Well for one, we could make a standard query value that would say whether or not, the URL is evil. http://try-sql-in-your-browser.io/?evil=true http://try-sql-

Well for one, we could make a standard query value that would say whether or not, the URL is evil. http://try-sql-in-your-browser.io/?evil=true http://try-sql-in-your-browser.io/?evil=true It works well for IPv4.