BySide vs Sendinblue
Head-to-head usage across the sites we track.
Top sites by authority
BySide · Sendinblue · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
14
Open Page Rank 8+
1
263
Open Page Rank 7+
6
1,127
Open Page Rank 6+
12
2,466
Open Page Rank 5+
17
4,672
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
BySide · Sendinblue · share of sites in each country using one or the other
France
38
30,954
United States
29
22,537
Germany
36
16,656
Italy
26
15,681
United Kingdom
37
13,949
Spain
57
11,748
India
23
11,543
Netherlands
30
9,324
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | BySide | Sendinblue |
|---|---|---|
| LCP | 2.6 s | 2 s |
| INP | 150 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 900 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.