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。
基本信息
URL:
服务器:
Apache
IP:
城市:
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.
外部链接:
30 (0 nofollow)
内部链接:
71 (1 nofollow)
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
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.org | A | 877 | ||
gnu.org | NS | 1800 | ||
gnu.org | NS | 1800 | ||
gnu.org | NS | 1800 | ||
gnu.org | NS | 1800 | ||
gnu.org | SOA | 1800 | expire: 1209600 serial: 2024091203 | |
gnu.org | MX | 264 | pri: 10 | |
gnu.org | TXT | 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.org | AAAA | 2001:470:142:5::116 | 1530 |