Display a Custom Message and Logo with OpenDNS and Change Network Admin Email

OpenDNS gives you a faster, safer, and more reliable Internet. This guide shows you how to customize the look and feel of the pages that are shown when OpenDNS blocks a page.

OpenDNS is a customizable DNS service that protects you from phishing, speeds up your web browsing and allows you to filter content and block websites.  By default, OpenDNS comes with OpenDNS branding and generic text explaining why sites are blocked. But if you are running OpenDNS on a corporate or school network, you might want to add your own logo and messages.

Before beginning, you might want to learn a bit about how OpenDNS works and how to set up OpenDNS on your home network (custom messages are fun at home, too). If you’ve got that covered, you can move on:

Visit your OpenDNS Dashboard, click on Settings and choose your network from the drop-down menu.

custom logos in openDNS

Click Customization.

upload custom logos in opendns from settings -> customization

Click Choose File. Browse to your custom logo’s image file and select it.

customize your logo in opendns

Your filename will be shown to the right of the Choose file button. Click Upload.

upload a custom logo to opendns

The image will need some editing before adding it to your OpenDNS setup. Click Click here to edit it.

crop an opendns logo to 125 x 70 pixels

Crop your image to fit and click Save Changes. (Tip: To save yourself the trouble, start with a JPEG that is 125 x 70 pixels.)

opendns logo dimensions are 125 by 70 pixels

Back on the Customization tab, select your custom logo and click Apply.

apply a custom branded logo to opendns

Add a Custom Message to your OpenDNS Block Pages

There are three kinds of pages that OpenDNS shows:

  • The Guide page is shown when a website doesn’t exist, isn’t working or a link is broken.
  • The Block page is shown when a website is blocked according to the content and web filtering rules you set up.
  • The Phishing block page is shown when a site known for malicious activity (according to OpenDNS) is blocked.

For each one of these pages, you can display a different message. By default, it’ll show the OpenDNS boilerplate information and a brief explanation of why the page couldn’t be shown. But if you want to snazz it up a bit, you can.

From the Customization tab, scroll down to one of the three page settings panes.

add custom greetings to opendns

change guide page, block page and phishing page messages in opendns

Select the second option for the page you want to customize. For example, Guide with your message or Block page with your message or Phishing block page message.

add custom message to opendns

Type in your custom message and then click APPLY. Now, your custom message will be displayed when a site is blocked.

opendns phishing site blocked

If you are filling out a custom block page message, you have two boxes: one that’s shown when a site is blocked because it’s part of a filtered category (e.g. pornography, social networking, gambling) and one that’s shown when an individual domain name is blocked.

block page customization opendns

For the first example, let’s say you’ve blocked all news and blog sites at work. It’ll say something like the following:

this domain is blocked opendns custom message

Notice that the category of the site is also listed.

In the second example, I’ve specifically blocked, so you’ll see this:

this domain is blocked custom email and message

Change Your Network Administrator Contact Email in OpenDNS for Network Feedback

On any of the block pages, the user will have an opportunity to Contact your network administrator (you) via email.

change opendns contact info

This might elicit some anonymous harassment (users can punch in whatever name and email they want), but it might also reveal sites that need to be whitelisted for legitimate reasons.

email from opendns users

You can change the email address where you receive these messages by clicking My Account  and Email Settings. You have two addresses. The second one (Network feedback email address) is the one that receives emails from the form on the blocked page notice.

change opendns network admin email addy


These are minor tweaks to the already full-featured OpenDNS service. But they might help inexperienced users feel more comfortable on your network, or at least give them clearer direction on what they should do to unblock a website.

There’s one other customization you might want on OpenDNS: removing the advertisements on the block and guide pages. The fix for that is simple, but not free: sign up for a paid Premium DNS account from OpenDNS and the sponsored content and ad banners will be disabled by default.

Do you use OpenDNS’s customization settings? Tell us about yours in the comments.



  1. Jesse

    Facebook will not bring up the blocked page now, it just says the network is not secure.

  2. mike

    I get the same results noting displays the block page just messages that something is not secure.

    If you continue to it you might get what looks like a parked doman page and sometimes you get teh block page

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