Mehadi Shawon
Cybersecurity Researcher & Founder, DigiMetrics Hub
I'm a cybersecurity researcher and the founder of DigiMetrics Hub. I've spent the last several years building free network and privacy tools, breaking down how the internet actually works, and helping non-technical readers make sense of IP addresses, DNS, VPNs, SSL/TLS, and modern web security. Every guide published on DigiMetrics Hub is written, edited, and technically reviewed by me.
Areas of expertise
- Network security & internet infrastructure
- Privacy, VPNs, and anonymity online
- DNS, SSL/TLS, and HTTP security
- Practical SEO & technical web performance
- Developer tooling and web utilities
Editorial approach
I only publish guides on topics I've personally worked with. Every article is fact-checked against primary sources (RFCs, vendor documentation, official APIs) and is reviewed and updated when standards change. See our full editorial policy.
What I write about
On DigiMetrics Hub I publish three kinds of content:
- Explainers — beginner-friendly guides like what is an IP address, how DNS works, and what is a VPN.
- How-tos — practical tutorials on privacy, hosting, SEO, and developer workflows.
- Free tools — IP lookup, speed test, DNS lookup, SSL checker, SEO analyzer, password generator and more. Listed on the tools page.
Contact & corrections
Spotted a mistake, have a question, or want me to cover something? I read every email personally and usually respond within 24–48 hours.