Free proxies for Dota 2 cannot carry a match, and Dota 2 does not need one. Valve already sends Dota 2 traffic through relays of its own, and says they lower ping "for every Dota customer". On 28 September 2026, 22 of the 425 working free SOCKS5 proxies on ordinary addresses in our list carried a UDP packet, about 1 in 20. Over TCP, the median round trip through them was 334 milliseconds. The Steam Subscriber Agreement forbids using "IP proxying or other methods to disguise the place of your residence".
This page covers what we measured and what Valve says. It ends with what a free proxy puts at risk.
Do free proxies work for Dota 2?
Not for matches. A game sends two kinds of traffic. The store, the news and your profile are web traffic over TCP. The play itself goes as UDP. Valve says so plainly: "It is the nature of game servers to receive unsolicited UDP (User Datagram Protocol) traffic from arbitrary IP addresses". Its list of the ports Steam needs includes "UDP remote port 27000-27250: Game traffic".
A proxy can only carry the kind of traffic it was built for. HTTP proxies and SOCKS4 carry TCP only. SOCKS5 is the one common kind with a mode for UDP, called UDP ASSOCIATE in RFC 1928. Our breakdown of HTTP vs SOCKS5 proxies explains the difference.
Valve already runs Dota 2 through its own relays
In a Dota 2 blog post of 6 March 2024, Valve explains how it stopped attacks on its game servers. "We accomplished this by creating proxies for game traffic, routing every single packet of data transmitted across the network through relays", it writes. A client now reaches the game server "through a relay that both authenticated it and proxied that traffic to the game server".
Valve calls this network the Steam Datagram Relay. It protects against DDoS attacks, and Valve says it also "increases connectivity and lowers ping for every Dota customer". Valve says it has "relays in 31 data centers with a capacity of over 5TBit".
So your match already travels through proxies, ones Valve runs for the job. A free proxy would sit in front of them and add one more stop. The Steam overlay shows your ping and the route Valve gives you, so you can see it for yourself.
We asked 425 free SOCKS5 proxies to carry UDP
On 28 September 2026 we ran the test from our server in the United States. It took every working SOCKS5 entry of our free proxy list whose address held fewer than 20 of them. That was 425 entries at 16:04 UTC, and 431 in a second run at 21:54 UTC. Each one got the same DNS question twice: once as a UDP packet, and once over TCP. The question is one small packet out and one back, so its time is a round trip, which is what a game measures as ping. This is the test from our page about free proxies for gaming. We never contacted the game or Valve.
- 22 of the 425 carried the UDP packet and brought the answer back, with a median round trip of 313 milliseconds. In the second run, 28 of 431 did, with a median of 355.
- 200 refused the UDP mode as not supported, 49 accepted it and sent nothing back, and 128 were dead or did not answer as SOCKS5.
- Over TCP, 273 carried the same question, with a median round trip of 334 milliseconds. Straight from our server, it took a median of 14. The second run gave a median of 230, against 4.7 straight from our server.
- Counting every entry of the list, our random samples of 27 September found 2 of 200 that carried UDP, and a median of 454 milliseconds over TCP.
A proxy adds a stop between you and the game server, so it cannot lower your ping. Every packet goes to the proxy first, and the answer takes the same detour back. Even the fastest free proxy took 33 milliseconds over TCP, against a median of 14 straight from our server, and 35 took more than a second.
What Valve says about proxies and accounts
The Steam Subscriber Agreement, last updated on 10 September 2026, has a sentence about proxies:
- Proxying. You will not use "IP proxying or other methods to disguise the place of your residence". The sentence names getting around "geographical restrictions on game content" and buying "at pricing not applicable to your geography", then adds "or for any other purpose". The next sentence reads: "If you do this, Valve may terminate your access to your Account".
- Anti-cheat. You may not "disable, circumvent, or otherwise interfere with" the software that prevents or reports cheats. On Steam, Dota 2 lists Valve Anti-Cheat.
- Your account. "You may not reveal, share or otherwise allow others to use your password or Account except as otherwise specifically authorized by Valve".
- Age. "You may not become a Subscriber if you are under the age of 13".
The Dota 2 blog adds the rules of the game itself:
- Ranked. Since April 2017, "players must register a unique phone number to their account in order to queue for Ranked matches". Low priority "now results in a duration-based ban from the Ranked queue".
- Smurfs. On 1 September 2023, Valve "permanently banned 90,000 smurf accounts" and traced "every single one of these smurf accounts back to its main account". A main account tied to a smurf faces punishments up to "permanent account bans".
- Regions. You pick your matchmaking regions inside the game. A 2022 update fixed "a bug with matchmaking region selection" in that part of the game.
This page gives no steps around a ban, a region or a regional price.
