AVRXT Safeguard is a modified aggregation of HaGeZi DNS Blocklists.
Upstream: https://github.com/hagezi/dns-blocklists
Copyright: Gerd HaGeZi and contributors; consult preserved source headers.
Upstream license: GNU GPL version 3 (LICENSE).
AVRXT modifications: normalization, combination, overrides, build automation and output formats.
Full upstream inputs and notices are preserved in sources/.

Additional independently maintained source feeds:
NoCoin (Hosh and contributors), MIT: https://github.com/hoshsadiq/adblock-nocoin-list
Phishing URL Blocklist (Ming Di Leom and contributors), MIT: https://github.com/curbengh/phishing-filter
URLhaus filter (Ming Di Leom and contributors), MIT: https://github.com/curbengh/urlhaus-filter
Their complete MIT notices are preserved in licenses/; upstream source headers remain in sources/.