ALISON.COM 网站分析
基本信息
URL:
服务器:
cloudflare
IP:
城市:
页面信息
标题:
Alison | Free Online Courses & Online Learning
长度: 46 字符; 最佳长度: 10 ~ 60 字符
Meta 描述信息:
Free online courses with certificates. Join 10 million graduates and empower your career. Study, learn, certify, upskill with free online learning and training
长度: 159 字符; 最佳长度: 50 ~ 160 字符
Meta 关键词:
alison courses
长度: 14 字符; 最佳长度: 10 ~ 255 字符
H1标签:
Free Online Courses With Certificates & Diplomas
长度: 48 字符; 最佳长度: 10 ~ 255 字符
外部链接:
20 (14 nofollow)
内部链接:
92 (4 nofollow)
建站技术
服务器:
cloudflare
SSL 安全:
有效
robots.txt:
不可用
XML 站点地图:
不可用
Gzip 压缩:
有效
favicon.ico:
不可用
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 alison.com 的 HTTP header 信息:
HTTP/1.1 200 OK
Date: Tue, 20 May 2025 11:45:07 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Cache-Control: no-cache, private
Set-Cookie: alison_session=Q9O18FNW92p5JfqbeXZkLYtrDIDsQJIN1k2KGfjX; expires=Tue, 20-May-2025 12:45:07 GMT; Max-Age=3600; path=/; domain=.alison.com; secure; httponly; samesite=lax
x-frame-options: SAMEORIGIN
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS, DELETE, PUT, PATCH
access-control-max-age: 1000
access-control-allow-headers: x-requested-with, Content-Type, origin, authorization, accept, client-security-token
vary: Accept-Encoding
x-xss-protection: 1; mode=block
content-security-policy: frame-ancestors 'self';
x-content-type-options: nosniff
cf-cache-status: DYNAMIC
Server-Timing: cfCacheStatus;desc="DYNAMIC"
Strict-Transport-Security: max-age=31536000; preload
Set-Cookie: __cf_bm=JVtsbMFdST8x.mApDBQ_lvnNja9hUwpVP3GLqXMcCzg-1747741507-1.0.1.1-b.WHIZpVuUrLVd3pZrWQCh7iDfA17T4IMozpVzu.jaBG_FFgkwL.f45qRU.QvAH1DTxwJEeg06U6sI0qEwWtkOq6TvHwSAj_1uIdqzdMm0I; path=/; expires=Tue, 20-May-25 12:15:07 GMT; domain=.alison.com; HttpOnly; Secure; SameSite=None
Set-Cookie: _cfuvid=YxPPL59WluNQhoYZrGXZZj16QBfca9of3mcrASeYj.4-1747741507257-0.0.1.1-604800000; path=/; domain=.alison.com; HttpOnly; Secure; SameSite=None
Server: cloudflare
CF-RAY: 942b9602ca738c72-EWR
Content-Encoding: gzip
Date: Tue, 20 May 2025 11:45:07 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Cache-Control: no-cache, private
Set-Cookie: alison_session=Q9O18FNW92p5JfqbeXZkLYtrDIDsQJIN1k2KGfjX; expires=Tue, 20-May-2025 12:45:07 GMT; Max-Age=3600; path=/; domain=.alison.com; secure; httponly; samesite=lax
x-frame-options: SAMEORIGIN
access-control-allow-origin: *
access-control-allow-methods: POST, GET, OPTIONS, DELETE, PUT, PATCH
access-control-max-age: 1000
access-control-allow-headers: x-requested-with, Content-Type, origin, authorization, accept, client-security-token
vary: Accept-Encoding
x-xss-protection: 1; mode=block
content-security-policy: frame-ancestors 'self';
x-content-type-options: nosniff
cf-cache-status: DYNAMIC
Server-Timing: cfCacheStatus;desc="DYNAMIC"
Strict-Transport-Security: max-age=31536000; preload
Set-Cookie: __cf_bm=JVtsbMFdST8x.mApDBQ_lvnNja9hUwpVP3GLqXMcCzg-1747741507-1.0.1.1-b.WHIZpVuUrLVd3pZrWQCh7iDfA17T4IMozpVzu.jaBG_FFgkwL.f45qRU.QvAH1DTxwJEeg06U6sI0qEwWtkOq6TvHwSAj_1uIdqzdMm0I; path=/; expires=Tue, 20-May-25 12:15:07 GMT; domain=.alison.com; HttpOnly; Secure; SameSite=None
Set-Cookie: _cfuvid=YxPPL59WluNQhoYZrGXZZj16QBfca9of3mcrASeYj.4-1747741507257-0.0.1.1-604800000; path=/; domain=.alison.com; HttpOnly; Secure; SameSite=None
Server: cloudflare
CF-RAY: 942b9602ca738c72-EWR
Content-Encoding: gzip
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。alison.com 当前共有 19 项 DNS 记录。
主机 | 类型 | IP/目标 | 生存时间 | 扩充信息 |
---|---|---|---|---|
alison.com | A | 300 | ||
alison.com | A | 300 | ||
alison.com | NS | 21600 | ||
alison.com | NS | 21600 | ||
alison.com | SOA | 1800 | expire: 604800 serial: 2373144790 | |
alison.com | MX | 300 | pri: 10 | |
alison.com | MX | 300 | pri: 10 | |
alison.com | MX | 300 | pri: 1 | |
alison.com | MX | 300 | pri: 5 | |
alison.com | MX | 300 | pri: 5 | |
alison.com | TXT | v=spf1 mx include:_spf.google.com include:one.zoho.com include:mailgun.org ip4:3.208.157.156 ip4:52.44.16.140 ip4:52.4.199.233 ip4:3.216.97.65 ip4:50.19.196.167 ip4:34.198.87.239 ip4:34.201.207.162 -all | 300 | |
alison.com | TXT | google-site-verification=FscGg9Go57I40Utb4x9cSoJ7Vwx3KO1VE2CbVD2M8l0 | 300 | |
alison.com | TXT | google-site-verification=N_n52U5wUjsAXELhKwMLVN1EtLs351OwfRx8ftdYGmQ | 300 | |
alison.com | TXT | google-site-verification=A7Huw5jviMv61FexCkTIaw6gQXVACYaWBa0BLC1cUl0 | 300 | |
alison.com | TXT | google-site-verification=IQOE8Nb89vheBE0ZUvRuvlV4AbBQI6N3zDWs5W-rjcQ | 300 | |
alison.com | TXT | google-site-verification=7CRHGaLUTgQmjypBIuIoXZBPNoT7bexijFNu4nACQps | 300 | |
alison.com | TXT | google-site-verification=WCqYby8KgNjS7nB-tsJ8TyxUQq89NiyyhsuSbDWEbJk | 300 | |
alison.com | AAAA | 2606:4700::6812:101c | 299 | |
alison.com | AAAA | 2606:4700::6812:111c | 299 |