[Summary] Fastly's features and functions [CDN]
This is Ohara from the Technical Sales Department
This time, we will write about the features and functions of Fastly
Fastly CDN Features
The Fastly CDN works by storing your website content on servers around the world and delivering that content to users quickly.
does this using
Varnish , an open-source web application accelerator which makes transmitting that content (content objects) more efficient by automatically storing copies in temporary intermediate locations.
It tracks each user's geographic location and ensures they connect to the closest server,
which speeds up your site by reducing the time they spend waiting for data to be sent from the server to them.
You also have complete control over how and when content is stored from your servers:
you can set a time to live (TTL) for any path on your site, the Purge API to instantly invalidate or purge any path on your site.
These tools allow your site to generate pages only once for millions of page views
, reducing user requests and server running costs.
Fastly CDN features
Fastly CDN also offers many advanced features that help you monitor how your data is accessed and customize content delivery
| ● Instant Purging | You have better control over how and when your content is updated. Instead of waiting up to 24 hours for data changes at the edge, you can update data when and as often as you need. |
| ● Real-Time Analytics | It provides a top-level view of your network and site performance, compiling relevant data about all your traffic every second into easy-to-read reports. |
| ● Conditions | It changes how requests are routed, what headers are sent, and how content is cached |
| Health Checks | If there's a problem with your server, you'll know about it immediately |
| ● Streaming Log | It can be quickly and easily configured to send information from your server to anywhere, in the format you need |
| ● Varnish Configuration Language (VCL) | You can modify almost every aspect of HTTP requests and responses. You can upload special configuration VCL files to your account |
| Fastly API | Fastly exposes an API that allows you to handle programmatic configuration, allowing you to write scripts to handle basic configuration tasks and create your own admin views |
How Fastly CDN works
Fastly's CDN provides CDN services from key access points to the internet, known as "Points of Presence" (POPs),
quickly placing POPs in locations where connectivity to the internet reduces network transit time when delivering content to end users.
deliver content objects quickly to end users when they request them,
Fastly's cache only receives and serves end-user requests for content objects that:
■ Which objects to cache
■ How long and who can access them
■ Whether objects are encrypted when sent over the Internet
■ When objects are removed from the cache service ...etc.
by specifically configuring Fastly's CDN service with these requirements,
a process we call "provisioning."
To provision Fastly's CDN service,
you must identify the application servers that will serve the original content objects for each of your various domains.
An application server
can be a physical server in a data center or hosting facility, an application running on a cloud service like AWS or GCP, or any combination thereof. We
will refer to these source servers interchangeably as "origin servers" and "backend servers" for short.
summary
In addition to using your own servers as the source, Fastly's CDN
also supports using a variety of cloud storage services as origins, including Amazon S3 and Google Cloud Storage (GCS).
We hope this article will help you become interested in Fastly's CDN
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