Faster retrieval, minimal delay — understanding persistent caching in Adobe Experience Manager Sites
At the speed of digital business today, every opportunity to drive conversion matters. In fact, a Deloitte study found that improving load times by just 0.1 second can boost conversion rates by 8–10%. Your CMS needs features that help your site load faster to give you the best opportunity to turn visitors into customers.
In this article, we’ll cover why persistent caching is an integral feature within Adobe Experience Manager Sites with Edge Delivery Services and how it enables you to achieve high performance with fast page load speeds.
Why is persistent caching important?
Persistent caching stores frequently accessed resources — such as HTML, CSS, and JavaScript — using global, cloud-native edge servers, which allows for faster retrieval and minimizes delay in loading page content. This is an improvement over a standard cache, in which resources expire after a predefined duration of time and require the web server to retrieve and regenerate the content from the origin. Standard caching usually means slow server response times and page load speeds.
Our persistent caching mechanism results in faster page load times and improved site performance, as measured by Google Lighthouse scores and Core Web Vitals.
How persistent caching drives results
With persistent caching, it is easier than ever to achieve high Google Lighthouse scores and healthy Core Web Vitals, which impacts:
- Search engine optimization (SEO) and traffic: In addition to other factors such as relevance, Core Web Vitals affect search rankings. Improving Core Web Vitals helps your site rank higher in search results to improve your site’s discoverability and attract more visitors.
- Bounce rate: Improved site performance and page load speeds provide a better user experience, reducing bounce rates.
- Engagement and conversion: With faster page load speeds, users are more likely to stay, engage with site content, and convert.
How does persistent caching work in Experience Manager Sites?
Experience Manager Sites with Edge Delivery Services uses multiple content delivery networks (CDNs) which provide high availability and multiple global caching servers close to the critical infrastructure. This ensures high performance by caching for as long as possible and only updating when there has been a change made to the site, such as publishing a new page. As a result, your site avoids any delays in content loading with code or design changes as it does not need to retrieve frequently accessed resources each time a visitor comes to your site.
Improved site performance, out-of-the-box
Persistent caching, along with our edge architecture, phased rendering, and real-user monitoring (RUM) services, provide a built-in performance-first architecture to deliver seamless user experiences with fast load speeds, high Google Lighthouse scores, and healthy Core Web Vitals.
To learn more about optimizing your web performance in Experience Manager Sites, check out our technical documentation.