Tag managers impact React sites
Tag managers ranked by their performance impact.
1
At a glance the headline numbers for Tag managers impact
Tag managers ranked by their performance impact.
3
Providers ranked
After min-sites filter
3,828
Sites in sample
Combined across all items
0.00
Best CLS (p75)
Segment
The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by CLS at p75, fastest first
| # | Provider | CLS p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Segment | 0.00 | 92.1% | 70 | |
| 2 | Matomo Tag Manager | 0.01 | 90.3% | 173 | |
| 3 | Google Tag Manager | 0.02 | 88.9% | 3,585 |
The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
3
Passing CLS per provider which group passes the CLS most often
ProviderSitesPassing CLSp75
Piwik PRO Tag Manager 0.1% 7 0.00
Segment 0.7% 70 0.00
Matomo Tag Manager 1.8% 173 0.01
Google Tag Manager 37.5% 3,585 0.02
Tealium iQ 0.3% 27 0.04
Adobe Launch/DTM 0.1% 7 0.09
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
No provider stands out: pass rates sit between 89% and 90%. computed
The State of Web Vitals · October 2026 · React sites (9,570) · phone 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
Google Tag Manager 37.5%
752.5s
91140ms
890.02
702.0s
551.4s
Matomo Tag Manager 1.8%
732.6s
96130ms
900.01
532.2s
331.6s
Segment 0.7%
842.0s
93124ms
920.00
841.3s
81742ms
Tealium iQ 0.3%
802.1s
68210ms
840.04
761.8s
56890ms
Adobe Launch/DTM 0.1%
1002.0s
100108ms
670.09
1001.3s
100671ms
Piwik PRO Tag Manager 0.1%
602.5s
75168ms
1000.00
602.0s
60978ms
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.
Matomo Tag Manager leads on CLS: 90% of its sites pass. Google Tag Manager trails at 89%. computed
The State of Web Vitals · October 2026 · React sites (9,570) · phone field datacorewebvitals.io/state-of-cwv
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Related signals Video (7) → Push notifications (5) → Analytics (20) → Ad networks (9) → 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.