WWW.UDACITY.COM 网站分析
基本信息
服务器:
cloudflare
IP:
城市:
页面信息
标题:
Learn the Latest Tech Skills; Advance Your Career | Udacity
长度: 59 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:
Learn online and advance your career with courses in programming, data science, artificial intelligence, digital marketing, and more. Gain in-demand technical skills. Join today!
长度: 178 字符; 最佳长度: 50 ~ 160 字符
H1 Tag:
Every course has real projects designed to develop the skills you need to reach your career goals
长度: 97 字符
内部链接:
44 (0 nofollow)
外部链接:
14 (0 nofollow)
建站技术
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 www.udacity.com 的 HTTP header 信息:
HTTP/1.1 200 OK
Date: Mon, 06 May 2024 18:35:48 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
CF-Ray: 87fb127cccc24245-EWR
CF-Cache-Status: DYNAMIC
Age: 254459
Cache-Control: s-maxage=31536000, stale-while-revalidate=2592000
Content-Encoding: gzip
ETag: W/"iinj2kd47m4z8h"
Set-Cookie: ajs_anonymous_id=250874ac-b1c6-427a-8da3-5f833bc51f81; domain=.udacity.com; path=/; Max-Age=31536000;
Strict-Transport-Security: max-age=15552000; includeSubDomains
Vary: Accept-Encoding
Via: 1.1 ef73a156d5c211fdbb7e4231f2a0edca.cloudfront.net (CloudFront)
x-amz-cf-id: sBij6Jx9MpThf78Szjdis9GU1jw3M3W_WCPWyUOqh6UhmL8nWkefkA==
x-amz-cf-pop: JFK50-P2
x-amzn-remapped-content-length: 232293
x-amzn-requestid: ba876c30-79f0-4696-b3ba-9c1b9bf4b9b3
x-amzn-trace-id: root=1-66354109-337913147bb17f237cebb5ac;parent=009a5d0c365eea91;sampled=0;lineage=6884dd32:0
x-cache: Hit from cloudfront
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
x-nextjs-cache: HIT
x-opennext: 1
x-powered-by: Next.js
Set-Cookie: ajs_created_at=1715020548642; domain=.udacity.com; path=/; Max-Age=31536000;
Set-Cookie: viewer_city=Cedar Knolls; domain=.udacity.com; path=/;
Set-Cookie: viewer_country=US; domain=.udacity.com; path=/;
Set-Cookie: viewer_region=NJ; domain=.udacity.com; path=/;
Set-Cookie: NEXT_LOCALE=ar-SA; domain=.udacity.com; path=/; Max-Age=31536000;
Set-Cookie: __cf_bm=7707Ct40i4MSVCVf3eZGpgEhUUdSDdMU58gua7h9qJ0-1715020548-1.0.1.1-qMB5AgfKmeFbW6eCjxEt.k.cB1Yr.Fa.6_lZJ35bfeHIc5FKFEUhMakMQZqNPx4.p1RQKZEYpSLkphq2MXmBs.Vjb6WzowYMPtUDicx8iyk; path=/; expires=Mon, 06-May-24 19:05:48 GMT; domain=.udacity.com; HttpOnly; Secure; SameSite=None
Server: cloudflare
alt-svc: h3=":443"; ma=86400
Date: Mon, 06 May 2024 18:35:48 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
CF-Ray: 87fb127cccc24245-EWR
CF-Cache-Status: DYNAMIC
Age: 254459
Cache-Control: s-maxage=31536000, stale-while-revalidate=2592000
Content-Encoding: gzip
ETag: W/"iinj2kd47m4z8h"
Set-Cookie: ajs_anonymous_id=250874ac-b1c6-427a-8da3-5f833bc51f81; domain=.udacity.com; path=/; Max-Age=31536000;
Strict-Transport-Security: max-age=15552000; includeSubDomains
Vary: Accept-Encoding
