Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
alphacode.de
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。 但本站出口无法访问该站点，可能存在服务器访问限制或地域策略。
213.210.57.181, 147.93.77.196, 147.93.77.49, 213.210.57.141, 179.61.189.47, 191.101.228.196, 179.61.189.48, 191.101.228.239
Mainland IPs
147.93.77.49, 213.210.57.141, 2.57.91.45, 88.222.222.95, 213.210.57.157, 147.93.77.162, 213.210.57.0, 147.93.77.253
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 213.210.57.181, 147.93.77.196 | 46 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 147.93.77.49, 213.210.57.141 | 156 |
| 114DNS 114.114.114.114 | Mainland China | OK | 179.61.189.47, 191.101.228.196 | 403 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 179.61.189.48, 191.101.228.239 | 394 |
| Google DNS 8.8.8.8 | Overseas | OK | 147.93.77.49, 213.210.57.141 | 60 |
| Cloudflare 1.1.1.1 | Overseas | OK | 2.57.91.45, 88.222.222.95 | 105 |
| Quad9 9.9.9.9 | Overseas | OK | 213.210.57.157, 147.93.77.162 | 298 |
| OpenDNS 208.67.222.222 | Overseas | OK | 213.210.57.0, 147.93.77.253 | 141 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://alphacode.de | ETIMEDOUT | 1498 |
| http://alphacode.de | ETIMEDOUT | 956 |
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。