search.usa.gov 网站分析
search.usa.gov - 基本信息
search.usa.gov - 页面信息
标题:
Official Guide to Government Information and Services | USAGovMeta 关键词:
未知Meta 描述信息:
USA.gov can help you start your search for government information by topic and agency. H1:
How Do I ...内部链接:
200 (0 nofollow)外部链接:
0 (0 nofollow)search.usa.gov - 建站技术
服务器:
Apache
SSL 安全:
不可用robots.txt:
不可用XML 站点地图:
不可用Gzip 压缩:
不可用favicon.ico:
不可用search.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 search.usa.gov 的 HTTP header 信息:
HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=iso-8859-1
Date: Fri, 29 May 2020 21:32:27 GMT
Location: https://www.usa.gov/
Server: Apache
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload
Via: 1.1 proxy4.us-east-1.prod.infr.search.usa.gov:8443
Content-Length: 292
Connection: keep-alive
HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 113630
Connection: keep-alive
Date: Fri, 29 May 2020 21:24:00 GMT
Last-Modified: Fri, 29 May 2020 21:21:21 GMT
x-amz-version-id: PRff61qDuTBCrcxCD6hoOjwdIgaGKOri
ETag: "5226a8dbbe6917478a52a072f4209f7f"
Server: AmazonS3
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload
X-Cache: Hit from cloudfront
Via: 1.1 ab95c5a0dcf51f52101ed4d59d15a2a3.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: JFK51-C1
X-Amz-Cf-Id: 0HnMpzbLIH9D5NdR3224paWy39OqVsv0j8hl5BjUp5SRy8cN6gr0GQ==
Age: 508
Content-Type: text/html; charset=iso-8859-1
Date: Fri, 29 May 2020 21:32:27 GMT
Location: https://www.usa.gov/
Server: Apache
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload
Via: 1.1 proxy4.us-east-1.prod.infr.search.usa.gov:8443
Content-Length: 292
Connection: keep-alive
HTTP/1.1 200 OK
Content-Type: text/html
Content-Length: 113630
Connection: keep-alive
Date: Fri, 29 May 2020 21:24:00 GMT
Last-Modified: Fri, 29 May 2020 21:21:21 GMT
x-amz-version-id: PRff61qDuTBCrcxCD6hoOjwdIgaGKOri
ETag: "5226a8dbbe6917478a52a072f4209f7f"
Server: AmazonS3
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload
X-Cache: Hit from cloudfront
Via: 1.1 ab95c5a0dcf51f52101ed4d59d15a2a3.cloudfront.net (CloudFront)
X-Amz-Cf-Pop: JFK51-C1
X-Amz-Cf-Id: 0HnMpzbLIH9D5NdR3224paWy39OqVsv0j8hl5BjUp5SRy8cN6gr0GQ==
Age: 508
search.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.gov | A | 3586 | ||
| usa.gov | A | 3586 | ||
| usa.gov | AAAA | 2607:f020:2004:1911:cafe:dec:af:50 | 3586 | |
| usa.gov | AAAA | 2607:f020:4:1911:cafe:dec:af:50 | 3586 | |
| usa.gov | NS | 3586 | ||
| usa.gov | NS | 3586 | ||
| usa.gov | NS | 3586 | ||
| usa.gov | NS | 3586 | ||
| usa.gov | NS | 3586 | ||
| usa.gov | SOA | 3586 | expire: 1209600 serial: 490886031 | |
| usa.gov | TXT | amazonses:X5JKkKWosJlNPD8iJfPvNksuvQJzup3fDYEJtve9l20= | 286 | |
| usa.gov | TXT | MS=ms45746088 | 286 | |
| usa.gov | TXT | 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 |