Expresses that a fact is generally known or assumed to be known. The more common spelling is 'bekanntermaßen'.
example
Schokolade ist bekanntermassen nicht besonders gut für die Zähne.
Chocolate, as is well known, is not especially good for your teeth.
Usage tips
Modern spelling
The spelling 'bekanntermassen' is outdated. Today, only the form 'bekanntermaßen' is considered correct. In modern texts, you should always use this spelling.
EXAMPLE
Sport ist bekanntermaßen gut für die Gesundheit.
Exercise, as is well known, is good for your health.
Sentence position
As an adverb, 'bekanntermaßen' (as is well known) can stand in different positions in the sentence. If it is in position 1, the verb follows. But it can also stand after the verb and the subject.
EXAMPLE
Bekanntermaßen hat die Erde nur einen Mond.
As is well known, the Earth has only one moon.
Register and style
The word belongs more to written language or a somewhat more formal style. It is used to mark a statement as generally known and to create a shared basis of knowledge.
EXAMPLE
Der Klimawandel hat bekanntermaßen weitreichende Folgen.
Climate change, as is well known, has far-reaching consequences.
Compare with
near_synonym · confusable
bekanntermassen vs offensichtlich
obvious / apparently
'offensichtlich' and 'bekanntermassen' can both present something as clear or not surprising. 'offensichtlich' refers to the fact that you can easily recognize something, for example from a situation or from visible signs. 'bekanntermassen' means that something is generally known or assumed to be known. The more common spelling is 'bekanntermaßen'. The words can be confused because both express certainty. In practice: 'offensichtlich' fits when you see something or infer it from the situation. 'bekanntermaßen' fits when you are referring to a known fact.
bekanntermassen
Italien ist bekanntermassen ein beliebtes Reiseziel für Familien.
Italy is, as is well known, a popular travel destination for families.
offensichtlich
Nach dem Gespräch war offensichtlich, dass die Kollegin mit der Entscheidung unzufrieden war.
After the conversation, it was obvious that the colleague was unhappy with the decision.