Acquia Edge Standard uses a global Content Delivery Network (CDN) to accelerate your digital experiences. To store content across a global network of Points of Presence (PoPs), Edge reduces latency and improves load times.

This document provides instructions on how to navigate to and manage the Acquia Edge Standard cache.

Navigation 

In the Acquia Edge console, all cache-related controls and reporting are in the Performance tab.

Managing your cache 

To ensure that users refer to the latest version of your site, you can manually clear the CDN cache with the Purge Cache tool.

Purge methods

• Purge path: Clears specific pages or assets by their file path. This is the most efficient method to use if you want to refresh specific content with no impact to the rest of your cache.
• Purge cache tag: Clears content associated with specific system-generated tags. This is particularly useful for Drupal applications where a single content update affects multiple pages that share the same tag. Some examples are sl36b and dh65.
• Purge everything: Clears the entire cache for all domains in your application. Use this for major site-wide updates or code deployments.
  • Purge domains
  • Purge application

How to purge your cache 

Follow these steps to clear content from the Edge network:

1. Log in to the Acquia Edge console and select the Performance tab.
2. Select Purge Cache on the top right of the dashboard.
3. Select one of the three radio buttons:
   • Purge path
   • Purge cache tag
   • Purge everything
4. Enter details for Path or Tag:
   • If you selected Purge path, enter the relative URL/path, for example, /about-us.
   • If you selected Purge cache tag, enter the specific tag string as provided by your application.
   • If you selected Purge everything, select domains or applications, respectively.
5. Select the domain or application and then click Purge (the blue button) at the bottom of the dialog box.
6. Confirm on the confirmation dialog modal view.
7. Select Close to return to the dashboard.

Best practices

• Use Path or Tag Purge when possible: When you purge everything, a Cache Miss error occurs for all subsequent traffic and the load on your Acquia Cloud platform is increased.
• Validation: You must always configure the domain status if you want to use the Purge feature.

Cache configuration

The Edge Standard user interface provides no end user configurable cache settings beyond the purge functionality. The Edge Standard CDN cache will respect Expires and Cache-Control header directives sent from the site. 

Cache management