Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
copd.net
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。
52.85.154.125, 52.85.154.28, 52.85.154.52, 52.85.154.58, 143.204.1.37, 143.204.1.58, 143.204.1.113, 143.204.1.5, 18.66.122.120, 18.66.122.6, 18.66.122.18, 3.160.188.78, 3.160.188.34, 3.160.188.96, 3.160.188.100
Mainland IPs
143.204.1.5, 143.204.1.113, 143.204.1.37, 143.204.1.58, 52.85.154.28, 52.85.154.52, 52.85.154.58, 52.85.154.125, 99.86.101.38, 99.86.101.28, 99.86.101.83, 99.86.101.53
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 52.85.154.125, 52.85.154.28, 52.85.154.52, 52.85.154.58 | 63 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 143.204.1.37, 143.204.1.58, 143.204.1.113, 143.204.1.5 | 82 |
| 114DNS 114.114.114.114 | Mainland China | OK | 18.66.122.120, 18.66.122.6, 18.66.122.18 | 401 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 3.160.188.78, 3.160.188.34, 3.160.188.96, 3.160.188.100 | 308 |
| Google DNS 8.8.8.8 | Overseas | OK | 143.204.1.5, 143.204.1.113, 143.204.1.37, 143.204.1.58 | 48 |
| Cloudflare 1.1.1.1 | Overseas | OK | 52.85.154.28, 52.85.154.52, 52.85.154.58, 52.85.154.125 | 11 |
| Quad9 9.9.9.9 | Overseas | OK | 99.86.101.38, 99.86.101.28, 99.86.101.83, 99.86.101.53 | 8 |
| OpenDNS 208.67.222.222 | Overseas | OK | 143.204.1.5, 143.204.1.37, 143.204.1.58, 143.204.1.113 | 229 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://copd.net | HTTP 202 | 547 |
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。