WWW.CODECADEMY.COM 网站分析

访问网站 www.codecademy.com 时发生错误

我们在尝试访问网站 www.codecademy.com 的以下 URL 地址时遇到错误:

HTTP 403 是一个 HTTP 状态码,表示禁止访问请求的资源。当服务器限制我们的机器人访问页面时,就会发生这种情况,通常是由于防火墙的存在。

以下内容展示了我们服务器在 2024-05-06 缓存的部分历史分析数据。由于我们的机器人无法访问此网站,数据可能不完整或已过时,仅供您参考。

基本信息

搜索引擎收录信息

必应:
谷歌:

页面信息

标题:
Learn to Code - for Free | Codecademy
长度: 37 字符; 最佳长度: 10 ~ 60 字符
Meta 描述信息:
Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment. Start with HTML, CSS, JavaScript, SQL, Python, Data Science, and more.
长度: 285 字符; 最佳长度: 50 ~ 160 字符

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 关键词:
codecademy,coding,code,programming
长度: 34 字符; 最佳长度: 10 ~ 255 字符
H1标签:
Join the Millions Learning to Code with Codecademy
长度: 52 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 www.codecademy.com 的 HTTP header 信息:
HTTP/1.1 403 Forbidden
Date: Mon, 06 May 2024 16:49:54 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: close
Accept-CH: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
Cross-Origin-Embedder-Policy: require-corp
Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Resource-Policy: same-origin
Origin-Agent-Cluster: ?1
Permissions-Policy: accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
Referrer-Policy: same-origin
X-Frame-Options: SAMEORIGIN
cf-mitigated: challenge
cf-chl-out: N/p5l1AaXmoYwnnjHYiq1qJsqemXWP0eDB3c1Chuq7i8uzV3swA6PTiQzWMfwlSV3958Igfpv4PdD60o7oGnPqUMyElGV8kPu5DgyqU8vTXJO1rq+EtQ39Qg+6u090pL8YZ8TUomlNUyqqSDzUb8qA==$CaL2n27/W1nHmeOZl8jAWg==
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Expires: Thu, 01 Jan 1970 00:00:01 GMT
Set-Cookie: __cf_bm=5GTd3Lfasn9NV02hvnhvkQxomxfu4.CQUCViYC8m6iI-1715014194-1.0.1.1-t7.XBpeUoV7KGENV9uT6rd8ZCdlrmcVShG7G5ubXbqViKKl5uTFb2pEInloG75gxjoIT_QYAhyi9IdQrfPuW1w; path=/; expires=Mon, 06-May-24 17:19:54 GMT; domain=.codecademy.com; HttpOnly; Secure; SameSite=None
Vary: Accept-Encoding
Server: cloudflare
CF-RAY: 87fa775aad7442d8-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。codecademy.com 当前共有 23 项 DNS 记录。
主机 类型 IP/目标 生存时间 扩充信息
codecademy.comA300
codecademy.comA300
codecademy.comNS21600
codecademy.comNS21600
codecademy.comSOA1800expire: 604800
serial: 2338354712
codecademy.comMX300pri: 5
codecademy.comTXT
MS=79764F463C8CD2E367B5BF7B1DF1B1C9FFE48501
300
codecademy.comTXT
MS=ms80117904
300
codecademy.comTXT
apple-domain-verification=6j9Dh5BuEBtMWMMg
300
codecademy.comTXT
atlassian-domain-verification=m7Ac1Hv/T4ePJa3hgcqMgYHykrG65YAE+oy9aqlN+aDA0khgC0tZSgx/8G/3x/yv
300
codecademy.comTXT
facebook-domain-verification=mm5a3aemk4cv9yfjikcr4de2xn0ait
300
codecademy.comTXT
google-site-verification=1pIE7oxQFgbaSths1CckFlGEYBHxpp5pD9F_ZUCcSVA
300
codecademy.comTXT
google-site-verification=BB5unuHbdt4pYsHrMorf_R-mKcUdy5Bk2vvz0Ie_q44
300
codecademy.comTXT
google-site-verification=H0SayPMoRT_4rzjNrg2YvbxiRvQbqSTlwSM0D0wht8U
300
codecademy.comTXT
google-site-verification=M2VbalsxRQjMfelTnHdpgHIeqOKE6CYWnhj6VbGMFH8
300
codecademy.comTXT
google-site-verification=dqlGjeLuQLofS51hgFB6ptoJWM0EkcPoe7G1gmL9muw
300
codecademy.comTXT
google-site-verification=vIdZhswzF-KMQmIllHFhS6VnmeHUvsCKTccrXjab-Lw
300
codecademy.comTXT
google-site-verification=wkpord_VFYRlAcjf2hV21FHnsScCpA9YiMOQqACXsvQ
300
codecademy.comTXT
openai-domain-verification=dv-RFgs6gJx1YSwFBosC1y2RA1n
300
codecademy.comTXT
segment-site-verification=NJFFQLAhEEX3Uyz0vgrzNf3fplm6iYsg
300
codecademy.comTXT
v=spf1 include:customeriomail.com include:mail.zendesk.com include:_spf.google.com include:spf.extole.io include:spf.protection.outlook.com -all
300
codecademy.comAAAA
2606:4700::6811:b778
300
codecademy.comAAAA
2606:4700::6811:b878
300