Domain Blocked Check

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

planning.center

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。

143.204.80.9, 143.204.80.73, 143.204.80.120, 143.204.80.124, 3.168.178.52, 3.168.178.5, 3.168.178.59, 3.168.178.42, 65.8.131.10, 65.8.131.3, 65.8.131.64, 52.85.118.53, 52.85.118.109, 52.85.118.88, 52.85.118.126

Mainland IPs

3.168.178.5, 3.168.178.42, 3.168.178.52, 3.168.178.59

Overseas IPs

Resolver results

DNS	Region	Status	IP	Time (ms)
阿里DNS 223.5.5.5	Mainland China	OK	143.204.80.9, 143.204.80.73, 143.204.80.120, 143.204.80.124	211
腾讯DNS 119.29.29.29	Mainland China	OK	3.168.178.52, 3.168.178.5, 3.168.178.59, 3.168.178.42	120
114DNS 114.114.114.114	Mainland China	OK	65.8.131.10, 65.8.131.3, 65.8.131.64	342
百度DNS 180.76.76.76	Mainland China	OK	52.85.118.53, 52.85.118.109, 52.85.118.88, 52.85.118.126	497
Google DNS 8.8.8.8	Overseas	OK	3.168.178.5, 3.168.178.42, 3.168.178.52, 3.168.178.59	179
Cloudflare 1.1.1.1	Overseas	OK	3.168.178.42, 3.168.178.59, 3.168.178.5, 3.168.178.52	43
Quad9 9.9.9.9	Overseas	OK	3.168.178.52, 3.168.178.42, 3.168.178.5, 3.168.178.59	447
OpenDNS 208.67.222.222	Overseas	OK	3.168.178.42, 3.168.178.52, 3.168.178.59, 3.168.178.5	106

Access test

URL	Status	Time (ms)
https://planning.center	HTTP 200	366

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。