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
6
Open Page Rank 8+
251
95
Open Page Rank 7+
1,358
348
Open Page Rank 6+
3,242
668
Open Page Rank 5+
6,288
1,222
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
36,029
1,573
United States
14,983
5,570
Germany
16,250
1,833
United Kingdom
10,778
2,638
Spain
10,641
1,522
Belgium
9,984
1,056
Netherlands
9,364
1,638
Italy
8,631
1,916
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 | 700 ms | 700 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.
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 |