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  • AppSec in Q1 2025: Trends from Fastly's Latest Report

    David King

    Fastly's Q1 2025 Threat Report: Key insights on web attacks, bot traffic, and how to defend your apps & APIs. Read the full report now.

    Security
    + 2 more
    An illustration of a hand holding a megaphone with shield and lock icons blaring out

  • What is Cache Control?

    Mark Nottingham

    The Cache-Control response header is one of HTTP’s more widely known header fields; it allows a site to control how caches handle their data in CDNs, browsers, and elsewhere

    Engineering
    Industry insights

  • Replacing Client-side JavaScript SDKs with WebAssembly Components at the Edge

    Alex Casalboni, Terri Allegretto

    Edgee and Fastly team up to replace client-side JavaScript SDKs with WebAssembly at the edge, improving performance, security, and data collection.

    Customers
    + 4 more

  • CISO Perspective: Q1 2025 Threat Insights Report

    Marshall Erwin

    Get CISO Marshall Erwin's take on Fastly's Q1 2025 threat report, including shifts in attacks on e-commerce, bot traffic trends, and supply chain risks.

    Security
    Industry insights

  • Write less, do more at the edge: Introducing expressly

    Dora Militaru

    Build faster with Expressly on Fastly’s edge. Simplify routing, cookies, and errors in JavaScript apps with less code.

    Product
    + 3 more

  • How to choose the right WAF

    Ashley Hurwitz

    Not all WAFs are created equal, but how can you navigate the complicated market? Find out how to choose the best WAF for your organization.

    Security

  • Six years in a row: Fastly once again named Customers’ Choice for Cloud WAAP

    Kim Ogletree

    Fastly has been recognized in the 2024 Gartner® Peer Insights™ Voice of the Customer for Cloud Web Application and API Protection.

    Security
    Company news

  • Regex in retrograde

    Kelly Shortridge

    If we want to outmaneuver attackers, then we must progress beyond regex into a more modern era of detection.

    Industry insights
    Security

  • We should still teach coding

    Sue Smith

    We should still teach coding, AI can't replace the critical thinking, creativity, and problem-solving skills that programming instills.

    DevOps
    Engineering
    CODE - Fastly

  • The Internet Is Physical, So Let’s Rethink Its Sustainability

    Eoghan Kelly

    Explore the environmental impact of the internet’s physical infrastructure and new approaches to sustainable digital growth.

    Industry insights
    CDN & Delivery

  • Invisible Intruders – How Bots Sabotage Streaming Services

    Alina Lehtinen-Vela

    Learn how bots disrupt streaming services, causing outages and fraud, and what can be done to protect digital content and improve user experience.

    Security
    Streaming

  • Take Back Control: Make AI Bots Play by Your Rules

    Lorraine Bellon, Tracy Hinds

    Take back control of your content. Fastly AI Bot Management lets you manage AI bots, block unauthorized scraping, & protect your intellectual property.

    Security
    Product

  • Global Streaming Trends: How Bundling Strategies Are Changing

    Tim Logan

    Key insights from Streaming Summit 2025: bundling, discovery, and monetization strategies in the evolving streaming landscape.

    Industry insights
    CDN & Delivery

  • Memory flaw in Cranelift module

    Fastly Security Research Team

    The bug identified in the Cranelift x64 backend performs a sign-extend instead of a zero-extend on a value loaded from the stack, when the register allocator reloads a spilled integer value narrower than 64 bits. This interacts poorly with another optimization: the instruction selector elides a 32-to-64-bit zero-extend operator when we know that an instruction producing a 32-bit value actually zeros the upper 32 bits of its destination register. Hence, the x64 compiler relies on these zeroed bits, but the type of the value is still i32, and the spill/reload reconstitutes those bits as the sign extension of the i32’s MSB.

    Security

  • Tackling Real-Time Ad Personalization for Live Streaming at the Edge

    Alina Lehtinen-Vela

    Discover how Fastly helped a major North American broadcaster overlay customized ads on live streams—without adding latency.

    CDN & Delivery
    + 2 more

  • The Bot Battle: Balancing Security and User Experience

    Ashley Hurwitz

    Fight bots, not customers! Learn to balance security & user experience. Insights from Fastly & industry experts. Watch the webinar now!

    Industry insights
    Security

  • Using cURL to Test Origin Server Responses

    Matt Torrisi

    Curl, or cURL, is a utility that’s shipped by default on operating systems like MacOS and many Linux distributions that allows you to send an HTTP request to a URL and receive the result. In this post, we’ll walk you through how to use the tool to test an origin server’s response.

    Engineering
    Performance

  • Security Without Speed Bumps: Why a WAF Simulator Transforms DevSecOps Workflows

    Daniel Corbett, Liam Mayron, + 1 more

    Learn about Fastly's WAF Simulator and how it transforms DevSecOps workflows by enabling integrated, continuous, and automated security testing.

    DevOps
    + 2 more

  • Modern Web Application Firewalls vs. Legacy: What Today’s Security Teams Need

    David King, The Fastly Collective

    Legacy WAFS can come with a lot of shortcomings, that's why when designing the Fastly Next-Gen WAF, we set out to enable users with these four key benefits.

    Security
    + 2 more

  • Putting an end to CAPTCHA

    David King

    Eliminate frustrating CAPTCHAs and improve user experience with Fastly Bot Management. Learn how Fastly's Dynamic Challenges manage bots without disrupting real users.

    Product
    Security