Clear it in 3 steps
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Start the environment
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Investigate the target
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Submit the flag
Web pages contain a lot of information that isn't visible on the surface. Looking at HTML source code, you can often find developer notes (comments). Check this page's source code to find the flag! Hint: Right-click in browser → "View Page Source" Or press F12 to open Developer Tools
Right-click on the page and select "View Page Source"
Look inside HTML comments `<!-- ... -->`
The flag is near the end of the source code