News for hackers. Stuff that matters.

A comment on MailChimp blacklists your IP if you open the browser's dev tools. Parent comment

Re:MailChimp blacklists your IP if you open the browser's de... by pupppet on Monday March 20, 2023 @02:21PM (#35236179)
Open the inspector, reload the page and you'll see:

"Request Blocked

We blocked your request because the IP address you’re using looks suspicious. This issue will usually resolve itself after a short period of time, and you can try your request again. You can also try using a different IP address to see if that resolves the issue.

If you need additional help, you can try one of these support options.

Reference Number: #####"

[ Parent | on HN ]
Re:MailChimp blacklists your IP if you open the browser's de... by supriyo-biswas on Monday March 20, 2023 @02:26PM (#35236262)
Thank you for the description. I assume they're using a bot management script which is set to block requests if devtools is open. For such websites, opening devtools in a separate window should work.

Some websites will try to throw you into a loop of debugger statements if they detect devtools being opened, which is harder to work around, but it doesn't seem to be the case here.

[ Parent | on HN ]
Re:MailChimp blacklists your IP if you open the browser's de... by Workaccount2 on Monday March 20, 2023 @02:36PM (#35236439)
Is there an extension or workaround that prevents sites from knowing you opened devtools (without breaking everything else on the site)?
[ Parent | on HN ]
Re:MailChimp blacklists your IP if you open the browser's de... by nadaviv on Monday March 20, 2023 @02:42PM (#35236515)
It might be harder to detect if you open it as a separate window instead of docking it to the bottom/side of the window.
[ Parent | on HN ]
Re:MailChimp blacklists your IP if you open the browser's de... by Boltgolt on Monday March 20, 2023 @02:50PM (#35236643)
Disabling javascript breakpoints usually does the trick. Devtools detection is often done by having a `debugger;` statement somewhere and timing of it triggered
[ Parent | on HN ]
Re:MailChimp blacklists your IP if you open the browser's de... by runlevel1 on Monday March 20, 2023 @03:06PM (#35236917)
A lot of them dynamically generate new anonymous functions to get around this. Last I looked (~1 year ago I think) neither Chrome nor Firefox supported disabling the keyword completely. Do you know if that's changed?
[ Parent | on HN ]
Re:MailChimp blacklists your IP if you open the browser's de... by tenplusfive on Monday March 20, 2023 @03:19PM (#35237140)
On Firefox its in the Debugger Tab of the DevTools. On the top right you can deactivate all breakpoints (which includes the debugger statement).

There is a similar button on chrome, but I am not sure if that also applies to the debugger statement.

[ Parent | on HN ]