Category: Glossary

A plugin and service that automatically serves optimized images (compressed, resized, and in modern formats like WebP or AVIF) tailored to the visitor’s device, screen size, and browser. It reduces load times and improves performance using a CDN and smart image delivery.

Special headers used by Akamai (typically Pragma: akamai-x-cache-on, akamai-x-get-true-cache-key, etc.) to expose internal cache and delivery information for debugging purposes. They are often used in staging or diagnostic requests.

Yellow Duck is a third-party tool that allows users to stream live content to Instagram Live using RTMP (Real-Time Messaging Protocol). It generates a temporary stream key and server URL to connect professional broadcasting software like OBS or vMix to Instagram.

Special HTTP response headers used by Akamai (a CDN) to help diagnose delivery and caching issues. These headers provide insights like cache status, edge server info, and TTL (time-to-live) values. Common examples: X-Cache, X-Akamai-Staging, X-True-Cache-Key.

Purge by Pattern means clearing cached content that matches a structure or pattern. This allows you to efficiently invalidate a group of related files without listing each one explicitly.

Purge by URL refers to removing cached content for specific, individual URLs. This method is useful when only a few files or pages have changed, allowing you to refresh those items without impacting the rest of the cached content.

Purge All means clearing all cached content across zones of a CDN resource. This ensures that every request to the CDN fetches the most up-to-date content from the origin.

A DNS record that holds administrative information about the domain zone.Example:

You can disable Cloudflare by:

Likely refers to “prefetch”, a browser mechanism where certain resources (e.g., scripts, styles, images) are downloaded in advance to speed up navigation. Can also relate to ads refreshing before full page loads.