Solutions for Capture the flag challenges
open source code of this page and check all the files.
picoCTF{tru3_d3t3ct1ve_0r_ju5t_lucky?832b0699}.
Check the cookies of the admin.
picoCTF{th3_c0nsp1r4cy_l1v3s_6edb3f5f}
the solution on the title is refering to Robots Exclusion Protocol (robots.txt). for more information https://www.robotstxt.org/robotstxt.html.
Check the html file. The code in javascript using the substring(start,end).
picoCTF{no_clients_plz_1a3c89}