cndns.com

https://cndns.com· First analyzed 03 May 2026· Updated 03 May 2026

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cndns.com

Mobile

Sponsored

Hosting Provider

Shanghai Meicheng Technology Information Co., Ltd.

IP Address

210.16.185.251

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Pudong, China

ASN

AS4812

Organization

Shanghai Meicheng Technology Information Co., Ltd.

Server

Nginx

Nameservers

v1.dnsip.com.v2.dnsip.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

13.6 s10%

Speed Index

17.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

296 KB

50 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Shanghai Meicheng Technology Information Co., Ltd.

Technology Stack

6 Technologies Detected

CSS Frameworks

Tailwind CSS

Bootstrap

Libraries

jQueryv1.7.1

Advertising

Microsoft Advertising

Web Servers

Nginx

Customer Support

Zendesk

SEO Analysis

D56/100

Meta Tags13/15

Content12/12

Headings3/8

Technical12/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile2/4

Indexability3/3

cndns.comcndns.com

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Title Length42 chars

Recommended: 50-60 chars (~260px / 580px)

Description Length103 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (21/22) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,268 URLs

robots.txt

6 rules

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F38/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

0/25

Citation

5/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

def. lists

Text ratio:5%

Words:711

Token eff.:Optimal

Sections/1K:5.6

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary15w

Descriptive Headingsavg 1w

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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Sponsored

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.

36/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

4/20

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

Forms & Inputs

2/15

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

1/15

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

5 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.

42/100

A+

37 mg

CO₂e / view

296.2 KB

Page Weight

90%

Cleaner Than

New Visitor

42 mg

Returning (cached)

21 mg

Annual (10K/mo)

4.4 kg

Emission Segments

Data Center

8 mg

Network

9 mg

Device

20 mg

Resource Breakdown

Images

77.4 KB

CSS

97.6 KB

HTML

121.2 KB

Green Hosting Not Verified

Shanghai Meicheng Technology Information Co., Ltd.

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

296d

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/2

Valid From

24.02.2026

Valid Until

23.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.cndns.comcndns.com

SHA-256 Fingerprint

01:64:40:DC:1D:CD:7E:55:D8:34:0B:C9:4C:C6:52:2B:84:7D:4A:71...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🔴 No Cache(private, no-cache)

content-length

123772

content-type

text/html; charset=utf-8

date

Sun, 03 May 2026 14:02:44 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mx1.chengmail.cn

mx2.chengmail.cn

Domain Information

cndns.com

Domain Age

24 years

Created

05.05.2002

Expires

05.05.2028

Last Updated

16.05.2025

Registrar

Shanghai Meicheng Technology Information Development Co., Ltd.

DNSSEC

Not Enabled

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.

47/100

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.

Viewport

width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

-apple-system

WCAG Partial

56/100

Readability

/30

14/30

12px · LH 2.00

Hierarchy

/20

6/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

-apple-system

Sans

Body Font

-apple-system

Sans12px

Contrast Ratio

1:1

36 issues

Reading Comfort

~70 CPL

Optimal (45–75)

48px

18px

22px

12px

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

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~70 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 36 elements below WCAG AA threshold (min 1.0:1).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

11 unique colors

4.45:1 AA Large Dark

#767674

Other· 30.4%

#070606

Text· 5.8%

#be2b34

Primary· 8.9%

#cec2aa

Secondary· 5.1%

#633b3a

Secondary· 1.6%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js.cndns.com(6)bat.bing.com(4)picsum.idccenter.net(2)hm.baidu.com(1)clickcease.com(1)

Website Identity

cndns.com

24 years old

Location detected: 🇨🇳 Chinavia ip

Shanghai Meicheng Technology Information Development Co., Ltd.

Sponsored

Last analyzed: 03 May 2026 at 14:03

Historical Analysis & Change Tracking