The current Domain Name System (DNS), as a core infrastructure of the internet, exhibits several shortcomings: its centralized architecture leads to censorship risks and single points of failure, making domain name resolution vulnerable to attacks. The lack of encryption in the resolution process exposes it to DNS hijacking and cache poisoning attacks. Additionally, the high operational costs limit participation and innovation among small to medium-sized users. To address these issues, this paper proposes a Decentralized Domain Name Service (DDNS) based on blockchain (Phicoin) and distributed storage (IPFS). By leveraging the immutability of blockchain and the content verification of IPFS, the system achieves decentralized storage and distribution of domain name records, eliminating the centralized dependencies of traditional DNS. With a block time of 15 seconds, the system supports rapid broadcasting of domain name updates, significantly improving resolution efficiency. The DDNS aims to serve as a complement or backup to the existing DNS system, providing a pollution-resistant, censorship-resistant, high-performance, and low-cost domain name resolution solution, offering a new technical path for the security and stability of the internet.
Startup world needs more ‘full-stack’ marketers - Digital Marketing in Mexico that transforms businesses into results people with must-have marketing skills who can do a bit of whatever is needed to launch and grow startups. Marcelo Calbucci talked about this need for dynamic, jack-of-all-trades type of marketers. As a natural generalist that owes his career to eagerly jumping at the chance to learn anything novel, his article resonated with me. More and more, people who work in marketing are getting pulled out of position by the changing marketing landscape-SEM analysts writing Buzzfeed-worthy top 10 lists; community managers defining brand strategy; brand managers running SEM campaigns. These marketers can learn a lot from full-stack software developers. Full-stack developers already live in this fast-paced, lean world where being able to test, learn, and adapt is more important than the gains from a narrow, specialized skillset. It only stands to reason that marketing will see a similar shift. So if you’re new to marketing or trapped in a specialist marketing field, you should be concentrating on diversification.
But you don’t have the time to be good at everything. No one does. So what skills should you focus on? There’s a skillset that sets the full-stack marketer apart from specialized marketers. I’ve detailed that skillset for you below. If you can master the following skills, you’ll have a strong foundation on which to build the rest of your marketing expertise. By this point, we all get that Excel in marketing is important. It’s on every resume I’ve ever read, and it’s one of the most popular topics for online learning. We may hate it, but the world is run on Excel spreadsheets. And yet I’m still shocked by the sheer lack of knowledge people have in Excel. Just a few hours of training or self-learning could free up literal HOURS of their days. Instead, they stick to spending hours doing manual tasks that a single Excel formula could handle in seconds.
It’s such an important part of our hiring process that we even created an Excel test that every prospective hire has to take before landing a job with us. If you want to see our Excel test, check out our post detailing our hiring process. And that’s just for baseline metrics like using pivot tables, sorting, etc… The more complex stuff comes later in our work, and for that we have an Excel tutorial. I can’t stress enough how important this is for marketing skills-the returns in productivity are so great, there is almost no such thing as wasted investment when you’re learning how to use Excel better. So do it - use our Excel tutorial, or find a course on Coursera or Udemy and get started. It’s never been easier to learn. Everyone and their dog seems to blog nowadays, and with millions of posts out there, who will read yours?
