NGINX CDN Loop Detection: Prevent Request Loops
by Danila Vershinin, March 14, 2026
Learn how to prevent infinite request loops in NGINX CDN and reverse proxy configurations using the loop detect module. This module implements RFC 8586’s CDN-Loop header to track request hops and automatically block runaway loops before they consume server resources.
Read More...NGINX Compression Vary: Fix Broken Vary Headers
by Danila Vershinin, March 2, 2026
The NGINX compression_vary module replaces the standard gzip_vary directive with smarter Vary header handling. It merges multiple Vary headers into one, removes duplicates, and properly appends Accept-Encoding — preventing CDN cache fragmentation and improving caching efficiency across gzip, Brotli, and Zstandard compression.
Read More...NGINX Query String Normalization with sorted-args Module
by Danila Vershinin, February 17, 2026
Improve NGINX cache hit rates by normalizing query string parameter order. The sorted-args module eliminates cache fragmentation caused by tracking codes, parameter reordering, and cache-busting parameters.
Read More...EPEL powered by Cloudflare CDN. Fix your sanity
by Danila Vershinin, September 9, 2021
A simple recipe against a disaster. Here’s to make EPEL repository faster, by leveraging Cloudflare CDN
Read More...How to use multiple real IP headers with NGINX
by Danila Vershinin, July 10, 2018
How to pass real visitor IPs in nginx from two different cloud services.
Read More...CDN for WordPress
by Danila Vershinin, October 5, 2017
CDN for Wordpress. Do you need one? Yes, you do!
Read More...Recommended Web Hosting
