About ZZinLink
Making the internet safer for everyone
Our Mission
Millions of people are exposed to phishing links and malicious sites every day. ZZinLink aims to create a world where anyone can easily check the safety of a link before clicking. Our goal is to help you protect yourself with just a 1-second check, without needing complex security knowledge.
Our Story
As smartphone usage became part of daily life, phishing attacks through text messages and emails surged. After witnessing people around us fall victim to delivery scam texts and bank phishing attacks, we were inspired by the thought 'if only they had checked for just one second.' We recognized the need for a tool that anyone could use quickly and easily to verify the safety of a link.
Why ZZinLink
1-Second Real-Time Check
Instantly verify link safety by connecting to global security threat databases.
Strong Privacy Protection
We never store the URLs you enter. Only SHA-256 hash values are used for caching.
Completely Free
Use it anytime for free without any registration.
4 Languages Supported
We provide our service in Korean, English, Chinese, and Japanese.
Operator Information
GroundCode
ZZinLink is a security service operated by GroundCode. We prioritize user privacy and online safety above all.
Baek Giyeol
Full-Stack Developer · CEO of GroundCode
A full-stack developer with 10+ years of experience, having personally built and operated 14 web and mobile services. After witnessing a close acquaintance fall victim to a parcel delivery phishing scam, I felt the need for a tool that anyone could use to check a link's safety in just one second. I built ZZinLink to make security accessible — no complex knowledge required.
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