Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
iyw.com
Confidence: 中
Region limited
中国内地 DNS 可解析，海外节点解析异常，可能仅面向国内或存在地域限制。
54.177.117.207, 16.162.17.243
Mainland IPs
-
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 54.177.117.207 | 658 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 54.177.117.207 | 318 |
| 114DNS 114.114.114.114 | Mainland China | OK | 16.162.17.243 | 452 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 16.162.17.243 | 478 |
| Google DNS 8.8.8.8 | Overseas | ESERVFAIL | - | 143 |
| Cloudflare 1.1.1.1 | Overseas | ESERVFAIL | - | 254 |
| Quad9 9.9.9.9 | Overseas | ESERVFAIL | - | 150 |
| OpenDNS 208.67.222.222 | Overseas | ESERVFAIL | - | 1386 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://iyw.com | ERR_TLS_CERT_ALTNAME_INVALID | 731 |
| http://iyw.com | ERR_TLS_CERT_ALTNAME_INVALID | 1297 |
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。