WWW.COSTAR.COM 網站分析
WWW.COSTAR.COM 的 SEO 統計資料已至少 60 天沒有更新。我們已啟動網站的後台分析任務，請稍等幾分鐘。
基本信息
服務器:
未知
IP:
頁面信息
標題:
CoStar | # 1 Commercial Real Estate Information Company
Meta 關鍵詞:
Competitors for Reis, Accruent, Number one real estate firm.
Top Real estate firm
Meta 描述信息:
CoStar, the world leader in commercial real estate information, has the most comprehensive database of real estate data throughout the US, Canada, UK and France.
H1 Tag:
The knowledge marketTM
內部鏈接:
97 (0 nofollow)
外部鏈接:
17 (0 nofollow)
建站技術
服務器:
未知
SSL 安全:
不可用
robots.txt:
不可用
XML 站點地圖:
不可用
Gzip 壓縮:
有效
favicon.ico:
不可用
HTTP Head 分析
HTTP 協議採用了請求與響應模型，通過HTTP Header 定義了HTTP 傳輸過程中的必要參數。瀏覽器（例如Internet Explorer, Google Chrome, Firefox 等）並不會顯示HTTP header 字段的內容，下面是網站www.costar.com 的HTTP header 信息:
HTTP/1.1 301 Moved Permanently
Server: AkamaiGHost
Content-Length: 0
Location: https://www.costar.com/
Date: Mon, 01 Jun 2020 20:59:33 GMT
Connection: keep-alive
HTTP/1.1 200 OK
X-Powered-By: Next.js
ETag: "1e1eea-5VKnK/94o4d3C34xseRhGhce/28"
Content-Type: text/html; charset=utf-8
Vary: Accept-Encoding
Content-Encoding: gzip
Date: Mon, 01 Jun 2020 20:59:35 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Connection: Transfer-Encoding
Server: AkamaiGHost
Content-Length: 0
Location: https://www.costar.com/
Date: Mon, 01 Jun 2020 20:59:33 GMT
Connection: keep-alive
HTTP/1.1 200 OK
X-Powered-By: Next.js
ETag: "1e1eea-5VKnK/94o4d3C34xseRhGhce/28"
Content-Type: text/html; charset=utf-8
Vary: Accept-Encoding
Content-Encoding: gzip
Date: Mon, 01 Jun 2020 20:59:35 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Connection: Transfer-Encoding
DNS 記錄分析
DNS 域名系統（Domain Name System，縮寫）是Internet 的一項基礎服務。它作為將域名和 IP 位址相互映射的一個分佈式數據庫，能夠使人更方便的訪問互聯網。 costar.com 當前共有 11 項 DNS 記錄。
| 主機 | 類型 | IP/目標 | TTL | 擴充資訊 |
|---|---|---|---|---|
| costar.com | A | 30 | ||
| costar.com | MX | 556 | pri: 10 | |
| costar.com | MX | 556 | pri: 20 | |
| costar.com | MX | 556 | pri: 20 | |
| costar.com | MX | 556 | pri: 10 | |
| costar.com | NS | 556 | ||
| costar.com | NS | 556 | ||
| costar.com | SOA | 556 | expire: 604800 serial: 2009053885 | |
| costar.com | TXT | google-site-verification=2MlwRZ3OLoBXvFTfO4sxBIjRuPCdBSO-ka2TkUKDtjk | 16 | |
| costar.com | TXT | v=spf1 ip4:204.253.48.0/24 ip4:65.222.180.0/24 ip4:65.222.181.0/24 ip4:65.210.23.128/25 ip4:204.253.48.128/25 include:spf.mandrillapp.com ~all | 16 | |
| costar.com | TXT | MS=ms77657212 | 16 |