Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
express.com
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。
203.251.233.97, 203.251.233.89, 211.239.236.88, 211.239.236.66, 95.100.110.8, 95.100.110.29, 95.100.104.19, 95.100.104.34
Mainland IPs
23.62.20.72, 23.62.20.112, 23.76.153.42, 104.70.122.114, 211.239.236.66, 211.239.236.88, 23.56.0.17, 23.56.0.21
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 203.251.233.97, 203.251.233.89 | 7 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 211.239.236.88, 211.239.236.66 | 110 |
| 114DNS 114.114.114.114 | Mainland China | OK | 95.100.110.8, 95.100.110.29 | 503 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 95.100.104.19, 95.100.104.34 | 445 |
| Google DNS 8.8.8.8 | Overseas | OK | 23.62.20.72, 23.62.20.112 | 40 |
| Cloudflare 1.1.1.1 | Overseas | OK | 23.76.153.42, 104.70.122.114 | 4 |
| Quad9 9.9.9.9 | Overseas | OK | 211.239.236.66, 211.239.236.88 | 218 |
| OpenDNS 208.67.222.222 | Overseas | OK | 23.56.0.17, 23.56.0.21 | 130 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://express.com | HTTP 403 | 561 |
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。