All About Website Page Speed: Issues, Resources, Metrics, and How to Improve

All About Website Page Speed: Issues, Resources, Metrics, and How to Improve

Today we're going over all things page speed and really getting to the bottom of why it's so important for you to be thinking about and working on as you do your work. Typically the DOM will need to request additional resources from your server to make everything happen, and this is where things start to really slow down your site. Large images are the biggest culprit of slow loading web pages. So we're going to go over some resources, some of the metrics and what they mean, and then what are some of the ways that you can improve your page speed today. Page speed tools and resources The primary resources I have listed here are Google tools and Google suggested insights. This one is really cool because it tests the mobile speed of your site. DOM content loaded The DOM content loaded, this is when the HTML is completely loaded and parsed. HTTP/2 can definitely speed things up. There are all sorts of free tools available for you to compress them. So this is sort of a high-level overview of page speed.

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Page speed is an important consideration for your SEO work, but it’s a complex subject that tends to be very technical. What are the most crucial things to understand about your site’s page speed, and how can you begin to improve? In this week’s edition of Whiteboard Friday, Britney Muller goes over what you need to know to get started.

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Video Transcription

Hey, Moz fans. Welcome to another edition of Whiteboard Friday. Today we’re going over all things page speed and really getting to the bottom of why it’s so important for you to be thinking about and working on as you do your work.

At the very fundamental level I’m going to briefly explain just how a web page is loaded. That way we can sort of wrap our heads around why all this matters.

How a webpage is loaded

A user goes to a browser, puts in your website, and there is a DNS request. This points at your domain name provider, so maybe GoDaddy, and this points to your server where your files are located, and this is where it gets interesting. So the DOM starts to load all of your HTML, your CSS, and your JavaScript. But very rarely does this one pull all of the needed scripts or needed code to render or load a web page.

Typically the DOM will need to request additional resources from your server to make everything happen, and this is where things start to really slow down your site. Having that sort of background knowledge I hope will help in us being able to triage some of these issues.

Issues that could be slowing down your site

What are some of the most common culprits?

  1. First and foremost is images. Large images are the biggest culprit of slow loading web pages.
  2. Hosting can cause issues.
  3. Plugins, apps, and widgets, basically any third-party script as well can slow down load time.
  4. Your theme and any large files beyond that can really slow things down as well.
  5. Redirects, the number of hops needed to get to a web page will slow things down.
  6. Then JavaScript, which we’ll get into in a second.

But all of these things can be a culprit. So we’re going to go over some resources, some of the metrics and what they mean, and then what are some of the ways that you can improve your page speed today.

Page speed tools and resources

The primary resources I have listed here are Google tools and Google suggested insights. I think what’s really interesting about these is we get to see what their concerns are as far as page speed goes and really start to see the shift towards the user. We should be thinking about that anyway. But first and foremost, how is this affecting people that come to your site, and then secondly, how can we also get the dual benefit of Google perceiving it as higher quality?

We know that Google suggests a website to load anywhere between two to three seconds. The faster the better, obviously. But that’s sort of where the range is. I also highly suggest you take a competitive view of that. Put your competitors into some of these tools and benchmark your speed goals against what’s competitive in your industry. I think that’s a cool…

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