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False positives

See original GitHub issue

False positives for any username

Here’s an example output for a “random” username:

https://www.capfriendly.com/users/amffdsfjvidsvck
https://www.codechef.com/users/amffdsfjvidsvck
https://www.ebay.com/usr/amffdsfjvidsvck
https://www.gpsies.com/mapUser.do?username=amffdsfjvidsvck
https://www.twitter.com/amffdsfjvidsvck
Total Websites Username Detected On : 5

GPSies moved its website. CapFriendly is especially weird. It seems to generate random details for nonexistent users. The other ones say that the user doesn’t exist.

False positives for usernames with `.`

https://ask.fm/fghfgn.tiojydf
https://profil.chatujme.cz/fghfgn.tiojydf
https://coderwall.com/fghfgn.tiojydf
https://my.flightradar24.com/fghfgn.tiojydf
https://www.house-mixes.com/profile/fghfgn.tiojydf
https://www.ifttt.com/p/fghfgn.tiojydf
http://fghfgn.tiojydf.insanejournal.com/profile
https://tamtam.chat/fghfgn.tiojydf
https://www.taringa.net/fghfgn.tiojydf
https://t.me/fghfgn.tiojydf
https://trashbox.ru/users/fghfgn.tiojydf
https://easyen.ru/index/8-0-fghfgn.tiojydf
https://elwo.ru/index/8-0-fghfgn.tiojydf
http://ingvarr.net.ru/index/8-0-fghfgn.tiojydf
https://www.metacritic.com/user/fghfgn.tiojydf
http://pedsovet.su/index/8-0-fghfgn.tiojydf
https://radioskot.ru/index/8-0-fghfgn.tiojydf

False positives for usernames with `_`

https://fghfgn_tiojydf.en.aptoide.com/

Hostnames can’t contain underscores, by the way. Aptoide redirects to the homepage.

False positives for usernames with `-`

https://my.flightradar24.com/fghfgn-tiojydf
https://t.me/fghfgn-tiojydf
https://www.opennet.ru/~fghfgn-tiojydf

Others

Yandex sometimes redirects to a captcha, originating a false positive.

Issue Analytics

State:
Created 4 years ago
Reactions:8
Comments:31 (20 by maintainers)

Top GitHub Comments

2reactions

enodrcommented, Aug 31, 2020

I can confirm with latest version false positives for: https://www.clozemaster.com/ (uses method status_code but non existing accounts 302 redirects to /dashboard) https://4pda.ru - displays an error for non existing account but sherlock gives me false positive

1reaction

roopeshvscommented, Aug 7, 2020

@sdushantha Found a GET API from Polarsteps that would suit us better.

https://api.polarsteps.com/users/byusername/USERNAME

Also, the previously claimed username is a mistake, it didn’t exist. 😦

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