LOC.GOV 網站分析
基本信息
頁面信息
標題:
Home | Library of Congress
長度: 26 字元; 最佳長度: 10 ~ 60 字元
Meta 關鍵詞:
未知
長度: 0 字元; 最佳長度: 10 ~ 255 字元
Meta 描述信息:
The world's largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan a visit. Home of U.S. Copyright Office.
長度: 157 字元; 最佳長度: 50 ~ 160 字元
H1 Tag:
The Library of Congress Homepage
長度: 32 字元
內部鏈接:
64 (0 nofollow)
外部鏈接:
26 (0 nofollow)
建站技術
服務器:
cloudflare
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loc.gov 的HTTP header 信息:
HTTP/1.1 200 OK
Date: Wed, 15 May 2024 02:43:03 GMT
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Content-Length: 171984
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x-content-type-options: nosniff
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expires: Wed, 15 May 2024 01:59:53 GMT
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x-grace: none
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Date: Wed, 15 May 2024 02:43:03 GMT
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Content-Length: 171984
Connection: keep-alive
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access-control-allow-origin: *
referrer-policy: no-referrer-when-downgrade
strict-transport-security: max-age=3600; preload
x-content-type-options: nosniff
etag: "b271c11825266ad5fe88cfa511469c8d"
expires: Wed, 15 May 2024 01:59:53 GMT
content-security-policy: block-all-mixed-content; default-src https://loc.gov/ https://*.loc.gov/ ; media-src https://loc.gov/ https://*.loc.gov/ https://*.readspeaker.com/ https://*.arcgis.com/ https://*.arcgisonline.com/ https://webapps-cdn.esri.com/ blob:; worker-src https://loc.gov/ https://*.loc.gov/ blob:; font-src https://loc.gov/ https://*.loc.gov/ https://*.arcgis.com/ https://*.arcgisonline.com/ https://webapps-cdn.esri.com/ https://ssl.p.jwpcdn.com/ data:; img-src https://loc.gov/ https://*.loc.gov/ https://congress.gov/ https://*.congress.gov/ https://*.readspeaker.com/ https://*.arcgis.com/ https://*.arcgisonline.com/ https://webapps-cdn.esri.com/ https://*.ssa.gov/ https://dpm.demdex.net/ https://cm.everesttech.net/ https://*.amazonaws.com data: blob:; connect-src https://loc.gov/ https://*.loc.gov/ https://*.arcgis.com/ https://*.arcgisonline.com/ https://webapps-cdn.esri.com/ https://chat-us.libanswers.com/ https://thelibraryofcongress.tt.omtrdc.net/ https://dpm.demdex.net/ https://d3c605m4lmznjl.cloudfront.net/ https://*.s3.us-east-1.amazonaws.com/; style-src https://loc.gov/ https://*.loc.gov/ https://*.readspeaker.com/ https://*.arcgis.com/ https://*.arcgisonline.com/ https://webapps-cdn.esri.com/ https://ssl.p.jwpcdn.com/ https://assets.adobedtm.com/ https://*.ssa.gov/ 'unsafe-inline' blob:; script-src https://loc.gov/ https://*.loc.gov/ https://*.readspeaker.com/ https://*.arcgis.com/ https://*.arcgisonline.com/ https://webapps-cdn.esri.com/ https://ssl.p.jwpcdn.com/ https://assets.adobedtm.com/ https://*.blackbaudcdn.net/ https://*.blackbaud.com/ https://ajax.googleapis.com/ajax/libs/jquery/ https://*.ssa.gov/ https://s.ytimg.com/ 'unsafe-inline' 'unsafe-eval'; frame-src https://loc.gov/ https://*.loc.gov/ https://*.readspeaker.com/ https://*.blackbaudcdn.net/ https://*.blackbaud.com/ https://www.nlstalkingbooks.org/ https://unitedstateslibraryofcongress.demdex.net https://www.youtube-nocookie.com/; frame-ancestors https://loc.gov/ https://*.loc.gov/ https://*.blackbaudcdn.net/ https://*.blackbaud.com/ https://loc.libwizard.com/; report-uri https://errorlogging.loc.gov/api/51/security/?sentry_key=2176ae0b9acd4cd59297edc0e064cc95&sentry_environment=production ;
x-grace: none
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CF-Cache-Status: HIT
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Vary: Accept-Encoding
Server: cloudflare
CF-RAY: 883fc737ec5e0c78-EWR
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。 loc.gov 當前共有 19 項 DNS 記錄。
主機 | 類型 | IP/目標 | TTL | 擴充資訊 |
---|---|---|---|---|
loc.gov | A | 300 | ||
loc.gov | A | 300 | ||
loc.gov | NS | 21600 | ||
loc.gov | NS | 21600 | ||
loc.gov | SOA | 1800 | expire: 604800 serial: 2341180429 | |
loc.gov | MX | 300 | pri: 5 | |
loc.gov | MX | 300 | pri: 5 | |
loc.gov | MX | 300 | pri: 5 | |
loc.gov | MX | 300 | pri: 5 | |
loc.gov | TXT | 62QSYa/kfNXdxXnLjT9/ZOyvqed/KSL3dFy+b7K7EFS08xeEY8vGX0IT9BCOCvkgLa16BcrmaQhTgKeOMK6njA== | 300 | |
loc.gov | TXT | MS=ms90737861 | 300 | |
loc.gov | TXT | adobe-idp-site-verification=02f02861-90f5-4cf5-9922-c67c80a7bf26 | 300 | |
loc.gov | TXT | google-site-verification=D5cqNFQ7z5rT2z4OXeYRmxrMc80omDUqEGtsNFY9N_g | 300 | |
loc.gov | TXT | google-site-verification=o0tsBc2NuJSImRS3MromAcC8lwoaWNp5LFZlmJXB0-0 | 300 | |
loc.gov | TXT | v=spf1 include:spf1.loc.gov include:spf2.loc.gov mx -all | 300 | |
loc.gov | TXT | webexdomainverification.NQCL=b1bef083-e011-4dcf-b1f7-42204b82128e | 300 | |
loc.gov | TXT | yTrNm8yrlLjz94UZ1A2UUPz7Gv5UfCIypoGH1HmXjNs= | 300 | |
loc.gov | AAAA | 2606:4700::6810:3710 | 300 | |
loc.gov | AAAA | 2606:4700::6810:3610 | 300 |