The top eleven tools for performance testing are as follows:
- Google Page Speed Insights – a site performance from Google, both for mobile and desktop devices.
- Webpagetest – it checks to detect the causes of the slow loading of the site.
- GTMetrix – it allows you to check the performance of the site.
- Pingdom – it’s a monitoring service and a free automated website testing tool.
- Gomez – viewing from multiple locations. Over 100 locations to choose from.
- Alertra – viewing from several locations.
- Load Impact – testing from several locations and performance reports.
- FeedTheBot – tests for website optimization and performance.
- Dotcom Monitor – site performance tests from 20 locations with just one click.
- RedBot is a small utility for checking HTTP headers.
- Neustar Ultratools – a set of utilities for checking the speed of hosting, DNS, and more.