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
61
Open Page Rank 8+
1
1,315
Open Page Rank 7+
1
5,213
Open Page Rank 6+
2
9,906
Open Page Rank 5+
4
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
Hypercorn · IIS · share of sites in each country using one or the other
United States
34
136,825
India
33
68,343
United Kingdom
16
49,161
Italy
10
46,831
Brazil
13
38,951
Türkiye
7
36,724
Canada
12
36,284
Germany
11
36,200
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Hypercorn | IIS |
|---|---|---|
| LCP | 2.5 s | 1.7 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 1200 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.