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WordPress, 404s, and the Cost of a Typo A request arrives at a WordPress site. The URL does not exist. At that point, you might expect the web server to reject it and move on. Instead, WordPress can do a surprising amount of work before it can confidently say: 404. Nothing here. That always...

You seem to have a few fundamental misunderstandings. `Cache-Control` is intended for the browser cache to handle static assets (CSS, JS, images, etc.); the main document must never be cached there. Caching dynamic assets in the browser is arguably the biggest mistake you could possibly make...

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...

LiteCache Rush is not a LiteSpeed product!

In a technical context, nothing at all should be translated, because any attempt, regardless of the language, is doomed to failure. Did you know, by the way, that the English language originated in German, and that most British people have German ancestors? ;)

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...

You should check this: https://www.cachecrawler.com/Rush:::45.html

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...

Congratulations! Sue LiteSpeed for violating the RFC! ;)

That's a given, but don't try to apply your "personal logic" to how something should work.

I appreciate your efforts to block scrapers and other unwanted requests. However, be aware that this isn't possible with conventional methods. The challenge lies in identifying these unwanted requests, but you only have known HTTP parameters at your disposal, which are very easy to mask. So...

LSE = LSWS (LiteSpeed Enterprise Web Server) also follows RFC, but you should use LSWS support for related questions or issue. The behaviour is different. https://www.litespeedtech.com/support/forum/

OLS is not Apache. If OLS doesn't use status code 500 if a status code outside the valid range is used this is just an undefined case in OLS. You can complain about this, but before you do, you should first familiarize yourself with RFC. btw. Blocking requests by IP address is extremely...

Any status code smaller 100 and higher 599 is invalid. Using status codes outside this range causes error 500, so this is not a OLS bug or malfunction. https://www.rfc-editor.org/rfc/rfc9110.html

Don't let users believe a "simple script" can warmup the LScache. TTL for CF cache is only 1 week and only available to the node that is next to user location. CF has ~ 165 nodes, so have fun with trying to warmup. The same with quic.cloud, but TTL is only 24h.

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...

WordPress multisite is unsupported

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...