ALISON.COM 网站分析

基本信息

搜索引擎收录信息

必应:
谷歌:

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

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

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.comA300
alison.comA300
alison.comNS21600
alison.comNS21600
alison.comSOA1800expire: 604800
serial: 2373144790
alison.comMX300pri: 10
alison.comMX300pri: 10
alison.comMX300pri: 1
alison.comMX300pri: 5
alison.comMX300pri: 5
alison.comTXT
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.comTXT
google-site-verification=FscGg9Go57I40Utb4x9cSoJ7Vwx3KO1VE2CbVD2M8l0
300
alison.comTXT
google-site-verification=N_n52U5wUjsAXELhKwMLVN1EtLs351OwfRx8ftdYGmQ
300
alison.comTXT
google-site-verification=A7Huw5jviMv61FexCkTIaw6gQXVACYaWBa0BLC1cUl0
300
alison.comTXT
google-site-verification=IQOE8Nb89vheBE0ZUvRuvlV4AbBQI6N3zDWs5W-rjcQ
300
alison.comTXT
google-site-verification=7CRHGaLUTgQmjypBIuIoXZBPNoT7bexijFNu4nACQps
300
alison.comTXT
google-site-verification=WCqYby8KgNjS7nB-tsJ8TyxUQq89NiyyhsuSbDWEbJk
300
alison.comAAAA
2606:4700::6812:101c
299
alison.comAAAA
2606:4700::6812:111c
299