Is 201.159.97.221:8081 a proxy? Yes.
201.159.97.221:8081 is a public HTTP proxy in the HProxy free proxy list, exiting from Mexico. It holds a spotty 11% uptime with a high 33348ms response time, and was last checked 6 min ago.
MexicoUptime & downtime
7
Days tracked
389
Checks run
87.9%
Downtime
7
Down days
Continuous monitoring
How HProxy checks 201.159.97.221:8081
201.159.97.221:8081 is in the live pool right now, and it stays there only for as long as it keeps answering. Here is exactly what HProxy does to it, and how often.
Port 8081: HTTP, alternate
Port 8081 is the conventional second HTTP alternate, used when 8080 is already in use on the same host.
Every check is a real connection
HProxy does not read this address off somebody else's list and pass it on. Each check opens an actual connection to 201.159.97.221:8081 and waits up to 4 seconds for the other end to complete a proxy handshake. 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.
2,261 checks, 249 answered
That is 11% of the time, measured since June 23, 2026. Every one of those results, successes and failures alike, is a connection HProxy opened itself.
It is being re-tested continuously
201.159.97.221:8081 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 201.159.97.221:8081, and nothing it does not.
- First seen
- June 23, 2026
- Last checked
- August 3, 2026
- Next check due
- continuously
- Checks run
- 2,261
- Times it answered
- 249
- Spoke
- HTTP
11%
answered 249 of 2,261 checks
How to use this proxy
Route a request through 201.159.97.221:8081 over HTTP. Free proxies are shared and rotate out fast, so test before you rely on it.
curl -x http://201.159.97.221:8081 \
https://api.ipify.org?format=json
Other live free proxies
View all →
Where this address sits
Right now our free pool holds 4 other free proxies on Administradora De, and 173 in Mexico. 201.159.97.221:8081 sits inside that set, so if it is not usable the pages below are where its closest alternatives are. At 33348ms it is slower than the 7729ms median for Mexico proxies.
What HProxy holds on Administradora de Servicios de Internet Sandur S.A. de C.V.
Open proxies are not spread evenly across the internet. They cluster, because one misconfigured template, one cheap hosting reseller or one leaked image tends to produce hundreds of identical machines on the same network. HProxy tracks 5 addresses on AS28539, which is 0.00% of every address in the database and a small corner of the database. 15 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 now100%
Questions about 201.159.97.221:8081
Is 201.159.97.221:8081 a working proxy right now?
Yes. 201.159.97.221:8081 answered HProxy's automated check 6 min 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 201.159.97.221?
It speaks HTTP, and our checks grade it transparent. The port is 8081. Point your client at 201.159.97.221:8081 over http to route a request through it.
Where is 201.159.97.221 located?
Traffic through it exits from Monterrey, Mexico, on Administradora de Servicios de Internet Sandur S.A. de C.V. (AS28539). That is where the destination site will think your request came from.
How fast is 201.159.97.221:8081?
It answered in 33348ms on the last check. Free public proxies are shared, so real-world speed varies with how many other people are using it at the same moment.
How reliable has 201.159.97.221:8081 been?
Across 42 days of tracking it answered 11% 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 201.159.97.221:8081?
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 Administradora De?
4 other free proxies are live on Administradora De (AS28539) in our pool right now, alongside 201.159.97.221:8081. 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 Mexico?
Yes, 173 free proxies are exiting from Mexico in our pool right now, answering in 7729ms 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.