I'm wanting to upload it to my Weebly site but can't quite figure it out. I have the index.html working in my browser.
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I don't know Weebly, but don't they have FTP-access...?
If yes, simply use a FTP program; I'd recommend the free open-source FileZilla.
1) Log on to your domain using the ftp credentials
2) Create a folder for your game
If, on the other hand, you DON'T have FTP access, then you have a problem. Then I'd recommend you to buy your own domain at a web hotel that gives you FTP-access.
Weebly doesn't support FPT. Webs seems to not have it either. Is there any other simple ways- even a public link to the game to share with people?
Correct me if I'm wrong guys, but couldn't he just upload it to the scirra arcade then give people the link to play it....?
True that, but he asked about his own web, which to me suggests he want more control with the layout around the game... But you're completely right - submitting it to Sierra Arcade is, of course, a very valid option