What is the meaning of Certificar?

to certify

to certify; to attest (to assert as true or meeting a standard)

to certify (to give an official certificate to)

to make sure (to check whether something is true or proper) [with de ‘of something’ or de que (+ indicative clause) ‘that ...’]

to make sure (to remember to) [with de (+ infinitive) ‘to do something’]

to certify

Source: wiktionary.org