Centminmod vs IIS
Head-to-head usage across the sites we track.
Top sites by authority
Centminmod · IIS · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
53
Open Page Rank 8+
1
1,275
Open Page Rank 7+
5
5,011
Open Page Rank 6+
9
9,561
Open Page Rank 5+
29
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
Centminmod · IIS · share of sites in each country using one or the other
United States
740
121,069
India
361
60,068
United Kingdom
436
43,214
Italy
177
39,691
Brazil
180
35,276
Canada
370
31,780
Germany
255
31,791
Türkiye
121
31,323
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Centminmod | IIS |
|---|---|---|
| LCP | 1.7 s | 1.6 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 800 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.