Xfinity and Other ISPs Silently Block New Website Domains via Third-Party Blacklists
Site owners discover that ISPs like Xfinity use third-party domain-reputation blacklists (e.g. SURBL) to silently block newly launched websites at the gateway level, with no notification to the site owner. Multiple independent site owners confirm hitting the same block across unrelated domains, sometimes even for domains over a year old, making new product launches invisible to a subset of users without any warning.
Signal
Visibility
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Impact
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Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.