mod_dav vs mod_rack
Head-to-head usage across the sites we track.
Top sites by authority
mod_dav · mod_rack · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 8+
28
3
Open Page Rank 7+
72
4
Open Page Rank 6+
113
9
Open Page Rank 5+
146
15
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
mod_dav · mod_rack · share of sites in each country using one or the other
South Korea
1,167
30
United States
1,009
119
Japan
894
78
India
584
69
Germany
535
57
Indonesia
539
52
United Kingdom
450
67
Brazil
411
49
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | mod_dav | mod_rack |
|---|---|---|
| LCP | 1.3 s | 1.5 s |
| INP | 50 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 500 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.
mod_dav to mod_rack
| Domain | When |
|---|---|
| topgranadahotels.net | Nov 2025 |
mod_rack to mod_dav
| Domain | When |
|---|---|
| pune-hotels.com | Jan 2026 |