Is 52.59.51.29:9443 a proxy? Yes, it was.
52.59.51.29:9443 was a public proxy in the HProxy free proxy pool, exiting from Germany on Amazon.com, Inc.. Across 649 checks it answered 7% of the time, and it has since gone dark (last answered June 25, 2026), so it is not a usable proxy right now.
across all 649 checks
GermanyUptime & downtime
10
Days tracked
240
Checks run
33.3%
Downtime
9
Down days
How this one compares
It worked sometimes, for 7 days, and then it stopped.
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 10,301 proxies answering right now, the middle of the pack answers 13.8% of the checks we send it.
7%
of 649 checks answered
Pool median 13.8%. 52.59.51.29:9443 sits below it, which is ordinary for a public proxy.
649
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and dead look identical if you stop listening early.
7
days from first sighting to last answer
Of the 193,304 free proxies we have watched stop working, half were gone within 28 days of us first seeing them.
June 18, 2026
First listed by our sources
Published as a working proxy by 1 of the public lists HProxy tracks. Being listed is a claim, not a test.
June 25, 2026
Stopped answering
It answered our checks for 7 days before it went quiet.
June 28, 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 13, 2026
Most recent re-test
HProxy has opened 649 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 193,304 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 10,301 proxies answering right now.
Continuous monitoring
How HProxy checks 52.59.51.29:9443
HProxy has checked 52.59.51.29:9443 649 times and it answered 43 of those. Every one of those was a real connection attempt, never a lookup.
One public source published it
52.59.51.29 reached HProxy through a single public proxy source. Being published on a list is a claim that an address works. It is not a test, and nobody on that chain is obliged to have tried it.
Port 9443: Registered port range
This port sits in the middle range, where any ordinary program can listen without special permission. The number itself carries no reserved meaning, which tells you somebody picked it on purpose instead of accepting a default.
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 52.59.51.29:9443 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.
649 checks, 43 answered
That is 7% of the time, measured since June 18, 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. 52.59.51.29:9443 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 13, 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 52.59.51.29:9443, and nothing it does not.
- First seen
- June 18, 2026
- Last checked
- August 13, 2026
- Next check due
- within 24 hours
- Checks run
- 649
- Times it answered
- 43
- Stopped answering
- June 25, 2026
7%
answered 43 of 649 checks
Live free proxies right now
View all →
Where this address sits
Right now our free pool holds 6,417 other free proxies on Amazon, and 306 in Germany. 52.59.51.29:9443 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
Amazon.com, Inc. is the 2nd 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 26,991 addresses on AS16509, which is 4.6% of every address in the database and a substantial share of everything HProxy tracks. That makes it the 2nd largest source of free proxies of every network we have ever seen. 6,417 of them are answering right now, so if this particular address is not usable, the network is a reasonable place to look for one that is.
- Answering now24%
- Answered before55%
- Never answered21%
- 1LimitedNetwork-ASAS213790227,266
- 2Amazon.com, Inc.AS1650926,917
- 3Cloudflare, Inc.AS1333522,185
- 4SECURED SERVERS LLCAS2045419,475
- 5Cloudflare, Inc.AS20924214,140
- 6Alibaba (US) Technology Co., Ltd.AS4510211,676
- 7GloboTech CommunicationsAS3666611,542
- 8ChinanetAS41348,372
Questions about 52.59.51.29:9443
Is 52.59.51.29:9443 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 June 25, 2026. We still re-test it periodically in case it returns.
Was 52.59.51.29 ever actually a proxy?
Yes. We ran 649 checks against it and it answered 43 of them, about 7% of the time, over 7 days on our list.
What is the hostname for 52.59.51.29?
Its reverse DNS record is ec2-52-59-51-29.eu-central-1.compute.amazonaws.com. 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 52.59.51.29 hosted?
Frankfurt am Main, Hesse, Germany, Amazon.com, Inc. (AS16509). It is a datacenter address, not a home connection.
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 Amazon?
6,417 other free proxies are live on Amazon (AS16509) in our pool right now, alongside 52.59.51.29:9443. Networks that host one open proxy usually host several, which is why the whole AS is worth browsing rather than just this address.
Are there other free proxies in Germany?
Yes, 306 free proxies are exiting from Germany in our pool right now, answering in 209ms at the median. If this address is not usable, that list is the place to look for a working one.
Where to go next
Upgrade to the paid network
Need pools that stay clean?
Free IPs are shared and rotate out fast, so success rates swing. The paid network gives you dedicated-clean pools that hold up under load.
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.