A good web site monitoring service will do much more than simply send a reminder when a cabelas.com. The most effective services will break up the response duration of a web request into important categories that will permit the system administrator or web master to optimize the server or application to offer the best possible overall response time.
Listed here are 5 important components of response time for an HTTP request:
1.DNS Lookup Time: Enough time it takes to obtain the authoritative name server for the domain and then for that server to solve the hostname provided and return the correct IP address. If the time is simply too long the DNS server must be optimized in order to provide a faster response.
2.Connect Time: This is the time required for the internet server to respond to an incoming (TCP) socket connection and request and to respond by establishing the connection. If this is slow it often indicates the operating system is trying to answer more requests than it can handle.
3.SSL Handshake: For pages secured by SSL, it is now time required for each side to negotiate the handshake process and hang up the secure connection.
4.Time and energy to First Byte (TTFB): The time has come it takes for the web server to reply with the first byte of content following your request is distributed. Slow times here typically mean the web application is inefficient. Possible reasons include inadequate server resources, slow database queries along with other inefficiencies linked to application development.
5.Time to Last Byte (TTLB): It is now time needed to return every one of the content, following your request may be processed. If this sounds like taking too much time it usually suggests that the Internet connection is simply too slow or perhaps is overloaded. Increasing bandwidth or acquiring dedicated bandwidth should resolve this problem.
It is extremely challenging to diagnose slow HTTP response times without this information. With no important response data, administrators remain to guess about in which the problem lies. A lot of time and money can be wasted trying to improve different pieces of the web application with the hope that something will work. It's possible to completely overhaul a web server and application only to find the whole problem really was slow DNS responses; a problem which exists over a 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 will allow the administrator to diagnose and correct performance problems efficiently.