Is 104.129.192.156:12749 a proxy? Yes, it was.
104.129.192.156:12749 was a public proxy in the HProxy free proxy pool, exiting from United States on ZSCALER, INC.. Across 1,436 checks it answered 53% of the time, and it has since gone dark (last answered August 5, 2026), so it is not a usable proxy right now.
across all 1,436 checks
United StatesUptime & downtime
4
Days tracked
221
Checks run
93.2%
Downtime
4
Down days
How this one compares
It was one of the good ones, for 19 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 3,836 proxies answering right now, the middle of the pack answers 15.7% of the checks we send it.
53%
of 1,436 checks answered
Pool median 15.7%. 104.129.192.156:12749 is in the top quarter.
1,436
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and dead look identical if you stop listening early.
19
days from first sighting to last answer
Of the 192,425 free proxies we have watched stop working, half were gone within 28 days of us first seeing them.
July 17, 2026
First listed by our sources
Published as a working proxy by 36 of the public lists HProxy tracks. Being listed is a claim, not a test.
August 5, 2026
Stopped answering
It answered our checks for 19 days before it went quiet.
August 8, 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 10, 2026
Most recent re-test
HProxy has opened 1,436 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 192,425 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 3,836 proxies answering right now.
Continuous monitoring
How HProxy checks 104.129.192.156:12749
104.129.192.156:12749 has been through 1,436 checks on HProxy's list, answering 759 of them. Few addresses in the database carry a record this long.
36 public sources published it
104.129.192.156 appears in 36 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 12749: 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 104.129.192.156:12749 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.
1,436 checks, 759 answered
That is 53% of the time, measured since July 17, 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. 104.129.192.156:12749 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 10, 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 104.129.192.156:12749, and nothing it does not.
- First seen
- July 17, 2026
- Last checked
- August 10, 2026
- Next check due
- within 24 hours
- Checks run
- 1,436
- Times it answered
- 759
- Stopped answering
- August 5, 2026
53%
answered 759 of 1,436 checks
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Where this address sits
Right now our free pool holds no other free proxies on Zscaler, and 979 in United States. 104.129.192.156:12749 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
ZSCALER, INC. is the 71st 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 667 addresses on AS22616, which is 0.11% of every address in the database and a meaningful pocket of the database. That makes it the 71st 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 before50%
- Never answered50%
- 1LimitedNetwork-ASAS213790227,266
- 2Amazon.com, Inc.AS1650925,739
- 3Cloudflare, Inc.AS1333522,185
- 4SECURED SERVERS LLCAS2045419,475
- 5Cloudflare, Inc.AS20924214,136
- 6Alibaba (US) Technology Co., Ltd.AS4510211,648
- 7GloboTech CommunicationsAS3666611,542
- 8ChinanetAS41348,355
62 networks between
71ZSCALER, INC.AS22616667
Questions about 104.129.192.156:12749
Is 104.129.192.156:12749 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 August 5, 2026. We still re-test it periodically in case it returns.
Was 104.129.192.156 ever actually a proxy?
Yes. We ran 1,436 checks against it and it answered 759 of them, about 53% of the time, over 19 days on our list.
Where was 104.129.192.156 hosted?
San Jose, California, United States, ZSCALER, INC. (AS22616). 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 Zscaler?
None other than 104.129.192.156:12749 at the moment. AS22616 (Zscaler) has no other free proxies live in our pool right now, though that changes as we re-verify.
Are there other free proxies in United States?
Yes, 979 free proxies are exiting from United States in our pool right now, answering in 1445ms 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.