REDIS / NGINX caching

Hello, my friend,

First of all what our plugin does is independent of what Redis or WP-Rocket do. So there should be absolutely no incompatibilities there.

About NginX, if you use it as your main web server, then it is totally supported, but you need to edit its configuration file manually, because it is now accessible like Apache’s .htaccess file.

If you use NginX as a caching server, then you are actually using it as a tiny CDN. In this case you need to enable the CDN support feature in the plugin settings page. Unfortunately, this mode is a bit experimental, because caching servers deliver content themselves and, thus, your WordPress installation (and consequently our plugin) does not get the chance to handle images for every request. Experimental means that a) we automatically add url parameters on images via Javascript, b) we miss CSS background images and c) we might miss very few images that might get the chance to load in full size before our Javascript runs. We understand this is a drawback, but caching is… caching and CDNs are… CDNs.

Now, about your last question, the answer is that it depends. But the truth is that one cannot always rely on using the img srcset attibute in order to load smaller image sizes per device. WordPress itself and plugins like Elementor use WordPress thumbnails for this and WordPress thumbnails are not optimised per device size and also they might be cropped. So the Adaptive Images plugin will make sure that all your images are dramatically downsized uniformly, even if they do not use the img srcset attribute.

As a conclusion, from all the above, I guess the only thing to actually care/worry about is how to integrate the Adaptive Images plugin with a caching server like NginX or a CDN. The rest seems to be pretty streamlined so far.

Let me know if I can help any further!

Cheers,
Takis

I would love to be able to test and debug your setup if it is possible. NginX is indeed a very important server and I always seek to cover all possible situations.

Is there a demo website that I could check?

Also, if there is the option of giving me FTP access to a demo installation, then I could also debug this first hand. Feel free to email me at info [at] nevma [dot] gr.

Cheers,
Takis

Well, we do not need GDPR to respect customer data now, do we? 🙂 This should go without saying. A staging website would do just fine!

But I think you misunderstood me when I asked for FTP access. This was not to be taken literally. I assure you I am more that quite security aware. Think of it this way: my plugin accesses a WordPress files and then delivers them to the web. Actually, one has to be super security aware, in order to take all the necessary precautions that no sensitive files are leaked. For instance the wp-config.php, or the .htaccess or even files outside the WordPress installation!

Anyway, this is besides point. Without file access I cannot debug anything and I cannot make changes to the NginX configuration file which is usually the issue with NginX installations. I will totally respect it if you do not wish to give me access, but there is no other way really. And, all in all, it is still supposed to be a staging website with nothing sensitive in it, right?

Cheers,
Takis

Hello, @zebrahosting,

Have you had any updates on the issue? Would you like us to start looking at it from scratch with a fresh start? We are here any time you wish! 🙂

Cheers,
Takis