🆚 mod_qos vs. mod_rpaf

Compare technologies based on real-world usage data *

Type

Web server module
Web server module

About

mod_qos is a quality of service (QoS) module for the Apache web server that implements configurable control mechanisms to prioritize and manage HTTP requests to preserve server resources under load.

It offers limits on concurrent requests per URL or IP, per-second request rate caps, VIP user rules, and request blocking, delay, throttling, and connection dropping to avoid overload and mitigate traffic spikes.

mod_rpaf is an Apache module that restores the original client IP address when Apache runs behind a reverse proxy by rewriting REMOTE_ADDR based on X-Forwarded-For headers.

Website

Pricing

Free ✔️Open source
Free ✔️Open source

Categories

Web Server Modules › Rank #14
Web Server Modules › Rank #19

Popularity

Determined by the number of sites using each technology.

The mod_qos web server module is 1.8 times more popular than mod_rpaf.
Total websites

Market share

Web Server Modules

Popularity by country

Determined by the number of sites detected from each country.

mod_qos is more popular in Spain, the United States, and the Czech Republic, while mod_rpaf is more popular in Russia and Tajikistan.
Russia
Spain
United States
Czech Republic
Switzerland
Germany
Italy
Japan
Romania
Canada

Awards

Popularity by domain category

Determined by the number of sites in each category.

mod_qos is more popular among sites focused on business, software and hardware, and education and reference, while mod_rpaf is more commonly used on marketing and merchandising, Internet services, and potentially unwanted programs sites.
Business
Marketing/Merchandising
Software/Hardware
Education/Reference
Blogs/Wiki
Internet Services
Technical Information
Government/Military
Potentially Unwanted Programs
Travel

Top sites

Top-ranked sites that use these technologies.

Name
Rank
#49,165
View more ➝
Name
Rank
#169,056
#234,281
#275,810
#290,163
View more ➝

See also

* According to recent studies, many of online reviews are fake.
When making your decision, it is better to rely on data that cannot be falsified.
Our service evaluates the popularity of technologies by the number of websites using them.

Statistics were last calculated on .
For details, see our methodology and disclaimer.