ChinaUptime & downtime
2
Days tracked
31
Checks run
100%
Downtime
2
Down days
Other ports on this IP
39.102.209.121 is answering on 19 ports right now.
Ports like this one rarely travel alone. We hold 24 of them on 39.102.209.121 and have run 51,329 checks against them since May 15, 2026. When an address turns up on public lists across this many ports, each port is published as its own entry, so each one gets its own record here.
Best responding ports
Best on this IP is 39.102.209.121:80 at 15.2% across 3,826 checks
| Port | Uptime | Answered | Status |
|---|---|---|---|
| 80 | 15.2% | 582 / 3,826 | In the live pool |
| 9098 | 11.4% | 416 / 3,643 | In the live pool |
| 8889 | 11.0% | 231 / 2,092 | In the live pool |
| 10002 | 10.5% | 386 / 3,668 | In the live pool |
| 9080 | 10.5% | 400 / 3,823 | In the live pool |
| 50000 | 9.5% | 325 / 3,426 | In the live pool |
| 8089 | 9.4% | 314 / 3,347 | In the live pool |
| 8080 | 8.7% | 273 / 3,141 | In the live pool |
| 8008 | 8.6% | 269 / 3,140 | In the live pool |
| 5000 | 8.5% | 69 / 809 | In the live pool |
| 3128 | 8.5% | 266 / 3,134 | In the live pool |
| 3129 | 8.3% | 270 / 3,244 | In the live pool |
How this one compares
31 attempts. Not one connection.
Being published on a proxy list is a claim that an address works. It is not a test, and nobody in that chain is obliged to have tried it. We tried 31 times, which is why the answer on this page is a flat no rather than a maybe.
0%
of 31 checks answered
Pool median 15.2%. 39.102.209.121:9090 sits below it, which is ordinary for a public proxy.
31
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and unreachable look identical if you stop listening early.
1
days in our records, never once answering
It is not in the lifespan figures at all: those cover the 195,315 endpoints that worked at least once before they stopped.
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 195,315 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 4,642 proxies answering right now.
Where this address sits
Right now our free pool holds 137 other free proxies on Alibaba, and 540 in China. 39.102.209.121:9090 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
Hangzhou Alibaba Advertising Co.,Ltd. is the 15th 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 3,857 addresses on AS37963, which is 0.65% of every address in the database and a meaningful pocket of the database. That makes it the 15th largest source of free proxies of every network we have ever seen. 138 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 now4%
- Answered before53%
- Never answered43%
- 1LimitedNetwork-ASAS213790227,266
- 2Amazon.com, Inc.AS1650928,926
- 3Cloudflare, Inc.AS1333522,186
- 4SECURED SERVERS LLCAS2045419,475
- 5Cloudflare, Inc.AS20924214,141
- 6Alibaba (US) Technology Co., Ltd.AS4510211,710
- 7GloboTech CommunicationsAS3666611,542
- 8ChinanetAS41348,416
6 networks between
15Hangzhou Alibaba Advertising Co.,Ltd.AS379633,857
How to use this proxy
Route a request through 39.102.209.121:9090 over HTTP. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x http://39.102.209.121:9090 \
https://api.ipify.org?format=json
Not a terminal person? Pick your device and we walk you through it, nothing assumed.
Continuous monitoring
How HProxy checks 39.102.209.121:9090
39.102.209.121:9090 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 9090: 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 failure here was measured, not assumed
Each check opens a real connection to 39.102.209.121:9090 and gives it up to 90 seconds to answer. Slow is not the same as unreachable, and plenty of working proxies take half a minute to reply. Nothing about this record is inherited from the list that published the address. 31 times HProxy tried, and 31 times the connection did not complete inside that budget, which is why the answer on this page is a flat no rather than a maybe. The handshake is attempted across HTTP, HTTPS, SOCKS4 and SOCKS5, which is how we know it spoke HTTP.
31 checks, zero connections
Not one of those 31 attempts reached a working proxy. The address stays in the database with that result attached, because "we tried 31 times and it never answered" is a far more useful answer than silence for anyone who found 39.102.209.121 somewhere and wants to know what it is.
It is being re-tested continuously
39.102.209.121:9090 is in the live rotation, so it is re-tested continuously rather than on a daily cycle. If it stops answering it is marked down immediately, and if it stays down for 3 days it moves into the public proxy database with its full record intact. Nothing is deleted at any point.
This endpoint
The record
Everything HProxy holds on 39.102.209.121:9090, and nothing it does not.
- First seen
- August 18, 2026
- Last checked
- August 19, 2026
- Next check due
- continuously
- Checks run
- 31
- Times it answered
- 0
- Spoke
- HTTP
0%
never answered across 31 attempts
Questions about 39.102.209.121:9090
Is 39.102.209.121:9090 a working proxy right now?
Yes. 39.102.209.121:9090 answered HProxy's automated check 14 h ago and is in the live free proxy pool as we publish this page. It is re-tested every few minutes, so open this page again for its current state rather than trusting a copy of it.
What kind of proxy is 39.102.209.121?
It speaks HTTP. The port is 9090. Point your client at 39.102.209.121:9090 over http to route a request through it.
Where is 39.102.209.121 located?
Traffic through it exits from Beijing, China, on Hangzhou Alibaba Advertising Co.,Ltd. (AS37963). That is where the destination site will think your request came from.
How reliable has 39.102.209.121:9090 been?
Across 2 days of tracking it answered 0% of our checks. The chart on this page shows every day we have recorded for it, including the days it was down.
Is it safe to use 39.102.209.121:9090?
Treat it the way you would any public proxy: it is operated by someone we have no relationship with, it is shared with strangers, and anything you send unencrypted over it can be read. Fine for a quick geo check or a scrape of public data, never for logins, payments or anything private.
How many free proxies are on Alibaba?
137 other free proxies are live on Alibaba (AS37963) in our pool right now, alongside 39.102.209.121:9090. 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 China?
Yes, 540 free proxies are exiting from China in our pool right now, answering in 3588ms 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
Free proxies fail. This is what that looks like.
39.102.209.121:9090 answers 0% of the time, and that is ordinary for a public proxy. Nothing here is a service anybody sells you, which is why the numbers swing and why the list turns over constantly.
Other live free proxies
View all →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.