🆚 mod_aclr2 vs. mod_qos

Compare technologies based on real-world usage data *

Type

Web server module
Web server module

About

mod_aclr2 is an Apache web server module that automates serving static content with NGINX as a reverse proxy.

It works by intercepting static file responses in Apache, adding the internal X-Accel-Redirect header, and handing the request back to NGINX for direct file delivery while dynamic requests continue to be processed by Apache.

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.

Headquarters

Lafayette, Colorado, United States

Website

Pricing

Free ✔️Open source
Free ✔️Open source

Categories

Web Server Modules › Rank #4
Web Server Modules › Rank #14

Popularity

Determined by the number of sites using each technology.

The mod_aclr2 web server module is 17 times more popular than mod_qos.
Total websites

Market share

Web Server Modules

Popularity by country

Determined by the number of sites detected from each country.

mod_aclr2 is more popular in Germany, the Netherlands, and Japan, while mod_qos is more popular in the Czech Republic and Korea.
Germany
Netherlands
Japan
United States
Italy
Spain
Thailand
Switzerland
United Kingdom
Austria

Awards

Popularity by domain category

Determined by the number of sites in each category.

mod_aclr2 is more popular than mod_qos in all market segments.
Business
Education/Reference
Internet Services
Marketing/Merchandising
Blogs/Wiki
Software/Hardware
Online Shopping
Entertainment
Travel
Health

Top sites

Top-ranked sites that use these technologies.

Name
Rank
#18,483
#36,119
#40,579
#42,308
View more ➝
Name
Rank
#49,165
View more ➝

See also

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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.