A good website monitoring service is going to do much more than simply send advice when a clubpenguin.com. The very best services will break down the response duration of a web request into important categories that will allow the system administrator or web developer to optimize the server or application to offer the best possible overall response time.
Here are 5 important components of response time for an HTTP request:
1.DNS Lookup Time: The time it takes to obtain the authoritative name server for the domain as well as for that server to solve the hostname provided and return the appropriate IP address. If this type of time is simply too long the DNS server must be optimized so that you can provide a faster response.
2.Connect Time: The time has come required for the net server to respond to an incoming (TCP) socket connection and ask for and to respond by setting up the connection. If this describes slow it always indicates the operating system is trying to reply to more requests than it can handle.
3.SSL Handshake: For pages secured by SSL, the time has come required for both sides to negotiate the handshake process and hang up up the secure connection.
4.Time and energy to First Byte (TTFB): It is now time it takes for that web server to react with the first byte of content after the request is shipped. Slow times here almost always mean the net application is inefficient. Possible reasons include inadequate server resources, slow database queries and other inefficiencies related to application development.
5.Time and energy to Last Byte (TTLB): It is now time needed to return all the content, after the request continues to be processed. If this describes taking too much time it usually shows that the Internet connection is simply too slow or is overloaded. Increasing bandwidth or acquiring dedicated bandwidth should resolve this issue.
It is extremely hard to diagnose slow HTTP response times without all of this information. With no important response data, administrators are still to guess about the location where the problem lies. Lots of time and money may be wasted trying to improve different aspects of the web application with the hope that something will continue to work. It's possible to completely overhaul an online server and application only to find out the whole problem was really slow DNS responses; an issue which exists on the different server altogether.
Make use of a website monitoring service that will a lot more than provide simple outage alerts. The most effective services will break the response time into meaningful parts that can allow the administrator to diagnose and correct performance problems efficiently.