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My question sums it up. If I navigate to a certain URL, is there a way for me to tell as a user whether or not that domain name is CNAME'ing, or performing a 302/301?

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closed as off-topic by Andrew B, MichelZ, Ward, mdpc, MadHatter May 7 '14 at 8:42

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions must be relevant to professional system administration. Server Fault is dedicated to professional system and network administrators. End user and enthusiast questions are off-topic (contact your system administrator or hire a professional to help you out). Please see the Help Center for more information." – Ward, mdpc
If this question can be reworded to fit the rules in the help center, please edit the question.

If an http redirect (301/302) happens then the url changes. If there is a CNAME record then nothing changes. Is that what you were going for or can you clarify? – Håkan Lindqvist May 6 '14 at 17:23
up vote 2 down vote accepted

Sure, use dig / nslookup to check if the host is a CNAME, and use Fiddler to see if you are redirected.

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no, unless you are watching the packet stream. A browser plugin could potentially let you know if you've hit a 30x redirect, but not a CNAME, only your dns resolver would be aware of that

Edit - I prefer MichelZ answer, was unaware of Fiddler. My answer was from the angle of a traditional user in a browser...

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