Page Speed

Page load time has implications both in terms of SEO and in terms of user experience.

This is nothing new, Google told us almost a decade ago that they use site speed in their search rankings:

"Speeding up websites is important — not just to site owners, but to all Internet users. Faster sites create happy users and we've seen in our internal studies that when a site responds slowly, visitors spend less time there."

And there's about a million studies online about improving engagement/conversion with improved page speed:

Web performance impacts business results

As development techniques have advanced, and website owners are trying to do more with their websites, page speed has become an ever more important factor.

There are lots of different ways to optimize the delivery of content from a performance perspective, but they can roughly be split into these broad techniques:

  • Optimizing the cricital path
  • Minifying and optimizing HTML/CSS/JavaScript code
  • Optimizing images and image delivery
  • Removing duplicate page resources
  • Setting suitable cache headers on page resources
  • Optimizing webfonts

Page Speed Issues

Most of the Page Speed Hints are Issues, which means they represent errors or problems that need to be fixed. When dealing with Page Speed 'issues', they typically relate to speed gains which can result from fixing the issue in question. They are additionally classified in terms of their importance - this should be taken into account when prioritizing implementation work, along with the number and type of URLs affected.

Importance: High

These Hints are very important, and definitely warrant attention.

Importance: Medium

These Hints are worth investigating further, and may warrant further attention depending on the type and quantity of URLs affected.

Importance: Low

These Hints are of the lowest significance, and should only be addressed if there aren't more serious issues which have not been handled.

Page Speed Potential Issues

Hints marked 'Potential Issue' describe a situation that might be an issue, or might cause an issue. In the case of Page Speed Hints, they typically highlight patterns which are worth investigating, as there may be an underlying issue there which needs exploring further.

Page Speed Opportunities

Hints marked 'Opportunity' describe where you could optimize the site to potentially improve performance further.

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