|bello network monitoring offers reliable network and website monitoring using Paessler's IPCheck? Technology, web or windows user interface. Sensor types include PING, PORT, HTTP, HTTPS, Advanced HTTP (e.g. for content checks), HTTP Transaction, DNS, SMTP, POP3, SNMP, FTP and more. Notifications can be triggered by uptimes, downtimes or slow responses. Notifications can be sent to you by email, ICQ, SMS or pager messages.