down.51cto.com 网站分析
down.51cto.com - 基本信息
down.51cto.com - 页面信息
标题:
系统升级中Meta 关键词:
Kotlin教程,csdn,linux安装命令,python基础教程,python爬虫,mysql教程,PHP开发工具,oracle11g,Java编程,jquery ajax，Javascript学习指南,Hadoop开发环境搭建Meta 描述信息:
51CTO下载中心致力于为全球IT专业人士提供完全免费、安全可靠、下载速度最快的技术资料下载服务。提供业界最主流的网络技术、开发技术、数据库技术、信息化资料下载、以及各类程序源码、解决方案、白皮书、电子书等。H1:
未知内部链接:
0 (0 nofollow)外部链接:
18 (0 nofollow)down.51cto.com - 建站技术
服务器:
WAF/2.4-12.1
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down.51cto.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 down.51cto.com 的 HTTP header 信息:
HTTP/1.1 302 Moved Temporarily
Date: Wed, 03 Jun 2020 00:15:59 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: waf_cookie=c6cb9f07-7b6d-44c5ae688f3287a5d2d6943a2d1dfc27ed1c; Expires=1591150559; Path=/; HttpOnly
Set-Cookie: acw_tc=2760829f15911433597636139ec5ee643fca1a995cd95c121df996eb86ebba;path=/;HttpOnly;Max-Age=1800
Location: https://down.51cto.com/download.php?do=uploadnew
Load-Balancing: web09_down
Load-Balancing: web09_down
X-Request-Id: 2bc7e2f1140c2f884f88e9e8c14c3bd0
Server: WAF/2.4-12.1
HTTP/1.1 200 OK
Date: Wed, 03 Jun 2020 00:16:00 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: waf_cookie=489e18fe-4f59-429dd5d39a0f6aac2ed0e4e3eb6a9c51af54; Expires=1591150560; Path=/; HttpOnly
Set-Cookie: acw_tc=2760829f15911433600296149ec5ee230cdb6f4dd291c08d99416a5501f56a;path=/;HttpOnly;Max-Age=1800
Vary: Accept-Encoding
X-Request-ID: 932b9668d791669e794f2e8caf83d4cd
Set-Cookie: PHPSESSID=nagpggdls03uf65dmhfbdin964; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Load-Balancing: web09_down
Load-Balancing: web09_down
Content-Encoding: gzip
Server: WAF/2.4-12.1
Date: Wed, 03 Jun 2020 00:15:59 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: waf_cookie=c6cb9f07-7b6d-44c5ae688f3287a5d2d6943a2d1dfc27ed1c; Expires=1591150559; Path=/; HttpOnly
Set-Cookie: acw_tc=2760829f15911433597636139ec5ee643fca1a995cd95c121df996eb86ebba;path=/;HttpOnly;Max-Age=1800
Location: https://down.51cto.com/download.php?do=uploadnew
Load-Balancing: web09_down
Load-Balancing: web09_down
X-Request-Id: 2bc7e2f1140c2f884f88e9e8c14c3bd0
Server: WAF/2.4-12.1
HTTP/1.1 200 OK
Date: Wed, 03 Jun 2020 00:16:00 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: waf_cookie=489e18fe-4f59-429dd5d39a0f6aac2ed0e4e3eb6a9c51af54; Expires=1591150560; Path=/; HttpOnly
Set-Cookie: acw_tc=2760829f15911433600296149ec5ee230cdb6f4dd291c08d99416a5501f56a;path=/;HttpOnly;Max-Age=1800
Vary: Accept-Encoding
X-Request-ID: 932b9668d791669e794f2e8caf83d4cd
Set-Cookie: PHPSESSID=nagpggdls03uf65dmhfbdin964; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Load-Balancing: web09_down
Load-Balancing: web09_down
Content-Encoding: gzip
Server: WAF/2.4-12.1
down.51cto.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。51cto.com 当前共有 6 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| 51cto.com | A | 463 | ||
| 51cto.com | MX | 463 | pri: 10 | |
| 51cto.com | MX | 463 | pri: 5 | |
| 51cto.com | NS | 86263 | ||
| 51cto.com | NS | 86263 | ||
| 51cto.com | SOA | 465 | expire: 1209600 serial: 1472193368 |