Recover Lost Domain Access

I need help tracking down the registrar that currently holds a legacy domain of mine and then regaining full control of the account. All I still have is the domain itself and an old contact-email address that used to receive messages from the registrar; nothing lands in that inbox anymore, but I can still log in to it.

Your task is to identify where the domain is registered (WHOIS, DNS look-ups, historical records, registrar pings—whatever works), guide me through any verification or ownership-proof steps, and ultimately restore control of the domain’s login so I can manage renewals, DNS and email routing again. If recovery through the existing registrar proves impossible, I’ll need a clean transfer to a registrar I specify.

Deliverables
• Registrar name and active account-login route (or documented proof that the domain has been transferred).
• Working credentials or completed transfer confirmation.
• A short, plain-English summary of every step taken so I can repeat the process in the future if needed.

When you reply, show past work where you successfully hunted down and recovered domains or performed registrar transfers under similar circumstances. That evidence will help me decide quickly.