refdesk.com 网站分析
refdesk.com - 基本信息
服务器:
nginx
IP:
未知城市:
未知refdesk.com - 页面信息
标题:
Reference, Facts, News - Free and Family-friendly Resources - Refdesk.comMeta 关键词:
reference,facts,news,family friendly,refdeskMeta 描述信息:
Refdesk is a free and family friendly web site indexing and reviewing quality, credible, and current Internet reference resources.H1:
未知内部链接:
29 (0 nofollow)外部链接:
402 (0 nofollow)refdesk.com - 建站技术
服务器:
nginx
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refdesk.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 refdesk.com 的 HTTP header 信息:
HTTP/1.1 200 OK
Server: nginx
Date: Mon, 29 Jun 2020 12:24:17 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 30473
Last-Modified: Mon, 29 Jun 2020 07:10:19 GMT
Connection: keep-alive
ETag: "5ef993db-7709"
Content-Encoding: gzip
Expires: Mon, 29 Jun 2020 12:29:07 GMT
Cache-Control: max-age=290
X-Ads: 1
Vary: X-Ads
Server: nginx
Date: Mon, 29 Jun 2020 12:24:17 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 30473
Last-Modified: Mon, 29 Jun 2020 07:10:19 GMT
Connection: keep-alive
ETag: "5ef993db-7709"
Content-Encoding: gzip
Expires: Mon, 29 Jun 2020 12:29:07 GMT
Cache-Control: max-age=290
X-Ads: 1
Vary: X-Ads
refdesk.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。refdesk.com 当前共有 10 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| refdesk.com | A | 597 | ||
| refdesk.com | A | 597 | ||
| refdesk.com | MX | 598 | pri: 20 | |
| refdesk.com | MX | 598 | pri: 10 | |
| refdesk.com | NS | 7197 | ||
| refdesk.com | NS | 7197 | ||
| refdesk.com | NS | 7197 | ||
| refdesk.com | NS | 7197 | ||
| refdesk.com | SOA | 597 | expire: 604800 serial: 2016080200 | |
| refdesk.com | TXT | v=spf1 include:emailsrvr.com include:lists.refdesk.com a:secure.refdesk.com a:support.refdesk.com ip4:98.158.19.152 ipv4:98.158.19.153 mx -all | 598 |