Flask vs Microsoft ASP.NET
Head-to-head usage across the sites we track.
Top sites by authority
Flask · Microsoft ASP.NET · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Flask · Microsoft ASP.NET · share of sites in each country using one or the other
United States
279
198,360
India
242
81,597
United Kingdom
138
66,150
Italy
148
51,901
Canada
119
48,429
Germany
214
47,519
Türkiye
85
47,235
Brazil
166
44,190
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Flask | Microsoft ASP.NET |
|---|---|---|
| LCP | 1.8 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, 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Microsoft ASP.NET to Flask
| Domain | When |
|---|---|
| upal.edu | Apr 2026 |
| topmilanhotels.com | Nov 2025 |