What do people usually use to detect proxies?

[AK472010]

What do people usually use to detect proxies? Or which proxies are more accurate

 

[BestOfLife]

Maybe this: https://proxyscrape.com/online-proxy-checker

 

[711Proxy_]

Each IP checker uses a different IP database when checking your IP. This is why you may get different results on different websites. Unfortunately, many databases provide inaccurate IP information. Some of these IP checkers provide IP blacklist checking. For example, you can easily find your own IP address in the blacklist. In addition, blacklists retrieve information from various IP databases, which can lead to misunderstandings about specific proxy providers.

 

[proxygo]

What do people usually use to detect proxies? Or which proxies are more accurate

are you looking to detect a specific proxy type

 

[Ashk881]

What do people usually use to detect proxies? Or which proxies are more accurate

Do you mean proxy software or the IPS themselves?

Proxies are usually detected by 2 methods:

One is your proxy software itself leaking the fact that it's a proxy.

By default, most proxy servers out there send a X-Forwarded-To header to the server you're making the request to.
So imagine you bought a proxy ip from a provider who's proxy server is not configured to prevent this, and you try to access Instagram using this proxy. Instagram can know that you are using a proxy, because your request contains that header and they can easily check for that.

Another method is through analysing traffic from an IP address. Most proxy providers will not give you a fixed IP address, rather you get an IP from a pool of addresses which is shared among other users of the service when you are inactive.

So say you get the IP address a.b.c.d from a proxy provider. It doesn't leak anything, and you access instagram from your mac all well and good.

After 2 hours you disconnect from the proxy. Now this same address will be used by another user on windows, with a different TLS cipher, timezone and other such request fingerprints.

Instagram logs this information. And figures out that the same IP can't have such wildly different fingerprints and concludes it's a proxy.

Tho this method is complicated and to my knowledge, most sites don't use this method. Not even Instagram, atleast they don't block a page when trying to access though a proxy. This was just a hypothetical example.

 

[turelink]

I evaluate by my own projects, If works, keep using, if not change a proxy provider

 

[XxSNovaxX]

Scamalytics​

 

[phucxuanvinh]

My method is to use Google search; if many captchas appear, it means your proxy has been leaked. I usually do this because it's practical.

 

[Ozito]

It can also be detectable if ur proxy keeps changing geo location every 5 mins or so, I always try to look up for a +1day static ones and when I change it I always look up for the same city/povince and isp provider.
Also ur proxy can be detected if it leaks dns from another country or isp so u should rly look up for that. I hope more experienced ppl give their ideas here too so I can learn more other things of what can be detectable from a proxy.

 

[BartProxy]

https://www.ipqualityscore.com/

 

[Deep9889]

Services like Maxmind and IP2proxy.

 

[Magic Networks]

browserleaks.com

 

[Ned Zemlak]

Do you mean proxy software or the IPS themselves?

Proxies are usually detected by 2 methods:

One is your proxy software itself leaking the fact that it's a proxy.

By default, most proxy servers out there send a X-Forwarded-To header to the server you're making the request to.
So imagine you bought a proxy ip from a provider who's proxy server is not configured to prevent this, and you try to access Instagram using this proxy. Instagram can know that you are using a proxy, because your request contains that header and they can easily check for that.

Another method is through analysing traffic from an IP address. Most proxy providers will not give you a fixed IP address, rather you get an IP from a pool of addresses which is shared among other users of the service when you are inactive.

So say you get the IP address a.b.c.d from a proxy provider. It doesn't leak anything, and you access instagram from your mac all well and good.

After 2 hours you disconnect from the proxy. Now this same address will be used by another user on windows, with a different TLS cipher, timezone and other such request fingerprints.

Instagram logs this information. And figures out that the same IP can't have such wildly different fingerprints and concludes it's a proxy.

Tho this method is complicated and to my knowledge, most sites don't use this method. Not even Instagram, atleast they don't block a page when trying to access though a proxy. This was just a hypothetical example.

Here's the answer you're looking for

 

[ckurtuk]

Most US proxies are blacklisted.