Rewriting HTML with the Fastly JavaScript SDK
Staff Software Engineer, WebAssembly
Boost web performance with Fastly’s JS SDK v3.35.0. Use the new streaming HTML rewriter to customize, cache, and transform pages faster and more efficiently.
Staying Secure in 2025
All blog posts
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Rewriting HTML with the Fastly JavaScript SDK
Sy Brand
Boost web performance with Fastly’s JS SDK v3.35.0. Use the new streaming HTML rewriter to customize, cache, and transform pages faster and more efficiently.
Compute+ 4 more
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Resilience by Design: Lessons in Multi-Cloud Readiness
Austin Spires
Stay online when it matters most. Learn how Fastly's multi-cloud and edge strategies protect against outages, keeping your systems fast and reliable.
CDN & Delivery+ 2 more
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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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Increasing the accessibility of managed security services
Cody Arnold
Make world-class protection accessible. Fastly’s new Managed Security Professional delivers 24/7 expert defense for your most critical apps and APIs.
ProductSecurity
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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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Your API Catalog Just Got an Upgrade
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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3 Costly Mistakes in App and API Security and How to Avoid Them
David King, Ashley Hurwitz
Avoid costly app and API security mistakes. Learn how to streamline WAF evaluation, estimate TCO, and embrace agile development for optimal security.
SecurityDevOps
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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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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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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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In AI We Trust? Increasing AI Adoption in AppSec Despite Limited Oversight
Natalie Lightner
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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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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Fastly's Seven Years of Recognition as a Gartner® Peer Insights™ Customers’ Choice
Kim Ogletree
Fastly was named a 2025 Gartner® Peer Insights™ Customers’ Choice for Cloud WAAP, marking seven consecutive years of recognition driven by customer trust and reviews.
Company news+ 2 more
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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 -
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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4 Tips for Developers for Using Fastly’s Sustainability Dashboard
Leon Brocard
Track the real-world emissions of your Fastly workloads. This blog shares practical tips on using the Sustainability dashboard for greener, faster code.
Performance+ 3 more
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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 -
The Tools Gap: Why Developers Struggle to Code Green
Alina Lehtinen-Vela
77% of developers want to code sustainably, but most lack the tools to measure impact. Fastly’s survey reveals the barriers and opportunities in green coding.
Industry insightsEngineering
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Publish your website without a host
Sue Smith
Deploy static sites to Fastly Compute directly from your browser or IDE. Publish blogs, apps, and websites at the edge without hosting.
CDN & Delivery+ 3 more
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Teach Your robots.txt a New Trick (for AI)
Brooks Cunningham
Control how AI bots like Google-Extended and Applebot-Extended use your website content for training. Update your robots.txt file with simple Disallow rules.
CDN & Delivery+ 3 more
