Page views
1.1k
7d
▼ 3% vs previous 7d
LCP · p75
2.49 s
75% good · 1.1k samples
▲ 4% vs previous 7d
INP · p75
213 ms
73% good · 732 samples
▼ 1% vs previous 7d
CLS · p75
0.03
89% good · 1.1k samples
▼ 17% vs previous 7d
FCP · p75
2.47 s
59% good · 1.1k samples
▲ 4% vs previous 7d
TTFB · p75
1.34 s
51% good · 1.1k samples
▲ 4% vs previous 7d
Happy page views
56%
15% unhappy · 1.1k 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 54% less engaged time and 77% fewer clicks than ones that loaded in under 2.5 s. Based on 106 slow page views across 1 page type.
Compare fast and slow page views →
Mobile visitors get a much slower INP
p75 INP is 284 ms on mobile against 136 ms on desktop. Mobile is 48% of your page views.
Try: Test on a real mid-range phone or with CPU throttling: big images, heavy JavaScript and third-party scripts cost far more there.
INP by device →
Tablet visitors get a much slower LCP
p75 LCP is 2.90 s on tablet against 2.02 s on desktop. Tablet is 14% of your page views.
Try: Test on a real mid-range phone or with CPU throttling: big images, heavy JavaScript and third-party scripts cost far more there.
LCP by device →
Taps and clicks on this element respond slowly
#onetrust-accept-btn-handler
p75 INP is 218 ms over 179 page views, mostly on /search/. 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 →
This element makes the page jump as it loads
header.site-header
p75 CLS is 0.11 on the 129 page views where it shifted, mostly on /search/.
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
#onetrust-banner-sdk
p75 CLS is 0.11 on the 112 page views where it shifted, mostly on /search/.
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 →
3 more findings
This element makes the page jump as it loads
ul.product-grid
p75 CLS is 0.11 on the 100 page views where it shifted, mostly on /search/. 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 →
Taps and clicks on this element respond slowly
nav.toc > a.toc-link
p75 INP is 250 ms over 97 page views, mostly on /search/. 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 →
Key presses in this element respond slowly
#search_input
p75 INP is 203 ms over 94 page views, mostly on /search/. Most of the time goes on running the event handler. 2 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 →
Trend
By device
| Device | Page views | p75 LCP | p75 INP | p75 CLS |
|---|---|---|---|---|
| Mobile | 546 | 2.68 s | 284 ms | 0.03 |
| Desktop | 441 | 2.02 s | 136 ms | 0.04 |
| Tablet | 158 | 2.90 s | 255 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 | 862 | 1.76 | 33.5 s | 57% |
| Needs improvement | 177 | 0.82 | 25.2 s | 57% |
| Poor | 106 | 0.41 | 15.4 s | 40% |
Biggest changes vs previous 7d
| Measure | Previous | Now | Change |
|---|---|---|---|
| Avg engaged time | 29.2 s | 30.5 s | ▲ 4% |
| p75 FCP | 2.38 s | 2.47 s | ▲ 4% |
| p75 TTFB | 1.29 s | 1.34 s | ▲ 4% |
| p75 LCP | 2.41 s | 2.49 s | ▲ 4% |
| p75 LCP · Render delay | 1.14 s | 1.11 s | ▼ 3% |