OnionFind blocks websites that contain child sexual abuse material. You can use this to filter abuse material from your own search indexes. Onion addresses are masked by creating an MD5 sum of the onion domain.
For example, if the onion is abcdefghijklmnop.onion, the resulting hash would be c50b9578b6357a561909ff29331ad7ad.
To calculate the MD5 checksum from an onion address, run the following command:
echo -n "abcdefghijklmnop.onion" | md5sum
Or using Python3:
import hashlib
hashlib.md5("abcdefghijklmnop.onion".encode('utf-8')).hexdigest()
The blocklist hashlist is available here:
https://onionfind.com/blacklist/banned.txt
This blacklist is maintained to protect users from harmful content. The MD5 hashing ensures that actual onion addresses are not exposed while still allowing effective filtering.
If you operate a search engine or directory service, we encourage you to implement this blacklist to help create a safer environment for all users.