d.cn

https://d.cn· First analyzed 05 May 2026· Updated 05 May 2026

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d.cn

Mobile

Sponsored

Hosting Provider

Beijing Teletron Telecom Engineering Co., Ltd.

IP Address

115.182.198.115

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Chaowai, China

ASN

AS4847

Organization

Beijing Teletron Telecom Engineering Co., Ltd.

Server

Apache

Nameservers

ns5.d.cn.ns1.d.cn.ns3.d.cn.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.8 s10%

Speed Index

3.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

43 KB

34 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Beijing Teletron Telecom Engineering Co., Ltd.

Technology Stack

5 Technologies Detected

Frameworks

Libraries

UI Components

CSS Frameworks

Web Servers

SEO Analysis

D44/100

Meta Tags5/15

Content10/12

Headings3/8

Technical8/25

E-E-A-T0/7

Images2/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

d.cnd.cn

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手游，从当乐开始。为玩家提供海量新款游戏免费下载畅玩；专业的游戏评分点评与排行榜；丰富的游戏攻略资讯内容。

Title Length18 chars

Recommended: 50-60 chars (~109px / 580px)

Description Length53 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (213/214) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

13 issues found

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Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

Local SEO

Local Search Readiness

5/100

Poor

2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F32/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

2/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:1%

Words:423

Token eff.:Optimal

Sections/1K:28.4

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary11w

Descriptive Headingsavg 1.3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

73/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

10/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

9/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

62/100

A+

5 mg

CO₂e / view

43.4 KB

Page Weight

95%

Cleaner Than

New Visitor

6 mg

Returning (cached)

3 mg

Annual (10K/mo)

648 g

Emission Segments

Data Center

1 mg

Network

1 mg

Device

3 mg

Resource Breakdown

HTML

43.4 KB

Green Hosting Not Verified

Beijing Teletron Telecom Engineering Co., Ltd.

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

No WAF

284d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

22.01.2026

Valid Until

13.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.d.cnd.cn

SHA-256 Fingerprint

EF:20:D4:F4:75:66:08:64:36:54:F7:3E:92:DA:4A:E1:7C:A0:17:9D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

44151

content-type

text/html; charset=UTF-8

date

Tue, 05 May 2026 22:42:22 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

d.cn

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

36/100

Not Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Microsoft YaHei

WCAG Partial

43/100

Readability

/30

7/30

12px · LH 1.20

Hierarchy

/20

8/20

WCAG

/25

14/25

2.41:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Microsoft YaHei

Sans

Body Font

Microsoft YaHei

Sans12px

Contrast Ratio

2.41:1

7 issues

Reading Comfort

~153 CPL

Too wide

22px

21px

22px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

❌ Very long lines: ~153 chars/line causes eye strain. Add max-width constraint.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 2.4:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFonts

Color Palette

11 unique colors

15.62:1 AAA Light

#ffffff

Background· 27.5%

#242327

Text· 14.6%

#392f31

Primary· 12.4%

#a18f86

Secondary· 6%

#6b5756

Secondary· 5.6%

#160d0e

Secondary· 4.9%

#572e2c

Secondary· 4.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

raw.d.cn(5)hm.baidu.com(1)

Website Identity

d.cn

jubao@downjoy.com

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 05 May 2026 at 22:43

Historical Analysis & Change Tracking