixed instead of rebuilt?+
Sometimes. Paid Discovery Roofing says which case yours is, and it is not always a rebuild.
Is your site citable today?
The audit answers that with a crawl, not an opinion.