IIS vs Starlet
Head-to-head usage across the sites we track.
Top sites by authority
IIS · Starlet · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
53
0
Open Page Rank 8+
1,275
2
Open Page Rank 7+
5,011
6
Open Page Rank 6+
9,561
19
Open Page Rank 5+
15,981
34
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
IIS · Starlet · share of sites in each country using one or the other
United States
121,069
41
India
60,068
36
United Kingdom
43,214
23
Italy
39,691
19
Brazil
35,276
14
Germany
31,791
53
Canada
31,780
18
Türkiye
31,323
19
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | IIS | Starlet |
|---|---|---|
| LCP | 1.6 s | 1.6 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0.1 |
| TTFB | 700 ms | 600 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.