Octoperf
Octoperf provides a performance testing service and sits on top of open source software including Apache JMeter.
Octoperf has several options but does offer a FREE 50 vusers package.
Run your first test
You will need to sign up to use the service.
Login
Click on the Website or Rest API button.
Click Static Website
Enter the following URLs
https://martkos-it.co.uk
https://martkos-it.co.uk/blog
https://martkos-it.co.uk/our-work
https://martkos-it.co.uk/our-services
Click Create VU button
Click Create Scenario
Click Launch 10 VUs
Click Next
Click Launch
While the test is executing a series of graphs are generated along with a summary.
Octoperf has a plethora of features. The website has great documentation. The FREE tier provides access to 50 vusers, unlimited tests and 2 load generators. Give it a try here.