Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
viet.vn
Confidence: 高
Not blocked
各节点 DNS 解析一致且可正常解析，未发现被墙特征。
3.170.221.52, 3.170.221.96, 3.170.221.49, 3.170.221.94, 18.164.154.92, 18.164.154.112, 18.164.154.3, 18.164.154.24
Mainland IPs
3.173.254.61, 3.173.254.8, 3.173.254.6, 3.173.254.82, 3.170.221.49, 3.170.221.52, 3.170.221.94, 3.170.221.96
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 3.170.221.52, 3.170.221.96, 3.170.221.49, 3.170.221.94 | 65 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 3.170.221.49, 3.170.221.52, 3.170.221.94, 3.170.221.96 | 160 |
| 114DNS 114.114.114.114 | Mainland China | OK | 18.164.154.92, 18.164.154.112, 18.164.154.3 | 458 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 18.164.154.24, 18.164.154.3, 18.164.154.112, 18.164.154.92 | 493 |
| Google DNS 8.8.8.8 | Overseas | OK | 3.173.254.61, 3.173.254.8, 3.173.254.6, 3.173.254.82 | 226 |
| Cloudflare 1.1.1.1 | Overseas | OK | 3.170.221.49, 3.170.221.52, 3.170.221.94, 3.170.221.96 | 113 |
| Quad9 9.9.9.9 | Overseas | OK | 3.170.221.94, 3.170.221.52, 3.170.221.96, 3.170.221.49 | 1654 |
| OpenDNS 208.67.222.222 | Overseas | OK | 3.173.254.61, 3.173.254.82, 3.173.254.6, 3.173.254.8 | 149 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://viet.vn | HTTP 200 | 154 |
说明：通过对比中国内地与海外多节点 DNS 解析结果并结合访问测试判断，结果为参考性结论，不能替代专业网络诊断。