React2Shell Continued: What to know and do about the 2 latest CVEs
Fastly Security Research Team, Fastly
In the wake of the critical severity React2Shell CVEs, two new CVEs exploiting similar Next.js and React components were announced on December 11. Learn more about these new CVEs.
Staying Secure in 2025
All blog posts
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React2Shell Continued: What to know and do about the 2 latest CVEs
Fastly Security Research Team
In the wake of the critical severity React2Shell CVEs, two new CVEs exploiting similar Next.js and React components were announced on December 11. Learn more about these new CVEs.
SecurityIndustry insights
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The Sleep Test: How Embracing Chaos Unlocks API Resilience
Lorraine Bellon, Anna Jensen
Learn how Fastly's API Discovery and new Inventory feature unlock API resilience for platform engineers by embracing chaos and strategic, thoughtful planning.
SecurityProduct
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DDoS in November
David King, Liam Mayron
DDoS attackers were largely absent on Black Friday 2025. Fastly’s latest report reveals why, and what the shifting attack patterns mean for your apps and APIs.
SecurityIndustry insights
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Upgrading Visibility for Compute with Domain Inspector
Namit Shivaram, Delen Trance
Fastly's Domain Inspector now supports Compute. Get robust domain-level observability, real-time traffic visibility, and faster troubleshooting at the edge.
Compute+ 3 more
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Black Friday is Dead, Long Live Black Friday: Cyber 5 Traffic Insights
Robyn Bean, Alec Olslund
Black Friday isn’t the traffic spike it used to be. Fastly’s data shows holiday demand now stretches across all of November. Here’s what Cyber 5 2025 really looked like.
Security+ 3 more
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How React2Shell is evolving: Industries and regions targeted
Kelly Shortridge
Fastly is seeing sustained React2Shell attacks across all industries and regions. Learn what’s happening and the critical steps enterprises should take to patch vulnerable apps.
SecurityIndustry insights
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Unparalleled Performance: Bring Your C++ Logic to the Edge
Kat Marchán, Sy Brand
Bring your C++ logic to the edge with the Beta Fastly Compute SDK. Achieve unparalleled, near-native performance, low-latency, and enhanced security via WebAssembly (Wasm).
Engineering+ 4 more
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Fastly’s Proactive Protection for React2Shell, Critical React RCE CVE-2025-55182 and CVE-2025-66478
Kelly Shortridge
Protect your apps from the critical React RCE bugs (CVE-2025-55182/66478). Fastly's NGWAF Virtual Patch provides proactive defense.
Security
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Deploy for Performance: Fastly’s Principles of Infrastructure Diversity and Soft Control
Brian Haberman
Discover Fastly's core resilience principles: Infrastructure Diversity prevents outages, and Soft Influence optimizes traffic for peak performance.
Performance+ 2 more
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CAPTCHAs Are Costing Retailers Customers — Heavy AI Users Are the First to Walk Away
Alina Lehtinen-Vela
Our original survey of 881 online shoppers shows CAPTCHAs are quietly killing conversions — especially among heavy AI users, who are the quickest to walk away.
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How Fastly and Yottaa Transform Site Performance with Early Hints
Ajay Bharadwaj, Terri Allegretto
Early Hints for Compute is now generally available, dramatically improving website performance and user experience by preloading essential resources.
Compute+ 4 more
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Why the Future of Streaming Lives at the Edge
John Agger, Ashley Hurwitz
The future of streaming lives at the edge. Explore how Fastly reduces latency, boosts performance, and unlocks sustainable content delivery for media companies.
Edge network+ 3 more
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Mitigating DDoS attacks faster and with even more accuracy
Liam Mayron, David King
Learn how Fastly's Adaptive Threat Engine update for DDoS Protection boosts mitigation accuracy and reduces Mean Time to Mitigation by 72% for the holidays.
SecurityProduct -
Outages, Attacks, and a Need for Resilience
Austin Spires
Cloud outages are a stark reminder of our digital economy's fragility. Learn how Fastly mitigated a major traffic failover and concurrent DDoS attacks with zero disruption.
CDN & Delivery+ 4 more
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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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Optimizing your multi-CDN infrastructure to improve performance
Natalie Griffeth
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.
CDN & DeliveryPerformance
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Wikipedia Tells AI Companies to "Stop Scraping"
Natalie Griffeth
Wikipedia cracks down on AI scraping, citing server strain and lost traffic. See why publishers are fighting back and turning to bot management.
SecurityIndustry insights
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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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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 -
Building Scalable Waiting Rooms with Fastly Compute
Brock Norvell, Terri Allegretto, + 1 more
Control website traffic and prevent server overload with Fastly Compute waiting rooms. Learn how to build scalable, customizable queues for high-demand events.
Compute+ 4 more
