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Category: Glossary of website monitoring terminology

  [9] Glossary of website monitoring terminology  1 2 
# 38 POP3

Post Office Protocol 3. A protocol that provides a simple, standardized way for users to access mailboxes and download messages to their computers. You can use this service to monitor your POP3 Server that is running on the default port 110 (if you need to monitor a POP3 server that is running on a different port, you can use the TCP Port service).

Our monitoring station will attempt to connect to port 110 of the host (either IP or domain name) and wait for a response that starts with sub-string "+OK". The connection will timeout after 30 seconds. If response "+OK" is not received, the service will be considered to have "failed".

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# 33 NNTP

Network News Transfer Protocol, the protocol used to send, distribute, and retrieve USENET messages. You can use this service to monitor your NNTP Server that is running on the default port 119 (if you need to monitor a NNTP server that is running on a different port, you can use the TCP Port service). Our monitoring station will attempt to connect to port 119 of the host (either IP or domain name) and wait for any response. The connection will timeout after 30 seconds. If no response is received, the service will be considered to have "failed".

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# 20 Kbps

Stands for KiloBits Per Second. A measure of bandwidth capacity or transmission speed of 1,024 bits per second. For example, T1 lines transmit at 1.536 Mbps (mega-bits-per-second) which is equivalent to 1,536 Kbps. A broadband connection usually starts at about 512Kpbs. Most analog (not DSL nor cable) modems transmit at 56Kpbs or 28.8Kbps.

When using the InternetSupervision Url Check Tool, the Kbps column shows at what transmission speed the page loads from different geographic locations. Higher Kbps values mean that the page is loading at a faster rate. A fast website will have its pages load in about 200 Kbps or faster.

The Kbps value is calculated by dividing the KBytes (the size of the page) by the number of seconds it took to load the page. Thus, if the page is very large it may load slower based on the elapsed time, but at a faster transmission speed or higher Kbps.

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