Fastly Content Delivery Network

Fastly CDN: Deliver fast, personalized experiences globally

Are you moving applications to the cloud, digitally transforming your organization, scaling your development practices, or just needing to deliver content and applications faster via mobile and web? Fastly offers everything you need from a modern CDN, from effortless scale and built-in security to programmable control and full visibility.

It’s time your CDN did more. If reliability, speed, and the freedom to customize delivery is critical for you, then Fastly’s CDN with real-time observability, programmatic control and baked-in security helps you deliver the dynamic experiences today’s users demand.

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Real-time visibility

Real-time logs, streamed from our edge, give near-instant visibility into traffic trends, performance, potential problems, and threats.

Insights you can use

Logs provide an important resource for troubleshooting connectivity problems, pinpointing configuration areas that could use performance tuning, and identifying the causes of service disruptions.

Logging provider integrations

Instantly stream your log files to a logging provider of your choosing, and dig into any aspect of a request or response to diagnose problems and understand how your customers are engaging with your app.

Support for agile DevOps

The days of agile development efforts getting stuck in release queues are over. With our real-time visibility and control we integrate into your existing workflows so you can deploy new software or feature enhancements weekly, daily, or even multiple times a day.

Fastly’s fully configurable CDN enables you to change content quickly, even event-driven content. Easily adjust your configuration settings via an API and roll back changes as needed without having to reach out to Professional Services.

Rapid content changes

Fastly’s fully configurable CDN gives customers fine-grained control over how their content is cached.


Our full-featured API makes it easy to change configuration settings - customers can instantly purge stale content, reset time-to-live, clear cache or turn on new features all through an API call.They can create custom caching rules, upload them to our POPs and activate/deactivate them on the fly all without having to engage with Professional Services.

Stress-free rollbacks

We lock versions of services already activated making rollbacks hassle-free and facilitating easier version control.

An IDC MarketScape Worldwide Commercial CDN Leader

Recognized in 2022 as a Leader by IDC for our innovative, developer-focused content delivery services. 

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Fastly Named a Customers' Choice for Global CDN 2022

Fastly received the highest customer rating of 4.8 out of 5 stars, and 97% said they would recommend it to other customers. 

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Built-in security

Our DDoS, next-gen WAF and TLS offerings provide organizations protection and control, without sacrificing performance and velocity. We have built security into the fabric of our platform, alongside performance, providing developers and security operations teams with a fast, safe environment to create, build, and run modern applications.

Faster purging

Our software-defined network gives us incredible performance gains when it comes to purging, which is core to CDNs. We can purge stale content in 150 ms globally. Coupled with batch purging and surrogate key purging, customers can effectively cache highly dynamic content at the edge with the peace of mind that it can be purged from cache globally in milliseconds.

Higher cache hit ratios

Our modern network design includes fewer, more powerful POPs, allowing customers to cache more at the edge for longer, including rapidly changing content like inventory, pricing or news. This translates into better cache hit ratios meaning web and mobile users get quicker response times and downloads.

Better performance

Dynamic site acceleration (DSA) features come standard for speedy content delivery that makes a positive impact on conversion and retention rates, Search Engine Optimization (SEO), and ad revenue.

Savings and efficiencies

Our configurable CDN allows customers to save on costs. Because we can purge so quickly, customers can cache more at the edge, even API responses. This minimizes trips to origin, reducing infrastructure and egress costs. Also, full configurability means changes are automatically passed from development to production without having to engage Professional Services.

Build on Fastly's Modern CDN so you can:

  • Improve your search engine rankings
  • Decrease web and application load times
  • Improve your user experience
  • Increase user engagement
  • Seamlessly scale
  • Enjoy real-time visibility and control
  • Streamline workflows
  • Have built-in security
  • Reduce infrastructure costs


Streaming media delivery

Low-latency streaming delivery, with minimal rebuffering events, is the key to providing broadcast-quality video experiences on any device, anywhere. Fastly’s edge cloud platform is built for performance: with a 252+ Tbps capacity and growing, we scale to meet the needs of the industry’s largest video and streaming services.

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TLS encryption

Secure your apps and websites quickly and easily with our Fastly TLS or Platform TLS solutions — designed for scale and performance.

