Customer.io vs HubSpot
Head-to-head usage across the sites we track.
Top sites by authority
Customer.io · HubSpot · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
80
Open Page Rank 8+
19
1,018
Open Page Rank 7+
78
4,401
Open Page Rank 6+
129
9,127
Open Page Rank 5+
195
16,576
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Customer.io · HubSpot · share of sites in each country using one or the other
United States
1,038
107,713
India
649
40,606
United Kingdom
545
35,927
Canada
553
29,014
France
439
22,890
Germany
508
22,199
Australia
443
20,648
Spain
384
18,473
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Customer.io | HubSpot |
|---|---|---|
| LCP | 2.4 s | 2 s |
| INP | 125 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Jun 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.