The user registration for Blitzortung.org is made via a link on the firmware website. Should this not work for any reason, please send an email to email@example.com with the subject "registration". The registration will be assigned to your email address. Please note that your sender email address is used as the registration address. In the event of processing, you will receive an email. Please also check your spam folder.
If you have forgotten your password, send an email to firstname.lastname@example.org with the subject "Password". The password will be sent to you when you are registered with your email address.
Have fun with the lightning location.