Our open-source plugin hooks onto essential WordPress actions, collects data about which pages have been changed, then passes it onto our API.
Backend API
The backend cache API interacts with the CDN and local server, scheduling refreshes and purges of the content that is passed to it.
CDN (StackPath™)
One of the highest-performing anycast CDNs in the world, we utilize StackPath to augment our caching backend across thousands of servers and perform multi-tiered cache replication for maximum hit ratios.
Origin Cache
Less frequently accessed content purged via LRU gets stored in a long-retention origin cache powered via NGINX.
Caching Rules
Our fully-optimized caching ruleset is deployed across every single server and built to ensure maximum compatibility and cacheability
Dynamic Pool
A finely-tuned dynamic resource pool is responsible for processing cache misses, or content that can't be full-page cached. Our custom PHP and MySQL runtime ensure ultra-fast page generation even without the cache.
Caching is the process of temporarily storing already-generated content as static resource. By default, WordPress runs on PHP, which will generate your website dynamically by processing the PHP and calling the database whenever a user visits your site. However, most sites don't change as often as every visit, so resources are being wasted. Caching is taking that generated output, and then storing that to serve to the next visitor. This saves server resources, and greatly increases the speed of your website as users no longer have to wait on PHP and the database (which is always slower compared to a proper caching system).
As an added benefit, caching also increases the scalability of your site by a 100x+ fold. Because significantly less resources are used to serve the cache compared to a dynamic page, more users and pages can be served at once!
Our caching system is fully compatible with other site-optimization plugins, such as Autoptimize. However, other caching plugins such as WP Super Cache are disallowed as they conflict with our servers. Caching can be managed directly in WP Admin via our in house plugin, eliminating the need for third party plugins, and is significantly faster than anything else a third-party can offer as our is closely integrated with the hosting environment.
We're one of the few, select hosts that utilized "Edge" (CDN) caching to accelerate and cache your site globally across various PoPs - most hosts utilize solely server caching - and, one of the even fewer that tier their caching for maximum hit ratios. Furthermore, other hosts tend to charge 200-500% more than what we do for plans that utilize edge caching.
In addition, we don't just rely fast caching to speed up your site - we utilize ultra-optimized PHP, NGINX, and MySQL pools to speed up dynamic requests too.
Nope! Our caching engine comes tuned out of the box for any kind of site. We expose options to change the TTL, purge the cache, disable caching, and enable Vary WebP support, as well as fine-grained matching for caching control, but your site will run perfectly well and fast without any configuration.
Based on our extensive experience and testing, 95% of Woocommerce stores and forums can be cached just like any other site, with the exception of a few pages that we automatically bypass. The shopping cart is rendered dynamically via wc_ajax_cart_fragment, so the cache will not affect the validity of the cart. Logged in users are automatically bypassed to ensure there are no information disclosure leaks.
Nope! Our WordPress plugin will do this automatically for your, whenever you edit or publish a new page, post, or product, make a change to your site's appearance, or install a new plugin. If there is something that requires a manual full cache purge, you can do this instantly, directly from WP Admin with one click.
Absolutely! Uncached pages may have a TTFB of 100-200 milliseconds, while pages served from our cache can usually be served to global audiences in under 30 milliseconds! Even if you only target local visitors, or have a small or lightweight site, caching can still accelerate the delivery of your entire site significantly.
Previously, the biggest issue with caching was stale content or potential feature conflicts - our solution eliminates both of these problems!
Nope! In fact, we run arguably the fastest dynamic backend out there, with basically zero resource contention, multi-layer bytecode and query caches and ultra high frequency CPUs.
That means even for pages, like the checkout page for a store, that cannot be cached, your site will be delivered extremely fast. We frequently see 3-6x speed ups in TTFB for uncached requests!
StackPath is a trademarks of StackPath LLC, registered in the U.S. and other countries.