Category - Web Server Extensions

mod_qos is an Apache extension module that provides request priority queue to improve a quality of service (QoS).

We have discovered 4,536 live websites that are using mod_qos.

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Technology usage statistics

Websites using mod_qos 4,536 websites
Most popular in the country Switzerland
Market position in Web Server Extensions #16
Market share in Web Server Extensions 0.27%
Most popular version 11

Technology adoption

Recent changes in mod_qos usage. (See mod_qos Usage Changes report)
Websites that added mod_qos +146
Websites that dropped mod_qos -77
Websites that changed version of mod_qos 18

Distribution by websites popularity

mod_qos detection in the top websites by popularity
Top 10k sites 0 websites
Top 100k sites 6 websites
Top 1m sites 100 websites

Websites utilizing mod_qos

Top websites that use mod_qos

Domain Country Rank Contacts Czech Republic 36,478 Czech Republic 36,478 Poland 40,831 Poland 40,831 United States of America 98,002 United States of America 98,002
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Flat price per the report, subscription is not required.

Market Share

mod_qos market share within the Web Server Extensions category

Geographical Distribution

Technology usage distribution by websites across the globe.


  • 9 (4 subversions, 31 domains)
  • 10 (9 subversions, 642 domains)
  • 11 (27 subversions, 3,863 domains)

Alternative Technologies

BytesLog: Total 822 domains found using BytesLog
mod_accel: Total 74 domains found using mod_accel
mod_apreq2: Total 4,929 domains found using mod_apreq2
mod_auth_kerb: Total 1,719 domains found using mod_auth_kerb
mod_auth_pam: Total 1,968 domains found using mod_auth_pam
mod_auth_passthrough: Total 4,928 domains found using mod_auth_passthrough
mod_auth_pgsql: Total 1,737 domains found using mod_auth_pgsql
mod_bwlimited: Total 127,471 domains found using mod_bwlimited
mod_chroot: Total 169 domains found using mod_chroot
mod_dav: Total 44,069 domains found using mod_dav