Mailjet vs SparkPost
Head-to-head usage across the sites we track.
Top sites by authority
Mailjet · SparkPost · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
9
7
Open Page Rank 8+
254
95
Open Page Rank 7+
1,372
353
Open Page Rank 6+
3,269
678
Open Page Rank 5+
6,319
1,236
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Mailjet · SparkPost · share of sites in each country using one or the other
France
34,034
1,574
United States
14,939
5,634
Germany
16,309
1,856
United Kingdom
10,701
2,625
Spain
10,168
1,479
Belgium
9,890
1,053
Netherlands
9,332
1,585
Italy
8,523
1,807
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Mailjet | SparkPost |
|---|---|---|
| LCP | 1.8 s | 1.7 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 800 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.
Mailjet to SparkPost
| Domain | When |
|---|---|
| thevea.de | Jul 2026 |