www.ncbi.nlm.nih.gov 网站分析
www.ncbi.nlm.nih.gov - 基本信息
www.ncbi.nlm.nih.gov - 搜索引擎收录信息
www.ncbi.nlm.nih.gov - 页面信息
标题:
National Center for Biotechnology InformationMeta 关键词:
未知Meta 描述信息:
未知H1:
NCBI内部链接:
98 (0 nofollow)外部链接:
17 (0 nofollow)www.ncbi.nlm.nih.gov - 建站技术
www.ncbi.nlm.nih.gov - 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 www.ncbi.nlm.nih.gov 的 HTTP header 信息:
HTTP/1.1 200 OK
Date: Sat, 30 May 2020 19:42:08 GMT
Server: Apache
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Referrer-Policy: origin-when-cross-origin
Content-Security-Policy: upgrade-insecure-requests
CAF: 2.0.1
Upgrade: h2,h2c
Connection: Upgrade
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
X-UA-Compatible: IE=Edge
X-XSS-Protection: 1; mode=block
Content-Length: 8519
Content-Type: text/html
Date: Sat, 30 May 2020 19:42:08 GMT
Server: Apache
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Referrer-Policy: origin-when-cross-origin
Content-Security-Policy: upgrade-insecure-requests
CAF: 2.0.1
Upgrade: h2,h2c
Connection: Upgrade
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
X-UA-Compatible: IE=Edge
X-XSS-Protection: 1; mode=block
Content-Length: 8519
Content-Type: text/html
www.ncbi.nlm.nih.gov - 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。nih.gov 当前共有 19 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| nih.gov | A | 3600 | ||
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | MX | 3600 | pri: 10 | |
| nih.gov | NS | 3011 | ||
| nih.gov | NS | 3011 | ||
| nih.gov | NS | 3011 | ||
| nih.gov | SOA | 3600 | expire: 2419200 serial: 6011 | |
| nih.gov | TXT | v=spf1 ip4:128.231.90.64/26 ip4:165.112.13.0/26 ip6:2607:f220:0404:8104::0/64 ip6:2607:f220:402:1a01::0/64 ~all | 3600 | |
| nih.gov | TXT | SDRQ4Pu3aj2Qhnqm0Pu+NCsKPrfBbW56qXduqE9GxA/f5eo+/Ui6umgbTg9PW0hjeg21Q2yCpOALWHqZ91OwZQ== | 3600 |