Check my IP address with headers
See your public IPs, request headers, and connection details on a single refresh-friendly page.
Live snapshot
Connection report
IP address
IPv6 address
IPv6 address
🇺🇸 United States
Headers
Request headers
8 headers
| Header | Value |
|---|---|
| accept | */* |
| accept-encoding | gzip, br, zstd, deflate |
| cache-control | max-age=259200 |
| connection | close |
| host | nossl.sh |
| user-agent | Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) |
| via | 1.1 squid-proxy-5b5d847c96-788gb (squid/6.13) |
| x-forwarded-for | 216.73.216.63 |
Prove what the network sees
The status banner shows whether the request arrived over HTTP or HTTPS, and the header table reveals any proxies or VPN extensions in play.
- Copy IPv4/IPv6 plus ports for ticket attachments.
- Sorted headers make it easy to spot injected values.
- Geo data helps confirm if traffic exits where you expect.
Ready for troubleshooting handoffs
Before filing a support ticket, generate the share link so teammates can review the exact snapshot you captured.
- Reload after sign-in attempts to see if the captive portal released you.
- Use /api/request-info for the same data in JSON.
Does this page show IPv6 too?
Yes. When your network provides IPv6, the page fetches v6.nossl.sh and displays it alongside IPv4.
Can I automate the check?
Fetch http://nossl.sh/api/request-info for structured JSON that includes IPs, headers, and geo when available.
Quick steps to trigger captive portals
Apple captive portal check
Open the official Apple CNA page to force the captive assistant on iOS and macOS devices.
Open Apple captive portalAndroid captive portal check
Use the Android connectivity check URL that devices call before presenting the portal dialog.
Open Android captive portal