21cn.com favicon

21cn.com

https://21cn.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026
Export
21cn.com

Sponsored

Hosting Provider

IP Address

114.217.37.13

Server Location

🇨🇳 Suzhou, China

ASN

AS4134

Organization

Chinanet JS

Server

Nginx

Nameservers

vip4.alidns.com.vip3.alidns.com.

Performance

Page Speed

2 requests
0–49
50–89
90–100

Architecture Stack

Headless
⚙️ SSR
Decoupled
API
Data Source
Headless CMS
Strapi
Infrastructure
Hosting
Chinanet JS

Detected API Sources

https://ux.21cn.com/api/htmlRe...

Technology Stack

6 Technologies Detected

Libraries

1

CSS Frameworks

1

Web Servers

1

SEO Analysis

F38/100
5
5
2
2
21cn.com21cn.com

首页 | 天翼数字生活科技有限公司

No description available for this page.

Title Length17 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • Missing meta description - important for click-through rates
  • Missing H1 tag - every page should have one H1

Sponsored

Sponsored

F

Security Score

21%Critical
Interactive

HTTPS

No WAF

72d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

WoTrus CA Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

01.04.2025

Valid Until

02.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.dlife.cndlife.cn

SHA-256 Fingerprint

73:22:60:8B:75:D1:3A:B3:8A:4E:B4:DF:30:8D:38:B4:43:89:D0:B5...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

connection
keep-alive
content-length
239657
content-type
text/html; charset=utf-8
date
Thu, 19 Feb 2026 10:25:19 GMT
server
nginx
set-cookie
F82089F504F67EE2
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (1)

mta.21cn.com

Domain Information

21cn.com

Domain Age
27 years

Created

08.02.1999

Expires

08.02.2027

Last Updated

16.05.2025

Registrar

Xiamen 35.com Information Co., Ltd.

DNSSEC
Not Enabled

Typography & Readability

-apple-system

73/100
Readability
/30
40/40

20px · LH 1.50

Hierarchy
/20
8/25
WCAG
/25
15/15

Contrast: undefined

Performance
/25
20/20

System fonts

Heading Font

-apple-system

Sans

Body Font

-apple-system

Sans20px

Contrast Ratio

--

Reading Comfort

~69 CPL

Optimal (45–75)
20px
h2
20px
h3
20px
p
Minor Second
Scale

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Protected text on images: Using gradient for readability.

✅ Optimal line length: ~68 characters per line is comfortable to read.

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

22 Resources

19
Scripts
3
Styles
1
Async
5
Defer

Top Script Sources

local(10)dlife.cn(7)ux.21cn.com(2)

Sponsored

Last analyzed: 19 Feb 2026 at 10:25

Historical Analysis & Change Tracking