This is the 4739th most frequent Russian word.
зайти
"Зайти" means "to drop by," "to come in," or "to stop by."
Here, 'зайду' implies a short, casual visit or stopping by someone's location.
Я зайду к тебе вечером.
I will visit you in the evening.
In this context, 'зайди' means to navigate or access, typically a place (physical or online).
Зайди на этот сайт, чтобы узнать больше.
Go to this website to learn more.
Here, 'зайду' suggests a quick stop at a location to accomplish something briefly.