minor false positive: IDNs

[roycewilliams]

Looks like IDN domains / hosts may be detected accidentally. For example, these appear in a run against 'gci.com', but are totally unrelated:

SUB xn--gci.com 72.167.105.180 AS26496 GoDaddy.com, LLC Phoenix, Arizona, US
SUB mail.xn--gci.com 72.167.105.180 AS26496 GoDaddy.com, LLC Phoenix, Arizona, US
SUB webdisk.xn--gci.com 72.167.105.180 AS26496 GoDaddy.com, LLC Phoenix, Arizona, US

[cyclone-github]

Adding a sanity check for punycode domains that return when querying IDN certs will fix this.

[cyclone-github]

Fixed in testing branch.
https://github.com/cyclone-github/ipscope/tree/testing

[roycewilliams]

Confirmed addressed for my sample case, so assumed solid. Thanks!

[cyclone-github]

Great, thanks for the feedback!