🆚 mod_deflate vs. mod_qos
mod_qos is much more popular than mod_deflate.- mod_qos is more popular in Spain, Czechia, and the United States.
mod_deflate is more popular in Russia, Bulgaria, and Ukraine.
Statistics based on 4M+ analyzed websites. About this 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.
Pricing
Free ✔️ Open source
Categories
Web Server Modules › Rank #22
Web Server Modules › Rank #13
Popularity
Determined by the number of sites using each technology.
The mod_qos web server module is 13 times more popular than mod_deflate.
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, Czechia, and the United States, while mod_deflate is more popular in Russia, Bulgaria, and Ukraine.
Spain
Czechia
United States
Germany
Italy
Russia
Brazil
Netherlands
Switzerland
China
Popularity by domain category
Determined by the number of sites in each category.
mod_qos is more popular among sites focused on business, education and reference, and technical information, while mod_deflate is more commonly used on Internet services sites.
Business
Education/Reference
Technical Information
Marketing/Merchandising
Software/Hardware
Internet Services
Entertainment
Government/Military
Portal Sites
Blogs/Wiki
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 4,046,631 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.