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Editorial Team
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Asked: 2026-05-22T16:46:28+00:00

Any ideas if bit.ly is doing anything other than simple Location: header to redirect

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Any ideas if bit.ly is doing anything other than simple Location: header to redirect users?

Facebook is able to parse info about final destination when using bit.ly link, but not my project http://guubo.com/aaaaab links that use simple Location: header.

I checked bit.ly headers, they look ordinary.

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1 Answer

  1. Editorial Team

    I looked into it further. Try the following from the command line

    curl -D headers.txt http://bit.ly/4m1AUx

    You can then look at the contents of headers.txt, which will look like

    HTTP/1.1 301 Moved
Server: nginx
Date: Sat, 28 May 2011 13:18:21 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Set-Cookie: _bit=4de0f61d-001f7-008b9-d8ac8fa8;domain=.bit.ly;expires=Thu Nov 24 08:18:21 2011;path=/; HttpOnly
Cache-control: private; max-age=90
Location: http://slashdot.org/
MIME-Version: 1.0
Content-Length: 112

    So, no, they’re doing a normal 301 redirect. You can do the same inspection in your PHP code using PHP’s curl bindings to get the headers to figure out the real site if you want.

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