IP information Browser environment Claude AI risk ChatGPT risk IP ownership API

IP ownership lookup

Look up network registration and organization ownership for an IP.

IP address

Privacy check summary

Organization
Registry

IP address
ASN
CIDR range
Registered date

IP123 — one-click IP purity check

A professional, easy-to-use IP purity checking platform.
Supporting cross-border commerce, streaming, AI models and web scraping.

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IP Address Lookup

Instantly check any IPv4 or IPv6 address — get geolocation, ISP, proxy/VPN detection, and a unique ROLA IP Trust Score.

Look Up IP

IP WHOIS Lookup

Look up IP ownership, ASN, CIDR network range, RIR registry, and abuse contacts via RDAP.

Check WHOIS

Free Proxy List

Verified free HTTP and SOCKS proxies updated every 5 minutes — filter and export.

View Free Proxies

Proxy Checker

Test proxy status, speed, anonymity level, and location. Supports HTTP, SOCKS4, SOCKS5.

Check Proxies

Proxy Speed Test

Benchmark proxy latency, TTFB and download speed against Google, Cloudflare and Amazon.

Test Speed

Proxy Anonymity Checker

Test Elite, Anonymous, Transparent levels via 6 HTTP headers and a 0-100 score.

Check Anonymity

IP Blacklist Checker

Check if an IP is listed on 100+ DNSBL databases including Spamhaus, SORBS, SpamCop and Barracuda.

Check Blacklist

IPv4 & IPv6 Checker

Check IPv4 and IPv6 connectivity separately and see whether your connection is dual-stack.

Run test again

Bandwidth Calculator

Convert proxy GB to requests or estimate the bandwidth your workload needs.

Calculate your proxy bandwidth

SOCKS5 Proxy Checker

Check SOCKS5 proxy TCP connectivity, authentication, target access, exit IP, location and IP type.

Start SOCKS5 Check