Test real-time Time to First Byte (TTFB), LCP, INP, CLS benchmarks, server fetch latency, and DOM payload bloat to improve Core Web Vitals and user experience.
Diagnose Core Web Vitals, server response latency, and rendering speed bottlenecks in 3 simple steps.
Submit any webpage URL to trigger real-time server fetch latency measurement and technical DOM evaluation.
Record server connection setup, DNS lookup speed, and initial HTTP response latency before DOM rendering begins.
Analyze Largest Contentful Paint (LCP), Interaction to Next Paint (INP), Cumulative Layout Shift (CLS), and DOM tree depth.
Real-user experience metrics that define Google ranking criteria, search intent satisfaction, and conversion health.
TTFB measures the duration between an HTTP request and the first byte returned. Fast TTFB ensures search bots and visitors can begin rendering without network waiting stalls.
Google evaluates user experience quality through three field metrics that measure perceived loading, interaction responsiveness, and layout stability.
Official research from Google proves that as page load duration increases from 1 second to 3 seconds, mobile visitor bounce probability surges by 32%, and surges by 90% at 5 seconds.
While speed audits test client-side rendering latency, healthy Google indexation also requires SSL security, canonical tags, and DOM tree depth under 1,500 nodes.
Audit DOM depth, SSL protocols, and robots directives with our dedicated Technical SEO Health Auditor.
Essential insights into TTFB, Largest Contentful Paint, and mobile performance factors.