This site is created to help developers quickly detect unpleasant cyrillic symbols on the given URL.
The algorithm works as follows:
You can try checking URLS using browser address bar: http://latincheck.lifeline.su?url=google.com or just typing in the URL on the Home page.
The service has a simple API request for those who do not like GUI. Detect cyrillic symbols just using Validate request. It returns a JSON object with occurrences line by line.