Sentinel: Your Web-Performance Watchman

Written by on CSS Wizardry.

Table of Contents

Anyone who follows me on Dribbble and Forrst might have seen shots and posts about is a simple hub site that is intended to bring all my online stuff under one central location… I was inspired after seeing Antonio Carusone’s own little hub site and made my own.

I’d love any feedback regarding design and content, and special thanks goes to Bryan, Dan and Suze. You can poke through the source on GitHub.

Did this help? We can do way more!

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.

You can now find me on Mastodon.

Suffering? Fix It Fast!


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    WebExpo: Prague (Czech Republic), May 2024


I am available for hire to consult, advise, and develop with passionate product teams across the globe.

I specialise in large, product-based projects where performance, scalability, and maintainability are paramount.