Domain Blocked Check

Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.

symcon.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。

18.67.51.90, 18.67.51.116, 18.67.51.35, 18.67.51.110, 65.8.131.5, 65.8.131.95, 65.8.131.69, 52.85.118.88, 52.85.118.106, 52.85.118.72, 52.85.118.26

Mainland IPs

18.67.51.116, 18.67.51.90, 18.67.51.35, 18.67.51.110

Overseas IPs

DNS	Region	Status	IP	Time (ms)
阿里DNS 223.5.5.5	Mainland China	OK	18.67.51.90, 18.67.51.116, 18.67.51.35, 18.67.51.110	65
腾讯DNS 119.29.29.29	Mainland China	OK	18.67.51.110, 18.67.51.90, 18.67.51.116, 18.67.51.35	114
114DNS 114.114.114.114	Mainland China	OK	65.8.131.5, 65.8.131.95, 65.8.131.69	303
百度DNS 180.76.76.76	Mainland China	OK	52.85.118.88, 52.85.118.106, 52.85.118.72, 52.85.118.26	263
Google DNS 8.8.8.8	Overseas	OK	18.67.51.116, 18.67.51.90, 18.67.51.35, 18.67.51.110	90
Cloudflare 1.1.1.1	Overseas	OK	18.67.51.110, 18.67.51.90, 18.67.51.116, 18.67.51.35	69
Quad9 9.9.9.9	Overseas	OK	18.67.51.90, 18.67.51.110, 18.67.51.35, 18.67.51.116	39
OpenDNS 208.67.222.222	Overseas	OK	18.67.51.116, 18.67.51.35, 18.67.51.90, 18.67.51.110	40

URL	Status	Time (ms)
https://symcon.de	HTTP 200	1311

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。