GSAS.HARVARD.EDU 网站分析
GSAS.HARVARD.EDU 的 SEO 统计信息上次更新是在 60 天前。 我们已启动该网站的后台分析任务，请稍等几分钟。
基本信息
服务器:
未知
IP:
城市:
页面信息
标题:
Harvard University - The Graduate School of Arts and Sciences
Meta 关键词:
未知
Meta 描述信息:
未知
H1 Tag:
Harvard University - The Graduate School of Arts and Sciences
内部链接:
82 (0 nofollow)
外部链接:
10 (0 nofollow)
建站技术
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 gsas.harvard.edu 的 HTTP header 信息:
HTTP/1.1 200 OK
Connection: keep-alive
Content-Length: 34280
Cache-Control: public, max-age=900
Content-Encoding: gzip
Content-Language: en
Content-Type: text/html; charset=utf-8
Etag: W/"1591670216-0"
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Tue, 09 Jun 2020 02:36:56 GMT
Link: <https://gsas.harvard.edu/>; rel="canonical",<https://gsas.harvard.edu/>; rel="shortlink"
Server: nginx
Strict-Transport-Security: max-age=300
X-Content-Type-Options: nosniff
X-Drupal-Cache: MISS
X-Frame-Options: SAMEORIGIN
X-Generator: Drupal 7 (https://www.drupal.org)
X-Pantheon-Styx-Hostname: styx-fe1-a-789d66bff9-2wvdc
X-Styx-Req-Id: 16240d0c-a9fa-11ea-8a5d-4ae9f78fb3e7
X-Ua-Compatible: IE=edge
Date: Tue, 09 Jun 2020 03:02:08 GMT
X-Served-By: cache-mdw17327-MDW, cache-lga21934-LGA
X-Cache: HIT, HIT
X-Cache-Hits: 1, 1
X-Timer: S1591671729.695293,VS0,VE1
Vary: Accept-Encoding, Cookie, Cookie, Cookie
Age: 606
Accept-Ranges: bytes
Via: 1.1 varnish
Connection: keep-alive
Content-Length: 34280
Cache-Control: public, max-age=900
Content-Encoding: gzip
Content-Language: en
Content-Type: text/html; charset=utf-8
Etag: W/"1591670216-0"
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Tue, 09 Jun 2020 02:36:56 GMT
Link: <https://gsas.harvard.edu/>; rel="canonical",<https://gsas.harvard.edu/>; rel="shortlink"
Server: nginx
Strict-Transport-Security: max-age=300
X-Content-Type-Options: nosniff
X-Drupal-Cache: MISS
X-Frame-Options: SAMEORIGIN
X-Generator: Drupal 7 (https://www.drupal.org)
X-Pantheon-Styx-Hostname: styx-fe1-a-789d66bff9-2wvdc
X-Styx-Req-Id: 16240d0c-a9fa-11ea-8a5d-4ae9f78fb3e7
X-Ua-Compatible: IE=edge
Date: Tue, 09 Jun 2020 03:02:08 GMT
X-Served-By: cache-mdw17327-MDW, cache-lga21934-LGA
X-Cache: HIT, HIT
X-Cache-Hits: 1, 1
X-Timer: S1591671729.695293,VS0,VE1
Vary: Accept-Encoding, Cookie, Cookie, Cookie
Age: 606
Accept-Ranges: bytes
Via: 1.1 varnish
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。harvard.edu 当前共有 12 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| harvard.edu | A | 300 | ||
| harvard.edu | A | 300 | ||
| harvard.edu | MX | 180 | pri: 100 | |
| harvard.edu | MX | 180 | pri: 100 | |
| harvard.edu | NS | 3600 | ||
| harvard.edu | NS | 3600 | ||
| harvard.edu | SOA | 300 | expire: 2419200 serial: 2010090363 | |
| harvard.edu | TXT | google-site-verification=DzhZyP8pu0M1-RFghfTcSN-9poidboYRNdfn2Rf2hCQ | 300 | |
| harvard.edu | TXT | MS=ms35192554 | 300 | |
| harvard.edu | TXT | google-site-verification=xqg8LPF_v_QMEIST789q8xhRDqUEX4_8lQjAvV6YykY | 300 | |
| harvard.edu | TXT | jAykGnWytyLeBseMa8x2/MBve6/yQqana4yrAc1ROoei7uZHUkM2FU0Xx4qI/rm+kOGdImZdoq0fdodgLEw1dg== | 300 | |
| harvard.edu | TXT | xIGeuA0e5B1BOjTE4IBO806ziFX9G1m2dVJ8zO7CMkmKwZ6MEkMXC0P7n5SRCGOdS9jbceH/7gKYgD4h9FBGKA== | 300 |