4.cn

4.CN - Buy, Sell & Park Domain Names

Overview

• Status: alive
• First seen: 2026-09-21
• Last crawled: 2026-09-21
• Security grade: F (30/100)
• TLS certificate expires: 2026-11-05
• Inbound links seen: 10

Security & email signals

• ✓ HTTPS
• ✗ HSTS
• ✗ Content-Security-Policy
• ✗ X-Content-Type-Options
• ✗ X-Frame-Options
• ✗ Referrer-Policy
• ✗ Permissions-Policy
• ✓ SPF record
• ✓ DMARC record
• ✗ DKIM record
• ✗ Cookies set securely
• ✓ Has real content (not an empty shell)
• ✓ Valid TLS certificate

Detected technology

Platform & framework: jQuery

Backend language: PHP

Infrastructure: Nginx

This profile is generated automatically from passive, publicly observable data. Think something here is wrong or want this profile removed? See /bot.