IP Leak Test — VPN, Proxy & Reputation Check

Browser IP leak tests expose WebRTC, DNS resolver, and torrent client behavior in the user's session. Our reputation-based IP leak test answers a complementary question — what public threat and anonymization signals does the internet associate with this address right now.

vpn true or proxy true with high fraudScore suggests the address is known anonymizer or high-risk infrastructure — relevant when verifying VPN egress pools or detecting proxy fraud rings.

fraudScore synthesizes DNSBL hits, VPN, proxy, hosting, and botnet heuristics into zero-to-one-hundred scale with riskLevel low, medium, or high. detections array lists category rows — DNS Blacklists, VPN, Proxy, Hosting, Botnet, Malware — with status strings for ticket readability.

listedOn summarizes zone names when DNSBL listings appear — cross-reference with spamhaus-lookup for delisting granularity.

Enter hostnames when logs show domains instead of numeric IPs. resolvedFrom links original query to scanned IPv4. CDN domains resolve to edge pools whose reputation may differ from origin servers.

When testing your VPN egress, paste the IPv4 shown by what-is-my-ip style checks into query directly.

Commercial geolocation databases tag ranges used by VPN providers and public proxies. Flags are heuristics — journalists and researchers legitimately use VPNs. Combine with context: VPN login from datacenter IP differs from residential IP with multiple DNSBL hits.

Clean VPN flag does not prove no browser leak occurred — run dedicated WebRTC leak tests in the browser separately.

Both pages call action reputation with identical JSON shape. ip-reputation-checker uses IP reputation SEO vocabulary; ip-leak-test targets operators searching IP leak test terminology from privacy and fraud workflows.

API: GET /ip-tools/api/extended?action=reputation&query=8.8.8.8

Pair with privacy-score-checker scratchpad for documenting privacy program notes, security-headers-checker on sites under review, and cookie-scanner on URLs setting tracking cookies.

packet-loss-test helps validate connectivity to privacy tool endpoints separate from reputation signals.

Fraud teams score checkout and signup IPs for VPN/proxy combined with DNSBL listings before shipping high-value orders. Export JSON with fraudScore and detections for risk engine enrichment.

Rate limits apply — cache results briefly rather than hammering the same address every page view.

Check only IPs you own, manage, or are authorized to investigate. Reputation queries use public DNS and geolocation APIs.

Do not use results for unauthorized surveillance or discriminatory profiling.