I built a website uptime checker and I'm looking for feedback

I know there are other website uptime monitors and checkers so you may be wondering why this is any different?

It checks the uptime very frequently to show the true website uptime present and passed.

Runs from multiple locations

Lightweight

easy to use

URL: https://isitup.site

Purpose To check the uptime of websites both current and historic.

Technologies Used DEBIAN 10, PHP7, REDIS, Bootstrap, ChartJS

Feedback Requested:

General Feedback of use, any suggestions?