Servers that have faulty or misconfigured DNS may be recognized as threats and temporarily placed in this category, as a bad DNS may prevent the system from recognizing known malevolent networks or may cause system load.
If this is a robot or automatic crawler, your robot has either overloaded system resources in the past or has attempted to crawl areas of the site that are protected with <META> tags.
For an explanation of what constitutes violations, please read the Floodgap Terms of Service (this URL is accessible to all users, including blacklisted addresses).