All blog posts
Page 4 of 50
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Meet Image Optimizer in Compute: Flexible Image Workflows at the Edge
James Sherry
Fastly’s Image Optimizer is now available in Compute, letting developers build flexible, programmable image optimization workflows at the edge with full control and scale.
CDN & Delivery+ 2 more
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Build for Scale: Fastly’s Principles of Distributed Decision Making and Self-healing Systems
Brian Haberman
Learn how Fastly's distributed decision-making and self-healing systems build a resilient, high-performance network. Discover key benefits and examples.
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Fastly’s Pillars of Resilience: Building a More Robust Internet
Brian Haberman
Discover Fastly's Pillars of Resilience: unwavering availability, minimized latency, and disruption resistance for a robust internet experience with our global network.
CDN & Delivery+ 4 more -
Design for Chaos: Fastly’s Principles of Fault Isolation and Graceful Degradation
Brian Haberman
Learn how Fastly builds a resilient CDN through fault isolation & graceful degradation. Discover our principles for minimizing disruption & ensuring continuous service.
CDN & Delivery+ 4 more
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The New 2025 OWASP Top 10 List: What Changed, and What You Need to Know
Natalie Griffeth
The 2025 OWASP Top 10 list is here! Discover what changed, the two new categories, and how to secure your applications against emerging threats.
Security
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Getting the most out of Vary with Fastly
Andrew Betts
You can use the `Vary` response header in creative ways, including A/B testing and internationalization. At the same time, many people still use `Vary` badly or misunderstand what it does; in this post, we’ll provide an expanded guide, including some of the more exotic ways you can get value out of `Vary` in intermediate caches like Fastly.
Performance -
Fastly Packages Just Got an Upgrade
Dom Soegono, Delen Trance
Fastly's product packages just got even better. Check out the latest features coming to our Network Services package and more!
Company news+ 4 more -
Your most-requested update for Fastly developer accounts
Anil Dash
Fastly offers free TLS services so developers can test out Fastly with fewer barriers.
DevOps -
Best DDoS Mitigation Providers - 2025/2026
Natalie Griffeth
Discover the best DDoS mitigation providers of 2025–2026 with in-depth comparisons on capacity, automation, visibility, and integration.
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VCL Support for Parameters in Custom Subs
Katherine Flavel
Learn about Fastly's VCL syntax updates, including return values and parameters for custom subroutines, enabling better code reuse and abstraction.
DevOpsEngineering
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From Climate Week NYC to Fastly’s 100% Renewable Commitment
Eoghan Kelly
Fastly commits to 100% renewable electricity coverage across its global network and offices, advancing a sustainable internet and supporting customers' climate goals.
Company newsCulture
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Simpler, Better Pricing with Fastly
Lakshmi Sharma
Starting today we are officially launching simplified, flat-rate packages that get you more across Network Services, Security, and Compute offerings. It’s simple to try and buy Fastly with predictable billing.
Product+ 2 more -
How to Tame Varnish Memory Usage Safely
Daniel Axtens
How Fastly turned a shelved Varnish idea into 25% fewer memory writes and real system-wide gains.
CDN & Delivery+ 4 more
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In AI We Trust? Increasing AI Adoption in AppSec Despite Limited Oversight
Natalie Griffeth
AI adoption in AppSec is soaring, yet oversight lags. Explore the paradox of trust vs. risk, false positives, and the future of AI in application security.
SecurityIndustry insights
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DDoS in September
Liam Mayron, David King, + 1 more
Fastly's September 2025 DDoS report details modern application attacks. Get insights and guidance to strengthen your security initiatives.
SecurityIndustry insights
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A Smarter ACME Challenge for a Multi-CDN World
Shiloh Heurich
Optimize your multi-CDN setup with Fastly's new dns-account-01 ACME challenge. Eliminate label collisions and enhance certificate management.
CDN & Delivery+ 3 more
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The CDN Showdown: Fastly Outpaces Akamai in Real-World Performance
John Agger
As user expectations rise and milliseconds define outcomes, choosing a modern, high-speed CDN is no longer optional but a strategic imperative. Independent Google data shows Fastly consistently outperforms Akamai in real-world web performance.
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Make Sense of Chaos with Fastly API Discovery
Lorraine Bellon, Anna Jensen
Discover, monitor, and secure your APIs with Fastly API Discovery. Get instant visibility, cut the noise, and keep your APIs secure and compliant.
SecurityProduct
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CISO Perspective: Q2 2025 Threat Insights Report
Marshall Erwin
Explore Fastly's Q2 2025 Threat Report through our CISO, Marshall Erwin's eyes. Uncover bot traffic insights and key security practices.
SecurityIndustry insights
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Request Collapsing Demystified
Stephen Crim
Boost website performance with request collapsing! Learn how it improves efficiency, reduces origin load, and optimizes caching for a snappy user experience.
Performance+ 2 more
