What is another word for validator?
Pronunciation: [vˈalɪdˌe͡ɪtə] (IPA) 
The word "validator" refers to someone or something that confirms or proves the truth or validity of a statement, document, or idea. There are several synonyms that carry a similar meaning to this word, including verifier, authenticator, certifier, attester, and corroborator. A verifier is someone or something that ensures the accuracy or correctness of a thing or a statement. An authenticator, on the other hand, is a person or a tool that establishes the true identity or origin of a document or item. A certifier is someone who guarantees the quality or validity of something, while an attester is someone who formally declares or testifies that something is true. Finally, a corroborator is someone who supports or confirms the truth of a claim or statement through evidence or testimony.
