How does a website know if i've visited it before? (and how to bypass that)

Asked Jan 19 '23 at 18:52

Active Jan 20 '23 at 08:59

Viewed 447 times

For example: https://pdfcandy.com/pdf-ocr.html has a limit on how many times I can use a feature per hour, but if I use an incognito tab I can easily bypass that.

But with https://ichigoreader.com/upload (don't judge I'm trying to translate a horror manga I like) Even going as far as creating a new identity on Tor, it KNOWS it's me and doesn't let me go beyond the limit.

Does anyone have any ideas?

edited Jan 20 '23 at 08:59

schroeder

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asked Jan 19 '23 at 18:52

Kamisama

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Questions on how to bypass security measures or other limits for your own gain are off-topic here. If you want to know what techniques there are in general for tracking/identifying users - there are already questions about this here. – Steffen Ullrich Jan 19 '23 at 19:28
I don't know how often TOR switches exit nodes and if it can be done manually. If you're on the same one, you're using the same IP address. – Artem S. Tashkinov Jan 19 '23 at 21:19
Does this answer your question? How to fight browser fingerprinting? – mentallurg Jan 19 '23 at 22:07
If I were the site maintainer, I wouldn't even try to recognize you. There would be no need. I would classify and recognize the manga. – LSerni Jan 19 '23 at 23:38
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You tagged this with the easiest answer: cookies. – schroeder Jan 20 '23 at 08:59
There are numerous ways a site could do this. We can't list them all. And we are not going to inspect that site to get specific. – schroeder Jan 20 '23 at 09:01

How does a website know if i've visited it before? (and how to bypass that)

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