50pts
You know where to look, but not what you're looking for.
Navigating to /robots.txt gives us the following:
User-agent: *
Allow: /
Disallow: /ctf-management-console
Disallow: /too-easy
Going to /too-easy shows the following:
Too Easy?
SESH{w4s_th1s_t00_345y}
However, this is a fake flag and we need to go to /w4s_th1s_t00_345y to find the real flag:
Maybe Not So Easy...
SESH{th15_is_a_l1ttl3_h4rd3r}
Flag: SESH{th15_is_a_l1ttl3_h4rd3r}