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Curiosity.

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Old Client Area

Category: OSINT

image of challenge

Our sponsor NS TechValley recently changed their billing system and moved the billing/client area to a new domain/sub-domain. Can you fnd the old billing area domain/sub-domain?

Here I just need to list the subdomains or find a domain link on the site’s page. I did a passive recon with crt.sh . I found this..

Image of crt.sh

On visiting clients.nstechvalley.com, it was redirected to the new subdomain. The new page contained the billing area. So the flag

flag: BDSEC{clients.nstechvalley.com}