WWW.GNU.ORG 网站分析

WWW.GNU.ORG 的 SEO 统计数据至少 60 天未更新。我们已针对该网站启动后台分析任务,请等待几分钟。

搜索引擎收录信息

必应:
谷歌:

页面信息

标题:
The GNU Operating System and the Free Software Movement
长度: 55 字符; 最佳长度: 10 ~ 60 字符
Meta 描述信息:
Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.
长度: 152 字符; 最佳长度: 50 ~ 160 字符
Meta 关键词:
GNU, FSF, Free Software Foundation, Linux, Emacs, GCC, Unix, Free Software, Libre Software, Operating System, GNU Kernel, GNU Hurd
长度: 130 字符; 最佳长度: 10 ~ 255 字符
H1标签:
长度: 0 字符; 最佳长度: 10 ~ 255 字符

Your page does not include an H1 tag.

The H1 tag in HTML is the main headline users see first when a page loads. It conveys the page's topic, enticing visitors to read further. H1 tags are crucial for SEO, user experience, and accessibility. They distinguish the main title on a webpage, aiding search engines and users in understanding the content.

Here are best practices for H1 tags

  • Use H1 tags for page titles.
  • Limit to one H1 tag per page.
  • Keep H1 tags short and concise.
  • Structure headings hierarchically.
  • Include your main keyword.
  • Ensure H1 tags are engaging.

建站技术

服务器:
Apache
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.gnu.org 的 HTTP header 信息:
HTTP/1.1 200 OK
Date: Thu, 29 May 2025 20:46:09 GMT
Server: Apache
Content-Location: home.html
Vary: negotiate,accept-language,Accept-Encoding
TCN: choice
Strict-Transport-Security: max-age=63072000
X-Frame-Options: sameorigin
X-Content-Type-Options: nosniff
Access-Control-Allow-Origin: (null)
Accept-Ranges: bytes
Cache-Control: max-age=0
Expires: Thu, 29 May 2025 20:46:09 GMT
Content-Encoding: gzip
Content-Length: 9707
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html
Content-Language: en

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。gnu.org 当前共有 9 项 DNS 记录。
主机 类型 IP/目标 生存时间 扩充信息
gnu.orgA877
gnu.orgNS1800
gnu.orgNS1800
gnu.orgNS1800
gnu.orgNS1800
gnu.orgSOA1800expire: 1209600
serial: 2024091203
gnu.orgMX264pri: 10
gnu.orgTXT
v=spf1 ip4:209.51.188.0/24 ip4:74.94.156.208/28 ip6:2001:470:142::/48 ip6:2603:3005:71a:2e00::/64 ~all
1800
gnu.orgAAAA
2001:470:142:5::116
1530