NOV.COM 网站分析
NOV.COM 的 SEO 统计数据尚未分析。 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
页面信息
标题:
National Oilwell Varco
Meta 关键词:
未知
Meta 描述信息:
National Oilwell Varco provides oilfield equipment, technologies, and expertise that answer the challenges of oil and gas customers worldwide with safety, efficiency, and reliability.
H1 Tag:
NOV launches Tektonic Pursuit series drill bits for US market
内部链接:
31 (0 nofollow)
外部链接:
46 (0 nofollow)
建站技术
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 nov.com 的 HTTP header 信息:
HTTP/1.1 301 Moved Permanently
Date: Mon, 22 Jun 2020 00:21:26 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=d0f607bc9d81b03c270264a032bdf5fca1592785286; expires=Wed, 22-Jul-20 00:21:26 GMT; path=/; domain=.nov.com; HttpOnly; SameSite=Lax; Secure
Location: http://www.nov.com/
Set-Cookie: ARRAffinity=fa793ecf47bb1b7cde1849345f3b0778907331469cbfdf829c988057fef26b16;Path=/;HttpOnly;Domain=nov.com
CF-Cache-Status: DYNAMIC
cf-request-id: 037affcc4c0000e6d4599b0200000001
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Server: cloudflare
CF-RAY: 5a71cf26eb04e6d4-EWR
HTTP/1.1 301 Moved Permanently
Date: Mon, 22 Jun 2020 00:21:26 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Cache-Control: max-age=3600
Expires: Mon, 22 Jun 2020 01:21:26 GMT
Location: https://www.nov.com/
cf-request-id: 037affce4c0000f041b9915200000001
Vary: Accept-Encoding
Server: cloudflare
CF-RAY: 5a71cf2a1acbf041-EWR
HTTP/1.1 200 OK
Date: Mon, 22 Jun 2020 00:21:27 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=da33f3bd4e5ac3072c749238fa16a7dfe1592785286; expires=Wed, 22-Jul-20 00:21:26 GMT; path=/; domain=.nov.com; HttpOnly; SameSite=Lax; Secure
Cache-Control: no-cache, no-store
Pragma: no-cache
Expires: -1
Vary: Accept-Encoding
Set-Cookie: __RequestVerificationToken=9CxKhu5HLG9AXlRuT6vlTC__L0sENZc3rwMqCA4Eb2WKl1xjuJ0xzDoRsyXdLUxndRvEdw_gwWNq0l6jyCB7RTczFfRg9JlxdRwyy2W6PZY1; path=/; HttpOnly
X-Frame-Options: SAMEORIGIN
Request-Context: appId=cid-v1:ce9e2202-1d95-4192-a907-240d12f611fd
Set-Cookie: ARRAffinity=fa793ecf47bb1b7cde1849345f3b0778907331469cbfdf829c988057fef26b16;Path=/;HttpOnly;Domain=www.nov.com
CF-Cache-Status: DYNAMIC
cf-request-id: 037affcf360000e724cf95a200000001
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Server: cloudflare
CF-RAY: 5a71cf2b8f43e724-EWR
Content-Encoding: gzip
Date: Mon, 22 Jun 2020 00:21:26 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=d0f607bc9d81b03c270264a032bdf5fca1592785286; expires=Wed, 22-Jul-20 00:21:26 GMT; path=/; domain=.nov.com; HttpOnly; SameSite=Lax; Secure
Location: http://www.nov.com/
Set-Cookie: ARRAffinity=fa793ecf47bb1b7cde1849345f3b0778907331469cbfdf829c988057fef26b16;Path=/;HttpOnly;Domain=nov.com
CF-Cache-Status: DYNAMIC
cf-request-id: 037affcc4c0000e6d4599b0200000001
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Server: cloudflare
CF-RAY: 5a71cf26eb04e6d4-EWR
HTTP/1.1 301 Moved Permanently
Date: Mon, 22 Jun 2020 00:21:26 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Cache-Control: max-age=3600
Expires: Mon, 22 Jun 2020 01:21:26 GMT
Location: https://www.nov.com/
cf-request-id: 037affce4c0000f041b9915200000001
Vary: Accept-Encoding
Server: cloudflare
CF-RAY: 5a71cf2a1acbf041-EWR
HTTP/1.1 200 OK
Date: Mon, 22 Jun 2020 00:21:27 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: __cfduid=da33f3bd4e5ac3072c749238fa16a7dfe1592785286; expires=Wed, 22-Jul-20 00:21:26 GMT; path=/; domain=.nov.com; HttpOnly; SameSite=Lax; Secure
Cache-Control: no-cache, no-store
Pragma: no-cache
Expires: -1
Vary: Accept-Encoding
Set-Cookie: __RequestVerificationToken=9CxKhu5HLG9AXlRuT6vlTC__L0sENZc3rwMqCA4Eb2WKl1xjuJ0xzDoRsyXdLUxndRvEdw_gwWNq0l6jyCB7RTczFfRg9JlxdRwyy2W6PZY1; path=/; HttpOnly
X-Frame-Options: SAMEORIGIN
Request-Context: appId=cid-v1:ce9e2202-1d95-4192-a907-240d12f611fd
Set-Cookie: ARRAffinity=fa793ecf47bb1b7cde1849345f3b0778907331469cbfdf829c988057fef26b16;Path=/;HttpOnly;Domain=www.nov.com
CF-Cache-Status: DYNAMIC
cf-request-id: 037affcf360000e724cf95a200000001
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Server: cloudflare
CF-RAY: 5a71cf2b8f43e724-EWR
Content-Encoding: gzip
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。nov.com 当前共有 10 项 DNS 记录。
| 主机 | 类型 | IP/目标 | TTL | 扩充信息 |
|---|---|---|---|---|
| nov.com | A | 3600 | ||
| nov.com | MX | 3600 | pri: 0 | |
| nov.com | MX | 3600 | pri: 0 | |
| nov.com | NS | 28799 | ||
| nov.com | NS | 28799 | ||
| nov.com | NS | 28799 | ||
| nov.com | NS | 28799 | ||
| nov.com | SOA | 28800 | expire: 2419200 serial: 304709680 | |
| nov.com | TXT | q4ZeBsXPmyeoes8JbDQES8Zcnx9ZlClEsF0jkOVjvViKyqel4hoHFPCz52gLrgnGZufxi6/6kHQ6zdQH5BybCA== | 28800 | |
| nov.com | TXT | v=spf1 a mx ptr include:spf-001b7901.pphosted.com include:icpbounce.com ~all | 28800 |