403 Forbidden in Google map api v3

Question

As it is stated that Api key is not needed in Google maps v3 but usinghttp://maps.google.com/maps/api/js?sensor=false I was only able to use maps for 3 days then I started getting 403 Forbidden error. I only send about 300-400 requests per day so that shouldnt have been a problem.

Then, I decided to get the api key and used it, it also worked fine for 3 days; after that it generated same 403 forbidden error.

Can anyone please guide me if I am missing something or getting business plan for google api is the only way?

Thanks

Answer 1

You do not need a key, although it is recommended (amongst other things, it will allow you to see your usage in the API console).

Do you have a link to your site so we can see if there's potentially another reason the 403's are occurring?