Hey,

Good question. Actually we have a technology that analyses semantically the webpage and determines the meaning of each elements.

Basically it's a bottom-up approach, we first try to guess the meaning of an element; then we take one step back and try to find contextual information that helps us refine the meaning.

We thought about the crowdsourcing approach, but it requires that the few first users have a shitty experience (because Dashlane isn't working as expected on these sites). That's why we prefered a more generic approach.