mod_fastcgi vs mod_perl
Head-to-head usage across the sites we track.
Top sites by authority
mod_fastcgi · mod_perl · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
1
5
Open Page Rank 8+
16
110
Open Page Rank 7+
25
281
Open Page Rank 6+
38
388
Open Page Rank 5+
49
511
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
mod_fastcgi · mod_perl · share of sites in each country using one or the other
United States
315
2,270
India
145
1,325
Japan
136
1,264
Indonesia
120
1,193
Germany
189
984
United Kingdom
152
968
France
170
850
Spain
239
750
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | mod_fastcgi | mod_perl |
|---|---|---|
| LCP | 1.7 s | 1.5 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 700 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
mod_fastcgi to mod_perl
| Domain | When |
|---|---|
| warsawhotels.net | Nov 2025 |
mod_perl to mod_fastcgi
| Domain | When |
|---|---|
| hotelsantwerp.net | Nov 2025 |