All blog posts
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DDoS in April
DDoS April 2025 report: US attacks surge. Get key insights, traffic trends, and actionable security guidance. Protect your apps now!
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DDoS in May
DDoS May 2025 report: 2 new attacks every minute. Get key insights, traffic trends, and actionable security guidance.
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Detection to Mitigation: Ensuring Efficacy Against DDoS Attacks
Fastly's DDoS Protection update, Attack Insights, offers detailed event and rule info to verify mitigation efficacy and boost application security.
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Building a better application DDoS solution
Fastly DDoS Protection offers rapid deployment and automatic defense against DDoS threats, helping maintain the performance of your applications and APIs in a volatile digital landscape.
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Optimizing your multi-CDN infrastructure to improve performance
Learn how a multi-CDN infrastructure can, and should be, optimized for performance. Get tips from Fastly on considerations to evaluate against your current content delivery strategy.
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Meet Image Optimizer in Compute: Flexible Image Workflows at the Edge
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.
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Build for Scale: Fastly’s Principles of Distributed Decision Making and Self-healing Systems
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
Discover Fastly's Pillars of Resilience: unwavering availability, minimized latency, and disruption resistance for a robust internet experience with our global network.
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Design for Chaos: Fastly’s Principles of Fault Isolation and Graceful Degradation
Learn how Fastly builds a resilient CDN through fault isolation & graceful degradation. Discover our principles for minimizing disruption & ensuring continuous service.
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The New 2025 OWASP Top 10 List: What Changed, and What You Need to Know
The 2025 OWASP Top 10 list is here! Discover what changed, the two new categories, and how to secure your applications against emerging threats.
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Getting the most out of Vary with Fastly
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.
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Fastly Packages Just Got an Upgrade
Fastly's product packages just got even better. Check out the latest features coming to our Network Services package and more!
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Your most-requested update for Fastly developer accounts
Fastly offers free TLS services so developers can test out Fastly with fewer barriers.
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Best DDoS Mitigation Providers - 2025/2026
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
Learn about Fastly's VCL syntax updates, including return values and parameters for custom subroutines, enabling better code reuse and abstraction.
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From Climate Week NYC to Fastly’s 100% Renewable Commitment
Fastly commits to 100% renewable electricity coverage across its global network and offices, advancing a sustainable internet and supporting customers' climate goals.
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Simpler, Better Pricing with Fastly
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.
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How to Tame Varnish Memory Usage Safely
How Fastly turned a shelved Varnish idea into 25% fewer memory writes and real system-wide gains.
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In AI We Trust? Increasing AI Adoption in AppSec Despite Limited Oversight
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.
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DDoS in September
Fastly's September 2025 DDoS report details modern application attacks. Get insights and guidance to strengthen your security initiatives.
