TWITTER'S anti-porn filters have blocked Dominic Cummings’ despite dominating headlines for days.

According to research by the Guardian, the correct spelling of Cummings' surname has fallen foul of the filters, meaning that a number of misspellings have instead been trending, including #cummnings, #dominiccummigs and #sackcummimgs. The hashtag #cumgate has also trended, having seemingly not been stopped by the censors.

The place names Durham, County Durham and Barnard Castle have also been trending.

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The site blocks all photo and video results containing search terms it believes may contain sensitive content.

The filter also affects suggested hashtags, meaning users who tried to type  #dominiccummings were instead presented with one of the misspelled variations to auto-complete, helping them trend instead.

In computer science this kind of accidental filtering is called the Scunthorpe problem due to the Lincolnshire town’s regular issues with such censorship.

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Although Twitter does not publish the contents of the word filter list, users can check whether a particular term is blocked from trending by searching for it. 

Twitter declined to comment to the Guardian on the filtering.