Via: 1.1 ef73a156d5c211fdbb7e4231f2a0edca.cloudfront.net (CloudFront)
x-amz-cf-id: sBij6Jx9MpThf78Szjdis9GU1jw3M3W_WCPWyUOqh6UhmL8nWkefkA==
x-amz-cf-pop: JFK50-P2
x-amzn-remapped-content-length: 232293
x-amzn-requestid: ba876c30-79f0-4696-b3ba-9c1b9bf4b9b3
x-amzn-trace-id: root=1-66354109-337913147bb17f237cebb5ac;parent=009a5d0c365eea91;sampled=0;lineage=6884dd32:0
x-cache: Hit from cloudfront
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
x-nextjs-cache: HIT
x-opennext: 1
x-powered-by: Next.js
Set-Cookie: ajs_created_at=1715020548642; domain=.udacity.com; path=/; Max-Age=31536000;
Set-Cookie: viewer_city=Cedar Knolls; domain=.udacity.com; path=/;
Set-Cookie: viewer_country=US; domain=.udacity.com; path=/;
Set-Cookie: viewer_region=NJ; domain=.udacity.com; path=/;
Set-Cookie: NEXT_LOCALE=ar-SA; domain=.udacity.com; path=/; Max-Age=31536000;
Set-Cookie: __cf_bm=7707Ct40i4MSVCVf3eZGpgEhUUdSDdMU58gua7h9qJ0-1715020548-1.0.1.1-qMB5AgfKmeFbW6eCjxEt.k.cB1Yr.Fa.6_lZJ35bfeHIc5FKFEUhMakMQZqNPx4.p1RQKZEYpSLkphq2MXmBs.Vjb6WzowYMPtUDicx8iyk; path=/; expires=Mon, 06-May-24 19:05:48 GMT; domain=.udacity.com; HttpOnly; Secure; SameSite=None
Server: cloudflare
alt-svc: h3=":443"; ma=86400
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。udacity.com 当前共有 23 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| udacity.com | A | 60 | ||
| udacity.com | A | 60 | ||
| udacity.com | A | 60 | ||
| udacity.com | A | 60 | ||
| udacity.com | NS | 21600 | ||
| udacity.com | NS | 21600 | ||
| udacity.com | NS | 21600 | ||
| udacity.com | NS | 21600 | ||
| udacity.com | SOA | 900 | expire: 1209600 serial: 1 | |
| udacity.com | MX | 3600 | pri: 10 | |
| udacity.com | MX | 3600 | pri: 20 | |
| udacity.com | MX | 3600 | pri: 20 | |
| udacity.com | MX | 3600 | pri: 30 | |
| udacity.com | MX | 3600 | pri: 30 | |
| udacity.com | TXT | apple-domain-verification=iaobRRgsJ5xUkcuj | 3600 | |
| udacity.com | TXT | atlassian-domain-verification=mBjfUMIIMEpsVsE5wql1jKvzxVpCWKZwpnSWFbY51pnIrp5nSd+8xJn4GKhfHK7j | 3600 | |
| udacity.com | TXT | atlassian-sending-domain-verification=4a498916-8f31-4a42-b4ec-758ee24b79e4 | 3600 | |
| udacity.com | TXT | facebook-domain-verification=q0sgl66mvrtj3ivlf1s98bn6gxvii2 | 3600 | |
| udacity.com | TXT | google-site-verification=84KO73gDaoDFaQeuYfs21UuXQTu2ChYQUUDAiI3VGp4 | 3600 | |
| udacity.com | TXT | google-site-verification=D9ZNxAUhl3ERHmB3Lu3kkIWEFm4tLKIt4flwL2NTlWk | 3600 | |
| udacity.com | TXT | google-site-verification=rXOxyZounnZasA8Z7oaD3c14JdjS9aKSWvsR1EbUSIQ | 3600 | |
| udacity.com | TXT | status-page-domain-verification=y08j3wqb2sw9 | 3600 | |
| udacity.com | TXT | v=spf1 include:_spf.google.com include:sendgrid.net include:mail.zendesk.com include:mktomail.com include:_spf.salesforce.com ~all | 3600 |