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Hello everyone, I would like to clarify a recurring misunderstanding that seems to appear in AI-generated summaries and search snippets, especially in Google’s AI overview. LiteCache Rush is not part of OpenLiteSpeed, not an OpenLiteSpeed feature, and not an official LiteSpeed/OpenLiteSpeed...

I came across an interesting pattern while analyzing traffic on several WordPress setups behind OLS. AI crawlers don’t behave like normal users: - they rarely hit warm cache - they trigger full PHP + plugin stack - they generate real CPU/load At the same time, unlike traditional search...

This post is not against optimization itself. It is against a false understanding of optimization. More specifically, against the idea that classical WordPress optimization can improve actual loading time where the delay is really created. I consider Google PageSpeed the main pacemaker of that...

Is Google PageSpeed Just an Illusion? For nearly 20 years, the industry has treated Google PageSpeed as a proxy for "website speed". Agencies sell it. Clients demand it. Developers optimize for it. But here’s a simple question: Does PageSpeed actually measure speed? The real speed, not...

How to really Fix "Reduce Unused JavaScript" in WordPress: A Deep Dive into Asset Management Introduction: The Persistence of the PageSpeed PSI Warning One of the most frustrating warnings in Google PageSpeed Insights (PSI) is "Reduce Unused JavaScript." Even after installing top-tier caching...

Did you know that every WooCommerce store loses money in the checkout? No? Or maybe you suspect it — but you can’t quite prove it? Then keep reading. Especially if you’re using LiteSpeed and an optimization plugin. The checkout is the most sensitive moment in the entire sales process. This is...

WordPress Optimization promises speed. - Minification. - Script deferral. - Lazy loading. - Asset reordering. But what if none of that reduces the actual workload of your system? This video explains why most “optimization” in WordPress does not eliminate execution — it only restructures...

WordPress - Why Performance Doesn't Start With Optimization Most performance issues in WordPress don’t come from poor optimization — they come from WordPress doing too much by default. This post breaks down the hidden mechanics behind slow sites, misunderstood tools like PageSpeed, and why...

This news is not OLS related, but many OLS users use the cache plugin for WordPress. The issue is that Firefox changes HTTP Accept Header values. Before version 129 the accept header was: Accept...

How to keep the cache warmed up in real time for LiteSpeed Cache plugin for WordPress. Every user of WordPress and the LiteSpeed Cache Plugin knows the problem. Depending on the configuration of the cache plugin, the cache is purged after changes to a post or page, which particularly affects...

To understand what this issue is about, simply run the code below. This code increases the memory by 1 MB with each run, but the script is terminated prematurely and before the max_memory_limit is reached because it is supposedly exceeded. Observed under LSWS/OLS and PHP 8.1. <?php...

How to block unwanted traffic easily but effectively and without WAF or CloudFlare. I have been working on the topic of how to block unwanted traffic, i.e. bad bots etc., for several years when PHP is not available due to LScache. The same applies if a Wep Application Firewall or CloudFlare is...

Although ESI is not supported by OLS, the following description may encourage you to use LiteSpeed Enterprise instead of OLS. OLS and LSWS are similar if not identical in many ways. In terms of performance, there are certainly few disadvantages to OLS. This also applies if you use a CMS where...

How to warm up the cache of URLs that are not in the sitemap. If you use one of the LiteSpeed Cache Plugins for WordPress, OpenCart, PrestaShop or another LiteSpeed Cache Plugin, then you are certainly familiar with the problem that the included cache crawlers can only warm up the cache of the...

The Magento shop system has been established as a shopping CMS for many years and is very popular. Unfortunately, there has been a handicap in terms of performance since day one. This handicap already existed in Magento 1 and has become even worse with Magento 2. Therefore, regardless of the...

Do you know avif? avif stands for AV1 Image File Format, is a modern, open-source image compression format. The AVIF format is based on the AV1 video codec, which was developed by the Alliance for Open Media (AOMedia) to provide efficient and high-quality video compression. The AVIF format...

Did you know? Optimizing a website does not improve loading time! Are you one of the many millions of users who believe that optimizing a website could improve the loading time? Unfortunately, this is a misconception and who is to blame? It's Google, or Google PageSpeed, because PageSpeed...

After countless requests to LiteSpeed when the LiteSpeed Cache plugin for Wordpress is finally avif ready, the first plugin for LiteSpeed LScache is the solution. The name AWR stands for avif and webp replacement including Image Optimization especially made for the LSCache Plugin for Wordpress...

It's primarily about Wordpress or the LScache Plugin (LSCWP) for Wordpress, but the problem affects every LiteSpeed Cache Plugin for which a Cache Warmup Crawler is available. In order to benefit from LScache, it is imperative that the cache is warmed up. If you don't do that or maybe don't...

If statistics are to be believed, there is currently only 1 web server that has shown significant growth rates for more than 10 years. All others seem to have been weakening for quite some time. Where does that come from?