Postscript vs Sendinblue
Head-to-head usage across the sites we track.
Top sites by authority
Postscript · 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+
39
2,466
Open Page Rank 5+
134
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
Postscript · Sendinblue · share of sites in each country using one or the other
France
490
30,954
United States
5,773
22,537
Germany
504
16,656
Italy
297
15,681
United Kingdom
1,159
13,949
India
958
11,543
Spain
325
11,748
Canada
1,608
8,723
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Postscript | Sendinblue |
|---|---|---|
| LCP | 1.5 s | 2 s |
| INP | 100 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 500 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Postscript to Sendinblue
| Domain | When |
|---|---|
| plantpico.com | Nov 2025 |
Sendinblue to Postscript
| Domain | When |
|---|---|
| seekjesus.co | Apr 2026 |