Session recording impact WordPress sites

Session-recording tools ranked by performance impact.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop field outcomes · WordPress sites only
Metric LCP INP CLS
WordPress Scoped to 63,295 sites out of 203,892 analyzed (cms) Compare with all sites →
1

At a glance the headline numbers for Session recording impact

Session-recording tools ranked by performance impact.

6
Providers ranked
After min-sites filter
4,526
Sites in sample
Combined across all items
0.07
Best CLS (p75)
Smartlook
The State of Web Vitals · October 2026 · WordPress sites (63,295) · desktop field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by CLS at p75, fastest first

# Provider CLS p75 Passing Sites
1 Smartlook 0.07 75.9%
56
2 Mouseflow 0.10 75.0%
84
3 Hotjar 0.10 77.4%
1,566
4 Microsoft Clarity 0.10 75.8%
2,632
5 Crazy Egg 0.10 75.0%
50
6 Contentsquare 0.12 70.7%
138
The State of Web Vitals · October 2026 · WordPress sites (63,295) · desktop field datacorewebvitals.io/state-of-cwv
3

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75
PostHog Replay 0.1% 46 92% 0.06
FullStory 0% 24 86% 0.09
Lucky Orange 0% 14 80% 0.07
Hotjar 2.5% 1,566 77% 0.10
Smartlook 0.1% 56 76% 0.07
Microsoft Clarity 4.2% 2,632 76% 0.10
Mouseflow 0.1% 84 75% 0.10
Crazy Egg 0.1% 50 75% 0.10
Contentsquare 0.2% 138 71% 0.12
Inspectlet 0% 14 56% 0.22
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good CLS (0.1 at p75) · one value per site

77% of Hotjar sites pass CLS. Contentsquare trails 6 points behind, leaving 29% of its sites failing. computed

The State of Web Vitals · October 2026 · WordPress sites (63,295) · desktop field datacorewebvitals.io/state-of-cwv
4

All five vitals at once the whole category without toggling - cell is the pass rate, small number the p75

LCP
INP
CLS
FCP
TTFB
Microsoft Clarity 4.2%
712.7s
10072ms
760.10
622.2s
291.9s
Hotjar 2.5%
752.5s
10067ms
770.10
642.1s
321.8s
Contentsquare 0.2%
702.6s
10070ms
710.12
602.1s
281.9s
Mouseflow 0.1%
732.5s
10060ms
750.10
681.9s
331.8s
Smartlook 0.1%
523.0s
10062ms
760.07
382.4s
42.1s
Crazy Egg 0.1%
802.3s
10062ms
750.10
692.0s
441.4s
PostHog Replay 0.1%
812.1s
10074ms
920.06
861.6s
291.3s
FullStory 0%
861.3s
10052ms
860.09
861.1s
67838ms
Inspectlet 0%
672.5s
10061ms
560.22
781.4s
561.1s
Lucky Orange 0%
802.3s
10094ms
800.07
601.9s
401.2s
60%95%+ passing Cell: pass rate, small number = p75 · faded rows: under 100 sites

One row per provider, one column per vital - the cell is the share of sites passing, the small number the p75. No toggling needed to see where the category actually differs.

Hotjar leads on CLS: 77% of its sites pass. Contentsquare trails at 71%. computed

The State of Web Vitals · October 2026 · WordPress sites (63,295) · desktop field datacorewebvitals.io/state-of-cwv
Related signals Search (6) → JS libraries (26) → Scheduling (3) → Push notifications (5) → 203,892 crawled sites with Chrome field data, representing millions of real page loads · How we measured