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+
8
7
Open Page Rank 8+
262
93
Open Page Rank 7+
1,387
354
Open Page Rank 6+
3,259
687
Open Page Rank 5+
6,301
1,243
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
40,812
1,943
United States
16,576
6,224
Germany
17,951
2,072
United Kingdom
11,969
2,983
Spain
11,483
1,659
Belgium
11,262
1,207
Netherlands
10,451
1,868
Italy
9,329
2,084
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Mailjet | SparkPost |
|---|---|---|
| LCP | 1.8 s | 1.8 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 ms | 800 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.