WWW.CITYOFCHICAGO.ORG 网站分析
WWW.CITYOFCHICAGO.ORG 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
网站标题:
服务器:
未知
IP:
页面信息
标题:
City of Chicago
Meta 关键词:
City of Chicago; government; services;
Meta 描述信息:
Welcome to the official City of Chicago Website. The source for information about City services, departments, programs and initiatives, and officials for Chicago residents, businesses, and visitors.
H1 Tag:
Chicago
内部链接:
157 (0 nofollow)
外部链接:
32 (0 nofollow)
建站技术
服务器:
未知
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.cityofchicago.org 的 HTTP header 信息:
HTTP/1.1 301 Moved Permanently
Server: Apache
Location: https://www.chicago.gov/
Content-Length: 232
Content-Type: text/html; charset=iso-8859-1
Date: Tue, 09 Jun 2020 18:47:32 GMT
Connection: keep-alive
Set-Cookie: BIGipServerwww-external-443.app~www-external-443_pool=1712480266.15168.0000; Secure; HttpOnly; path=/; Httponly; Secure
HTTP/1.1 302 Moved Temporarily
Server: Apache
Location: https://www.chicago.gov/city/en.html
Content-Length: 220
Content-Type: text/html; charset=iso-8859-1
Date: Tue, 09 Jun 2020 18:47:32 GMT
Connection: keep-alive
Set-Cookie: BIGipServerwww-external-443.app~www-external-443_pool=1712480266.15168.0000; Secure; HttpOnly; path=/; Httponly; Secure
HTTP/1.1 200 OK
Server: Apache
Last-Modified: Tue, 09 Jun 2020 18:41:49 GMT
ETag: "16206-5a7ab1490afa6"
Accept-Ranges: bytes
Content-Type: text/html
Content-Encoding: gzip
Content-Length: 22385
Date: Tue, 09 Jun 2020 18:47:32 GMT
Connection: keep-alive
Vary: Accept-Encoding
Server: Apache
Location: https://www.chicago.gov/
Content-Length: 232
Content-Type: text/html; charset=iso-8859-1
Date: Tue, 09 Jun 2020 18:47:32 GMT
Connection: keep-alive
Set-Cookie: BIGipServerwww-external-443.app~www-external-443_pool=1712480266.15168.0000; Secure; HttpOnly; path=/; Httponly; Secure
HTTP/1.1 302 Moved Temporarily
Server: Apache
Location: https://www.chicago.gov/city/en.html
Content-Length: 220
Content-Type: text/html; charset=iso-8859-1
Date: Tue, 09 Jun 2020 18:47:32 GMT
Connection: keep-alive
Set-Cookie: BIGipServerwww-external-443.app~www-external-443_pool=1712480266.15168.0000; Secure; HttpOnly; path=/; Httponly; Secure
HTTP/1.1 200 OK
Server: Apache
Last-Modified: Tue, 09 Jun 2020 18:41:49 GMT
ETag: "16206-5a7ab1490afa6"
Accept-Ranges: bytes
Content-Type: text/html
Content-Encoding: gzip
Content-Length: 22385
Date: Tue, 09 Jun 2020 18:47:32 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。cityofchicago.org 当前共有 8 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| cityofchicago.org | A | 290 | ||
| cityofchicago.org | MX | 2690 | pri: 1 | |
| cityofchicago.org | NS | 2689 | ||
| cityofchicago.org | NS | 2689 | ||
| cityofchicago.org | SOA | 2690 | expire: 2419200 serial: 2014082816 | |
| cityofchicago.org | TXT | hoqahslQp3Jc7Aie4V2C5GrBAw6CpYYuVhFPxT0ZZJWgw4yAyPRjHlYEXUawfYouRxbsa/NxlL56XF2ezgnFsA== | 2690 | |
| cityofchicago.org | TXT | MS=ms42423307 | 2690 | |
| cityofchicago.org | TXT | v=spf1 ip4:167.165.0.0/16 ip4:216.125.147.0/24 include:spf.protection.outlook.com ~all | 2690 |