WordPress Performance Tips
Since the loading performance of a website has become a Google ranking factor, you should give the performance optimization top priority. Not only Google will rejoice at a fast WordPress website, it will be your readers, above all, who will appreciate your efforts and, in the end, it all comes down to them. Studies show that 25% of the users leave a website with a loading performance of 4 seconds. But there are different opinions on how to speed up a website. So, we thought it’s time to tell you the truth about WordPress performance.
An Introduction – What This Article Covers
In this article, we’ll talk about on-page optimization that includes everything but the web server. Setting up a web server is a completely different story and would go beyond the constraints of this article. I assume a WordPress website with a common web hosting package. Properly configured, a website based on a hosting package shows excellent results.
Note: This article only covers the optimization of a website’s desktop version as optimizing the mobile view is considerably more difficult.
Infographic: How Loading Time Affects Your Bottom Line
Two Examples for Superbly Optimized and Fast Websites
1. The Highflier: Smashingmagazine.com
The Smashing Magazine has a team that takes care of the website’s performance, and this team has made every possible adjustment as they have 100 mobile and desktop points. 100 points – that’s the absolute perfection. Congrats guys, you did a great job! The source code is a fantastic medium to learn how to do it right.
Link to the website: SmashingMagazine.com
2. A “Normal” Website – TechBrain
My website TechBrain is so far only optimized for the desktop version. 93 of 100 possible points are, however, terrific. Of course, there’s still room for improvement. I haven’t bothered about the mobile version yet, so you can ignore the mobile points.
High Loading Performance – Google Page Speed Optimization
Google Page Speed is the benchmark, and most recommended optimizations – however, not all – are easy to understand. We’ll go through them point by point and apply them in the next article of this mini-series to make your website a real racer and your visitors and Google likewise happy.
By the way, the Google Page Speed Score ranges from 1 (abysmal and slow) to 100 (jackpot) points.
1. Reduce or Shorten HTTP Requests
3. Optimize Your Images and Graphics
If your theme uses a lot of graphics, summarize them in CSS Sprites to call only one graphic file. Images should always be web-optimized which means to cut them to needed resolutions and reduce the file size. There are some good plugins for that. But you can also use Photoshop or Gimp.
It would be ideal if the images and all other static resources would be delivered by a Content Delivery Network (CDN). There are some good providers like MAXCDN or KeyCDN. A free plugin is the Jetpack plugin where the setting is called “Proton”. If you activate this setting, all article images will be delivered by the pretty fast WordPress servers. This brings a notable performance improvement.
But just like real life, dealing with images on a website means: Less is more. Less images mean better loading speed.
4. .htaccess Settings: Use Compression (Gzip or Deflate)
Compression can extremely reduce the file size of your pages. It can save you up to 70% of the original file size and boost your website’s delivery speed. It’s, however, only worth the effort if your website has a certain amount of content, since the browser has to uncompress the compressed website first before delivering it, which also takes some time.
You’ll notice the compression on blogs or websites with more than one paragraph of content.
5. .htaccess Settings: Activate Browser Caching
6. Optimize CSS Delivery – above the Fold
You’ll get an above-the-fold (see without scrolling) message when Google Page Speed Online detects that one or more files block the website rendering and, as a result, delay the display of content. Browsers are blocked by CSS files before the content can be displayed.
You’ll get such messages if your theme’s header has CSS files as the browser first has to stop the display of the website in order to load the stylesheet.
7. Reduce the Size of the Above-the-Fold Content – CSS Delivery Part 2
Now, we will talk about optimizing the above-the-fold content of your website. This can be achieved by pasting the CSS necessary for rendering the above-the-fold content inline, instead of using an external linked file. In other words: Paste the fragment of the CSS responsible for the rendering of the above-the-fold content inline into the website’s header.
Put the rest of the CSS file into the footer rather than the header as you would normally do.
Keep in mind: Don’t put too much CSS inline into the HTML document as this again can slow down your website. You should only use the CSS essential for rendering above-the-fold content.
Then, check the loading speed of both methods (CSS linked and inline). It doesn’t make sense if Google Page Speed stopped nagging at the cost of your website performance.
8. Use a Caching plugin
A good caching plugin generates static HTML pages from dynamic (PHP) pages of your website. These can be loaded faster because the PHP interpreter doesn’t have to generate the relevant page with every call. There are a lot of plugins for this job. Some of them being good, some very good and at least one outstanding – with some tricks.
Recommended Caching Plugins:
9. Don’t Use 301 Redirects
301 redirects slow down the browser as it has to use a new URL. So, you’d be better off avoiding such redirects.
10. Choose a Good Web Hosting Provider
Web hosting provider are a dime a dozen with some of them having optimized their web hosting packages for a lickety-split website delivery. Important to know: A web hosting package is shared hosting which means that you have to share the server with dozens – if not hundreds – of other websites.
This usually results in slower loading performance.
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More Reasons for a Good Website Performance
Big websites like Google, Amazon, and Yahoo have examined the influence of the loading performance on user behavior. Here’s the result:
If you want to improve the website performance, you’ll have to go through some important points. It’s, however, worth it to invest one day in your website and make not only your visitors but also Google rejoice. You’ll be rewarded for all the hard work – if done right – with loyal readers and a better Google ranking.
article originally posted at: Noupe