mod_perl vs mod_python
Head-to-head usage across the sites we track.
Top sites by authority
mod_perl · mod_python · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
5
0
Open Page Rank 8+
109
10
Open Page Rank 7+
279
19
Open Page Rank 6+
376
26
Open Page Rank 5+
487
34
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
mod_perl · mod_python · share of sites in each country using one or the other
United States
1,871
212
India
1,171
140
Japan
1,042
154
Indonesia
1,008
142
Germany
828
197
United Kingdom
837
130
Italy
653
169
France
688
113
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | mod_perl | mod_python |
|---|---|---|
| LCP | 1.5 s | 1.6 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.