Detection method
Daily domain names registration lists are downloaded and analyzed with a homemade tool, which detect some keywords and indicators. All results are checked and hand-validated before submission.
Automatic integration (AdGuard / PiHole / …)
You can automaticaly download data in formatted text files here.
There are 2 types of files:
red.flag.domains.txt (all domains from all TLDs)
red.flag.domains_tld.txt (all domains for this TLD)
Linux code snippets
How to download the full file, with wget or curl:
wget https://dl.red.flag.domains/red.flag.domains.txt
curl -O https://dl.red.flag.domains/red.flag.domains.txt
How to remove the header (disclaimer and last update):
sed -i '1,2d' red.flag.domains.txt