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Found a bug, spotted a mistake in the reference, or want a tool that is not here yet? We would like to hear it.
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Corrections
Accuracy matters for a networking reference. If a CIDR prefix or port entry looks wrong, tell us the page and what you expected, and we will fix it and note it in the changelog.
Feature requests
The tool list grows based on what people actually reach for. If there is a calculator or reference you keep wishing existed, send it over. Practical, specific requests are the most likely to ship.