Transparent proxy
A proxy that passes your real IP address through and often intercepts traffic without you configuring it, common in networks, useless for anonymity.
You have almost certainly used one today without configuring anything. That is the defining property: a transparent proxy sits inline on the network path and intercepts traffic on its own, with no proxy settings entered anywhere on your machine. Corporate networks, school filters, ISPs, hotel Wi-Fi and mobile carriers all run them.
It is called transparent because it is transparent to YOU, not because it is invisible to the destination. The naming trips people up constantly. From the far end it is the least discreet arrangement possible: your real address is passed straight through in X-Forwarded-For or Via, so the site learns both where you are and that something relayed the request.
The purpose is control and cost rather than privacy. Caching popular content saves an ISP bandwidth. Filtering enforces a policy about what can be reached. Logging produces a record of who went where. None of those goals require hiding you, and two of them actively require not hiding you.
For anonymity work the value of understanding it is knowing how to spot it, because a transparent proxy will silently defeat the thing you are trying to do. If you route through a proxy and your own address still appears in the echoed headers, the entry is transparent regardless of how it was labelled on the list you found it on. 552 of the 4,023 free proxies alive in our pool graded transparent on 11 August 2026, so mislabelled entries are common rather than rare.
It also explains a support question we see often: someone tests a working proxy, sees their real address come back, and concludes the proxy is broken. The proxy is working correctly. A transparent proxy passes the real address through by design, which is why anonymity grade is measured against this as the zero baseline.
How HProxy handles it
Transparent entries are the reason a free list needs re-testing rather than trusting the label. A source can advertise anonymity and serve an inline cache that forwards your address on every request, and the only way to find out is to send a request and read what comes back.
Frequently asked questions
Am I behind a transparent proxy right now?
Possibly, and you would have no way of knowing from your own machine, since nothing was configured. On a corporate, school, hotel or carrier network it is common. The test is to load any page that echoes back the headers it received and look for Via or X-Forwarded-For carrying your address, which would not be present on a direct connection.
Why is it called transparent if it exposes my IP?
Because the name describes its transparency to YOU, not to the destination. It requires no configuration and gives no indication it exists, so it is invisible from your side. From the far end it is the least discreet arrangement possible, passing your real address straight through. The naming trips up almost everyone.
My proxy shows my real IP, is it broken?
Almost certainly not broken, just transparent. That is precisely what a transparent proxy does: it relays your traffic and forwards your address in the headers. If it was sold or listed as anonymous, it was mislabelled. Free lists carry a lot of these, 552 of the 4,023 live in our pool on 11 August 2026.
Is there any use for a transparent proxy?
Several, just not anonymity. They exist for caching popular content to save bandwidth, filtering what a network's users can reach, and logging traffic for security or compliance. Those are the operator's goals, and none of them require or want to hide the visitor.
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