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Tips for IP checks
Local classification (private, loopback, CGNAT) works offline in the browser.
Geo and ASN come from a third-party HTTPS API and can be approximate.
Never use geo-IP alone for access control or fraud decisions.
Paste only addresses you are allowed to investigate.
IPv6 classification here is limited — focus on format and lookup fields.
À propos de IP checker
Classe d’adresse en local. Ville/ASN via une API IP publique si dispo.
Validate an IP and look up basic geo / network info.
Interroge un service public pour la valeur saisie (voir note de confidentialité).
Comment utiliser IP checker
Enter the query
Type the domain, IP, or value for IP checker.
Run the lookup
Wait for the public API response. Rate limits may fail the call.
Copy what you need
Paste fields into your ticket — not entire dumps you do not need.
Questions fréquentes
Is IP checker free?
Yes. It is free to use in the browser with no signup required.
What leaves the browser?
Classe d’adresse en local. Ville/ASN via une API IP publique si dispo.
Do I need to install anything?
No. IP checker is a web utility — open the page and start.
When should I use IP checker?
Validate an IP and look up basic geo / network info.