What is the best online website speed checker?

[Good-Person]

When you create any kind of website, it is always recommended to check the speed of the website. This is important because you need to develop the website after considering how your website works from a visitor's perspective. So, what are some of the best website speed checkers?

 

[Nomad]

When I have to check my website speed, I do not use any particular tool, I just search for a website speed checker on Google and use the tool that appears on the top list. Normally, I use Pingdom and WebPage Test. I do not know how realiable these tools are.