Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
openlearning.in
Confidence: 高
Possible DNS pollution
中国内地与海外 DNS 解析到完全不同的 IP，可能存在 DNS 污染或 CDN 分线路解析，请结合访问测试判断。
150.171.110.131, 150.171.110.101, 150.171.110.137
Mainland IPs
150.171.110.129, 150.171.110.133, 150.171.110.134
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 150.171.110.131 | 17 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 150.171.110.131 | 85 |
| 114DNS 114.114.114.114 | Mainland China | OK | 150.171.110.101 | 322 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 150.171.110.137 | 365 |
| Google DNS 8.8.8.8 | Overseas | OK | 150.171.110.129 | 41 |
| Cloudflare 1.1.1.1 | Overseas | OK | 150.171.110.133 | 13 |
| Quad9 9.9.9.9 | Overseas | OK | 150.171.110.133 | 13 |
| OpenDNS 208.67.222.222 | Overseas | OK | 150.171.110.134 | 41 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://openlearning.in | HTTP 200 | 883 |
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。