UPDATED SEPTEMBER 5, 2026

Tools with a light footprint.

No account, application cookies or third-party analytics are required.

Your connection address

Your source IP and request headers reach the site when you connect. We use the address to display your public IP and enforce temporary request limits in memory. IP responses and personalized pages are marked private and no-store. Rate-limit entries expire after two minutes of inactivity.

Local calculations

Subnet calculation, IP conversion, CIDR membership, range summarization and transfer-time estimates run in your browser. Input values for these tools are not sent to an API, saved in browser storage or placed in page URLs.

DNS queries

DNS and reverse-DNS queries are sent from our VPS to the public resolver you choose. Comparison sends the queried name to Cloudflare and Google. We do not add your individual source IP to these upstream requests. Google queries include a zero-length EDNS client subnet to avoid adding a client-network hint.

Infrastructure and logs

Cloudflare provides proxy, DNS and security services. OVHcloud hosts the application. These providers process traffic under their own policies. Application access logging is disabled by default. Operational or security diagnostics can still contain connection information.

Advertising and links

Ad placements currently contain labeled house promotions. No paid advertising network or tracking script is active. Related-site links are promotional links. Advertising integrations require this notice and any necessary consent controls to be updated before activation.

Cloudflare privacy · Google Public DNS privacy · OVHcloud privacy.