Is Cyfrin.io Legit or Not?
Some signals are mixed. Read the reviews, check the return policy and prefer a payment method with buyer protection.
Last checked October 18, 2026
Summary
Cyfrin.io (operated by Cyfrin Inc) has a trust score of 55 out of 100. The domain registration date could not be verified, and the site uses a valid HTTPS certificate. No customer reviews have been posted yet.
How the site describes itself: "Cyfrin is a blockchain security firm. We help protocols and institutions reduce risk with smart contract audits, formal verification, penetration testing, incident response, and security and risk advisory."
What we found
- +10 Valid HTTPS certificate
- 0 Domain age could not be determined
- −5 No contact details found on the homepage
Every website starts at 50 points. How the score works
Company and contact
- Company
- Cyfrin Inc
- Source
- Copyright notice on the website
- Not found
- Phone
- Not found
- Policies linked
- About, Terms
Domain and security
- Registered
- Unknown
- Domain age
- Unknown
- Expires
- Unknown
- Registrar
- Unknown
- HTTPS
- Valid certificate
- Certificate issuer
- Let's Encrypt until Jan 6, 2027
- DNS / hosting
- Cloudflare
- IP address
- 64.239.123.65
- Email on domain
- Set up
- Google Safe Browsing
- Not checked
Connected websites
Redirects, shared servers, the same operator and links can reveal a network of related sites.
Cyfrin.io reviews
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Is Cyfrin.io legit, safe or a scam?
Is Cyfrin.io legit?
Based on our checks, Cyfrin.io scores 55 out of 100, which we rate as "Use Caution". There are no customer reviews yet, so we cannot confirm what buying from them is like.
Is Cyfrin.io safe to buy from?
Cyfrin.io uses a valid HTTPS certificate, so payment details are encrypted on the way to the site. Whatever the score, pay with a card or PayPal so you can dispute the charge if something goes wrong.
Is Cyfrin.io real or fake?
Cyfrin.io appears to be a real website, but some signals are mixed. Check the contact details and reviews before trusting it with money.
Is Cyfrin.io a scam?
We cannot rule it out. Cyfrin.io shows mixed signals, so read the reviews and start with a small order if you decide to buy.
Is Cyfrin.io trustworthy?
There are not enough customer reviews yet to judge. Our automated checks give it 55 out of 100.
Who owns cyfrin.io?
According to copyright notice on the website, the website is operated by Cyfrin Inc.
How do I log in to Cyfrin.io safely?
Type https://cyfrin.io yourself or use a bookmark, rather than following links in emails or text messages. Scammers copy login pages on lookalike addresses to steal passwords.