SetCronJob is now FastCron

I’ve renamed SetCronJob to FastCron. The new homepage is now https://www.fastcron.com/.

The default user agent has been changed to
Mozilla/5.0 (compatible; FastCron/1.0; https://www.fastcron.com/)

Emails will be sent from support@fastcron.com and alert@fastcron.com

The new API endpoint is now
https://www.fastcron.com/api/v1/.

If you encounter any problem with this change, please let me know.