Core Web Vitals — LCP, CLS, TBT, FCP via Google PageSpeed Insights API.
Using Google PageSpeed Insights API, we measure Core Web Vitals: LCP, CLS, TBT. We get scores for performance, accessibility, best practices, and SEO.
Largest Contentful Paint — loading time of the largest visible element.
Largest Contentful Paint
Cumulative Layout Shift — measures visual stability of the page.
Cumulative Layout Shift
Total Blocking Time — total main thread blocking time.
Total Blocking Time
Overall performance score from Google Lighthouse.
Google Lighthouse
Core Web Vitals have been an official ranking signal since 2021. Slow pages lose both users and positions.
Title, meta description — length, relevance, keyword presenc...
Heading structure, hierarchy, H1 presence, H1 length, duplic...
Word count, text-to-HTML ratio, placeholder text (Lorem Ipsu...
HTTP status, redirects, GZIP/Brotli compression, HTTP/2, HTM...
Alt text presence for accessibility and SEO. Percentage of i...
Internal and external links count, ratio, orphan page detect...
Schema.org JSON-LD — presence, types, and validation of requ...
Open Graph (og:title, og:description, og:image) and Twitter ...
Canonical URL, robots.txt, sitemap.xml, noindex/nofollow, hr...
HTTPS check, mixed content, HSTS, CSP, X-Frame-Options, emai...
DOM size, inline CSS/JS, render-blocking resources, lazy loa...
Keyword frequency, n-gram analysis, consistency across title...