Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
library.link
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。
3.170.221.116, 3.170.221.115, 3.170.221.112, 3.170.221.59, 13.33.88.43, 13.33.88.18, 13.33.88.19, 18.164.52.12, 18.164.52.78, 18.164.52.126, 18.164.52.66
Mainland IPs
3.170.221.116, 3.170.221.115, 3.170.221.112, 3.170.221.59
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 3.170.221.116, 3.170.221.115, 3.170.221.112, 3.170.221.59 | 8 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 3.170.221.115, 3.170.221.59, 3.170.221.112, 3.170.221.116 | 83 |
| 114DNS 114.114.114.114 | Mainland China | OK | 13.33.88.43, 13.33.88.18, 13.33.88.19 | 85 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 18.164.52.12, 18.164.52.78, 18.164.52.126, 18.164.52.66 | 438 |
| Google DNS 8.8.8.8 | Overseas | OK | 3.170.221.116, 3.170.221.115, 3.170.221.112, 3.170.221.59 | 44 |
| Cloudflare 1.1.1.1 | Overseas | OK | 3.170.221.112, 3.170.221.59, 3.170.221.115, 3.170.221.116 | 7 |
| Quad9 9.9.9.9 | Overseas | OK | 3.170.221.112, 3.170.221.115, 3.170.221.59, 3.170.221.116 | 40 |
| OpenDNS 208.67.222.222 | Overseas | OK | 3.170.221.115, 3.170.221.116, 3.170.221.59, 3.170.221.112 | 43 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://library.link | HTTP 200 | 926 |
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。