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IP Addresses

Get dedicated IPs for your domain that aren’t shared or used by any other domains. Or you can supply your own IP that can be routed and served by Fastly with Subscriber Provided Prefix (also known as BYOIP).

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More ways to connect

Increase performance even further by bringing your end users and/or origins closer to Fastly’s edge POPs. We can connect via your cloud provider, a private network connection or an internet exchange point depending on your business requirements.

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Key features

Full control of HTTP headers

Fastly gives you complete control over HTTP headers so you can determine how you want your content served, including the ability to send one set of instructions to your Fastly services and another set of instructions to downstream caches, proxies or browsers.

Dynamic ad insertion preparation

Fastly allows you embed custom metadata or ad markers about a stream into video segments at specified time instances.

API configurability and Fastly web interface with usage graphs/maps

The API is organized into collections of endpoints that allow manipulation of objects related to Fastly services and accounts.

Static, dynamic and video content delivery

Fastly does not charge separately for web vs. streaming content nor for features like instant purging that make supporting dynamic and event-driven content possible. We provide one programmable service that optimizes all types of HTTP content.

Edge logic and advanced content delivery control

Fastly gives you direct access to content delivery, control and edge logic capabilities.

Time to Live (TTL) controls

Content expiration is controlled via Time to Live (TTL) settings you configure that work as timers on your cached content.

Dynamic site acceleration

Fastly’s dynamic site acceleration comes standard for speedy content delivery that makes a positive impact on conversion and retention rates, SEO, and ad revenue.

Dedicated IPs

Can be used to support TLS certificate management for non-SNI clients, to support custom cipher suites or IP-to-service pinning, or to help manage zero-rated billing endpoints.

Supplier Provided Prefix (BYOIP)

Allows you to have your IP spaces announced, routed, and served by Fastly infrastructure for use with production services.

Real-time control
Instant purge

Remove your cached content worldwide on demand, within milliseconds, when your dynamic or event-driven content changes.

Surrogate key purging

A surrogate key allows you to selectively purge related content.

Soft purge

Allows you to mark content as outdated (stale) instead of permanently purging and thereby deleting it from Fastly's caches.

Real-time log streaming

To help you tune the performance of your Fastly services, we support real-time log streaming of data that passes through Fastly.

Grace mode

Grace mode shields application servers by instructing Deliver@Edge to continue to serve stale or expired (but likely still valid) content to end users for a set amount of time.

Origin health checks

Fastly performs health checks on your origin server based on the check frequency setting you select in the create a new health check page.

Transport Layer Security (TLS)

Fastly supports a variety of Transport Layer Security (TLS) services that allow websites and applications to serve traffic over HTTP Secure (HTTPS), providing added privacy and data security for your services and end users.

Content protection

Fastly can encrypt videos packaged into HLS and MPEG-DASH and supports multiple Digital Rights Management (DRM) technologies.


Fastly can automatically detect and, in real time, route around transient connection problems that occur when fetching content from your origin servers or when delivering content to end users from Fastly's edge cloud.

Always-on DDoS mitigation

Fastly's globally distributed network was built to absorb Distributed Denial of Service (DDoS) attacks.


Fastly caches your content close to end users throughout the world so it can be served more quickly and reduce load and cost of your origin services

Content compression

Fastly can compress your content in real-time at the edge, providing snappier end user experiences and off loading content compression from your origin services.

Origin shielding

You can designate a Fastly point of presence (POP) to serve as a shield for your origin servers, enabling increased cache hit rates for your Fastly services and potentially protecting your origin servers from unexpected spikes in requests.

Support plans

Fastly offers several support plans to meet your needs: standard, gold and enterprise.


Free of charge and available as soon as you sign up with Fastly.


Proactive alerts for high-impact events, expedited 24/7 incident response times, and a 100% uptime Service Level Agreement (SLA) guarantee.


Gives you the added benefits of emergency escalation for support cases and 24/7 responses for inquiries (not just incidents).

Looking for more?


Your guide to the modern CDN


Why having more POPs isn’t always better


Fastly has been named a Leader in IDC MarketScape: Worldwide Commercial Content Delivery Network Services 2022

Case study

See how Stripe uses Fastly

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