answers.usa.gov 网站分析

answers.usa.gov - 基本信息

answers.usa.gov - 搜索引擎收录信息

百度:
Bing:
Google:

answers.usa.gov - 页面信息

标题:
Official Guide to Government Information and Services | USAGov
长度: 64 字符; 最佳长度: 10 ~ 60 字符
Meta 关键词:
未知
长度: 0 字符; 最佳长度: 10 ~ 255 字符
Meta 描述信息:
USA.gov can help you start your search for government information by topic and agency.
长度: 87 字符; 最佳长度: 50 ~ 160 字符
H1:
How Do I ...
长度: 12 字符

answers.usa.gov - 建站技术

服务器:
nginx
SSL 安全:
有效
robots.txt:
不可用
XML 站点地图:
不可用
Gzip 压缩:
不可用
favicon.ico:
不可用

answers.usa.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 answers.usa.gov 的 HTTP header 信息:
HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Sun, 31 May 2020 05:12:29 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Location: https://answers.usa.gov/

HTTP/1.1 302 Moved Temporarily
Server: nginx
Date: Sun, 31 May 2020 05:12:29 GMT
Content-Type: text/html
Content-Length: 138
Connection: keep-alive
Location: https://www.usa.gov
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload

HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 113630
Connection: keep-alive
Date: Sun, 31 May 2020 05:12:11 GMT
Last-Modified: Sun, 31 May 2020 05:11:23 GMT
x-amz-version-id: 3DWo21HitwAKxu9AeLQdjIbGJFfu6NN.
ETag: "5226a8dbbe6917478a52a072f4209f7f"
Server: AmazonS3
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload
X-Cache: Hit from cloudfront
Via: 1.1 d77f2f1d7dfcddde244aedf1c9ed7a8e.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: JFK51-C1
X-Amz-Cf-Id: FMpVEv3Blluhm3LoFgjj-v_n2-Re2Kb5mpkwZXrtWXnk1oaXim6i1Q==
Age: 29

answers.usa.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。usa.gov 当前共有 13 项 DNS 记录。
主机 类型 IP/目标 TTL 扩充信息
usa.govA3586
usa.govA3586
usa.govAAAA
2607:f020:2004:1911:cafe:dec:af:50
3586
usa.govAAAA
2607:f020:4:1911:cafe:dec:af:50
3586
usa.govNS3586
usa.govNS3586
usa.govNS3586
usa.govNS3586
usa.govNS3586
usa.govSOA3586expire: 1209600
serial: 490886031
usa.govTXT
amazonses:X5JKkKWosJlNPD8iJfPvNksuvQJzup3fDYEJtve9l20=
286
usa.govTXT
MS=ms45746088
286
usa.govTXT
v=spf1 mx ptr mx:phx-smt-03.cgipdc.com mx:phl-smt-04.cgipdc.com ip4:216.128.240.144/32 ip4:173.252.148.16/32 ip4:173.252.148.2/32 ~all
286