🆚 mod_aclr vs. mod_qos

Compare technologies based on real-world usage data *

Type

Web server module
Web server module

About

mod_aclr is an Apache 1.3.x module designed to serve static files efficiently when Apache is used behind Nginx in a combined Nginx-Apache setup.

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

Wilmington, Delaware, United States

Website

Pricing

Free ✔️Open source
Free ✔️Open source

Categories

Web Server Modules › Rank #24
Web Server Modules › Rank #14

Popularity

Determined by the number of sites using each technology.

The mod_qos web server module is 66 times more popular than mod_aclr.
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 than mod_aclr in all countries.
Spain
Czech Republic
United States
Switzerland
Germany
Italy
Russia
Japan
Canada
France

Awards

Popularity by domain category

Determined by the number of sites in each category.

mod_qos is more popular than mod_aclr in all market segments.
Software/Hardware
Business
Education/Reference
Marketing/Merchandising
Blogs/Wiki
Technical Information
Internet Services
Entertainment
Portal Sites
Government/Military

Top sites

Top-ranked sites that use these technologies.

Name
Rank
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.