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+
15
1
Open Page Rank 8+
254
12
Open Page Rank 7+
1,096
30
Open Page Rank 6+
2,422
50
Open Page Rank 5+
4,597
71
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
27,194
155
United States
19,846
1,786
Germany
14,837
166
Italy
14,444
140
United Kingdom
12,352
230
Spain
10,837
159
India
10,040
255
Netherlands
8,273
141
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Sendinblue | Signal |
|---|---|---|
| LCP | 2 s | 2.1 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0.05 |
| TTFB | 1000 ms | 900 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.