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+
3
53
Open Page Rank 8+
17
1,275
Open Page Rank 7+
57
5,011
Open Page Rank 6+
103
9,561
Open Page Rank 5+
191
15,981
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
3,552
121,069
India
2,101
60,068
United Kingdom
1,536
43,214
Italy
979
39,691
Brazil
1,364
35,276
Canada
1,587
31,780
Germany
1,086
31,791
Türkiye
620
31,323
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Amazon EC2 | IIS |
|---|---|---|
| LCP | 1.7 s | 1.6 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Aug 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 |