Page views
25.6k
30d
▲ 482% vs previous 30d
LCP · p75
2.10 s
81% good · 25.6k samples
▼ 4% vs previous 30d
INP · p75
265 ms
64% good · 16.7k samples
▼ 1% vs previous 30d
CLS · p75
0.04
89% good · 25.6k samples
▼ 1% vs previous 30d
FCP · p75
1.69 s
77% good · 25.6k samples
▼ 1% vs previous 30d
TTFB · p75
915 ms
68% good · 25.6k samples
▼ 2% vs previous 30d
Happy page views
55%
15% unhappy · 25.6k rated
10% of these page views were in-app (soft) navigations. Those report INP and CLS, but browsers only measure LCP, FCP and TTFB on full page loads, so those three cover fewer page views.
What to fix first
Slow page loads cost you engagement
Comparing like with like (the same page type), page views whose main content took over 4 s got 55% less engaged time and 78% fewer clicks than ones that loaded in under 2.5 s. Based on 2080 slow page views across 5 page types.
Compare fast and slow page views →
Taps and clicks on this element respond slowly
#onetrust-accept-btn-handler
p75 INP is 264 ms over 4174 page views, mostly on /. Most of the time goes on running the event handler.
Try: The event handler itself is slow: do less work in it, or yield (scheduler.yield / setTimeout) before the heavy part.
INP by element →
Taps and clicks on this element respond slowly
nav.toc > a.toc-link
p75 INP is 267 ms over 2159 page views, mostly on /. Most of the time goes on running the event handler.
Try: The event handler itself is slow: do less work in it, or yield (scheduler.yield / setTimeout) before the heavy part.
INP by element →
Taps and clicks on this element respond slowly
div.gallery > button.next
p75 INP is 268 ms over 2101 page views, mostly on /. Most of the time goes on running the event handler. 4 more slow elements are in the Vitals tab.
Try: The event handler itself is slow: do less work in it, or yield (scheduler.yield / setTimeout) before the heavy part.
INP by element →
This element makes the page jump as it loads
header.site-header
p75 CLS is 0.11 on the 2600 page views where it shifted, mostly on /.
Try: Reserve its space before it arrives: width and height (or aspect-ratio) on images and embeds, a min-height for content inserted later, and font-display with matched fallback metrics for web fonts.
CLS by element →
This element makes the page jump as it loads
div.ad-slot
p75 CLS is 0.11 on the 2573 page views where it shifted, mostly on /.
Try: Reserve its space before it arrives: width and height (or aspect-ratio) on images and embeds, a min-height for content inserted later, and font-display with matched fallback metrics for web fonts.
CLS by element →
2 more findings
/search/ pages are slow to show their main content
p75 LCP is 2.64 s over 2491 full page loads; 10% took over 4 s. Most of the time goes on waiting for the server.
Try: Most of the time passes before the HTML arrives: cache pages at the edge/CDN or speed up the server.
LCP by page and element →
This element makes the page jump as it loads
ul.product-grid
p75 CLS is 0.10 on the 2550 page views where it shifted, mostly on /. 1 more element that shifts is in the Vitals tab.
Try: Reserve its space before it arrives: width and height (or aspect-ratio) on images and embeds, a min-height for content inserted later, and font-display with matched fallback metrics for web fonts.
CLS by element →
Trend
By device
| Device | Page views | p75 LCP | p75 INP | p75 CLS |
|---|---|---|---|---|
| Mobile | 25.6k | 2.10 s | 265 ms | 0.04 |
| Desktop | 19.2k | 1.53 s | 148 ms | 0.03 |
| Tablet | 6.3k | 2.14 s | 269 ms | 0.03 |
Does speed cost engagement?
Page views grouped by their own LCP. If slower pages get fewer clicks and less reading, that's the cost of slowness.
| LCP | Page views | Clicks per view | Engaged time | Avg scroll |
|---|---|---|---|---|
| Good | 20.8k | 1.71 | 35.0 s | 57% |
| Needs improvement | 2.8k | 0.83 | 24.5 s | 57% |
| Poor | 2.1k | 0.38 | 15.6 s | 38% |
Biggest changes vs previous 30d
| Measure | Previous | Now | Change |
|---|---|---|---|
| p75 LCP · Load delay | 740 ms | 712 ms | ▼ 4% |
| p75 LCP | 2.18 s | 2.10 s | ▼ 4% |
| Avg scroll depth | 57% | 55% | ▼ 2% |
| p75 LCP · Render delay | 507 ms | 518 ms | ▲ 2% |