How to add or change DNS records for your own domain?

If you already have your own domain name and want to change DNS records follow these instructions:

1) Namecheap - http://www.namecheap.com/support/knowledgebase/article.aspx/555/2/d...
2) Name.com - http://support.name.com/hc/en-us/articles/205934547-Changing-Your-N...
3) GoDaddy - http://support.godaddy.com/help/article/680/managing-dns-for-your-d...

Procedure to change DNS records for other domain registrars are similar.

DNS changes in some cases can take up to 48h for global DNS servers to update information.