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+
5
1
Open Page Rank 8+
27
25
Open Page Rank 7+
71
46
Open Page Rank 6+
118
73
Open Page Rank 5+
169
95
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
669
1,179
Spain
167
935
France
213
825
Germany
164
835
United Kingdom
288
694
Italy
150
828
Netherlands
159
670
India
296
403
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, 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.