The State of Web Vitals

Session recording impact

Session-recording tools ranked by performance impact.

Field data PhoneDesktopAll Scope All sites Q2 2026 edition · All devices field outcomes
Metric LCP INP CLS
1

At a glance the headline numbers for Session recording impact

Session-recording tools ranked by performance impact.

9
Providers ranked
After min-sites filter
14,812
Sites in sample
Combined across all items
0.04
Best CLS (p75)
Lucky Orange
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by CLS at p75, fastest first

# Provider CLS p75 Passing Sites
1 Lucky Orange 0.04 85.5%
78
2 FullStory 0.06 81.2%
271
3 Crazy Egg 0.06 84.2%
185
4 PostHog Replay 0.06 87.7%
283
5 Hotjar 0.06 83.6%
4,462
6 Microsoft Clarity 0.06 84.3%
8,476
7 Smartlook 0.07 86.7%
162
8 Mouseflow 0.07 82.8%
304
9 Contentsquare 0.09 77.7%
591
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
3

Passing CLS per provider which group passes the CLS most often

ProviderSitesPassing CLSp75
PostHog Replay 0.1% 283 88% 0.06
Smartlook 0.1% 162 87% 0.07
Lucky Orange 0% 78 86% 0.04
Microsoft Clarity 4.5% 8,476 84% 0.06
Crazy Egg 0.1% 185 84% 0.06
Hotjar 2.3% 4,462 84% 0.06
Mouseflow 0.2% 304 83% 0.07
FullStory 0.1% 271 81% 0.06
Contentsquare 0.3% 591 78% 0.09
Inspectlet 0% 39 77% 0.09
LogRocket 0% 28 59% 0.19
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

88% of PostHog Replay sites pass CLS. Contentsquare trails 10 points behind. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices 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 4.5%
802.3s
93138ms
840.06
731.8s
541.3s
Hotjar 2.3%
782.4s
93135ms
840.06
721.9s
531.3s
Contentsquare 0.3%
702.7s
86166ms
780.09
721.9s
561.2s
Mouseflow 0.2%
782.4s
94135ms
830.07
731.9s
571.2s
PostHog Replay 0.1%
782.4s
89146ms
880.06
681.9s
441.4s
FullStory 0.1%
802.3s
89114ms
810.06
821.6s
651.0s
Crazy Egg 0.1%
762.5s
92133ms
840.06
741.9s
531.3s
Smartlook 0.1%
752.5s
93137ms
870.07
632.2s
451.3s
Lucky Orange 0%
862.1s
95116ms
860.04
831.6s
74814ms
Inspectlet 0%
852.0s
97130ms
770.09
771.7s
581.1s
LogRocket 0%
563.3s
83173ms
590.19
562.1s
591.1s
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.

PostHog Replay leads on CLS: 88% of its sites pass. Contentsquare trails at 78%. computed

The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals Search (5) → JS libraries (23) → Scheduling (3) → Push notifications (5) → Chrome field data from 189,915 sites, representing millions of real page loads · How we measured