https://developers.weixin.qq.com/doc/offiaccount/Basic_Information/Warning_Message_Troubleshooting_Guide.html

我使用在备案过的域名与微信公众平台 对接配置基本信息时提示URL链接超时，偶尔出现token验证失败，但经过抓包服务端没有任何入网请求。

Linux 运行dig命令查询我的域名结果如下：

su# dig @182.254.116.116 test.chinatiger.top

; <<>> DiG 9.11.3-1-Debian <<>> @182.254.116.116 test.chinatiger.top

; (1 server found)

;; global options: +cmd

;; connection timed out; no servers could be reached

其他DNS可以

su# dig 182.254.116.116 test.chinatiger.top

; <<>> DiG 9.11.3-1-Debian <<>> 182.254.116.116 test.chinatiger.top

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 17236

;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:

;182.254.116.116. IN A

;; AUTHORITY SECTION:

. 900 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2019111903 1800 900 604800 86400

;; Query time: 61 msec

;; SERVER: 223.5.5.5#53(223.5.5.5)

;; WHEN: Wed Nov 20 09:42:23 CST 2019

;; MSG SIZE  rcvd: 108

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2811

;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:

;test.chinatiger.top. IN A

;; ANSWER SECTION:

test.chinatiger.top. 30 IN A 114.242.169.39

;; Query time: 3 msec

;; SERVER: 223.5.5.5#53(223.5.5.5)

;; WHEN: Wed Nov 20 09:42:23 CST 2019

;; MSG SIZE  rcvd: 53