# IP Reputation & Proxy Check

> Free IP reputation and proxy check: transparent 0-100 risk score with explained factors (datacenter ASN, Tor exit, DNSBL blacklists incl. Spamhaus where available, reverse DNS, WebRTC leak, timezone mismatch). Network diagnostics; heuristic, no accuracy guarantee. Chinese edition: "AI 账号与出海 IP 体检".

## Endpoints
- [Check your IP](https://ipok.fyi/): interactive report
- [Plain IP](https://ipok.fyi/ip): your IP as text
- [JSON](https://ipok.fyi/json): your IP report as JSON
- [API](https://ipok.fyi/api/check?ip=8.8.8.8): report for any IPv4/IPv6
- [ASN directory](https://ipok.fyi/asn): hosting/datacenter ASN profiles, e.g. https://ipok.fyi/asn/16509

## Data sources
- Visitor geo/ASN: Cloudflare request metadata
- Other IPs: iptoasn.com (PDDL) for ASN; IP geolocation by DB-IP (https://db-ip.com, CC BY 4.0; city IPv4 only, country for IPv6); IPinfo Lite optional fallback
- Hosting ASN list: github.com/brianhama/bad-asn-list (MIT)
- Tor exits: check.torproject.org/torbulkexitlist
- DNSBL: queried via Cloudflare DoH; Spamhaus refuses public-resolver queries, shown as "unavailable"

## Contact
- ayang.gdsz@gmail.com