One-click IP reputation, proxy quality and browser leak checks

Compare risk providers, DNS, WebRTC and streaming checks to identify network issues.

Supports HTTP / HTTPS / SOCKS5 · Also accepts host:port:username:password Credentials are used only for this test

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Risk scores

IPQSFraud & proxy risk ScamalyticsFraud risk score AbuseIPDBAbuse reports IP2LocationProxy identification

Service availability

TikTokRegional availability YouTubePremium page Prime VideoRegion detection RedditAccess restrictions ChatGPTRegion & VPN restrictions

Local environment checks

See what a website can read from this browser. The proxy entered above is not used.

International endpoint

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Domestic endpoint

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The details below refer to the exit seen by this site: Not tested

The overview and risk summary load automatically. Valid risk results for the same IP are reused for 10 minutes to reduce quota usage.

Field notes & system information

OS and browser details are reported values. The fingerprint uses this site's Canvas SHA-256, calculated locally. DNS shows resolver exits observed by our authoritative node and their countries. Anonymizer refers to provider VPN/Tor flags. Blacklist status uses explicit blacklist fields, not a zero report count. Untested does not mean safe.

Environment comparison

Network and environment comparison is not yet complete.

Environment checks

Only selected checks run. Choose network and fingerprint checks as needed; precise location requires separate permission.

The leak-check preset includes web exit, DNS, WebRTC, TLS, QUIC, IPv6 capability, JavaScript and privacy signals. It runs after you click Start, without requesting camera or precise location. Reports are generated locally without AI. Different exits do not necessarily mean leakage.

Sources & privacy

Local fingerprint and extension results are not uploaded or stored. The overview queries ipwho.is for the exit seen by this site; WHOIS also queries the official registry. DNS country lookup sends resolver IPs to ipwho.is. DNS sessions remain in memory for 5 minutes; SYN metadata for up to 15 seconds. WebRTC contacts Google STUN. Deep filtering requests public Google/Meta resources without running their scripts; those providers can still see the requesting IP. Exits may differ between checks, and missing data is inconclusive. The current node does not support IPv6 testing.

Using proxy & browser diagnostics

12CE Proxy Lens combines proxy quality and current-browser diagnostics. Enter a proxy to test its HTTP, HTTPS or SOCKS5 exit. Local environment checksshows this browser's connection to the site, which may use a different IP.

Which checks are available?

Proxy tests include IPQS, Scamalytics, AbuseIPDB and IP2Location risk data, plus TikTok, YouTube Premium, Prime Video, Reddit and ChatGPT access checks. Browser diagnostics include DNS exits, WebRTC, Canvas, WebGL, fonts, ClientRects, TLS, HTTP/2, QUIC and TCP. Availability depends on browser, node and upstream support.

Does a low score guarantee a safe IP?

No. Providers use different data and standards. A low score does not guarantee access, and a high IP2Location score may reflect proxy identification. Not listed means only that this source did not flag the IP. Failed or missing lookups are not low-risk results.

Do different DNS or WebRTC addresses prove a leak?

Not necessarily. Split routing, public DNS, Anycast and different address families can produce differences. DNS shows resolver exits querying our authoritative node; WebRTC shows browser candidates. Compare them with your intended configuration. Our node does not test IPv6; that says nothing about your own network's IPv6 support.

Does availability guarantee playback?

Access checks reflect this request and page features only, not account eligibility, subscription rights or playback. Challenges, regional policies, upstream restrictions and timeouts may affect results.

Where is test data sent?

Proxy details are submitted to our server to establish test connections; never put credentials in links. Overview providers receive the queried IP. DNS, WebRTC and exit comparisons contact their respective nodes. Local fingerprint and extension results are not uploaded or stored. Precise location requires separate permission. See Sources & privacy for details.