methodology / Security & Infrastructure / #29

Spam / phishing blocklist presence

live factor #29 · Security & Infrastructure · scoring impl: implemented · weight 2%

What we measure

If your domain is on a blocklist, your emails go to spam and your site triggers warnings in Chrome and Safari. We check the major lists.

How to improve your score

Investigate why you're listed (compromised site, hosting on a bad-rep IP, etc.), fix the underlying issue, request delisting through each blocklist's appeal process.

Data source

Data source for this factor is not yet documented.

Scoring

Scoring formulas are versioned with the methodology. The current method (v1.1.0) maps raw measurements to pass, warn, fail. Factor weights determine how much each contributes to the composite — see the methodology index for the full table.

Version history

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