Amazon EC2 vs IIS
Head-to-head usage across the sites we track.
Top sites by authority
Amazon EC2 · IIS · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
2
61
Open Page Rank 8+
16
1,315
Open Page Rank 7+
61
5,213
Open Page Rank 6+
115
9,906
Open Page Rank 5+
211
16,556
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Amazon EC2 · IIS · share of sites in each country using one or the other
United States
4,026
136,825
India
2,403
68,343
United Kingdom
1,755
49,161
Italy
1,172
46,831
Brazil
1,512
38,951
Canada
1,797
36,284
Germany
1,252
36,200
Türkiye
716
36,724
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Amazon EC2 | IIS |
|---|---|---|
| LCP | 1.7 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, 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 EC2 to IIS
| Domain | When |
|---|---|
| circularinnova.com | Oct 2025 |
IIS to Amazon EC2
| Domain | When |
|---|---|
| classicbus.co | Nov 2025 |
| hotelsedinburgh.net | Nov 2025 |