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
13
Open Page Rank 8+
1
250
Open Page Rank 7+
6
1,100
Open Page Rank 6+
43
2,435
Open Page Rank 5+
140
4,621
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
455
25,958
United States
5,251
19,918
Germany
468
14,883
Italy
325
13,878
United Kingdom
1,066
12,372
India
872
10,203
Spain
348
10,428
Canada
1,495
7,431
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, Aug 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 |
|---|---|
| maisongalerieboutique.com | May 2026 |
| seekjesus.co | Apr 2026 |