The Hot Iron

A journal on business, technology and occasional diversions by Mike Maddaloni

Tuesday, January 27, 2009

Domain Names Are Case Insensitive

Did you know domain names are case insensitive? Had you even thought about it?

This is a question I have been asked a few times, so I thought I’d write about it and share with all. From a technical standpoint, domain names ignore case. Therefore, it you are typing in a domain name in a browser, you can use uppercase or lower case letters and it won’t matter. For a more technical description, read this article from the Internet Engineering Task Force on domain name case.

Why this question comes up is when people are presenting a domain name in print, whether in paper form or on a Web page or a PDF document. Typically this is if they want to capitalize one or more names that make up a domain name. For example, the domain name for The Hot Iron can be presented and entered into a browser as thehotiron.com, TheHotIron.com, theHotIron.com… you get the gist of it.

URLs May Be Case Sensitive

Despite the domain name being case insensitive, a URL may be case sensitive. The domain name portion will not be, but on some Web servers, the remainder of the URL may have both uppercase and lowercase characters, and you will need to be careful to enter them properly.

If you are planning on displaying a domain name on a billboard, be as creative as you’d like and mix character case all you want. If you are planning on displaying a URL on a banner… well, on second thought get another domain name to redirect to that URL.


Did you enjoy reading this? You are welcome to subscribe to The Hot Iron by RSS feed or by email.


Posted by Mike Maddaloni on 01/27 at 04:00 AM
TechnologyDomain Names • (3) CommentsPermalink


Comments

Same goes for Internet email addresses. I encounter a person who doesn’t realize this every so often. smile

Picture of btn Comment by btn
on 01/27/09 at 07:18 PM
 


Thanks for adding that Brian!

mp/m

Picture of Mike Maddaloni Comment by Mike Maddaloni
on 01/27/09 at 09:24 PM
 


there are some who believe that they are case sensitive, but I know different.

Picture of Rick Comment by Rick
on 08/15/12 at 06:57 AM
 


Page 1 of 1 pages


Post a Comment

Note: Comment moderation is active, and your comment will be viewable once it is reviewed.

Name:

Email:

Location:

URL:

Remember my personal information

Notify me of follow-up comments?

To ensure you are a human, please answer the following question:

What is 4 + 2 (spell out the word, no numbers)?

 

 

About The Hot Iron

photo of Mike Maddaloni

The Hot Iron strives to present unique content and perspective on business, technology and other topics by Mike Maddaloni, a Web and business strategist based in Chicago.

Subscribe by Email

Enter your email address:

Subscribe to odiogo
Text to Podcast

Listen to a podcast of The Hot Iron from odiogo

Search


Advanced Search

Most Recent Entries

Categories

Blogs I Read

Notable Links

Follow @TheHotIron on
Follow @TheHotIron on Twitter

Be an organ and tissue donor

Crafted in Chicago