Block third-party web ads with HostName Commander
You can use the ability of HostName Commander to point web site names to arbitrary IP addresses to block the third-party web advertisements from being displayed on the web pages or in the popup windows while you are browsing the Internet.
A third-party ad is an image that is loaded by a web site from a separate server, with a host name different from the host name of the main web server. For instance, many web advertisements come from the adserver.com web site. If you use HostName Commander to point the name adserver.com to some invalid IP address (such as 127.0.0.1), the web browser will not be able to connect to adserver.com, and that in turn will make it unable to download the advertising images from that server. As a result, the blank image placeholders will be displayed on the web pages instead of the actual advertisements. Since the main contents of a web site is loaded from a server with a different host name (such as www.cnn.com or www.news.com), the main content of the web pages will not be affected by the blocking of the adserver.com site.
(Of course, this method of blocking web ads works only if the main content and the ad images on a particular web page are served from different servers. If a particular web page displays ads from the same server as its main content, you cannot block the ads, because if you were to assign an invalid IP address to the server's host name, that would stop the delivering of the main content of the web site, too. If the sites you visit most display ads from their own servers, use the ad-blocking software specifically designed to filter web content and block web ads it contains.)
There are several lists of ad servers available on the Internet which can be imported into HostName Commander to block the third-party web advertisements.
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