Sendinblue vs Signal
Head-to-head usage across the sites we track.
Top sites by authority
Sendinblue · Signal · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
14
1
Open Page Rank 8+
263
13
Open Page Rank 7+
1,127
36
Open Page Rank 6+
2,466
59
Open Page Rank 5+
4,672
79
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Sendinblue · Signal · share of sites in each country using one or the other
France
30,954
200
United States
22,537
2,090
Germany
16,656
209
Italy
15,681
157
United Kingdom
13,949
274
Spain
11,748
171
India
11,543
306
Netherlands
9,324
179
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Sendinblue | Signal |
|---|---|---|
| LCP | 2 s | 2.2 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0.05 |
| TTFB | 900 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.