Web Content Filter

Introduction

MDM lets you control the contents that can be viewed on the browsers of managed devices using Web Content Filter. Web Content Filter lets you blacklist or white list URLs as explained below:

Other than restricting URLs, Web Content Filter also provides the option of restricting content, whereby websites with adult content are automatically blocked irrespective of whether the website URL has been white listed or blacklisted. Web Content Filter is applicable for Supervised devices running iOS 7.0 or later versions.

  • Blacklisted URLs can be still be accessed if the corresponding app is present on the device. For example, even if all Facebook URLs have been restricted, users can still access Facebook, if the app is installed on the device. To prevent this, the apps must be blacklisted as explained here.
  • Blacklisting/White listing HTTP version of the URL automatically blacklists/white lists the HTTPS version of the URL and vice-versa.
  • If a blacklisted URL is redirected, then the restriction will not be applied on the redirected URL, unless it is also blacklisted
  • Mobile version of the URL and country based domain extensions should be considered as separate URLs. Example : facebook.com, facebook.co.uk, m.facebook.com, etc

Adding URLs in Web Content Filter

The following table explains the various scenarios where Web Content Filter can be used.


SCENARIO EXAMPLE URLs
Fully blacklist all the sub-folders/directories of a website

Specify example.com to automatically block all the sub-folders/directories(example.com/directory1). However, this doesn't block the sub-domains such as m.example.com

Blacklist a specific sub-domain of a website

Specify sub-domain.example.com to block the sub-domain. However, this doesns't block the website example.com or other sub-domains such as m.example.com

The URL blacklisted/whitelisted gets redirected to another URL Specify the second URL(to which the first redirects to). If example.com redirects to example.us,then example.us must be specified
The URL combined with a port number The URL gets completely blacklisted/white listed as port numbers are not considered

Distributing multiple Web Content Filter policies to the same device

The following table explains how Web Content Filter works on the device, when multiple profiles are pushed to the device.


PROFILE 1 PROFILE 2 EXPECTED BEHAVIOUR
White list URL #1 and #2 White list URL #1 and #3 URL #1 is white listed. All other URLs are automatically blacklisted.
Blacklist URL #1 Blacklist URL #2 URL #1 and URL #2 are blacklisted. All other URLs are automatically white listed.
Blacklist URL #1 White list URL #1 All URLs are automatically blacklisted.
Blacklist URL #1 and URL #2 White list URL #3 and URL #4 URL #3 and URL #4 are white listed. All other URLs are automatically blacklisted.
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