Using Page Speed Insights with your new web design

July 2, 2019

As a business owner, marketer or the resident online SEO person in your office, you’ve likely used Google’s Page Speed Insights at one point or another. You may also have wondered “Hey, my mobile score is really low, is my site not optimized?”. With a low score in mobile, you’re not the only one.

Let’s look at how other sites perform on Page Speed Insights for Mobile:

Name of Site URL Mobile Score
(out of 100)
Screenshot from Page Speed
Amazon 36 Screen Shot of mobile site
Ebay 37 mobile site screenshot
QQ 44 Screen Shot of mobile site
YouTube 48 mobile site screenshot
Baidu 50 mobile site screenshot
Gmail 55 login page screenshot
Taobao 59 Taobao mobile site screenshot
BBC News 63 Screen Shot of BBC news mobile site
Yahoo 65 Screen Shot of yahoo mobile site
Facebook 79 mobile site screenshot
Wikipedia 98 Screen Shot of wikipedia mobile site
Some of the sites above are from this list of the most popular sites and then tested a few others

Many of these sites are the most visited in the world, and they have really low PSI scores even though they load fairly quickly on mobile devices. A few other sites, like Wikipedia have an almost perfect PSI score for mobile.  The visual appearance of a site can contribute to the PSI score but usability and security features that may not show visually can greatly affect the results, as we’ll explain in this post.

So how does Wikipedia get their perfect 100 mobile score and why are almost all other website’s PSI so low?

Page Speed Insights (PSI) tool is actually comparing your website speed to browser data collected by Google. This data can be skewed depending on where in the world the data is collected from and what mobile device was used. If it’s someone in an area of the world that doesn’t have high speed mobile data, or is using a very old device, their data can skew your score (the data collected is only from Chrome users that opt-in to share their data). This is all towards Google’s goal to foster a better world web. The score you get from this tool also does not directly affect your ranking on a SERP (Search Engine Results Page).

Okay, so how can my site score a perfect 100 on every page?

Most websites contain pages full of images, animations, text and interactions. One website that doesn’t is Wikipedia (one of the few sites with an almost perfect PSI score!). Wikipedia’s homepage is really empty – it has just plain text and a small simple logo. There are no login or contact forms or fancy animations. If you want to have a high score for mobile devices, less is definitely more. This style of page would be the format to aim for (which is basically no style).

By including logos, icons, images (even small ones), login, contact forms or animations that give your site it’s character and unique feel, you’re adding more for the browser to prepare your webpage to be served to your visitor. 

You may now be wondering why Gmail’s PSI score is a 55 for mobile, especially when PSI and Gmail are run by the same company? After-all, Gmail loads fast, in just under 2 seconds. There is also less text on their login page than Wikipedia’s homepage. But what you don’t see is the mass amounts of code that Gmail puts in the layers of the page to provide tight security features for the authenticity of the page as well as quality checks on your username and password.

Although Wikipedia’s homepage scores high, once you hit a page with banners, forms, and small images, the score changes. For example, Wikipedia’s biographies page still loads under 2 seconds but doesn’t score as high (with a 44 out of 100). See the screenshot below:

Page Speed Test score for Wikimedia Commons 44 out of 100


Just because you have a low score doesn’t mean your webpage is slow or isn’t well optimized. It just means your page has content that requires the browser to serve more than just plain text.