A Simple Guide to WordPress Load Testing

Not each internet host offers an equivalent level of performance. several hosting plans come back nice loading times after you have simply one or two holidaymakers. However, those self-same hosts will succumb to pressure once your website starts obtaining additional traffic. fortuitously, WordPress load testing helps you exactly confirm what quantity of traffic your hosting supplier will handle.

In this article, we’ll mention load testing and the way it works. Then, we’ll discuss what you would like to run your WordPress load tests and the way to interpret the results.

Let’s get to work!

What Is Load Testing and What will It Measure?

There area unit many ways in which to check your WordPress website’s performance. the foremost in style testing methodology involves employing a service like GTMetrix or PageSpeed Insights. These platforms modify you to enter a URL and see however long it takes to load on the platform’s finish.

Depending on that tool you utilize, you may get access to totally different sets of metrics:

Speed testing services will provide you with an honest plan of your website’s performance. However, these tools don’t paint a full image. Let’s break down why that is:

  • You’re solely testing page speeds at one purpose in time. Page loading times will vary drastically from one check to a different one. which means running one check won’t yield extremely correct results.
  • The tests solely use one user agent. Page speed testing services emulate a user agent to envision your website’s performance. However, there’s an enormous distinction between what happens once one person tries to access your website and once their area unit multiple folks at the same time.

Every server contains a finite variety of resources. The system can use a number of them to satisfy requests once somebody visits your website. the fewer resources your server has, the quicker they’ll run out if you begin obtaining loads of traffic in a very tiny window of your time.

Simply put, WordPress load testing permits you to ascertain however your server reacts after you place it struggling. A load or “stress” check can simulate multiple user agents navigating your website. Then, whichever tool you utilize can live however your server responds throughout that method.

Ideally, your server ought to stand firm and maintain similar page loading times whilst the number of users will increase. If loading and response times vary dramatically, this information will purpose toward a poorly optimized website or server.

What you would like for WordPress Load Testing

You only would like an operating website and a stress testing tool for WordPress load testing. There {are|ar|area unit|square live} lots of online services that may emulate multiple users visiting your website and measure results for you. However, several of these tools area unit either paywalled or too difficult for beginners to use.

Besides finding an associate degree adequate service, the important challenge with WordPress load testing is crucial what number shoppers you must use. victimization of too few agents for your check suggests that you’re not stressing the server enough. However, if you utilize too several, even a frenzied server can struggle to stay up:

For a brand new website, it’s not rare to urge solely a couple of visits on a daily basis. in this situation, you’re in all probability victimization shared hosting, which can delay simply fine.

However, suppose you’re running a massively in-style website. in this case, those traveler numbers are going to be loads higher, and budget internet hosting plans can struggle to stay up.

To put significant website traffic into perspective, here area unit a few of figures:

  • Wikipedia may handle about fifty,000 requests per second, with three hundred servers at its peak.
  • The often-mentioned Reddit “hug of death” will translate to around 10 users per second or 600 visits in a very minute.

Six hundred visits per minute over a complete day would equal 864,000 users per day. That traffic would place your website squarely amongst the foremost in style sites within the world. In different words, that’s not the sort of stress that a daily server will handle.

If you’re running a check for a daily website or online store, your server ought to be ready to handle a moderate variety of users in a very tiny window of your time. In our expertise, testing for fifteen users in a very one-minute window can reveal loads regarding your server’s performance.

That might appear to be an occasional variety. However, fifteen users per minute equate to twenty-one,600 visits per day and quite 600,000 per month. If you consider a managed WordPress internet host like Kinsta, an inspiration that might handle that quantity of traffic would value you around $400 per month:

If you’re obtaining fifteen users per minute, that traffic can place your website squarely within the territory of a powerful success. That variety additionally happens to be the minimum metrics that Loader.io can settle for a check.

How to Interpret the Results of Your Load check

You’ll wish to review 2 key metrics with WordPress load testing. the primary is however long it takes on the average for users to load the testing page. For the second benchmark, you’ll wish to verify if any of the connections regular out:

The average response ought to be as low as doable. On average, an internet site ought to ne’er take quite 2 seconds to load. once you cross that line, your bounce rate can begin to travel up dramatically. Therefore, something but one second could be a stellar loading time for any website.

You’ll additionally wish to appear at the reaction time graph once considering the common. Ideally, the load times ought to hold comparatively steady across the complete check. If there area unit too several spikes, it implies that your server has issues with process requests. notwithstanding some loading times area unit quick, these peaks translate to poor improvement.

Timeouts sometimes begin to occur once your server is below too significant a load. in this situation, the server can begin to drop user requests as they timeout.

If you are feeling up to that, you’ll be able to still run stress tests with increasing users over an extended amount. This methodology can come back with additional correct results. However, if your WordPress internet host is holding sturdy with one-minute stress tests, which means that it offers fantastic performance.

In our case, we tend to use a managed WordPress internet host for testing. we tend to didn’t begin to ascertain spikes in our results till we tend to run a 100-user one-minute check, which is way additional traffic than most websites get:

The big individual with a good internet host is that the server shouldn’t drop any connections even once response times vary considerably. Likewise, the common reaction time can stay comparatively low.

If your WordPress website is troubled below a moderate check, we tend to advocate taking steps to optimize it. you’ll be able to attempt a number of these methods:

  • Use a caching plugin
  • Optimize your WordPress info
  • Utilize a Content Delivery Network (CDN)
  • Remove unused plugins and themes
  • Use WordPress minification
  • Enable GZIP compression
  • Optimize your pictures and video files

If you’re still obtaining poor results once improvement, it points to drag along with your hosting setup. At that time, you’ll be able to {choose to|prefer to|like better to|value additional highly to|favor to|opt to} upgrade your subscription to handle more traffic or migrate to an improved internet host.


There area unit some ways to check your WordPress website’s performance. By combining regular page speed loading time and stress tests, you’ll get the entire image of however your website responds to traffic. Frequent speed tests show however your website performs below optimum circumstances. In distinction, load tests reveal what happens after you begin spile on users.

WordPress load testing is comparatively simple to hold out if you have got access to the proper tools. Loader.io permits you to run free tests with up to ten,000 users per minute, which could be a ton quite what most websites receive.

Do you have any questions about WordPress load testing? Let’s mention them within the comments section below!

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