AddEvent vs Bookly
Head-to-head usage across the sites we track.
Top sites by authority
AddEvent · Bookly · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
6
1
Open Page Rank 8+
27
26
Open Page Rank 7+
71
47
Open Page Rank 6+
118
73
Open Page Rank 5+
159
92
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
AddEvent · Bookly · share of sites in each country using one or the other
United States
598
961
Spain
155
812
United Kingdom
271
617
Germany
153
707
Italy
150
695
France
177
665
Netherlands
145
578
India
250
350
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | AddEvent | Bookly |
|---|---|---|
| LCP | 1.9 s | 2.6 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 900 ms | 1500 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.