Amazon SES vs Mailman
Head-to-head usage across the sites we track.
Top sites by authority
Amazon SES · Mailman · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
69
2
Open Page Rank 8+
1,198
28
Open Page Rank 7+
5,105
53
Open Page Rank 6+
9,862
59
Open Page Rank 5+
16,562
64
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 · Mailman · share of sites in each country using one or the other
United States
73,087
103
United Kingdom
33,442
69
India
31,925
91
Canada
25,903
54
Germany
25,618
77
France
22,597
63
Brazil
22,273
63
Spain
20,719
62
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Amazon SES | Mailman |
|---|---|---|
| LCP | 1.8 s | 1.5 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 700 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.