8 Reasons Why Load Testing is Important?

importance of load testing

In simple terms, Load Testing means checking the performance of your app/site under severe load. 

Severe Load means lots of traffic at the same time. A high number of requests to web servers, dynamic activities and fetching of content in a short duration of time.

Learn more about load testing.

As the percentage of online shopping is increasing, load testing is getting important. 

In this post, I will tell you why Load testing is important, and you should do it regularly.

8 Reasons why Load Testing is Important

Here are eight reasons why Load Testing is essential for your site:

  1. Real Users Simulations
  2. Performance Under Load
  3. Estimating Scalability of Application
  4. Low Downtime
  5. Code change affect product
  6. Don’t Annoy Users
  7. Saves Money
  8. Irregular Holiday Traffic

#1 Real Users Simulations

First of all, you have to look at how your site will look in the real user environment.

To use the site yourself, and to use the site from the perspective of the 1000 users are entirely different things.

A load testing will take the test of API endpoints, your hosting resources, bandwidth, the loading speed of the page, third-party apps, and functionality under load. 

Maybe your app is working fine and excellent for 100 users, or 200 users, but you need to know how it will perform for 1000s of users. The test will tell you the errors, bugs, bottlenecks, and difficulties that could arise for the real users.

Moreover, the good load test scripts mimic the real user behaviours and use patterns to provide quality insight into the site performance.

Overall, it tells you what will happen to your site if the specific number of users open it at the same time.

#2 Performance Under Load

Performance indicators such as response time, memory leakage, CPU, TTFB, etc. might be ideal for the single user. 

Though when under a load of 1000s of users across the globe, many of these indicators start throwing error signals. Website speed that is also critical for search engine optimization also reduces if there are lots of hits on the webserver

performance under laod

There is various type of load testing:

  • Sudden traffic spike
  • Massive load for an extended period
  • Randomly increasing and decreasing the load

By running a Load test for your site, you can find when your system breaks, and fix the problem to avoid unexpected errors. This way, the real visitor and customers will not encounter the errors, and there will be no revenue loss.

#3 Estimating scalability of Application

Load Testing helps in determining the highest possible concurrent user numbers that the website can support. 

After learning this, testers can keep the additional resources in backup to meet the potential demands in case of huge traffic.

ServerGuy provides scalable web hosting, and we will increase the resources quickly. But there are elements on the site that are independent of hosting, and webmaster needs to know at what traffic they will break.

#4 Low Downtime

reasons why load test is important - low downtime

Once you know how many users the site can handle without crashing, you can prevent Downtime.

When a website is not available online or can’t function for the users, it is called downtime. It mostly happens when the backend resources are not enough. 

To prevent it, you have to set the resources according to the site requirements. However, sometimes, when the traffic comes suddenly, and your site is not prepared, Downtime happens.

By load testing, you will know at what point your site will go down, and you can use additional resources to prevent it.

#5 Code Change Affect Product

A responsible developer load tests every time they commit. 

Developing a site or app is not a one time task. You have to make changes in codes repeatedly to make it better and fast. Like designing the site, coding is also an ongoing process. 

Maybe the site loads correctly for the first load test, but then you did some modification. Those modifications will affect the system, possibly due to some dependencies, or an updated frame. But whatever the reason, you can’t risk releasing the changes without testing them.

All the change in coding can also affect the behaviour of the site under pressure. That’s why developers choose to automate load tests with the help of open-source load test tools.

#6 Don’t Annoy Users

Users are less forgiving of slow sites and crashes. If there is any downtime, they will even post on social media about it.

Nearly 40% of users leave the site if it takes more than 3 seconds in load. And users do not trust the sites that do not function properly.

Unsatisfied customers remember the terrible experience and often ignore the site in future. It is awful for the online business to let the customers go away angry. As they will spread the words, and negative marketing is not good.

Do you want your potential customer looking like this:

Angry Customer

Moreover, many users do not understand the reason behind the down site. They assume it is hacked, and stop visiting the site.

Overall, users and visitors are ruthless and dislike slow/crashed websites.

#7 Saves Money

In starting, setting automated load tests would look like an investment, but it will give you a good return in a long turn. 

Fixing a crashed website is more expensive than preventing the crash beforehand. Also, website crashes affect the reputation of the business and customer dissatisfaction.

Downtime costs you money. A few minutes downtime during the festival season can cost you thousands of dollars. Or worse, a slow site can make your customer go to your competitor.

All of this because your site was not prepared for the large traffic. And now in the middle of the surge, you are struggling to scale it. So you increase the server resources, without actually knowing the bottlenecks. 

That’s how you save money with load testing.

#8 Irregular Holiday Traffic

Then there is irregular traffic during holidays and festivals.

Festivals like Diwali, Halloween, Cyber Monday, Black Friday, Christmas bring the shopping spirit out of people. On average, a consumer spends nearly 1226 $ on holiday gifts. And 40% of online sales are done on mobile phones.

It’s a huge market that can arrive on your site, and you must prepare your site to handle all the traffic and sales. And if you are running offers or deals, you should be ready for the visitors it will attract, else the people will call it false sales, and the site will be remembered as the scam.

With load testing, you will know how much traffic the site can handle, and once the analytics shows the traffic has arrived, you can begin scaling up the resources.

NOTE: Need for Efficient Hosting

An efficient and quality hosting can help you in hard times. 

For example: Festival traffic, Hacking attack, Bot Visitors, Site Down etc.

Yes, with a load test, you can prepare your site for the difficulties. However, with the support of quality hosting, you can tackle the unexpected turn of events.

At ServerGuy, we provide scalable hosting, and we will increase the resources as soon as the traffic surges on your site. We also monitor sites for hacking attacks, and bot visitors, to save the bandwidth of your site.

Wrap Up

In this post, I mentioned why Load testing is important.

So don’t forget to load test your site, and save your online business from any unexpected problem.

If there is an issue with load testing of your site, contact us.

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