1
At a glance the headline numbers for Scheduling impact
Performance impact by scheduling provider.
1
Providers ranked
After min-sites filter
1,561
Sites in sample
Combined across all items
2.3s
Best LCP (p75)
Calendly
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by LCP at p75, fastest first
| # | Provider | LCP p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Calendly | 2.3s | 82.1% | 1,561 |
The State of Web Vitals · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
3
Passing LCP per provider which group passes the LCP most often
ProviderSitesPassing LCPp75
Acuity Scheduling 0%
11
1.9s
Calendly 0.8%
1,561
2.3s
Cal.com 0%
17
2.7s
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
The State of Web Vitals · Q2 2026 · 189,915 sites · 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
Calendly 0.8%
822.3s
98105ms
880.04
761.8s
561.2s
Cal.com 0%
632.7s
82172ms
940.03
652.5s
501.7s
Acuity Scheduling 0%
901.9s
89174ms
700.12
901.3s
90587ms
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 · Q2 2026 · 189,915 sites · all devices field datacorewebvitals.io/state-of-cwv
Related signals
Reviews (8) →
Customer data platforms (6) →
Analytics (20) →
Consent platforms (16) →
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.