1
At a glance the headline numbers for Customer data platforms impact
Performance impact by cdp provider.
5
Providers ranked
After min-sites filter
2,997
Sites in sample
Combined across all items
0.09
Best CLS (p75)
Segment
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Segment | 0.09 | 78.4% | 1,232 | |
| 2 | Bloomreach | 0.09 | 81.5% | 91 | |
| 3 | RudderStack | 0.10 | 75.8% | 61 | |
| 4 | Treasure Data | 0.11 | 75.0% | 65 | |
| 5 | Tealium AudienceStream | 0.13 | 71.1% | 1,548 |
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Bloomreach 0%
91
0.09
Segment 0.6%
1,232
0.09
RudderStack 0%
61
0.10
Treasure Data 0%
65
0.11
Tealium AudienceStream 0.8%
1,548
0.13
mParticle 0%
8
0.23
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
78% of Segment sites pass CLS. Tealium AudienceStream trails 7 points behind, leaving 29% of its sites failing. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · 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
Tealium AudienceStream 0.8%
872.0s
9981ms
710.13
861.4s
68922ms
Segment 0.6%
852.1s
9785ms
780.09
831.5s
651.1s
Bloomreach 0%
752.5s
98124ms
820.09
801.6s
67980ms
Treasure Data 0%
742.5s
89157ms
750.11
751.4s
68900ms
RudderStack 0%
912.0s
9795ms
760.10
881.6s
53976ms
mParticle 0%
881.6s
10094ms
630.23
881.2s
88674ms
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.
Segment leads on CLS: 78% of its sites pass. Tealium AudienceStream trails at 71%. computed
The State of Web Vitals · Q2 2026 · 189,915 sites · desktop field datacorewebvitals.io/state-of-cwv
Related signals
JS libraries (23) →
Bot detection (7) →
Email marketing (8) →
Marketing pixels (10) →
Chrome field data from 189,915 sites, representing millions of real page loads · How we measured
Chrome field data from 189,915 sites, representing millions of real page loads. How we measured.