Your Steam account is worth protecting
A Steam account holds your games, your items and your wallet. A proxy is a server run by a stranger, in the middle of your traffic, and it adds no encryption of its own. On a clean HTTPS connection your password is encrypted in transit. A hostile proxy can still present a fake certificate and hope you click past the warning. In our tests of other websites on 27 September 2026, some free proxies presented certificates our client refused. A 2018 study of more than 107,000 listed open proxies found TLS man-in-the-middle attacks. Never sign in or pay through a free proxy. Our guide to whether free proxies are safe covers the rest.
Where a free proxy fits, and where it does not
| What you want to do | Free proxy? | Why |
|---|---|---|
| Play a match through it | No | About 1 in 20 free SOCKS5 proxies carried UDP. |
| Lower your ping | No | Valve already relays Dota 2 traffic. A free proxy adds a stop in front. |
| Change your matchmaking region | No | You choose regions inside the game. |
| Buy at another country's price | No | The Steam agreement forbids IP proxying for that. |
| Hide a smurf account | No | Valve traced 90,000 smurfs to their main accounts. |
| Log in to Steam | No | A hostile proxy can try to read your login. |
Where a free proxy costs you
Anything you want to last is the wrong job for a free proxy. Almost half of the free SOCKS5 proxies in our test refused the UDP mode outright. Those that worked and then stopped lasted a median 10 days, counting only addresses with fewer than 20 of them, without Amazon's networks or one June evening when our checker failed (measured 2026-09-28). For web tasks that have to keep running, such as checking your own site from another country, a residential proxy is the better tool. Its address belongs to a home connection, and it stays up while you work. Ours start at $0.44/GB, pay as you go, and purchased traffic has no scheduled expiry date. No proxy of any kind changes the Steam rules on proxying, accounts and cheats.
Test any proxy before you use it
A free proxy that worked ten minutes ago may already be gone. Two things decide whether it is usable: whether it is alive, and where it actually exits. Paste any candidate into our free proxy checker, with no signup. It makes a real connection through the proxy and reports the exit address, country, latency and anonymity grade. From the command line, the same check is one request to our free checker API.
# Tests one proxy from our server: alive or dead, protocols, anonymity, latency, country
curl "https://hproxy.com/api/proxy-check?proxy=203.0.113.7:1080"
A SOCKS5 label on a list tells you nothing about UDP, since only about 1 in 20 SOCKS5 proxies in our test carried it. The full method is in how to check if a proxy is working.
The plain answer
Free proxies for Dota 2 have no job in a match. Only about 1 in 20 working free SOCKS5 proxies carried a UDP packet in our test, 22 of 425 on ordinary addresses, and Valve already relays Dota 2 traffic through its own network to keep ping low. The Steam agreement forbids IP proxying to disguise where you live, and Valve traces smurf accounts to their main accounts. Never sign in through a free proxy. For web tasks that can fail, start with our free proxy list, and check anything you find elsewhere with the proxy checker.
How we measured
Both runs went from our server in the United States on 28 September 2026, at 16:04 and 21:54 UTC. Each took every working SOCKS5 entry of our free pool whose address held fewer than 20 of them, 425 and 431 entries. A third run at 16:09 UTC, five minutes after the first, gave 21 of 423. Each figure leaves out addresses that held 20 or more, and the figure over every entry stands next to it. Each proxy got a DNS question for example.com, sent to the public resolver 1.1.1.1. It went once as a UDP packet through UDP ASSOCIATE, with 5 seconds for the answer, and once over TCP through CONNECT, with 10 seconds for each step. The same questions went straight from our server five times per run as the reference. The figures over every entry come from two random samples of 100 working SOCKS5 entries of the whole pool. They ran on 27 September between 18:00 and 18:09 UTC, with the same questions. We never contacted the game or Valve. We read the Steam Subscriber Agreement, the Dota 2 store page and the Steam ports article from our server on 28 September 2026, in English. We read the Dota 2 blog posts through the public Steam news API. Steam Support asks for a sign-in before it shows its Dota 2 articles, so we quote none of them. The refused certificates come from our tests of other websites on 27 September. We store no proxy addresses from these tests, and every time is in UTC.
Sources
- Valve, Steam Subscriber Agreement, last updated 10 September 2026, read on 28 September 2026.
- Valve, Dota 2 blog: Between the Lanes: Denying Denial of Service, 6 March 2024, and Matchmaking Update, 20 April 2017, read on 28 September 2026.
- Valve, Dota 2 blog: Smurfing is Not Welcome in Dota, 1 September 2023, and the Dota 2 Update of 18 July 2022, read on 28 September 2026.
- Valve, Dota 2 on Steam, and Steam Support, Required Ports for Steam, read on 28 September 2026.
- IETF, RFC 1928: SOCKS Protocol Version 5, March 1996.
- Akshaya Mani, Tavish Vaidya, David Dworken and Micah Sherr, An Extensive Evaluation of the Internet's Open Proxies, arXiv 1806.10258, 27 June 2018.
- HProxy documentation: the proxy checker API, read 28 September 2026.
