PageSpeed
Nobody likes to wait. Neither does Google. The PageSpeed module shows you how fast your website loads and where the bottlenecks are.
The PageSpeed Dashboard
The overview shows aggregated values across all pages:
- Mobile Score (0-100) – Average performance on mobile devices
- Desktop Score (0-100) – Average performance on desktop
Core Web Vitals
The three metrics Google uses for ranking:
| Metric | What It Measures | Good | Needs Improvement |
|---|---|---|---|
| LCP | Largest element loaded | < 2.5s | > 4s |
| INP | Response time on click | < 200ms | > 500ms |
| CLS | Visual shifting | < 0.1 | > 0.25 |
Additionally:
- FCP – When the first element becomes visible
- TTFB – How quickly the server responds
Slowest Pages
The top 5 slowest pages at a glance, sorted by mobile score. This is where you should look first.
Page Detail
Click on a page for the full analysis:
- Mobile results with all vitals
- Desktop results with all vitals
- Trend over the last 10 crawls -- is it getting better or worse?
AI Optimization Suggestions
arkmetis analyzes the 10 slowest pages and gives you specific, actionable tips:
- Compress images or convert to WebP
- Defer render-blocking resources
- Improve server response time
- Enable browser caching
Note: For live sites, PageSpeed data comes directly from the Google PageSpeed Insights API -- the same data Google uses for ranking. For dev and staging sites, a local Lighthouse test is used instead.
Score Trend
The timeline view shows whether your optimizations are having an effect. After making changes to the website, simply start a new crawl and compare the results.