AOLserver vs IIS
Head-to-head usage across the sites we track.
Top sites by authority
AOLserver · IIS · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
52
Open Page Rank 8+
2
1,251
Open Page Rank 7+
2
4,898
Open Page Rank 6+
3
9,357
Open Page Rank 5+
3
15,639
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
AOLserver · IIS · share of sites in each country using one or the other
United States
8
117,730
India
3
58,829
United Kingdom
7
42,820
Italy
5
40,808
Brazil
3
34,656
Canada
3
31,601
Türkiye
4
31,246
Germany
6
31,200
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | AOLserver | 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, 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.