Updown is an online uptime monitoring tool that checks website status periodically by sending an HTTP request to any URL. If the website is not responding correctly, then it notifies you by SMS or email.

Features:

• It offers multilingual supports.
• Updown provides API to build a custom integration.
• It conforms to the downtime from a range of locations.
• This software matches the presence of string instead of HTTP status.
• You will receive alerts for expiring soon or invalid certificates.

References

Here are references that you can use to get started and learn more about Updown:

• Official Website

Tutorials

For some that like to learn from a video tutorial, you can check out tutorials below :

• An Overview Tool Updown