Mark is a technical writer at Dotcom-Monitor. He has over 15 years experience in IT administration.  When he's not evangelizing the importance of web performance, Mark enjoys unplugging in the Minnesota Northwoods with his family and friends. You can find Mark on Google+.


What is the cost of Downtime?

In a recent report by IDC titled, “DevOps and the Cost of Downtime: Fortune 1000 Best Practice Metrics Quantified,” the cost of downtime was explored across Fortune 1000 organizations. The numbers they arrived at may surprise you. The average cost of application downtime among fortune 1000 companies was estimated at somewhere between 500,000 and 1 million dollars per hour! The total cost of downtime per year was estimated to be between 1.25 billion and 2.5 billion dollars per year.

DNSBL Email Blacklist Service Updated

One of the Blacklists that Dotcom-Monitor used- the (Abusive Host Blocking List) has been shut down by the list owners  (see   In the mean time, while removing that list from our system, some users with blacklist alerts may have received false positives stating that their domain or IP address was black listed.  The…