Google Analytic is best option check for website's traffic.

Using google analytics you can trace traffic.

Google anyalstics is best for cheking tarffic a website. I am also use statcounter.

Google analytic is best for checking traffic and other information about you website, after that you can achieve your traffic easily.

Google Analytics for sure

But be sure to add your own IP to the exception list otherwise it will keep including your own visits in the stats too.

Google Analytics is the Best way to check Traffic. you can check Traffic Hourly , Day , Weekly Monthly

You can use Google analysis to check your website traffic

With the help of these tools, you can check your website traffic, session by session-
SEMrush, Similar web, Google AdWords Display Planner, Alexa.com

How to improve Alexa ranking of my site..?
 

How to improve Alexa ranking of my site..?

If you want to see the traffic that is coming to your site, for that google analytic it will be the best option. If you want to check somebody else website traffic than you can use Alexa.