The following list contains the 100 most malicious entities detected by the SpamKill network, ranked by their reputation score. This data is updated hourly.
Bots fill out web forms to plant links, spread scam messages, pollute lead pipelines, and probe sites for weaknesses. One operator can point a single script at thousands of sites at once, so even a small website's forms see automated traffic daily.
You can, but it rarely holds. Spam operations rotate through residential proxies and cloud servers, so the list above changes constantly — a static IP blocklist starts decaying the day you write it. Behavioral analysis catches a brand-new IP the first time it acts like a bot, which is why SpamKill never relies on IP reputation alone.
Modern spam campaigns route traffic through residential proxy networks — pools of ordinary home connections rented by the request. Each submission arrives from a different, clean-looking address, which is exactly the pattern this blacklist captures over time.
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