DEVELOPER.51CTO.COM Website Review
Basic Information
Site Title:
Server:
TencentEdgeOne
IP:
City:
Page Information
Title:
开发-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-向开发者分享前端开发、后端开发、游戏开发、测试开发、开发工具、中台与架构、VR与AR等相关软件开发的技术资讯与实践案例。
Length: 66 character(s); Best length: 50 ~ 160 character(s)
Meta keywords:
开发,前端,后端,游戏开发,项目管理,开发工具,测试,架构,中台,VR/AR,51CTO
Length: 44 character(s); Best length: 10 ~ 255 character(s)
H1 Tag:
开发
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.
External links:
178 (0 nofollow)
Internal links:
90 (0 nofollow)
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 developer.51cto.com:
HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
x-page-cache: hit
ETag: "3000b-01UMgtaZ44GuHHUfj/hAB9Wf5OE"
Accept-Ranges: none
Vary: Accept-Encoding
Content-Encoding: gzip
Origin-Agent-Cluster: ?0
Server: TencentEdgeOne
Transfer-Encoding: chunked
Connection: keep-alive
Date: Fri, 16 May 2025 22:03:13 GMT
EO-LOG-UUID: 12448435631577772488
EO-Cache-Status: MISS
Content-Type: text/html; charset=utf-8
x-page-cache: hit
ETag: "3000b-01UMgtaZ44GuHHUfj/hAB9Wf5OE"
Accept-Ranges: none
Vary: Accept-Encoding
Content-Encoding: gzip
Origin-Agent-Cluster: ?0
Server: TencentEdgeOne
Transfer-Encoding: chunked
Connection: keep-alive
Date: Fri, 16 May 2025 22:03:13 GMT
EO-LOG-UUID: 12448435631577772488
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.com | A | 60 | ||
51cto.com | NS | 21600 | ||
51cto.com | NS | 21600 | ||
51cto.com | SOA | 600 | expire: 86400 serial: 2025050607 | |
51cto.com | MX | 600 | pri: 10 | |
51cto.com | MX | 600 | pri: 5 |