Introduction to 12 free website monitoring services

In the cold winter months, we not only backup data every day, but also monitor the status of their own website server, once the server crashes or conditions, we can know the situation in the first time, and then immediately restore the website. Of course, it's not practical for us to be able to do this 24/7, so Lu Songsong has summarized some free website monitoring services here, allowing third-party tools to detect our website.