1
At a glance the headline numbers for Scheduling impact
Performance impact by scheduling provider.
1
Providers ranked
After min-sites filter
1,675
Sites in sample
Combined across all items
116ms
Best INP (p75)
Calendly
The State of Web Vitals · October 2026 · 203,892 crawled sites · phone field datacorewebvitals.io/state-of-cwv
2
The ranking sorted by INP at p75, fastest first
| # | Provider | INP p75 | Passing | Sites | |
|---|---|---|---|---|---|
| 1 | Calendly | 116ms | 96.2% | 1,675 |
The State of Web Vitals · October 2026 · 203,892 crawled sites · phone field datacorewebvitals.io/state-of-cwv
3
Passing INP per provider which group passes the INP most often
ProviderSitesPassing INPp75
Cal.com 0% 17 188ms
Calendly 0.8% 1,675 116ms
Acuity Scheduling 0% 13 192ms
Good Needs Improvement Poor Sorted best-passing first · median colored by its own rating · pass = good INP (200ms at p75) · one value per site
The State of Web Vitals · October 2026 · 203,892 crawled sites · 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
Calendly 0.8%
802.3s
96116ms
900.02
741.8s
541.2s
Cal.com 0%
1002.1s
100188ms
1000.01
881.5s
71794ms
Acuity Scheduling 0%
1001.3s
75192ms
830.07
1001.1s
100551ms
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 · October 2026 · 203,892 crawled sites · phone field datacorewebvitals.io/state-of-cwv
Related signals Reviews (8) → Customer data platforms (6) → Analytics (20) → Consent platforms (16) → 203,892 crawled sites with Chrome field data, representing millions of real page loads · How we measured
203,892 crawled sites with Chrome field data, representing millions of real page loads. How we measured.