Your essential toolkit for working online — IP intelligence, privacy checks, and security verification, all free.
Start with Environment Readiness before logging into critical accounts, or after switching VPN/proxy or browser profile.
One-click full check — IP, WebRTC, DNS, bot & fingerprint. Best before new VPN/proxy or seller login.
IP, geolocation, ISP, quality score, VPN/proxy, DNSBL.
Local IPs exposed via WebRTC STUN — VPN leak vector.
Canvas, WebGL, screen, hardware ID + UA parser.
Latency to global CDNs and marketplace endpoints.
Webdriver, headless, plugins, viewport signals.
Compare GPS coordinates with IP geolocation.
Probe DNS paths via Cloudflare & Google DoH.
A, AAAA, MX, TXT, CNAME for any domain.
Format, disposable, role-based, MX records.
Certificate expiry, issuer, chain verification.
Registrar, registration & expiry, nameservers.
30+ currencies with live or offline rates.
ToolCheck is a free toolkit for anyone who works online — verify your IP and location, test for VPN/WebRTC leaks, scan browser fingerprints, check DNS and SSL, and more, all in the browser with no signup. Most checks run client-side; a few use third-party APIs noted on each page. Cross-border sellers, ad operators, and multi-account users often rely on these tools before logging into marketplace, advertising, or payment platforms, but the same checks apply whenever network trust and privacy matter.
Results are informational only. IP intelligence may be inaccurate; always follow marketplace and ad platform policies.