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How To Improve Your Website's Performace

Matthew Spence
MAY 10

Have you ever browsed the internet and become stuck on a sluggish and slow website? This happens all too often: a good website should leave the user hate-free with good performance.

  1. A scaling website is all about user experience to encourage sales or engagement

  2. If a website takes longer than 3 seconds to load, a whopping 53% of users will ditch trying and find a faster alternative website!

  3. As mobile users continue to own the largest share of internet web visitors you want to provide a website smaller than an Instagram photo that takes under 1s to load.

What can I do to speed up my website?

Speeding up your website includes both options that are technical and non-technical. Below are some noteworthy factors we'd recommend.

Are you a technophobe? We'll add easy notes as you go - we've got your back! 

Use the best web compression available in 2020

Google released a new compression algorithm called Brotli that powers even better dense compression than Gzip or Zip. Since 2015 they have perfected it and yet many, many, many websites haven't yet begun using this offering.

You probably don't want to click this monstrosity but we were impressed with the huge Broti specification they went to making this a reality. Compression algorithms aren't a small thing.

Brotli in the wild
Brotli in the wild

What makes Brotli different?

  1. Web pages, images, and styling can all be reduced by a further 20% than Gzip
  2. Supported by modern browsers, nicely falls back to older compression methods
  3. Can be faster than Gzip in some cases but otherwise worth the few milliseconds payoff
  4. only has to compress once and then serve the same output to every web visitor

Want to test yours? There are a few useful Brotli tools online like this one or get in touch and we'll let you know!

Testing your website has brotli
Testing your website has brotli

Images and lazy-loading

Your images are a very powerful element of the website. Without them, your ~79% users who typically scan a web page instead of reading the copy word-for-word will find easier content to read elsewhere.

That said, imagery is also the biggest cause for a slow website! Typically we recommend that a page should take no more than 3 seconds to load which can be improved by scaling your images down to below 1 MB.

Quite often your website platform won't re-size or compress your images effectively. We suggest you resize the dimensions of your images to a max of 1800px by 1800px and then drop then into a lossless compressing tool.

One easy solution is called TinyPNG - they let you drag up to 20 images at once and then shrink the images without losing quality (smart lossy!). Despite the name, you can also drop in JPGs. 

TinyPNG - a useful resource
TinyPNG - a useful resource

Lazy Loading

Even with nicely reduced images you still may have a lot of imagery on your pages. This is a good thing! We highly recommend a nice technology called 'lazy loading' that only downloads images when it's about to become visible on the device. Anything out of view of a user won't be downloaded until it's needed.


Running a performance audit

There are many other opportunities that can improve your website's performance.

  1. Serve next-gen images in WebP format
  2. Use correct caching technology
  3. Reduce blocking resources on load
  4. 'Minify' styling and scripts
  5. Use SSL and HTTP/2
  6. Minimise what scripts load at runtime
  7. And honestly many other factors that we can identify every month based on Google and social media signals

We can run an audit for you that directly identifies problems on your website as we did for ThreadEx who saw a 60% improvement with Google's recommended scoring toolkit. 

Matthew Spence
MAY 10