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Yes, of course. If you delete css file your theme will break, but removing css will not improve load time. CSS are not too big. Reduce the number of fonts, store them on your server and not at Google. Removing Facebook Like will also reduce load time. With this you can improve load time up to 50%.

Since I am using LiteSpeed I always use local PC with Powershell and cURL for Windows to warmup the cache, because it is faster than every other method. For customers I am currently checking LScache crawler if the crawler meets customer's requirements. While checking the code of the crawler...

Yes and they are not optimized enough. Use https://tinypng.com/ to compress them for better performance or use LiteSpeed plugin build-in function to optimize your images.

Use online .htaccess generator to block certain IP(s). Scroll down to ""Block or Allow an IP" https://www.htaccessredirect.net/

The problems you have to optimize your website is not only unused CSS. It is starting from overdozed code in your template and ends with oversized images. If your are not a developer, search for WP plugins they can optimize your page and/or use optimize functions in LiteSpeed plugin for WP.

I am not shure if am right because I don't know LiteSpeed plugin for Joomla, but I believe LiteSpeed plugin for Joomla supports only Joomla itself, but not add-on applications like Hikashop.....

Add an item to cart and press F5 to reload page after you've added item to cart. Then check shopping cart box in header.

If you have activated functions for optimizing in Litespeed plugin, disable all these functions and check it again. If everything is okay again activate functions again, but not all at the same time. Do it step by step and after every step check again. It is possible that there are functions in...

You don't need additional plugin for caching and/or optimizing. LiteSpeed cache plugin is the all in one solution for caching and optimizing. If you use additional plugin(s) and LiteSpeed cache plugin it will force issues and conflicts with page load behavior like yours you have posted.

Do you use LiteSpeed cache and WP-Super-Cache at the same time? If yes, disable WP-Super-Cache.

If you use CMS where is no LScache plugin available either you need one or you have to develop it. For ecommerce sites "a whole must be punched" for areas they may not be cached like shopping cart and much more. For this "Edge Side Includes" (ESI) is necessary to get an ecommerce site work with...

https://www.litespeedtech.com/support/wiki/doku.php/litespeed_wiki:lslb:requirements

There must be a greater difference. If I use lscache_runner UA for cache warmup with curl instead of crawler and if I request all cached pages again, the amount of headers is much smaller and I get status code 201 instead of 200.

No, I can't, sorry. After I didn't get this information from LiteSpeed paid support, because they also don't know it, I worked on it for some weeks to find it out. Now, I know what has to be done. I can't give you this knowledge because that's part of my business. I hope you understand this...

@NiteWave && @Andy Badwool You are both completely wrong. LiteSpeed has its own logic how to handle <esi:inline

If you don't have LiteSpeed Cache plugin installed nothing happends and everything is the same as before without LiteSpeed cache. But you should try LiteSpeed cache plugin for Wordpress. It provides you not only with a server side cache funktion and has a lot of unique functions to optimize your...

I don't kidding you! Why should I do that?! I only wanted to be safe don't tell you information you don't need, so please don't understand my reply wrong, okay? As I already told you, the information about how to use ESI as inline tag isn't public and is undocumented, but it works because I...

There are different ways to use ESI. <esi:include basically doesn't need <esi:inline, but if you want to use ESI inline you must combine <esi:inline and <esi:inlude. Have you already tried the ESI example at...

Before you are able to get what you want, you must understand basics about ESI and how LiteSpeed modifies (undocumented) ESI language. You find information about it at: https://www.litespeedtech.com/support/wiki/doku.php/litespeed_wiki:cache:no-plugin-advanced:esi-support.

To get PrestaShop run with LiteSpeed LScache you need ESI support, but Open LiteSpeed doesn't support ESI.