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About Jonathan Zhang

Jonathan Zhang is the founder and CEO of JsonWhois — a domain API service provider that enable cybersecurity specialists and other professionals to stay on top of whois data, monitor the historical appearance of websites, and gather social data.

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The Domain Name System (DNS) is the grey eminence of the Internet. That is why many online professionals may not be familiar with its potential even though they deal with it every day. DNS-related processes are crucial for interactions on the Web because every email, web page, or tweet uses the domain name system to […]

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Though full of potential, email marketing is surely no walk in the park. Every organization is different. Competition is tough. Attention span is going down. No hard rules are in place. That said, success still requires following some best practices. For instance, it’s crucial that the email addresses accumulated in lists and databases are valid […]

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Did you know that your domain carries a reputation that can affect the outcome of your marketing efforts? That’s right, operations on the Internet are forged in trust, and you’ve got to make a name for yourself.  Email service providers, among others, are thoroughly taking domain reputation into account while deciding whether they should accept […]

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Quintillion bytes of data were generated today, and there’s no sign of that slowing down any time soon. Whether we’re uploading files to a server or posting a tweet, we all contribute to the incredible amount of information available on the Web. But the growth of the Internet brings with it both positivity and negativity. […]

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First thing first, what is WHOIS? In a nutshell, it’s a repository of data about domains and domain owners. Businesses and governmental agencies have turned to this information for purposes as diverse as cybercrime prevention, fraud investigation, marketing research, intellectual property protection, and more. The thing with WHOIS data, however, is that it’s most valuable […]

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