Amazon SES vs EmailJS
Head-to-head usage across the sites we track.
Top sites by authority
Amazon SES · EmailJS · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
69
8
Open Page Rank 8+
1,198
16
Open Page Rank 7+
5,105
26
Open Page Rank 6+
9,862
40
Open Page Rank 5+
16,562
56
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Amazon SES · EmailJS · share of sites in each country using one or the other
United States
73,087
348
United Kingdom
33,442
148
India
31,925
666
Canada
25,903
136
Germany
25,618
126
France
22,597
149
Brazil
22,273
179
Spain
20,719
110
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Amazon SES | EmailJS |
|---|---|---|
| LCP | 1.8 s | 2 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 700 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.
Amazon SES to EmailJS
| Domain | When |
|---|---|
| mobulous.com | Feb 2026 |
EmailJS to Amazon SES
| Domain | When |
|---|---|
| fairexpay.com | May 2026 |
| kasabeauty.at | Mar 2026 |
| customfit.ai | Jul 2025 |