cutestat - Website Stats and Valuation. CuteStat.
intoDNS - IntoDNS checks the health and configuration and provides DNS report and mail servers report.
Rankchart - Rankchart is one of the unique websites that allows you to examine your websites or watch competitors and locate rich information about website technologies, site reputation, errors, SEO, and ad-word recommendations.
Dnsstuff - DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering.
Site Worth traffic - Site Worth traffic is a cost-effective site that is introduced to estimate the value, daily page views, daily visitors, and daily revenue of a website.
MxToolBox - All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.