1
At a glance the headline numbers for Customer data platforms impact
Performance impact by cdp provider.
5
Providers ranked
After min-sites filter
3,339
Sites in sample
Combined across all items
0.09
Best CLS (p75)
Segment
The State of Web Vitals · October 2026 · 210,902 crawled 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 | 78.6% | 1,391 | |
| 2 | Bloomreach | 0.09 | 81.9% | 95 | |
| 3 | RudderStack | 0.10 | 77.8% | 66 | |
| 4 | Treasure Data | 0.11 | 75.0% | 66 | |
| 5 | Tealium AudienceStream | 0.13 | 71.4% | 1,721 |
The State of Web Vitals · October 2026 · 210,902 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Bloomreach 0% 95 0.09
Segment 0.7% 1,391 0.09
RudderStack 0% 66 0.10
Treasure Data 0% 66 0.11
Tealium AudienceStream 0.8% 1,721 0.13
mParticle 0% 9 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
79% of Segment sites pass CLS. Tealium AudienceStream trails 8 points behind, leaving 29% of its sites failing. computed
The State of Web Vitals · October 2026 · 210,902 crawled 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%
862.0s
9982ms
710.13
861.4s
68918ms
Segment 0.7%
862.0s
9786ms
790.09
851.5s
671.0s
Bloomreach 0%
762.5s
98127ms
820.09
811.6s
68970ms
Treasure Data 0%
742.5s
89157ms
750.11
751.4s
68900ms
RudderStack 0%
912.0s
9787ms
780.10
891.6s
54950ms
mParticle 0%
891.4s
10093ms
670.22
891.1s
89712ms
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: 79% of its sites pass. Tealium AudienceStream trails at 71%. computed
The State of Web Vitals · October 2026 · 210,902 crawled sites · 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.