OS.51CTO.COM Website Review

The SEO statistics for OS.51CTO.COM have not been updated for at least 60 days. We have initiated a background analysis task for this website, please wait a few minutes.

Pages Indexed

Bing:
Google:

Page Information

Title:
系统-51CTO.COM-中国知名的数字化人才学习平台和技术社区
Length: 32 character(s); Best length: 10 ~ 60 character(s)
Meta description:
51CTO-系统话题为个人用户和系统管理员提供技术指导与应用实践,内容包括个人级和企业级Windows、Linux、HarmonyOS、MacOS以及其他系统的新鲜资讯,和系统管理相关的技术文章,并对下一代系统平台进行前瞻性的探讨。
Length: 116 character(s); Best length: 50 ~ 160 character(s)
Meta keywords:
系统,Windows,Linux,OpenHarmony,MacOS,其他OS,浏览器,51CTO
Length: 49 character(s); Best length: 10 ~ 255 character(s)
H1 Tag:
系统
Length: 2 character(s); Best length: 10 ~ 255 character(s)

The length of your H1 tag seems to be outside the recommended range. Ideally, an H1 tag should be between 10 and 255 characters, including spaces, and remember to use only one H1 tag per page.

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.

Site Technology

Server:
TencentEdgeOne
SSL Secure:
Available
robots.txt:
Unavailable
XML Sitemap:
Unavailable
Gzip Compress:
Available
favicon.ico:
Unavailable

HTTP Header Analysis

HTTP header fields are components of the message header of requests and responses in the Hypertext Transfer Protocol (HTTP). They define the operating parameters of an HTTP transaction. The header fields are not directly displayed by normal web browsers like Internet Explorer, Google Chrome, Firefox etc. Below is the HTTP Header information of os.51cto.com:
HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
x-page-cache: hit
ETag: "2ea60-ZcNcPzUtIyFVXof+o2xNXI0G9s0"
Accept-Ranges: none
Vary: Accept-Encoding
Content-Encoding: gzip
Strict-Transport-Security: max-age=15724800; includeSubDomains
Origin-Agent-Cluster: ?0
Server: TencentEdgeOne
Transfer-Encoding: chunked
Connection: keep-alive
Date: Wed, 15 Jan 2025 06:14:21 GMT
EO-LOG-UUID: 11624859685605353546
EO-Cache-Status: MISS

DNS Record Analysis

Domain Name Systes (DNS) translates easily memorized domain names to the numerical IP addresses needed for the purpose of locating computer services and devices worldwide. There are total 6 DNS record(s) of 51cto.com.
Host Type IP/Target TTL Extra Infomation
51cto.comA60
51cto.comNS21600
51cto.comNS21600
51cto.comSOA600expire: 86400
serial: 2025011007
51cto.comMX600pri: 5
51cto.comMX600pri: 10