Deep Link Ratio Tool - This tool was created to analyze how the deep link ratio of a site affects its rank in search engines. We can use this tool to compare the DLRs for the best ranking sites for a search phrase.

Determine keyword difficulty - Use this tool to check keyword difficulty for good place on search engine. We show if a key is hard to place in good competition page and suggest a similar key.

Directory Submission Manager - Use this free tool to track your submissions to various web directories.

DMOZ Listing Checker - This tool will help you to check if your website have DMOZ listing.

DNS Report - This tool will provide you with a DNS report for your domain. A very large percentage of domains have DNS problems; this tool will help you find those problems and fix them.

DNS Server/IP Domain Pings -

Domain Age Tool - This tools displays the approximate age of a website on the Internet and allows you to view how the website looked when it first started. It also helps you find out the age of your competitor's domains, older domains may get a slight edge in Search Engine Rankings.

Domain Directory Checker - This tool will check to see if a URL appears in some of the most important Internet Directories, such as Gimpsy, Yahoo, Zeal and others.

Domain Dossier - Investigate domains and IP addresses. Also supports internationalized domain names (IDNs).

Domain Stats Tool - This tool helps you get all kind of statistics of your or/and your competitor's domains. The statistics include Alexa Taffic Rank, Age of the domains, Yahoo WebRank, Dmoz listings, count of backlinks and number of pages indexed in Search Engines like Google, Yahoo!, MSN etc.

Domain Typo Generator - This tool generate a list of suggestions of likely human misspellings and typos for the given domain. Because the results are based on the proximity of the characters on a QWERTY keyboard and a database of common spelling/typo mistakes (as well as a few other factors), the results from this tool are relatively accurate and likely to occur in a real-world situation. If used with a competitor’s well-chosen, high-traffic popular domain, this tool can potentially help you to achieve high amounts of traffic by capturing users of the popular website when they make a common typo/spelling error.

Down and Dirty Backlink Check Tool - This tool will help you find backlinks indexed by Yahoo!, MSN, Google, Altavista, GigaBlast, HotBot, Teoma and WiseNut.

Dynamic Keyword Phrase Generator - The Dynamic Keyword Phrase Generator enables you to plug in your primary, secondary and even tertiary keyword phrases. The Dynamic Keyword Phrase Generator will develop a robust list that you can copy and paste into your program of choice.