First CH Apps / IP & Request Info
This shows the request our server actually received from you. Handy for confirming a VPN or proxy switch, and for telling support where and with which browser you are connecting from. It is display only: neither your IP nor your headers are recorded (not even in access logs).
Your public IP address: 216.73.217.78 IP version: IPv4 Country / region (code): US Region (state / prefecture): Ohio City: Columbus Time zone: America/New_York AS number (network): 16509 Network operator: Anthropic, PBC Cloudflare location used: CMH HTTP version: HTTP/2 TLS version: TLSv1.3 Server receive time (UTC): 2026-09-27T12:31:45Z user-agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) accept-language: — accept: */* accept-encoding: gzip, br referer: — sec-ch-ua: — sec-ch-ua-platform: — sec-ch-ua-mobile: — sec-fetch-mode: — dnt: —
| IP version | IPv4 |
|---|---|
| Country / region (code) | US |
| Region (state / prefecture) | Ohio |
| City | Columbus |
| Postal code | 43215 |
| Time zone | America/New_York |
| AS number (network) | AS16509 |
| Network operator | Anthropic, PBC |
Location is Cloudflare's estimate from your IP and can differ from where you actually are (mobile, VPN and corporate networks especially). No GPS is involved.
| HTTP version | HTTP/2 |
|---|---|
| TLS version | TLSv1.3 |
| Cipher suite | AEAD-AES256-GCM-SHA384 |
| Cloudflare location used | CMH |
| Server receive time (UTC) | 2026-09-27T12:31:45Z |
| user-agent | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) |
|---|---|
| accept-language | — |
| accept | */* |
| accept-encoding | gzip, br |
| referer | — |
| sec-ch-ua | — |
| sec-ch-ua-platform | — |
| sec-ch-ua-mobile | — |
| sec-fetch-mode | — |
| dnt | — |
| cf-connecting-ip | 216.73.217.78 |
|---|---|
| cf-ipcountry | US |
| cf-ray | a41a86f3adcdb36e |
| cf-visitor | {"scheme":"https"} |
| connection | Keep-Alive |
| host | apps.first-ch.com |
| x-forwarded-proto | https |
| x-real-ip | 216.73.217.78 |
Credential headers such as Cookie and Authorization are not shown, even back to you, to avoid leaking them through a screenshot.
Sent: only the request that opened this page (your IP address and headers). There is no form, no upload, and our server makes no outbound calls.
Stored: nothing. Your IP, headers and estimated location exist in memory only while the request is being handled and are gone once the response is sent. Nothing is written to a database (no KV, no D1) and no IP or header is recorded in access logs or analytics (we do not write a single console line).
Returned: what you sent, back to your browser only. The response is Cache-Control: no-store, so it is not kept in shared caches either.
Note: sharing this page's URL shows the other person their own details, not yours.
Send Accept: text/plain and you get just your IP address on one line (?format=txt does the same).
curl -H 'Accept: text/plain' https://apps.first-ch.com/myip/
GET or POST /myip/api/info returns the same details as JSON (?format=json does the same). No auth, nothing stored.