A tool for checking the risk level of domain names.
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README.md

IDNCheck

IDNcheck performs safety checks on international domain names. This might be useful if you want to see how likely a given domain is to be used for nefarious purposes such as phishing. It returns the unicode restriction level passed by a string, as described in Unicode Technical Standard #39, Unicode Security Mechanisms (see References).

Note: On first run, it will automatically download a file if it doesn't exist: http://www.unicode.org/Public/UNIDATA/Scripts.txt

How to use

Typical usage might look something like this:

>>> import idncheck
>>> idncheck.idncheck("hello")
1
>>> idncheck.idncheck("φilosoφia")
42
>>> idncheck.idncheck("φilosoφia", 3) # FIXME
True
>>> idncheck.idncheck("paypal")
1
>>> idncheck.idncheck("paypаl")
4
>>> idncheck.idncheck("раура1")
4

or

#!/usr/bin/env python

import idncheck

idncheck.idencheck("φilosoφia", 3): # FIXME
    print("I see what you're doing there")

References

This tool serves as an implementation of the Restriction-Level detection described in Unicode Technical Standard #39, Unicode Security Mechanisms:

Additional use cases and details are available in these blog posts:

TODO

  • Create a web service on a Gandi Python Simple Hosting instance