Cachelis Engine
The engine on our side. It opens your pages in a real browser, works out what a fast first screen needs and builds an optimized version of every page.
Cachelis / WordPress speed
Cachelis is a managed WordPress speed optimization system by sauzend. Our separate engine opens every page in a real browser, builds an optimized version of it, and visitors receive ready-made static HTML without running WordPress, PHP or the database.
Before you buy, we test Cachelis on your site for free, so you see the result before you pay.
From €40 per year, depending on the size of your site. Our team handles setup, configuration and support; only a lightweight plugin is installed on your server.
What is Cachelis
Cachelis is an alternative to WordPress caching and optimization plugins. The key difference: the heavy optimization work is done by our separate engine, not by the client’s server. We connect, configure and maintain the system ourselves.
Cachelis has two parts that work together.
The engine on our side. It opens your pages in a real browser, works out what a fast first screen needs and builds an optimized version of every page.
A lightweight plugin on your site. It connects the site to the engine and serves the ready-made fast pages to visitors.
The problem
WordPress builds a page on every request: it runs PHP, queries the database and loads the theme and plugins. Themes and page builders add a lot of CSS and scripts that not every page needs.
Each page is built again, so the site waits for PHP and the database before the browser can start drawing anything.
The theme and builder load styles and code for the whole site, while a given page needs only part of them.
Typical optimizers often strip hover and animation styles or classes added by scripts. Menus, sliders and pop-ups break.
Optimizing and caching on the same server uses its resources, and the settings have to be tuned and tested by you.
Benefits
Anonymous visitors get ready-made static HTML without running WordPress, PHP or the database.
Every page is rendered for mobile, tablet and desktop, so first-screen styles are accurate for each.
Hover and focus states, animations and classes added by slider, menu and pop-up scripts are preserved.
Critical CSS is inlined, scripts are deferred and the main above-the-fold image (LCP) loads with priority.
After a page is saved, visitors see current content and the optimized version is rebuilt automatically.
The heavy work happens on our side; your server just serves finished pages.
How it works
The engine opens every page in a real browser at three screen sizes: mobile, tablet and desktop.
For each page we detect the CSS that is actually used. The rest is removed, while hover, focus, animations and script-added classes are kept.
Critical CSS is inlined into the page, scripts are deferred and the main above-the-fold image loads first.
The finished page is saved as static HTML.
Anonymous visitors receive this version immediately, without WordPress, PHP or the database.
Logged-in users, the admin area, cart and checkout keep working as usual, in dynamic mode.
Automatic updates
Cachelis tracks changes on the site by itself, so nobody has to think about the cache.
As soon as a page is saved, the previous fast version stops being served and visitors see current content. About 30 seconds later the page is optimized again automatically.
Outdated content is never shown, so neither you nor your editors need a “clear cache” button.
Pages that return errors or 404 are recorded during scanning, which also helps you find broken links on the site.
Comparison
We compare approaches, not specific products: every tool has its own settings and use cases.
| Criterion | Typical cache plugin | Cachelis |
|---|---|---|
| Where optimization runs | On the site’s server, using its resources | On our separate engine |
| How the needed CSS is found | Rules or code analysis, often the same for every screen | Rendering in a real browser for mobile, tablet and desktop |
| Hover, animations, script-added classes | May disappear when “unused” CSS is removed | Preserved |
| Serving pages to anonymous visitors | Depends on settings and hosting | Ready-made static HTML without WordPress, PHP or the database |
| Updates after editing | Often needs a manual cache purge | Old version withdrawn at once, new one optimized automatically |
| Who configures and monitors it | The site owner or a developer | The sauzend team |
| What is installed on the server | A plugin that does all the work | Only a lightweight connector plugin |
Security and reliability
Data exchange between the site and the engine is protected with a cryptographic signature.
Only the sauzend team can manage the engine.
Only the plugin is installed on your server; the heavy work runs on our side.
Admin, accounts, cart and checkout work as usual, without cached pages.
Who it is for
Compatible with Gutenberg and Elementor.
Service pages, contacts and enquiries: a fast first screen for visitors from ads and search.
Pages with large images, animations and forms where every second counts.
Blogs and media sites with many pages that are updated often.
Catalog and product pages are served fast, while cart and checkout stay dynamic.
Several client WordPress sites under one support service, without tuning a plugin on each.
Results
Cachelis already runs on real client websites. For your site we record the result with the same measurements before and after setup.
Time to first byte (TTFB) for the home page and key pages.
LCP, CLS and INP on mobile and desktop.
Score and recommendations before and after setup, on the same pages.
Case studies with figures will be published on this page once clients approve them.
Pricing
The price depends on the size of your site: number of pages, theme and whether it is a store. We confirm the exact amount after the audit, before setup.
from €40/ year
Existing sauzend clients get 50% off
Connect CachelisBefore you buy, we test Cachelis on your site for free, so you see the result before you pay. Try it free →
Getting started
Send your website address and contact details. We ask what the site is built with and what bothers you most.
We measure the current speed of key pages and check the theme, plugins and hosting.
We install the plugin, configure the engine for your site and check pages at every screen size.
We monitor the system, updates and page errors and show you the before-and-after result.
Questions and answers
Cachelis is a managed WordPress speed optimization system by sauzend. It consists of the Cachelis Engine, which builds optimized versions of pages in a real browser, and the lightweight Cachelis for WordPress plugin, which serves those pages to visitors.
Typical caching and optimization plugins optimize on the site’s own server and are configured by the owner or a developer. With Cachelis, optimization is done by our separate engine: it renders every page in a real browser at three screen sizes and keeps the styles the page needs. Our team takes care of setup, configuration and support.
You do not need a separate server: only the plugin is installed on your hosting. During the audit we check your hosting and, if fast page delivery needs web server settings, agree them with you in advance.
Yes. Cachelis is compatible with Gutenberg and Elementor. Pages are rendered in a real browser, so the builder’s styles and scripts are taken into account exactly as a visitor sees them.
Yes. The catalog, categories and product pages are served as fast static pages, while the cart, checkout and customer account work in normal dynamic mode.
Yes, Cachelis works alongside a CDN. During setup we align the CDN cache rules so visitors do not get an outdated version after pages are edited.
As soon as you save the changes, the old fast version stops being served and visitors see current content. About 30 seconds later the page is optimized again automatically. There is no need to clear the cache manually.
Search engines receive the same content as visitors, only faster: we never serve different pages to bots. Google uses page speed and Core Web Vitals among its page experience signals, and Cachelis also records pages with errors and 404s during scanning, which helps you find broken URLs.
Only the Cachelis for WordPress plugin is installed on your server. Data exchange between the site and the engine is protected with a cryptographic signature, and only the sauzend team can manage the engine.
Cachelis costs from €40 per year; the exact price depends on the size of your site: number of pages, theme and whether it is a store. Existing sauzend clients get a 50% discount. Send an enquiry and we will run a speed audit and confirm the price before setup. Before you buy, we can test Cachelis on your site for free.
Connect Cachelis
Send us your website address. We start with a speed audit and take care of setup and configuration.