Proxy cache servers are the building blocks of the CDN’s network data centers, strategically located around the world. These points of presence (POPs) are selected based on the traffic patterns of individual regions.
Highly active locations with many users malaysia phone number library may have several data centers, while remote locations with few users may have a single POP to cover a large geographic area.
Once in place, cache servers act as a repository for website content, providing local users with expedited access to cached files. The closer the cache server is to the end user, the shorter the connection time required to transmit website data.
In terms of hardware, a typical standalone cache server is a content delivery powerhouse with beefed-up RAM and SSD storage resources. For the faster option, RAM is used for high-priority resources, while SSD is used for the least demanding but still cacheable web files.
1. Empty Cache
Provides the ability to refresh cached files during a search. Note that some providers will only allow you to refresh the entire cache storage. Also, in some cases, your CDN provider will limit the number of purges in a given time period. The effectiveness of a purge request is measured in the time it takes to propagate throughout the network.
Always/Never Caching
It helps you to manually override cache headers by tagging files that should always be served or never be served from cache. This is an effective tool for cache management, especially when combined with bulk management options that allow you to apply these guidelines to entire groups of files (for example, all JPG files in the /template/images/ folder).
