TCP is one of the most important protocols of the "Internet protocol suite". TCP is a connection protocol that establishes connection between a client and a server before any data can be distributed. Altho, in its core TCP is a very complicated process, its basic functionality did not change since its first implementation.
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Website Monitoring is a key factor when developing and maintaining a website. Most common type of monitoring is 'availability monitoring' which basically checks the website's uptime. HTTP(S) monitoring, like this action, do not access the website's contents focusing more on a response to a specific querry.