Security Check
Comprehensive analysis of your internet connection security
What does this tool check?
- VPN/Proxy/Tor detection - identifies if you are using anonymizers
- DNS Leak Test - checks for DNS request leaks
- WebRTC Leak Test - checks for real IP leaks through WebRTC
- IP address analysis - location and ISP information
- Overall security level - comprehensive security assessment
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Internet Connection Security Check
Comprehensive security check of your internet connection: VPN/Proxy detection, DNS leak test, WebRTC leak check. Find your real IP address, check for DNS and WebRTC leaks, assess overall security level.
What We Check:
- VPN/Proxy/Tor detection - check if you use anonymizers
- DNS Leak Test - verify DNS request leaks
- WebRTC Leak - check real IP leaks via WebRTC
- ISP and location information
How to check privacy and anonymity
- Turn on your VPN — if you use one. If not, the test reveals your real IP and ISP.
- Open Security Check — it detects VPN/proxy/Tor against a database of known ranges.
- Check DNS leak — if DNS queries hit your real ISP instead of the VPN, you are deanonymized.
- Check WebRTC leak — the browser can leak the real IP via WebRTC even with a VPN active. Good VPNs block this.
Example use cases
VPN provider audit
Paid for a VPN — confirm it really hides your IP, has no DNS leak and blocks WebRTC.
Privacy on public Wi-Fi
At a cafe or airport: the tool shows the real network IP and hints whether traffic might be tampered with.
Bypass assessment
If a site refuses to open through your VPN, its range is probably on a blocklist. The test shows whether your IP flags as VPN.
Ad-tracking resistance
See how visible your real IP is to ad networks and judge how effective your anonymization choice really is.
Common mistakes & fixes
- VPN on, but your real IP shows
- Most likely a WebRTC leak. In Chrome/Firefox install a WebRTC Leak Prevent extension or use a VPN with KillSwitch.
- DNS leak on a paid VPN
- Check the client: enable "Use VPN DNS". Inspect /etc/resolv.conf on Linux or IPv6 DNS on Windows.
- Site blocks you when using VPN
- Netflix, banks and gov services often block data centers. Pick a VPN server with "residential IP" or disable the VPN for that site.
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Frequently Asked Questions
Security Check analyses: VPN status, DNS/WebRTC leaks, proxy detection, IP-vs-location mismatch, DNSBL blacklist status, TLS connection quality.