Frequently Asked Questions
What are Core Web Vitals?
Core Web Vitals are Google's key metrics for user experience: Largest Contentful Paint (LCP) measures loading speed, First Input Delay (FID) measures interactivity, and Cumulative Layout Shift (CLS) measures visual stability. Google uses these as ranking factors.
What is a good page speed score?
A score of 90-100 is considered good, 50-89 needs improvement, and below 50 is poor. Focus on Core Web Vitals first — LCP under 2.5 seconds, FID under 100ms, and CLS under 0.1. These have the most impact on both rankings and user experience.
Why is my mobile score lower than desktop?
Mobile scores are almost always lower because the test simulates a mid-range phone on a slower network connection. Google uses mobile-first indexing, so your mobile score matters more for rankings than desktop.
How can I improve my page speed?
The most impactful improvements are: optimise and compress images, enable browser caching, minimise JavaScript and CSS, use a CDN, and implement lazy loading for below-the-fold content. The recommendations in your scan results are prioritised by impact.
Is this speed test free to use?
Yes, completely free with no limits. For ongoing speed monitoring that tracks your scores over time and alerts you to regressions, check out ModusOp's Domain Health module.