Searching for inurl:index.php?id= is a common technique used to find websites that use to fetch content from a database. While this is a standard way many websites function, it is frequently used by developers and security researchers to identify potential vulnerabilities. Why people look for these URLs

http://example.com/commy/index.php?id=123

This feature replaces the vulnerable and dated index.php?id=123 structure with human-readable, secure URLs. How it works

: This is the homepage or a functional script file written in PHP.

http://example.com/index.php?id=45'

This is the most unusual and typo-looking part. In all likelihood, this is a common misspelling or a shorthand used in hacking circles. It is almost certainly a deviation of (as in .com domain) or comm (as in community or commerce).

If inurl:commy index.php?id interests you, here are similar search strings that security professionals use:

If you find inurl:commy index.php?id= returning live sites, it suggests: