Hypercorn vs IIS
Head-to-head usage across the sites we track.
Top sites by authority
Hypercorn · IIS · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
53
Open Page Rank 8+
3
1,275
Open Page Rank 7+
6
5,011
Open Page Rank 6+
8
9,561
Open Page Rank 5+
11
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
Hypercorn · IIS · share of sites in each country using one or the other
United States
29
121,069
India
30
60,068
United Kingdom
16
43,214
Italy
12
39,691
Brazil
16
35,276
Germany
15
31,791
Canada
13
31,780
Türkiye
7
31,323
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Hypercorn | IIS |
|---|---|---|
| LCP | 2.3 s | 1.6 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 1050 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.