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This question already has an answer here:

For example if I send an email from my home IP address, people can see my location of where I am when I sent the email. If I used a VPN, and changed the location, people will think my device was in a different place than it actually was but in an email can give away that it was my actual device that sent the email?

edit: let's say I create an email and send an email, or create a website and post on the website, besides my IP address, what else gives away the device/location I am posting/writing from?

I'm sorry, I'm not very well versed in this technical aspect of communication so I apologize if I'm asking questions are unrelated or that don't make sense.

Question:

Let's say I create an email and send an email, or create a website and post on the website, besides my IP address, what else gives away the device/location I am posting/writing from? So someone said that posting on a website and sending an email are very different things, what is different about them in terms of finding out who send/created a blog or email?

I am asking about tracking a specific device and user rather than asking about finding out what kind of device is being used.

Basically the situation is this:

Someone (Person A) created a blog and an email using fake credentials and a VPN. Person A said defamatory things and impersonated another person on a blog. Person B is now suing person A and is subpoenaing the blog site as well as Person A. However even though Person A is used a VPN, is there anything besides the IP address that could be used to identify person A and/or the device Person A used.

marked as duplicate by Steffen Ullrich, tlng05, forest, Xiong Chiamiov, iainpb Feb 13 '18 at 11:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • Why do you think that your home or device IP is attached to the email? – schroeder Feb 11 '18 at 19:57
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  • @schroeder I have no idea, I'm sorry if I'm assuming wrong things. I guess a better question is, let's say I create an email and send an email, or create a website and post on the website, besides my IP address, what else gives away the device/location I am posting/writing from? – user81864 Feb 11 '18 at 19:59
  • @schroeder, because sometimes it is. When I send an email, the first "Received" header contains not only my home IP address, but the name of the machine on my home network that I sent it from. – Mark Feb 11 '18 at 20:01
  • @Mark How can I prevent this from happening and what kind of email service do you use? Is there any way I can find out which emails do this and which do not? – user81864 Feb 11 '18 at 20:01
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If you're using a browser, there are techniques available to statistically identify/fingerprint you via your browser settings (e.g. browser program, language, plugins, time zone, platform, cookie policies etc.) in an attempt to track you. See https://panopticlick.eff.org/.

  • is there any website you know that detail how to protect yourself from being identified/fingerprinted via browser settings – user81864 Feb 11 '18 at 22:31
  • @user81864 The only current way to avoid that is to use Tor Browser with its default settings. Every other browser is fingerprintable (even if Panopticlick says otherwise, since it's not very accurate, unlike, say, AmIUnique). – forest Feb 12 '18 at 2:27

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