With this tool you can see if the images on your website can still be optimized without loss of quality.
Deity is a Dutch middleware platform.
Boomi is an enterprise iPaas solution with which you can link the platforms together as middleware.
Make (was Integromat) is a platform with which you can easily connect different applications.
Sitereport is a tool from Netrcraft with which you can get a report on which software a site uses.
Google page speed is the standard when it comes to performance measurement
Pingdom is a platform that can be used to measure the performance of websites.
Webpagetest.org offers a free environment with which you can test the performance of a website.
Uptrends is a complete suite of uptime monitoring and performance dashboards.
New Relic is an enterprise solution for performance measuring and software quality management.
Troubleshoot websites, networks, and CDN for quick fixes.
Nice measuring environment that tests for free from 3 locations at the same time.
A quick and easy tool is the Sucuri Load Time Tester.
One of the newest website performance tools is offered by Yellow Lab.
This free tool from Google analyzes the code of your website and provides advice.
Loadstorm is a platform with which you can perform a stress test or load test on your website.
Locust is an open source load testing tool.
Loader.io is a free load testing service that can stress test web apps and APIs with thousands of simultaneous connections.