HTTP Caching
Best practices for syndication feed caching
Five best practices to reduce bandwidth requirements for feeds (Atom/RSS). Tips for reader and publisher implementations.
Hypertext
HTTP Caching
Syndication feed deltas help reduce subscription bandwidth costs
Feed delta updates strip away feed entries that the subscriber has already download and only transmits the update delta consisting of new entries.
HTTP Caching
The Vary HTTP response header explained
Learn about the HTTP Vary response header and its important role in HTTP content negotiation and caching. Vary is an important but little-known part of HTTP.
Hypertext
Why are ‘what to read next’ article recommendations so terrible?
The Recommended articles sections below articles are a mess. Incredibly simple steps could improve the recommendations.
Apache HTTPD
New Brotli compression filter module now in Apache Web Server
Learn how to enable the new Brotli compression module alongside Gzip compression in the Apache HTTPD server.
Hypertext
Image quality degradation as a hotlink deterrent
You can deter image hotlinking and reduce the associated bandwidth costs by reducing the image quality instead of outright blocking it.
HTTP Caching
Cache-Control plugin for WordPress
Take control over your WordPress site’s HTTP Cache-Control response header directives with my easy-to-use WordPress plugin.
Web Analytics
Apple News app getting its own User-Agent in iOS 10
Apple News app to stop pretending it’s the Safari browser. The new User-Agent makes it easier to measure success the App with existing web analytics solutions.
Hypertext
Attack of the AppleNewsBot
A bug in the Apple News crawler caused it to get stuck in a loop sending 100+ requests/second to websites with HTTPS certificates issued by Let’s Encrypt.
Apache HTTPD
Apache bug leads to websites dropping out of Yandex search
An Apache server bug caused HTTP/2 websites to drop out of the Yandex search engine. Here’s how to work around the bug to get your site back into the Yandex index.
Hypertext
How to block common WordPress vulnerability probes
Protect your WordPress installation against malicious bots probing for known WordPress core and plugin security vulnerabilities.
Hypertext
Block repeated 403 Forbidden requests with Fail2Ban
You’ve already blocked access and return HTTP 403 Forbidden. Here’s how to make Fail2Ban block users and bots still hammering your server with repeated requests.