Is 43.99.100.108:3128 a proxy? Yes.
43.99.100.108:3128 is a public HTTP proxy in the HProxy free proxy list, exiting from Hong Kong SAR China. It holds a strong 92% uptime, and was last checked 23 h ago.
uptime
Hong Kong SAR ChinaOther ports on this IP
43.99.100.108 is answering on 1 ports right now.
Ports like this one rarely travel alone. We hold 2 of them on 43.99.100.108 and have run 3,909 checks against them since June 30, 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 43.99.100.108:3128 at 92.3% across 3,869 checks
How this one compares
Reliable enough to sit in the top quarter of everything we are watching.
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 4,525 proxies answering right now, the middle of the pack answers 15.6% of the checks we send it.
92%
of 3,869 checks answered
Pool median 15.6%. 43.99.100.108:3128 is in the top quarter.
3,869
real connection attempts
Each one opens a socket and waits up to 90 seconds. Slow and unreachable look identical if you stop listening early.
55
days tracked, still in the live pool
Of the 194,413 free proxies we have watched stop working, half were gone within 28 days of us first seeing them.
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 194,413 endpoints that stopped working.
Middle halfMedianFull range
How quickly one answers
Response time on the last successful check, across the 4,525 proxies answering right now.
Where this address sits
Right now our free pool holds 164 other free proxies on Alibaba, and 1,511 in Hong Kong SAR China. 43.99.100.108:3128 sits inside that set, so if it is not usable the pages below are where its closest alternatives are.
Alibaba (US) Technology Co., Ltd. is the 6th 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 11,730 addresses on AS45102, which is 2.0% of every address in the database and a substantial share of everything HProxy tracks. That makes it the 6th largest source of free proxies of every network we have ever seen. 165 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 now1%
- Answered before60%
- Never answered39%
- 1LimitedNetwork-ASAS213790227,266
- 2Amazon.com, Inc.AS1650930,907
- 3Cloudflare, Inc.AS1333522,188
- 4SECURED SERVERS LLCAS2045419,475
- 5Cloudflare, Inc.AS20924214,142
- 6Alibaba (US) Technology Co., Ltd.AS4510211,730
- 7GloboTech CommunicationsAS3666611,542
- 8ChinanetAS41348,437
How to use this proxy
Route a request through 43.99.100.108:3128 over HTTP. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x http://43.99.100.108:3128 \
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 43.99.100.108:3128
43.99.100.108:3128 is in the live pool right now, and it stays there only for as long as it keeps answering.
Port 3128: Squid default
Port 3128 is the default for Squid, the most widely installed proxy software in the world. Most addresses published on 3128 are Squid servers that were meant to serve one office or one network and ended up reachable by everybody.
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 43.99.100.108:3128 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. 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, which is how we know it spoke HTTP.
3,869 checks, 3,572 answered
That is 92% of the time, measured since June 30, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
43.99.100.108:3128 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 43.99.100.108:3128, and nothing it does not.
- First seen
- June 30, 2026
- Last checked
- August 24, 2026
- Next check due
- continuously
- Checks run
- 3,869
- Times it answered
- 3,572
- Spoke
- HTTP
92%
answered 3,572 of 3,869 checks
Questions about 43.99.100.108:3128
Is 43.99.100.108:3128 a working proxy right now?
Yes. 43.99.100.108:3128 answered HProxy's automated check 23 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 43.99.100.108?
It speaks HTTP. The port is 3128. Point your client at 43.99.100.108:3128 over http to route a request through it.
Where is 43.99.100.108 located?
Traffic through it exits from Hong Kong, Hong Kong SAR China, on Alibaba (US) Technology Co., Ltd. (AS45102). That is where the destination site will think your request came from.
How reliable has 43.99.100.108:3128 been?
Across 56 days of tracking it answered 92% 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 43.99.100.108:3128?
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?
164 other free proxies are live on Alibaba (AS45102) in our pool right now, alongside 43.99.100.108:3128. 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 Hong Kong SAR China?
Yes, 1,511 free proxies are exiting from Hong Kong SAR China in our pool right now, answering in 997ms 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
This one is good, and it will still disappear.
43.99.100.108:3128 has answered 92% of our checks, which puts it well above most of what we track. It is still a public endpoint with nobody standing behind it: nobody agreed to serve you, no capacity is set aside for you, and there is no warning on the day it stops. Fine for a test, a bad foundation for anything that has to work tomorrow.
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.