WWW.NSA.GOV 網站分析

造訪網站 www.nsa.gov 時發生錯誤

我們在嘗試存取網站 www.nsa.gov 的以下 URL 位址時遇到錯誤:

HTTP 403 是一個 HTTP 狀態碼,表示禁止存取所要求的資源。當伺服器限制我們的機器人存取頁面時,通常會由於防火牆的存在而發生這種情況。

以下內容顯示了我們的伺服器在 2024-05-06 快取的部分歷史分析資料。由於我們的機器人無法存取本網站,數據可能不完整或過時,僅供您參考。

搜索引擎收錄信息

必應:
Google:

頁面信息

標題:
National Security Agency/Central Security Service > Home
長度: 56 字元; 最佳長度: 10 ~ 60 字元
Meta 描述信息:
The official website for NSA -- the National Security Agency National Security Agency/Central Security Service (NSA/CSS). NSA leads the U.S. Government in cryptology that encompasses both signals intelligence (SIGINT) and information assurance (now referred to as cybersecurity) products and services, and enables computer network operations (CNO).
長度: 350 字元; 最佳長度: 50 ~ 160 字元

The length of your meta description seems to be outside the recommended range. Ideally, a META DESCRIPTION should be between 50 and 160 characters, including spaces.

A meta description tag serves as a concise and informative summary of a web page's content, aiming to engage and inform users about the page's topic.

Google relies on the actual content of the page to generate a snippet for search results, but it may also utilize the meta description for a more descriptive representation of the page.

Meta descriptions act as a compelling pitch to persuade users that the page aligns with their search intent. While there's no strict character limit, Google truncates the snippet in search results as necessary to fit the device's width.

Best practices for Meta Descriptions

  • Length: Maintain a description length of 50-160 characters to ensure optimal visibility in search results.
  • Uniqueness: Craft unique descriptions for each page on your website to differentiate their purposes and content.
  • Accuracy: Create descriptions that precisely depict the specific content and purpose of the page.
  • Keywords: Ensure that each web page has a unique meta description containing important keywords relevant to the page's content.
Meta 關鍵詞:
NSA, cybersecurity, cyber security, cyber, jobs, internships, signals intelligence, SIGINT, intelligence, technology, intelligence, cryptology, students, careers, research, code, security, National Security Agency, Central Security Service, CSS,
長度: 246 字元; 最佳長度: 10 ~ 255 字元
H1標籤:
Generating foreign intelligence insights. Applying cybersecurity expertise. Securing the future.
長度: 96 字元; 最佳長度: 10 ~ 255 字元

建站技術

服務器:
AkamaiGHost
SSL 安全:
有效
robots.txt:
不可用
XML 站點地圖:
不可用
Gzip 壓縮:
不可用
favicon.ico:
不可用

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www.nsa.gov 的HTTP header 信息:
HTTP/1.1 403 Forbidden
Server: AkamaiGHost
Content-Length: 395
Expires: Mon, 06 May 2024 22:41:01 GMT
Date: Mon, 06 May 2024 22:41:01 GMT
Connection: close
Content-Type: text/html
Content-Type: text/html
Strict-Transport-Security: max-age=31536000
X-N: S

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。 nsa.gov 當前共有 14 項 DNS 記錄。
主機 類型 IP/目標 TTL 擴充資訊
nsa.govA20
nsa.govNS14098
nsa.govNS14098
nsa.govNS14098
nsa.govNS14098
nsa.govNS14098
nsa.govNS14098
nsa.govSOA21600expire: 2419200
serial: 2024030527
nsa.govMX2158pri: 20
nsa.govMX2158pri: 10
nsa.govMX2158pri: 20
nsa.govMX2158pri: 10
nsa.govTXT
ms=ms92230317
21600
nsa.govTXT
v=spf1 ip4:214.29.60.2/32 ip4:214.29.60.3/32 include:_spf.eemsg.mail.mil include:amazonses.com ~all
21600