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Tag: Networking

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HTTP/2, latency, and connection setup. How bytes really reach the browser, and what that should change about the way you load a site.


2024


  1. Optimising for High Latency Environments

2023


  1. Correctly Configure (Pre) Connections

  2. The Three Cs: 🤝 Concatenate, 🗜️ Compress, 🗳️ Cache

  3. The HTTP/1-liness of HTTP/2

2020


  1. Real-World Effectiveness of Brotli

2019


  1. Time to First Byte: What It Is and How to Improve It

  2. Self-Host Your Static Assets

2018


  1. CSS and Network Performance

2017


  1. The Fallacies of Distributed Computing (Applied to Front-End Performance)

  2. Performance and Resilience: Stress-Testing Third Parties

  3. Moving CSS Wizardry onto HTTPS and HTTP/2

2013


  1. Front-end performance for web designers and front-end developers

2010


  1. Upside down domains — registering an international domain name

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Hi there, I’m Harry Roberts. I am an award-winning Consultant Web Performance Engineer, designer, developer, writer, and speaker from the UK. I write, Tweet, speak, and share code about measuring and improving site-speed. You should hire me.


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I help teams achieve class-leading web performance, providing consultancy, guidance, and hands-on expertise.

I specialise in tackling complex, large-scale projects where speed, scalability, and reliability are critical to success.