Marketing pixels impact React sites

Marketing pixels and tracking SDKs ranked by performance impact.

Field data PhoneDesktopAll Scope All sites October 2026 edition · All devices 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 Marketing pixels impact

Marketing pixels and tracking SDKs ranked by performance impact.

6
Providers ranked
After min-sites filter
2,848
Sites in sample
Combined across all items
2.3s
Best LCP (p75)
Meta Pixel
The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
2

The ranking sorted by LCP at p75, fastest first

# Provider LCP p75 Passing Sites
1 Meta Pixel 2.3s 78.9%
1,426
2 Pinterest Tag 2.4s 80.0%
63
3 LinkedIn Insight 2.5s 74.4%
85
4 TikTok Pixel 2.6s 71.6%
105
5 Microsoft/Bing UET 2.6s 71.7%
414
6 Google Ads Conversion 2.8s 66.8%
755
The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
3

Passing LCP per provider which group passes the LCP most often

ProviderSitesPassing LCPp75
Reddit Pixel 0.1% 7 100% 2.1s
Pinterest Tag 0.7% 63 80% 2.4s
Snapchat Pixel 0.1% 10 80% 2.2s
Meta Pixel 14.9% 1,426 79% 2.3s
LinkedIn Insight 0.9% 85 74% 2.5s
Microsoft/Bing UET 4.3% 414 72% 2.6s
TikTok Pixel 1.1% 105 72% 2.6s
Twitter/X Pixel 0.1% 10 70% 2.7s
Google Ads Conversion 7.9% 755 67% 2.8s
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good LCP (2.5s at p75) · one value per site

79% of Meta Pixel sites pass LCP. Google Ads Conversion trails 12 points behind, leaving 33% of its sites failing. computed

The State of Web Vitals · October 2026 · React sites (9,570) · all devices 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
Meta Pixel 14.9%
792.3s
94128ms
900.02
741.8s
561.4s
Google Ads Conversion 7.9%
672.8s
92140ms
840.06
612.2s
411.7s
Microsoft/Bing UET 4.3%
722.6s
93131ms
800.08
622.1s
381.7s
TikTok Pixel 1.1%
722.6s
81181ms
890.05
651.9s
391.5s
LinkedIn Insight 0.9%
742.5s
96129ms
870.04
662.1s
421.6s
Pinterest Tag 0.7%
802.4s
87153ms
920.06
652.1s
351.5s
Twitter/X Pixel 0.1%
702.7s
70206ms
1000.04
302.6s
301.6s
Snapchat Pixel 0.1%
802.2s
90177ms
900.04
501.9s
301.4s
Reddit Pixel 0.1%
1002.1s
71199ms
1000.04
431.9s
291.0s
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.

Meta Pixel leads on LCP: 79% of its sites pass. Google Ads Conversion trails at 67%. computed

The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
Related signals JS libraries (26) → Reviews (8) → Email marketing (8) → Consent platforms (16) → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured