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：
食药总局公布不合格食品名单蜂蜜上黑榜　 板栗养胃健脾是医药学家推崇的补肾果　 冬季手脚冰凉者可以多喝“三红”暖身汤　 老百姓对于食物中致癌物的认识误区　 三类食品是引发癌症（恶性肿瘤）的因素　 枸杞虽好但两种人吃了反而对健康有害　 4个与大豆营养价值有关的真假说法　 早餐第一口吃什么样的食物最养胃　 萝卜颜色各异 营养价值各不相同　 冬季养生美味 各种萝卜汤养胃又暖身