🆚 mod_gzip vs. mod_qos
mod_qos is three times more popular than mod_gzip.- mod_qos is more popular in Spain, Czechia, and Germany.
- mod_gzip is more popular in the United States, Russia, and Bulgaria.
Type
About
mod_gzip is an 
Apache HTTP Server module that compresses web content with 
Gzip encoding to reduce page size and bandwidth usage.
It operates as an external extension module for Apache 1.3 and 2.x, supports dynamic on-the-fly compression for 
HTML, 
CSS, and 
JavaScript content, and works with standard zlib compression libraries.
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
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Popularity by domain category
Determined by the number of sites in each category.
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.