2FA provides much better security than passwords alone, but not every website supports it. You can find a list of websites that support 2FA at <a { $url_2fa }>https://twofactorauth.org</a>, as well as a list of sites that don’t support 2FA and ways you can ask them to add support.
Le authentication a duo factores offere multo melior securitate que le sol contrasignos, ma non tote le sitos web lo supporta. Tu pote trovar un lista de sitos web que supporta authentication a duo factores a <a { $url_2fa }>https://twofactorauth.org</a>, e un lista de sitos que non supporta authentication a duo factores e le manieras que tu pote demandar illes adder ille auxilio.