mod_perl vs mod_rack
Head-to-head usage across the sites we track.
Top sites by authority
mod_perl · mod_rack · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
4
0
Open Page Rank 8+
108
3
Open Page Rank 7+
270
5
Open Page Rank 6+
364
10
Open Page Rank 5+
472
13
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_rack · share of sites in each country using one or the other
United States
1,857
121
India
1,162
66
Japan
1,045
75
Indonesia
1,018
46
United Kingdom
840
61
Germany
828
58
Canada
715
55
France
704
48
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | mod_perl | mod_rack |
|---|---|---|
| LCP | 1.5 s | 1.4 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 700 ms |
Median site's p75 values from the Chrome UX Report, Sep 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_perl to mod_rack
| Domain | When |
|---|---|
| aegeanhotels.net | Dec 2025 |
| hotelsrigalv.com | Nov 2025 |
| marrakeshotels.com | Nov 2025 |
mod_rack to mod_perl
| Domain | When |
|---|---|
| pune-hotels.com | Jan 2026 |