Can someone tell me the exact difference between mobile agents and web crawlers?
Thanks in advance.
Mobile Agent is a category of Agent Strings that are ment for Mobile Devices have a lok at
http://en.wikipedia.org/wiki/List_of_user_agents_for_mobile_phones
Where as web crawlers are Robot programs that are used by different programs like Search engines for indexing pages...
http://en.wikipedia.org/wiki/WebCrawler
Like one of google's crawler Agent String is "DoCoMo/1.0/P502i/c10 (Google CHTML Proxy/1.0)"
which belong to "Google (216.239.39.x) proxy server "
Here is a complete list of Agent strings Including Crawlers,Spiders...
Edit As u requested...
See if someone visits your site and you check his User-Agent. If he is using a Firefox, you will get a string for that, if he is using A mobile Device like an iPhone then u get the user-Agent of the Browser installed on the Mobile. If the visitor is a Crawler then u get the user-Agent String For the same...