A bad user experience affects the business. This is why you might want to know how many concurrent users your website can handle properly.
Load tests help you simulate those users to assess your system performance and see if your site or web application is meeting its goals.
Factors Affecting Website Performance
On a website, performance is a crucial part of the user experience. It is often measured by the response time to viewing or interacting with some information. The two main factors that affect the response time of the user experience are:
- Frontend – html etc.
- Backend- sql server (link to https://sqlandme.com/) etc.
Frontend performance focuses on browser metrics such as rendering time, interactive time, loading time, and more.
Backend performance, on the other hand, is primarily focused on server response time and the number of errors returned.
Which is more important? Depends. Generally speaking, the performance rule of thumb states the following:
Between 80 and 90% of the end-user response time is spent on the front end.
But this is not necessarily accurate.
With an increasing number of visits to your website, the response time of the front end remains more or less the same. However, when your system is faced with increased concurrency, backend time can grow exponentially with increasing concurrent users.
When to test the load of a website?
In short, whenever you are concerned about the availability and scalability of your website.
If you have a very low number of users, the performance of the backend will probably not be an issue. You can spend your time optimizing the front end.
But as the number of users grows, you should start spending more time improving and testing the performance of your backend. In the performance rule of thumb, Steve Souders noted that:
If you are concerned about availability and scalability, focus on the backend.
Browser metrics and load tests
When testing how the system behaves with some concurrent users, browser metrics are, in most cases, less useful.
Since each browser runs independently, the number of concurrent users in a load test will not affect browser metrics, such as render time.
Upload test to a website
A load test focuses on checking the performance of requests to your backend. The two fundamental aspects to analyze are the response time of the server and the number of errors.
For example, a load test simulating hundreds of concurrent users could validate that:
The server is not responding with errors.
Response time for 95% of your users should be less than 400ms.
The response time of your images should always be less than 600ms.
Here are some common tips to keep in mind when testing a website for loading:
Decide what to try first
We recommend that you view performance testing as an iterative and continuous process.
You start with the smallest part, testing, evaluating, and iterating frequently.
Start small and simple, make sure you get some test results first, then expand the test suite and add more complexity until you feel like you’ve gotten to the point where more effort invested won’t actually give enough performance to your time invested. Simple tests are better than no tests.
The first thing is to decide which load tests to perform. On the one hand, you could test your critical services, the most valuable to your business, and which have the most significant risks. On the other hand, test the most frequent routes of the users.
With this information, it’s time to analyze the frequency of use, business value, performance risks, and any other critical performance aspects of your organization to help you decide what to try first.
Of course, check your site for viruses – https://webcheck.top/ (link to https://webcheck.top/).
Interesting Related Article: “How to Get Blazing Fast Website & Page Loading Speeds“
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