Domain Blocked Check
Compare DNS resolution between mainland China and overseas resolvers plus an access test to judge whether a domain may be blocked.
schoolbuzz.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。
147.93.77.40, 213.210.57.60, 147.93.77.100, 213.210.57.130, 179.61.189.223, 191.101.228.4, 179.61.189.77, 77.37.48.75
Mainland IPs
147.93.77.100, 213.210.57.130, 2.57.91.182, 84.32.84.203, 147.93.77.53, 213.210.57.234, 147.93.77.51, 213.210.57.12
Overseas IPs
Resolver results
| DNS | Region | Status | IP | Time (ms) |
|---|---|---|---|---|
| 阿里DNS 223.5.5.5 | Mainland China | OK | 147.93.77.40, 213.210.57.60 | 656 |
| 腾讯DNS 119.29.29.29 | Mainland China | OK | 147.93.77.100, 213.210.57.130 | 201 |
| 114DNS 114.114.114.114 | Mainland China | OK | 179.61.189.223, 191.101.228.4 | 515 |
| 百度DNS 180.76.76.76 | Mainland China | OK | 179.61.189.77, 77.37.48.75 | 425 |
| Google DNS 8.8.8.8 | Overseas | OK | 147.93.77.100, 213.210.57.130 | 47 |
| Cloudflare 1.1.1.1 | Overseas | OK | 2.57.91.182, 84.32.84.203 | 230 |
| Quad9 9.9.9.9 | Overseas | OK | 147.93.77.53, 213.210.57.234 | 388 |
| OpenDNS 208.67.222.222 | Overseas | OK | 147.93.77.51, 213.210.57.12 | 43 |
Access test
| URL | Status | Time (ms) |
|---|---|---|
| https://schoolbuzz.com | HTTP 200 | 276 |
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。