Calendly vs Trumba
Head-to-head usage across the sites we track.
Top sites by authority
Calendly · Trumba · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
24
2
Open Page Rank 8+
188
32
Open Page Rank 7+
578
59
Open Page Rank 6+
1,095
95
Open Page Rank 5+
2,029
114
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Calendly · Trumba · share of sites in each country using one or the other
United States
16,543
318
Germany
16,090
48
India
7,113
118
France
5,462
45
Italy
5,184
42
United Kingdom
4,681
79
Canada
3,854
97
Spain
3,136
39
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Calendly | Trumba |
|---|---|---|
| LCP | 1.9 s | 1.7 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.