In a recent question I was answering, I had used localhost and your.domain.tld as examples for a user with regards to RWW and OWA. However, I had to obfuscate the URL (think I put brackets around the colon) as I had exceeded the number of links permitted for my current rank.

Could we modify the parser to have a "whitelist" of URLs like 'localhost' or '' and possibly anything ending in .local?

  • 6
    As they're not real links I think they should be excluded.
    – ChrisF Mod
    Jul 16, 2009 at 12:43

3 Answers 3


Maybe example.com, (and example.net, example.local, etc) since that's the domain that's actually reserved for this purpose.

  • maybe the .local TLD as well... Jul 16, 2009 at 12:44
  • Is it really reserved? By whom? IEEE? Or do you mean just at SF/SO. Curious...
    – gravyface
    Jul 16, 2009 at 12:44
  • Wow, I just went to example.com and have never seen that before. That's great. I thought for sure some squatters owned that.
    – gravyface
    Jul 16, 2009 at 12:46
  • 3
    Yep, there's actually an RFC about this.
    – Pops
    Dec 17, 2011 at 22:40

Try formatting them as code using backticks, e.g. http://localhost.

In addition to not counting against the link limit, it also prevents them from rendering as links in the first place, which is nice (they wouldn't link to anywhere useful anyway).

  • 1
    I disagree that they aren't useful. When a user is developing locally, and using a development server, being able to provide them with a link that actually goes to their page is useful. Jun 20, 2012 at 5:42

I disagree with this. There are lots of times where we want the person to be able to click on a link to localhost, where she is running a dev server on her machine.

For instance, I just attempted to answer this question, and could not enter a link to localhost for this user to use: instead it needs to be marked as code.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .