impression means a single event of an advertisement (a banner or a text link) being displayed to a user.
If the website is selling banners, despite ad sales model (CPM - paid for impressions or CPC - paid for clicks), any downtime means a significant loss to its owner.
The solution is to use website monitoring service and react instantly when the downtime alert is received.
Website availability monitoring
Always be the first to know when your website goes down.
Verify the quality of your hosting services (SLA) on a regular basis.
Website Monitoring by SITEIMPULSE features:
tests every 1 minute
3 monitoring servers (North America, Europe, Asia)
monitoring different protocols and ports (http, https, pop3, smtp,
imap, telnet, ssh, dns, connect, sip)
