Chat & messaging impact React sites

Performance impact by chat provider.

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop field outcomes · React sites only
Metric LCP INP CLS
React Scoped to 9,570 sites out of 210,902 analyzed (frameworks) Compare with all sites →
1

At a glance the headline numbers for Chat & messaging impact

Performance impact by chat provider.

2
Providers ranked
After min-sites filter
149
Sites in sample
Combined across all items
76ms
Best INP (p75)
HubSpot Chat
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by INP at p75, fastest first

# Provider INP p75 Passing Sites
1 HubSpot Chat 76ms 97.1%
54
2 Re:amaze 121ms 100.0%
95
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
3

Passing INP per provider which group passes the INP most often

ProviderSitesPassing INPp75
Re:amaze 1% 95 100% 121ms
tawk.to 0.3% 31 100% 152ms
Tidio 0.1% 13 100% 50ms
LiveChat 0.1% 12 100% 78ms
Smartsupp 0.1% 7 100% 57ms
HubSpot Chat 0.6% 54 97% 76ms
Zendesk Chat 0.1% 10 86% 67ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site
The State of Web Vitals · October 2026 · React sites (9,570) · 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
Re:amaze 1%
712.4s
100121ms
500.14
100833ms
100691ms
HubSpot Chat 0.6%
633.0s
9776ms
690.17
582.5s
391.6s
tawk.to 0.3%
503.3s
100152ms
630.16
442.8s
72.3s
Tidio 0.1%
433.5s
10050ms
430.26
711.9s
571.5s
LiveChat 0.1%
562.6s
10078ms
780.09
442.1s
381.8s
Zendesk Chat 0.1%
712.9s
8667ms
710.12
712.4s
571.8s
Smartsupp 0.1%
604.1s
10057ms
600.11
603.8s
403.4s
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.

The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
Related signals Customer data platforms (6) → Font services (4) → A/B testing (12) → RUM (14) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured