Add a counter to your site and see how many poeple are visiting and more info about them. Google Analytics is the best one, I'm using it.
2 Character Country Codes
ISO 3166 Country Codes2 Character Alphabetical Country Codes
Free Website Monitoring Service
This is a free service that check your website every 30 minutes and send you an email if the website is down.
Check website loading speed
With this online tool you can easily check your website loading speed from different computers around the world. You can see how your website preform in each country.