21tb.com 网站分析
21tb.com - 基本信息
21tb.com - 页面信息
标题:
时代光华-企业数智化学习服务商Meta 关键词:
时代光华,企业培训,人才培养Meta 描述信息:
时代光华是一家专业的企业培训机构，致力于为企业提供全方位的人才培养、组织管理、市场销售等方面的专业培训服务。H1:
广告品牌策划模板内部链接:
37 (0 nofollow)外部链接:
10 (1 nofollow)21tb.com - 建站技术
服务器:
X-Web
SSL 安全:
不可用robots.txt:
不可用XML 站点地图:
不可用Gzip 压缩:
有效favicon.ico:
不可用21tb.com - HTTP Head 分析
HTTP 协议采用了请求与响应模型，通过 HTTP Header 定义了 HTTP 传输过程中的必要参数。 浏览器（例如 Internet Explorer, Google Chrome, Firefox 等）并不会显示 HTTP header 字段的内容，下面是网站 21tb.com 的 HTTP header 信息:
HTTP/1.1 301 Moved Permanently
Server: X-Web
Date: Wed, 26 Jul 2023 08:17:10 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Keep-Alive: timeout=15
Location: http://www.21tb.com/
HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Date: Wed, 26 Jul 2023 08:17:05 GMT
Content-Length: 0
Location: https://www.21tb.com/
Origin-Agent-Cluster: ?0
X-Download-Options: noopen
X-XSS-Protection: 1; mode=block
Cache-Flow: 7309139591
P3P: CP=CAO PSA OUR
FAI-W-FLOW: 382506139
FAI-W-AGENT-AID: 15054508
Service-Lane: 7b1c216500b405fdb2ab4e1f11e8fec1
X-Content-Type-Options: nosniff
X-Permitted-Cross-Domain-Policies: none
Server: F-WEB
HTTP/1.1 200 OK
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Date: Wed, 26 Jul 2023 07:16:00 GMT
FAI-CACHE-STATUS: SRC_NOT_UPDATE
Content-Encoding: gzip
P3P: CP=CAO PSA OUR
X-Download-Options: noopen
Cache-Flow: 4130140755
X-XSS-Protection: 1; mode=block
Service-Lane: 7b1c216500b405fdb2ab4e1f11e8fec1
X-Content-Type-Options: nosniff
FAI-W-FLOW: 86732139
FAI-W-AGENT-AID: 15054508
Origin-Agent-Cluster: ?0
X-Permitted-Cross-Domain-Policies: none
Server: F-WEB
Server: X-Web
Date: Wed, 26 Jul 2023 08:17:10 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Keep-Alive: timeout=15
Location: http://www.21tb.com/
HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Date: Wed, 26 Jul 2023 08:17:05 GMT
Content-Length: 0
Location: https://www.21tb.com/
Origin-Agent-Cluster: ?0
X-Download-Options: noopen
X-XSS-Protection: 1; mode=block
Cache-Flow: 7309139591
P3P: CP=CAO PSA OUR
FAI-W-FLOW: 382506139
FAI-W-AGENT-AID: 15054508
Service-Lane: 7b1c216500b405fdb2ab4e1f11e8fec1
X-Content-Type-Options: nosniff
X-Permitted-Cross-Domain-Policies: none
Server: F-WEB
HTTP/1.1 200 OK
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Date: Wed, 26 Jul 2023 07:16:00 GMT
FAI-CACHE-STATUS: SRC_NOT_UPDATE
Content-Encoding: gzip
P3P: CP=CAO PSA OUR
X-Download-Options: noopen
Cache-Flow: 4130140755
X-XSS-Protection: 1; mode=block
Service-Lane: 7b1c216500b405fdb2ab4e1f11e8fec1
X-Content-Type-Options: nosniff
FAI-W-FLOW: 86732139
FAI-W-AGENT-AID: 15054508
Origin-Agent-Cluster: ?0
X-Permitted-Cross-Domain-Policies: none
Server: F-WEB
21tb.com - DNS 记录分析
DNS 域名系统（Domain Name System，缩写）是 Internet 的一项基础服务。它作为将域名和IP地址相互映射的一个分布式数据库，能够使人更方便地访问互联网。21tb.com 当前共有 6 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| 21tb.com | A | 3600 | ||
| 21tb.com | MX | 3600 | pri: 10 | |
| 21tb.com | MX | 3600 | pri: 20 | |
| 21tb.com | NS | 3600 | ||
| 21tb.com | SOA | 3600 | expire: 1209600 serial: 2015011899 | |
| 21tb.com | TXT | v=spf1 ip4:120.132.46.36 ip4:120.132.46.37 -all | 3600 |