Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
postid.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。
157.197.97.49, 157.197.97.48, 23.192.191.144, 23.192.191.137, 184.26.127.49, 184.26.127.50, 23.208.12.138, 23.208.12.186
Mainland IPs
23.192.191.144, 23.192.191.137, 203.251.233.203, 203.251.233.185, 211.239.236.24, 211.239.236.17
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 157.197.97.49, 157.197.97.48 | 40 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 23.192.191.144, 23.192.191.137 | 108 |
| 114DNS 114.114.114.114 | Mainland China | OK | 184.26.127.49, 184.26.127.50 | 505 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 23.208.12.138, 23.208.12.186 | 310 |
| Google DNS 8.8.8.8 | Overseas | OK | 23.192.191.144, 23.192.191.137 | 43 |
| Cloudflare 1.1.1.1 | Overseas | OK | 203.251.233.203, 203.251.233.185 | 10 |
| Quad9 9.9.9.9 | Overseas | OK | 211.239.236.24, 211.239.236.17 | 6 |
| OpenDNS 208.67.222.222 | Overseas | OK | 23.192.191.144, 23.192.191.137 | 296 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://postid.com | HTTP 404 | 565 |
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。