Andrew betts headers for hackers performance now 2018

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andrew betts' "headers for hackers" performance presentation (2018) - a deep dive

andrew betts' "headers for hackers" presentation at performance now 2018 (available on youtube, for example: [https://www.youtube.com/watch?v=qh3m0_z9t0w](https://www.youtube.com/watch?v=qh3m0_z9t0w)) is a treasure trove of knowledge about leveraging http headers to significantly improve website performance. it focuses on practical and actionable techniques that go beyond the basic understanding of caching. this tutorial will dissect the key concepts he covers, providing explanations, code examples, and best practices.

**core themes:**

* **beyond caching:** while caching is a central component, the presentation emphasizes using headers for more than just traditional browser and cdn caching. it explores areas like resource hints, compression, http/2 optimizations, and security considerations that directly impact performance.
* **client vs. server perspective:** the presentation bridges the gap between server-side configuration (how you set the headers) and client-side behavior (how the browser interprets and reacts to them). understanding both sides is crucial for effective optimization.
* **practical application:** the focus is on real-world scenarios and how to apply these header techniques to improve real user experience (rum) metrics like first contentful paint (fcp), largest contentful paint (lcp), and time to interactive (tti).
* **http/2 considerations:** many of the optimizations are particularly relevant and beneficial when using http/2, as it enables features like header compression and multiplexing.

**tutorial outline:**

1. **setting the stage: understanding the critical path**
2. **caching headers: fundamentals and advanced techniques**
3. **resource hints: preconnecting, preloading, and prefetching**
4. **content negotiation and compression: efficient resource delivery**
5. **http/2 optimizations: leveraging multiplexing and header compression**
6. **security header ...

#AndrewBetts #HeadersForHackers #comptia_security
Andrew Betts
hackers
performance
2018
cybersecurity
data breaches
threat detection
vulnerability assessment
security protocols
ethical hacking
penetration testing
malware analysis
digital forensics
risk management
information security

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