SEARCH.USA.GOV 網站分析
SEARCH.USA.GOV 的 SEO 統計數據尚未分析。 我們已啟動該網站的後台分析任務，請稍等幾分鐘。
基本信息
服務器:
未知
IP:
頁面信息
標題:
Official Guide to Government Information and Services | USAGov
Meta 關鍵詞:
未知
Meta 描述信息:
USA.gov can help you start your search for government information by topic and agency.
H1 Tag:
How Do I ...
內部鏈接:
200 (0 nofollow)
外部鏈接:
0 (0 nofollow)
建站技術
HTTP Head 分析
HTTP 協議採用了請求與響應模型，通過HTTP Header 定義了HTTP 傳輸過程中的必要參數。瀏覽器（例如Internet Explorer, Google Chrome, Firefox 等）並不會顯示HTTP header 字段的內容，下面是網站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
DNS 記錄分析
DNS 域名系統（Domain Name System，縮寫）是Internet 的一項基礎服務。它作為將域名和 IP 位址相互映射的一個分佈式數據庫，能夠使人更方便的訪問互聯網。 usa.gov 當前共有 13 項 DNS 記錄。
| 主機 | 類型 | IP/目標 | TTL | 擴充資訊 |
|---|---|---|---|---|
| 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 |