Unique IP

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A Unique IP is an IP address that is specific to your domain. When you add hosting to a domain/subdomain, it’s assigned an IP on the Apache server which is shared with other sites. This shared IP address is most often the only IP you’ll need. However, certain applications may require you to add a Unique IP to your site. You can add a Unique IP to any Fully Hosted domain/subdomain hosted at DreamHost on the (Panel > 'Domains' > 'Manage Domains') page.

Dh-kb-important-icon.fw.png Important: DreamHost is unable to offer static IP addresses. This means that the IP of your site (including Unique IPs) are subject to change if necessary. DreamHost makes no guarantees that an IP address will never change. However when an IP change does occur, you will be notified via email in a timely fashion.

Do I need a Unique IP?

Unique IPs are most commonly used with domains that have secure hosting enabled. While it is possible to use secure hosting without a Unique IP, some older browsers which do not support Server Name Indication display a certificate warning when viewing your site. While not a comprehensive list, this includes:

  • Windows XP versions of Internet Explorer.
  • The default browser in Android 2.4 "Gingerbread" and earlier. (4.0 "Ice Cream Sandwich" and later will work correctly.)
  • Various older mobile browsers, including BlackBerry, Symbian OS, and older versions of Opera Mobile.

If you expect a significant number of the visitors to your secure site to be using these browsers, you will need a Unique IP.

Other use cases

A Unique IP is necessary:

  • if you are interested in accessing the site directly with an IP address (this is useful when the domain in question is not yet using DreamHost's nameservers/DNS records). If you attempt to access your site through the shared server IP, the DreamHost ‘Site Not Found’ page opens which you can read about in the following article:
Site not found
  • if another domain hosted on the same shared IP as yours is blocked by certain restrictive firewalls (e.g., GFW), adding a Unique IP address to the site may help it to bypass filtering (assuming the filter is based on the shared IP). This approach may also be of interest if you want to be sure your site is not associated with other sites, regardless of the presence of filters. An example of this can be found in the ‘China Firewall’ article:
China Firewall
  • to enable certain services on your domain/subdomain, most notably anonymous FTP.

Does a Unique IP help my page rank?

No, it does not. With the current shortage of IP addresses as adoption of IPv6 continues (and the fact that there is an extra cost associated with adding them to your domains), it's important to know that adding a Unique IP to your domain will not affect its search engine ranking.

If this is the only motivation to add an IP to your domain, then there is no need to add one.

Creating a Unique IP address for a domain

It's simple to add a Unique IP to your DreamHost account. Unique IPs are just $5.95/month, or you can save $11.45 by pre-ordering for an entire year at $59.95.

To create a Unique IP address:

  1. Open the (Panel > 'Domains' > 'Manage Domains') page.
    01 IPv6.fw.png
  2. Click the Add IP link under the desired domain.
    The Adding unique IP address page opens:
    02 Unique IP Add IP.fw.png
  3. Select a payment option from the dropdown menu, and then click the blue Add a unique IP to DOMAIN now! button.
    03 Unique IP Added.fw.png
  4. Return to the Manage Domains page to confirm the IP address is added.

  • Once the IP address has been added, it will take several hours for it to resolve online.
  • This Unique IP address will automatically renew at the end of its term (monthly or yearly). You must remove it manually to stop any future charges.

Removing a Unique IP address from a domain

To delete a Unique IP address:

  1. Open the (Panel > 'Domains' > 'Manage Domains') page.
    04 Unique IP Remove.fw.png
  2. Click the red X icon next to the Unique IP you wish to remove.
    The Destroy IP address page opens:
    05 Unique IP Destroy.fw.png
  3. Confirm the deletion by checking the box and clicking the blue Remove ###.###.###.### from DOMAIN now! button.