Effective date: April 26, 2026

The site does not collect any data from you directly. Every calculator runs client-side in your browser — IPs, CIDRs, MAC addresses, capture filters, and any other inputs you type are not transmitted to any server operated by neteng.tools. There is no backend, no analytics account, no logging of inputs.

The feedback form is the one exception. When you submit it, your input is sent to a small Cloudflare Worker hosted alongside the site, which forwards it to a private notification channel where the maintainer can read it. The text you typed and the optional email address are not stored in a database and are not used for anything other than reading and, where appropriate, replying. Cloudflare's own request logs (IP address, User-Agent, timestamp) are retained per Cloudflare's standard retention — see Cloudflare's privacy policy for details.

The site uses Google AdSense to serve ads on tool and reference pages. AdSense sets cookies for ad personalization and measurement.

Google, as a third-party vendor, uses cookies to serve ads. Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to this site and other sites on the Internet. Users may opt out of personalized advertising by visiting Google's Ads Settings or aboutads.info.

Policy and meta pages (this page, About, Terms) do not display ads.

The site is served from Cloudflare Pages. Cloudflare may collect basic request logs (IP address, user-agent, request path) for security and operational purposes. See Cloudflare's privacy policy for details.

The site loads fonts from Google Fonts. Google may log requests when fonts are fetched. See Google's privacy policy for details.

The site is not directed at children under 13.

This policy may be updated from time to time. The effective date at the top of the page will reflect the most recent change.

For privacy questions, use the feedback form.