WWW.3M.COM 网站分析
WWW.3M.COM 的 SEO 统计信息上次更新是在 60 天前。 我们已启动该网站的后台分析任务，请稍等几分钟。
基本信息
URL:
服务器:
未知
IP:
页面信息
标题:
3M Science. Applied to Life. 3M United States
Meta 关键词:
3M, innovation, technology, science, products, company
Meta 描述信息:
3M applies science and innovation to make a real impact by igniting progress and inspiring innovation in lives and communities across the globe.
H1 Tag:
Focusing on the front lines of COVID-19
内部链接:
231 (0 nofollow)
外部链接:
23 (0 nofollow)
建站技术
服务器:
未知
SSL 安全:
不可用
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.3m.com 的 HTTP header 信息:
HTTP/1.1 301 Moved Permanently
X-Frame-Options: SAMEORIGIN
Content-Security-Policy: frame-ancestors 'self';
Location: https://www.3m.com/
Content-Length: 227
Content-Type: text/html; charset=iso-8859-1
Cache-Control: max-age=14400
Expires: Sun, 31 May 2020 02:46:06 GMT
Date: Sat, 30 May 2020 22:46:06 GMT
Connection: keep-alive
HTTP/1.1 200 OK
X-Frame-Options: SAMEORIGIN
Content-Security-Policy: frame-ancestors 'self';
X-Powered-By: Servlet/3.1
Content-Encoding: gzip
Content-Length: 40369
Served-By: p-812
X-XSS-Protection: 1; mode=block
Content-Type: text/html; charset=UTF-8
Content-Language: en
Cache-Control: max-age=86400
Expires: Sun, 31 May 2020 22:46:15 GMT
Date: Sat, 30 May 2020 22:46:15 GMT
Connection: keep-alive
Vary: Accept-Encoding
X-Frame-Options: SAMEORIGIN
Content-Security-Policy: frame-ancestors 'self';
Location: https://www.3m.com/
Content-Length: 227
Content-Type: text/html; charset=iso-8859-1
Cache-Control: max-age=14400
Expires: Sun, 31 May 2020 02:46:06 GMT
Date: Sat, 30 May 2020 22:46:06 GMT
Connection: keep-alive
HTTP/1.1 200 OK
X-Frame-Options: SAMEORIGIN
Content-Security-Policy: frame-ancestors 'self';
X-Powered-By: Servlet/3.1
Content-Encoding: gzip
Content-Length: 40369
Served-By: p-812
X-XSS-Protection: 1; mode=block
Content-Type: text/html; charset=UTF-8
Content-Language: en
Cache-Control: max-age=86400
Expires: Sun, 31 May 2020 22:46:15 GMT
Date: Sat, 30 May 2020 22:46:15 GMT
Connection: keep-alive
Vary: Accept-Encoding
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。3m.com 当前共有 10 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| 3m.com | A | 86400 | ||
| 3m.com | NS | 86400 | ||
| 3m.com | NS | 86400 | ||
| 3m.com | SOA | 86400 | expire: 1209600 serial: 2017073518 | |
| 3m.com | MX | 3600 | pri: 10 | |
| 3m.com | MX | 3600 | pri: 10 | |
| 3m.com | TXT | facebook-domain-verification=k2inhxde42rbrf69avgc2g8ru1nkrz | 3600 | |
| 3m.com | TXT | v=spf1 include:%{d}.cd.spf-protect.dmp.cisco.com exists:%{i}._i.%{d}._d.espf.dmp.cisco.com ~all | 3600 | |
| 3m.com | TXT | google-site-verification=5jizbRgBVEqWtN4gVpAF1c99lyi-jqtTzp4m6xDY160 | 3600 | |
| 3m.com | TXT | google-site-verification=kZV1HQVTfYDnXRv2-lr9rWQ7w5pm8BDwR_oO66Jwu78
| 3600 |