Host your high scores on Webscript.

Check out this example:

https://www.webscript.io/examples/leaderboard

Webscript.io was apparently just released this morning. It looks pretty awesome. Basically, you write a script in Lua, put it on their server, and they give you a nice friendly URL to access the script. It could be very useful.

If you go the free route your script and data get wiped after 7 days. To have them host is indefinitely it's about $5 a month.

*edit: I posted this on my blog. http://blog.gageh.us/host-your-high-scores-on-webscript/