Customer data platforms impact React sites
Performance impact by cdp provider.
1
At a glance the headline numbers for Customer data platforms impact
Performance impact by cdp provider.
1
Providers ranked
After min-sites filter
70
Sites in sample
Combined across all items
0.31
Best CLS (p75)
Segment
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Segment | 0.31 | 50.0% | 70 |
The State of Web Vitals · October 2026 · React sites (9,570) · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Tealium AudienceStream 0.3% 27 0.14
Segment 0.7% 70 0.31
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
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
Segment 0.7%
802.0s
75224ms
500.31
701.7s
701.8s
Tealium AudienceStream 0.3%
961.8s
100112ms
680.14
961.2s
91603ms
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 JS libraries (26) → Bot detection (8) → Email marketing (8) → Marketing pixels (10) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured
210,902 crawled sites with Chrome field data, representing millions of real page loads. How we measured.