QUIZLET.COM 网站分析

访问网站 quizlet.com 时发生错误

我们在尝试访问网站 quizlet.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:
Learning tools & flashcards, for free | Quizlet
长度: 47 字符; 最佳长度: 10 ~ 60 字符
Meta 描述信息:
Quizlet makes simple learning tools that let you study anything. Start learning today with flashcards, games and learning tools — all for free.
长度: 143 字符; 最佳长度: 50 ~ 160 字符
Meta 关键词:
长度: 0 字符; 最佳长度: 10 ~ 255 字符

The length of your meta keywords seems to be outside the recommended range. Ideally, a meta keywords should be between 10 and 255 characters, including spaces.

Meta keywords are a specific type of meta tag that appear in the HTML code of a web page. They provide information to search engines about the topic of the page. Meta keywords were once used to help rank web pages in search engine results. However, due to the abuse by webmasters and marketers, Google claims to have stopped using them more than a decade ago. Despite this, there are still reasons to consider using meta keywords:

  • Uncertain Impact on Google's Algorithm: While Google devalued meta keywords, it is uncertain if they were entirely removed from its ranking algorithm. Google keeps its ranking algorithms top secret to deter people from gaming the system.
  • Other Search Engines and CMS: Other search engines like Yandex, Baidu, and Naver may still use meta keywords. Additionally, some internal CMS search systems, such as SOLR and Algolia, also utilize the meta keywords tag.

Best practices for Meta Keywords

  • Relevance is Key: It is crucial to choose keywords that accurately reflect the content of your page.
  • Keep it Limited: It is generally recommended not to exceed more than 10 meta keywords for a single page. Also, the content length should not exceed 255 characters (including spaces).
  • Consider Long-Tail Keywords: Long-tail keywords are more specific and longer phrases that target a niche audience. These keywords can be highly effective in driving targeted traffic to your website.

Remember, meta keywords are just one aspect of search engine optimization (SEO), and search engines now place less emphasis on them compared to other factors. However, by following these best practices, you can still optimize your meta keywords effectively and improve the visibility of your web pages.

H1标签:
Over 90% of students who use Quizlet report higher grades.
长度: 58 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 quizlet.com 的 HTTP header 信息:
HTTP/1.1 403 Forbidden
Date: Tue, 07 May 2024 01:58:34 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: w3rVnRv8UaJ2k1E7WcgmkJmG7WmbubRVkiJd1wL6BgjVYv2KczKFDRgOuPJSEEzPbzSK7xiNKTixr4azyl0G/zQOpDVYaOb6S68EW7dz3exFHplj2hUxuSkfxC0AXC+5b9RmGrSIZXMq6X3k3rsZpg==$7uFwk3TggaWG1HcC07vcqQ==
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=aupNVFsam9suHywTj4TEpLut6JlglDKHZe95lv9F79Y-1715047114-1.0.1.1-ORTkUt9S0n0L6pQ_0ekx0UoCESdYFGodoIwb_Bh7eKnpr.JQlbxVhummHKYO6YuqDIxD6dgJw3OImMx0ye38Yw; path=/; expires=Tue, 07-May-24 02:28:34 GMT; domain=.quizlet.com; HttpOnly; Secure; SameSite=None
Vary: Accept-Encoding
Server: cloudflare
CF-RAY: 87fd9b137ff74288-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。quizlet.com 当前共有 29 项 DNS 记录。
主机 类型 IP/目标 生存时间 扩充信息
quizlet.comA299
quizlet.comA299
quizlet.comNS21600
quizlet.comNS21600
quizlet.comSOA617expire: 604800
serial: 2340072562
quizlet.comMX300pri: 10
quizlet.comMX300pri: 20
quizlet.comMX300pri: 30
quizlet.comMX300pri: 40
quizlet.comMX300pri: 50
quizlet.comMX300pri: 60
quizlet.comMX300pri: 70
quizlet.comTXT
24F3373645
300
quizlet.comTXT
6bc7fbl8y9h6lng2n9mfymp16dy63g5s
300
quizlet.comTXT
762642896-4167472
300
quizlet.comTXT
K6b3CtLBfcqpRDNJfg7WcyP9qg
300
quizlet.comTXT
MS=ms29141506
300
quizlet.comTXT
PAEZFEC4AVFC77KOVF1R0H57BRTMST936SZT1YXT
300
quizlet.comTXT
apple-domain-verification=GhqRH5BdB8mVkDUq
300
quizlet.comTXT
atlassian-domain-verification=plVFZkxuXPVmwzDvcpY5wv9jzzqQtxQtByhFAEdY+P7nj9p8snaZ075RZ/N1leeb
300
quizlet.comTXT
docusign=a6f2c83c-9542-4ba7-92e3-032b45a00375
300
quizlet.comTXT
facebook-domain-verification=pzag31nnjljvy81xhps4rggqtj46rq
300
quizlet.comTXT
google-site-verification=PcYdlWhBiUuqH6bY-OXWum37uIUh0oDXcViCvDjvkVA
300
quizlet.comTXT
google-site-verification=W5dcXTOxPUzVvjBMgdJzZSMSebqrWo0O6CBV0FN1dhY
300
quizlet.comTXT
hcp-domain-verification=0610f95c7b0e248dd930b7076e658fa93c1a08ccfa5f91e96b612919e6ef5807
300
quizlet.comTXT
onetrust-domain-verification=31c369ac7a3544d19c07ea059d09b5f3
300
quizlet.comTXT
onetrust-domain-verification=7316088ca8db44f78ca82d9e961f6442
300
quizlet.comTXT
openai-domain-verification=dv-5Nx1YJVH5ae1OqCzL1NiNOu0
300
quizlet.comTXT
v=spf1 include:spf.mtasv.net include:_spf.google.com include:sendgrid.net include:mail.zendesk.com include:_spf.salesforce.com ~all
300