Go back to all articles

Why Load Testing Is Essential for Ecommerce Businesses

May 17, 2024
8 min read

The success of 26 million online retailers depends on the page load time. It significantly impacts the profitability of online services and sales, as customers don’t want to wait over three seconds to make a purchase. To ensure the desired speed, load testing is widely applied.

Common Ecommerce Problems That Can Be Solved with Load Testing

common ecommerce problems load testing solves

Extended Loading Time

Extended loading time impacts customer engagement, retention, and conversion rates. If a page of a platform takes more than three seconds to load, visitors get irritated and gradually lose interest in the purchase. The typical result is – a high bounce rate.

A one-second delay in page load decreases conversion rates by 7%, brings down average page views by 11%, lowers customer satisfaction by 16%, and raises a bounce rate to 90%. Load testing helps mitigate such risks in advance.

However, it is never too late to enhance the loading time.

For instance
Tynor has prepared for peak sales within 4 days with PFLB decreasing its page load time under load to 2 seconds and enabled the website to accommodate over 10,000 users per day.

High Users Load in Peak Seasons

During periods like Christmas, Black Friday, sales, etc., websites often crash due to the influx of users. They become unresponsive to visitors trying to make purchases. Unwilling to wait, people go to other platforms, and 72% of retailers lose money. To prevent such consequences, companies get prepared for peak loads.

For instance
Birkenstock increased the performance of its website by two times while getting ready for a big sale. The company wanted to check the endurance of its platform and asked PFLB for help. The team used the client’s Google Analytics data, designed a relevant load-testing scenario, and conducted the test. The results didn’t validate the first iteration: the web-server caching had not been configured, and NGINX configurations were not optimal.

To improve the platform, PFLB helped Birkenstock with a detailed list of site optimization recommendations. The company implemented them, and then the PFLB team rechecked the software: the core issues turned out to be minimized, and the average response time decreased to 3 seconds and less, and the number of concurrent visitors increased from 300 to 700.

Mergers of Companies 

Companies merge every day. In 2023 alone, nearly 410,000 merger and acquisition deals were detected worldwide. Meanwhile, 50% to 90% of such activities fail, with companies, especially the medium ones, unable to achieve the expected value. System-related issues are among the main causes because businesses don’t always prepare appropriately for, for instance, doubling the number of users. However, a load test of internal systems can help.

Implementations Rollout

Let’s imagine an extensive store network where software is gradually rolled out across 500 stores. Without load testing and the consequent optimization of the core system, this network can operate with glitches or slowdowns. For a business, it means a damaged reputation.

New Software Releases

New software releases can either boost one’s sales or adversely affect users. For instance, in 2022, Primark crashed after the release of the click-and-collect option. Hopefully, the company managed to solve the issue the same day, but the ones that can’t replicate and run stress tests tend to face noticeable losses. 

Ecommerce Businesses That Need Load Testing

Ecommerce businesses vary in target audience, format, load, and size. Larger entities prioritize effective and frequent load testing, utilizing automation and bespoke solutions like PFLB.

Smaller clients often lack funds for load testing. When the website crashes, some manage the consequences, while others migrate to cloud services or assume that the cost of an error will not be high.

Ignoring the problem is a poor decision, which may lead to serious long-term outcomes for the business. Clients leave, and their loyalty decreases, costs grow, and damage to the brand reputation is caused. Hence, for ecommerce business, it’s better to seek assistance from outsourcing pros like PFLB in load testing.

Want to Learn More About Our Performance Testing Services?
Find out what’s included and how to start working with us.


More and more users prefer online shopping, causing peak load hours, days, and even weeks to the ecommerce websites and apps. 

To prepare for peak load times, companies should optimize their software and ensure it stands the expected loads. The first step to it is load testing. 

It helps to find and fix problems like slow-loading pages and prevent website crashes. When timely conducted, load testing enables businesses to operate smoothly at peak hours without any losses and increase the number of loyal customers.

Table of contents
Let us know about your needs
We can provide multiple performance testing services and a lot more than that if the situation needs a far more complex approach.
Get a quote You’ll hear back from our tech account manager in one day if not sooner

Related insights in blog articles

Explore what we’ve learned from these experiences
8 min read

Everything You Should Know about Performance Testing of Microservices

everything you should know about testing microservices preview
May 2, 2024

About 85% of enterprise businesses use microservices. In this article, we will cover the primary specifics of microservices, explain why they need performance testing, and highlight how to make this process efficient. Microservices in a Few Words Microservices (or microservices architecture) refers to a methodology for developing and deploying applications. This approach separates an extensive […]

4 min read

PFLB is Now SOC2 Compliant

pflb is now soc2 compliant preview
Apr 24, 2024

The PFLB team is happy to share the good news. We have passed the SOC 2 compliance accreditation. It means we can assure our clients that our cooperation will be entirely secure. What Is SOC? Introduced by the American Institute of CPAs (AICPA), SOC, or Service Organization Control, is a cybersecurity series of reports made […]

11 min read

How Do Businesses Benefit from Frontend Performance Testing?

how do businesses benefit from frontend performance testing preview
Apr 15, 2024

Crucial bottlenecks are usually backend-related. That’s  why backend performance testing is generally regarded as a must. However, only 1% of companies perform frontend performance testing. They don’t consider that to achieve the best business results, one should combine the two types.  Let’s prove it. We will define their differences, emphasize the importance of conducting backend […]

11 min read

Roles and Responsibilities of Performance Tester

performance testing roles and responsibilities in a nutshell
Apr 9, 2024

The core of efficient performance testing is an experienced, certified and well-structured team of professionals, who have already worked in similar projects and learned all the peculiarities of QA testing types and protocols.  If consciously chosen, they can evaluate a product, test its behavior under load, check its response time, etc., and thus, empower it. […]

  • Be the first one to know

    We’ll send you a monthly e-mail with all the useful insights that we will have found and analyzed