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
1
Open Page Rank 8+
1,212
27
Open Page Rank 7+
5,141
51
Open Page Rank 6+
9,933
56
Open Page Rank 5+
16,642
61
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
68,578
97
United Kingdom
30,605
63
India
29,573
88
Canada
23,708
52
Germany
23,173
62
Brazil
22,083
59
France
19,706
60
Spain
19,597
59
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, 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.