Rarst posted a process on his own website that makes it possible to check all feeds for dead links. The process can be broken down to exporting all feeds in an opml file, extracting the links into a new text file and checking the links with a link checker.

Some feed readers might provide an easier way of discovering dead blogs either because the owner abandoned it or deleted the website completely. Google Reader for one is offering a feature called Subscription trends which show inactive feeds. Users have to click on the Trends link in the top left menu and choose the inactive tab under Subscription trends to get there.

The user can display the top 10, top 20 or top 40 inactive blogs. The name of the blog and the data of the last update is shown in the menu afterwards. It is then easy to unsubscribe to blogs that have not been updated by clicking on the trashcan icon.

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