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Site-Speed Optimisation – Harry Roberts – Web Performance Consultant
Sentinel: Your Web-Performance Watchman

Web Performance Optimisation, Consultancy, and Engineering

  • Audits

    Your website is slow. I know why. Web performance is big business for any industry: from recouping lost sales to increasing conversions; reducing running costs to user retention; better SEO to lowering your environmental impact. Let’s work together to identify and fix your blind-spots.

  • Consultancy

    What is your web performance strategy? How much does a 1s slowdown cost you? How do you measure its impact? Is your monitoring effective or even appropriate? How much is web performance worth to your bottom line? Together, we can work out answers to all of those questions and more.

  • Training

    What’s better than one of me? A team of me. Let me show your engineers how to find and fix all of the things that I can. Get your team self-sufficient, equipped with all of the right tools and knowledge to be your own in-house web performance experts. Never run slowly again.

  • Learn more about my services or Hire me

Trusted by:

  • Harry gave the team a strong footing for identifying performance issues on iPlayer. With his knowledge, we were able to roll out quick fixes to our audiences without the need for big rewrites, all within just two days.

    Matthew Burrows, BBC iPlayer

  • Harry helped our team level up their scalable CSS architecture skills, and to say that he had a large impact on our work is an understatement. We can’t recommend him enough.

    Addy Osmani, Google

  • Harry’s workshop was excellent; we left with tons of new ideas and techniques to improve both the CSS architecture and overall performance of Behance and Adobe Portfolio.

    Jackie Balzer, Adobe

  • There’s a short list of people I whole-heartedly recommend for detailed performance work; Harry is right up there at the top.

    Tim Kadlec

  • The CSS architecture I learned from Harry on the NHS project has changed the way I work. Bravo!

    Josh Nesbitt

Articles

There are 241 articles on this blog. Find them all on the archive page.

  1. Older articles

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!

Projects

  • inuitcss
  • ITCSS – coming soon…
  • CSS Guidelines

Next Appearance

  • Talk & Workshop

    WebExpo: Prague (Czech Republic), May 2024

Learn:

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.

Suffering? Fix It Fast!