BuildFirstSite
Web design & development · Australia
Analyze your website performance, SEO status, accessibility score, and Core Web Vitals instantly.
We'll run mobile and desktop audits using the PageSpeed Insights API.
Powered directly by Google's Lighthouse engine. Ensure your speed score is accurate, transparent and reflects exactly what Google crawls.
Identify major performance issues before your users do. Learn what affects your LCP, TBT, and CLS scores.
Get a unique report link you can share with your team, designer, or marketing agency to benchmark improvement.
Google uses three key metrics as ranking factors. If your site falls behind on these, it may hurt your SEO search positions.
Measures loading performance. To provide a good user experience, LCP should occur within 2.5 seconds of when the page first starts loading.
Measures responsiveness and interactivity. TBT tracks how long a browser is blocked from responding to input (clicks, taps, typing). A score under 200ms is considered good.
Measures visual stability. CLS tracks how much the layout moves unexpectedly during load. A good visual experience is maintained by keeping CLS under 0.1.