In Software Testing, the Canaries is a piece of code that continuous sends requests to check the health of the service. It is like back in Coral mining, the canries are sent to the mine and if something goes wrong, the canaries will stop tweeting.

Using CloudFlare Pro, it is very easy to set up the canaries to check and monitor the health of the services given a URL e.g. API.

Add/Edit a Health Check Rule

In Traffic Tab, you’ll be able to add/edit health checks rules:

Specify the URL, the expected response code, and the expected text to search in the response. If anything goes wrong, you will get emails for notification:

With this feature, you’ll be able to see when your service breaks – much earlier indicator possibly than your customers figure out!

–EOF (The Ultimate Computing & Technology Blog) —

推荐阅读：
数学题:丢番图的墓志铭　 数学题：如果一个圆柱体的底面直径与高相等　 数学题:卧车和客车所行路程比15:16　 要将糖和水按5:100的比配制成糖水　 数学题：一个长方体木块与一个正方体木块刚好可以拼成一个大长方体木块　 数学题:如果每间5人，则有14人没床位　 都是马虎惹的祸作文400字　 美中不足　 诗酒永相随（文/白水先生）　 学习古人的智慧