I will load testing and performance testing for website and API with k6
QA Engineer, Website Testing, WCAG Accessibility and Playwright Automation
About this Gig
Load test your website or API to find performance bottlenecks before launch or traffic spikes. I'll test with up to 5,000 virtual users using k6 or JMeter, analyze response times and error rates, then provide recommendations to fix issues.
What I do:
Load, stress and spike testing with k6 or JMeter
Website and REST API testing
Realistic user scenarios (login, browse, checkout)
Response time, throughput and error rate analysis
Lighthouse page-speed check (Core Web Vitals)
You receive:
Clear report with charts and a plain-English summary
Bottlenecks found, with recommendations to fix them
Test scripts you can re-run any time (Standard and Premium)
Perfect for SaaS apps, e-commerce stores before big sales, and APIs before launch.
Message me with your expected number of users and I'll suggest the right test.
Testing application:
Web application
Development technology:
Java
•
JavaScript
•
Node.js
•
PHP
•
Python
Device:
Mac
•
Linux
FAQ
Will load testing crash my live site?
It can put heavy load on your server, so I recommend a staging environment. If we test production, we schedule it for a low-traffic time.
k6 or JMeter?
I recommend k6 for modern APIs and CI pipelines, and JMeter if your team already uses it. Either way you get the scripts.
Do you fix the performance issues?
I find the bottlenecks and give your developers clear recommendations to fix them, such as slow endpoints, queries or missing caching.
Can you test APIs only?
Yes. Send me your API docs or a Postman collection and I will build realistic load scenarios from them.
What do you need from me?
Your website URL or API endpoints, test accounts, and your expected traffic, for example 500 users at the same time.

