Is _p_k5swex3pmzpvi4tvon2a.twitter.com Safe?

This is the WoT scorecard for hxxps://twitter.com/Web_of_Trust but a funny-looking name _p_k5swex3pmzpvi4tvon2a.twitter.com is displayed in scorecard's title and header. (This is not the right scorecard for the Twitter home site hxxps://twitter.com/ )

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