Is 80.151.57.81:8080 a proxy? Yes, it was.
80.151.57.81:8080 was a public proxy in the HProxy free proxy pool, exiting from Germany on Internet service provider operations. Across 404 checks it answered 63% of the time, and it has since gone dark (last answered July 6, 2026), so it is not a usable proxy right now.
across all 404 checks
GermanyUptime & downtime
7
Days tracked
168
Checks run
31%
Downtime
4
Down days
How this one compares
It was one of the good ones, for 4 days.
Every free proxy list quotes an uptime figure. Almost none of them tell you what a normal one looks like, so here is ours: across the 3,760 proxies answering right now, the middle of the pack answers 16.4% of the checks we send it.
63%
of 404 checks answered
Pool median 16.4%. 80.151.57.81:8080 is in the top quarter.
404
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and dead look identical if you stop listening early.
4
days from first sighting to last answer
Of the 192,781 free proxies we have watched stop working, half were gone within 28 days of us first seeing them.
July 2, 2026
First listed by our sources
Published as a working proxy by 48 of the public lists HProxy tracks. Being listed is a claim, not a test.
July 6, 2026
Stopped answering
It answered our checks for 4 days before it went quiet.
July 9, 2026
Moved to the permanent record
It left the live pool here. Nothing is deleted: the address keeps this page and stays in the re-check rotation.
August 11, 2026
Most recent re-test
HProxy has opened 404 real connections to this endpoint in total. The sweep reaches every address in the database roughly once every 24 hours.
What normal looks like
Every number above is measured against these two.
A percentage on a proxy list means nothing without the shape of the thing it came from. These are the two distributions the rest of this page compares against, drawn from HProxy's own checks rather than from anybody's marketing page.
How long one lasts
Days from the first time we saw an address to the last time it answered, across 192,781 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 3,760 proxies answering right now.
Continuous monitoring
How HProxy checks 80.151.57.81:8080
HProxy has checked 80.151.57.81:8080 404 times and it answered 254 of those. Every one of those was a real connection attempt, never a lookup.
48 public sources published it
80.151.57.81 appears in 48 of the public proxy sources HProxy tracks. Lists copy from each other constantly, so an address showing up in many of them says a lot about how widely it was republished and very little about whether it ever worked.
Port 8080: HTTP, alternate
Port 8080 is the most common proxy port on the internet. It stands in for port 80, and unlike port 80 any program can open it without administrator rights. That single detail is why so much ends up here, the deliberate and the accidental alike.
Every check is a real connection
HProxy does not read this address off somebody else's list and pass it on. Each check opens a real connection to 80.151.57.81:8080 and gives it up to 90 seconds to answer. Slow is not the same as dead, and plenty of working proxies take half a minute to reply. Anything that does not answer in that budget counts as a failure and is recorded as one, which is why the percentage on this page moves rather than sitting at a marketing number. The handshake is attempted across HTTP, HTTPS, SOCKS4 and SOCKS5, so a proxy is never missed because we guessed the wrong protocol.
404 checks, 254 answered
That is 63% of the time, measured since July 2, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
We are still watching for it to come back
Being archived does not stop the testing. 80.151.57.81:8080 answered before, so it is exactly the kind of address that can return, and the sweep works through the whole database and reaches every address roughly once every 24 hours. Its last check was on August 11, 2026, so the next one is due within a day of that. The moment it answers again it is promoted straight back into the live free proxy list, automatically, with no manual step.
This endpoint
The record
Everything HProxy holds on 80.151.57.81:8080, and nothing it does not.
- First seen
- July 2, 2026
- Last checked
- August 11, 2026
- Next check due
- within 24 hours
- Checks run
- 404
- Times it answered
- 254
- Stopped answering
- July 6, 2026
63%
answered 254 of 404 checks
Live free proxies right now
View all →Where this address sits
Right now our free pool holds no other free proxies on Internet service provider operations, and 261 in Germany. 80.151.57.81:8080 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
Internet service provider operations is the 157th largest source of free proxies we have ever measured.
Open proxies cluster rather than spreading evenly across the internet. Hosting providers and cloud platforms run enormous numbers of near-identical servers, so a handful of networks end up carrying a disproportionate share of every public proxy list, including ours. HProxy tracks 236 addresses on AS3320, which is 0.04% of every address in the database and a small corner of the database. That makes it the 157th largest source of free proxies of every network we have ever seen. None of them are answering at the moment, though every one stays in the re-check rotation in case that changes.
- Answered before6%
- Never answered94%
- 1LimitedNetwork-ASAS213790227,266
- 2Amazon.com, Inc.AS1650926,351
- 3Cloudflare, Inc.AS1333522,185
- 4SECURED SERVERS LLCAS2045419,475
- 5Cloudflare, Inc.AS20924214,136
- 6Alibaba (US) Technology Co., Ltd.AS4510211,657
- 7GloboTech CommunicationsAS3666611,542
- 8ChinanetAS41348,367
148 networks between
157Internet service provider operationsAS3320236
Questions about 80.151.57.81:8080
Is 80.151.57.81:8080 a working proxy?
No, not any more. It was a working public proxy in HProxy's free pool and has since gone dark, last answering on July 6, 2026. We still re-test it periodically in case it returns.
Was 80.151.57.81 ever actually a proxy?
Yes. We ran 404 checks against it and it answered 254 of them, about 63% of the time, over 4 days on our list.
What is the hostname for 80.151.57.81?
Its reverse DNS record is p50973951.dip0.t-ipconnect.de. That is what the address itself publishes about who operates it, which is often more telling than the network name: hosting providers name their machines by region and instance type, and a residential line usually carries its ISP's own pattern.
Where was 80.151.57.81 hosted?
Bad Laasphe, North Rhine-Westphalia, Germany, Internet service provider operations (AS3320). It is a residential or ISP address rather than a datacenter one.
Why keep a page for an address that no longer works?
Because "was this address ever a proxy, and when" is a real question. If you are looking at this IP in a firewall log or an abuse report, the dates and the check counts here are the answer. HProxy's public proxy IP list keeps every address it has ever tracked and carries on re-testing them, so deleting this record would throw all of that away.
How many free proxies are on Internet service provider operations?
None other than 80.151.57.81:8080 at the moment. AS3320 (Internet service provider operations) has no other free proxies live in our pool right now, though that changes as we re-verify.
Are there other free proxies in Germany?
Yes, 261 free proxies are exiting from Germany in our pool right now, answering in 3993ms at the median. If this address is not usable, that list is the place to look for a working one.
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About this list & IP removal
Every proxy here is aggregated from publicly available sources. We do not scan or collect these IP addresses ourselves: we verify entries that are already public (live status, latency, uptime) and store nothing else about the devices behind them. The list is provided as-is, with no warranty, for lawful use only, on the basis of our legitimate interest in a free, transparent proxy directory (Art. 6 (1) (f) GDPR). Never route passwords or sensitive data through a public proxy. If an IP address is yours and you'd like it removed, email legal@hproxy.com and we'll take it down (Art. 21 GDPR). Full details on the report abuse page.