Open Door

This challenge is an open door; show us you know how to find the key.

URL: http://chal.tuctf.com:30002/

Recon

The flag can be found in web source:

<html>
        <head>
                <title>Hello!</title>
                <link href="beginning.css" rel="stylesheet" type="text/css">
        </head>
        <body>
        <h1 align=center>Welcome to the Beginning of Your Journey</h1>
        <hr>
        <p> In these next few websites you will find some developers who tried their best, but failed. Find what you can find, and may the points be ever in your favor.
        <br><br>
        <img src=https://bit.ly/2MO859u class=center>       
        <!--Laziness leads me to leave this here: TUCTF{f1r5t_fl46_345135t_fl46}-->
    </body>
</html>

Flag

TUCTF{f1r5t_fl46_345135t_fl46}