✏️ Privacy Policy
Last updated: 2026-10-22
This policy explains what ip-check.leeguoo.com ("this site"), an IP purity / network-risk self-check tool, processes and how.
In short
- No sign-up, no tracking cookies, no ads, and no third-party tracking scripts such as Google Analytics.
- Saved check records never contain a full IP and are deleted after 30 days.
- We do not sell any information.
Information we process
- Your egress IP: when you open the page, the site classifies it from the ASN, organization and approximate location provided by the Cloudflare edge, and looks up its owner with Team Cymru (DNS-over-HTTPS). With
?ip=it processes the IP you entered and also asks ipapi.is / ip-api.com for reputation data. - Checks in your browser: the page asks ipify.org for your IPv4/IPv6 exits (ipify sees your IP), and reads any address WebRTC exposes and your browser timezone. IPs found this way are sent to this site to look up their owner and are not kept.
- Rate-limit counters: a per-IP (IPv6: per /64) count of today's requests, kept in Cloudflare KV and expiring after 2 days.
- Anonymous counts: events such as page opens and share clicks record only the event name, page language and country, never the IP. Cloudflare Web Analytics, which uses no cookies, counts visits.
- CDN security cookies: traffic passes through Alibaba Cloud ESA, which sets two 1-hour security cookies (
acw_tc,cdn_sec_tc) against attacks, not for tracking. The site itself sets no cookies. - API-key usage: when you use an API key from account.leeguoo.com, its daily request count is recorded for quota, not request contents.
Check records and share links
Local Thermo reports: a redacted JSON file you choose is parsed only in this page's memory. It is not uploaded, persisted or included in saved network checks or share images. Clear it at any time; closing or refreshing the page clears it too. Do not select account configuration or credentials files.
- When a check scores under 100, or when you press the share button, the site saves a record and shows a report ID, used to look into problems you report and to make the share link.
- A record holds the score, each check's conclusion, the timezone, the exit's country and network, and the browser and OS name (e.g. "Chrome 130 · macOS"). Any IP in it, including exits and addresses WebRTC exposed, is kept only as its first and last part (e.g. 104.•••.5); no full IP and no full User-Agent is stored.
- Anyone with the share link
/r/<id>can open it. - Records are deleted automatically after 30 days. To have one deleted sooner, email the report ID to the address below.
Result cache
A check result is cached per IP for up to about an hour to avoid repeat calls to upstream sources, then expires.
Third parties
This site is hosted on Cloudflare behind Alibaba Cloud ESA and uses ipify, Team Cymru and ipapi.is / ip-api.com. Each provider's own privacy policy applies to the data it processes.
Contact
Questions, or requests to delete a check record or API-key data: leeguooooo@gmail.com. Updates to this policy are dated at the top.