changcheng-china.com

https://changcheng-china.com· First analyzed 25 May 2026· Updated 25 May 2026

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Mobile

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Hosting Provider

Chengdu west dimension digital technology Co., LTD

IP Address

211.149.230.164

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Haidian, China

ASN

AS38283

Organization

Chengdu west dimension digital technology Co., LTD

Server

wts/1.7.4

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

299 KB

4 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Chengdu west dimension digital technology Co., LTD

Technology Stack

1 Technologies Detected

Libraries

jQuery

SEO Analysis

F28/100

Meta Tags4/15

Content0/12

Headings0/8

Technical11/21

E-E-A-T0/7

Images1/7

Links0/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

changcheng-china.comchangcheng-china.com

长城电器

No description available for this page.

Title Length4 chars

Recommended: 50-60 chars (~24px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (4)

• Missing meta description — important for click-through rates in SERPs
• Very thin content (2 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

11 issues found

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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.

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AI & LLM Readiness

F23/100

Bot Access

20/25

Machine Read.

1/25

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

Text ratio:0%

Words:1

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

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.

51/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

6/20

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

Forms & Inputs

15/15

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.

3 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.

57/100

A+

37 mg

CO₂e / view

299.2 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

JavaScript

36.3 KB

CSS

261.8 KB

HTML

1.2 KB

Green Hosting Not Verified

Chengdu west dimension digital technology Co., LTD

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

76%Good

Static / Informational

HTTPS

No WAF

71d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.05.2026

Valid Until

04.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.changcheng-china.comchangcheng-china.com

SHA-256 Fingerprint

3C:89:7F:44:2D:3D:05:06:61:A2:29:0F:34:19:67:84:70:DE:53:14...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-length

908

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

date

Mon, 25 May 2026 03:45:47 GMT

server

wts/1.7.4

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

changcheng-china.com

Domain Age

10y 3m

Created

17.02.2016

Expires

17.02.2029

Last Updated

16.02.2026

Registrar

Alibaba Cloud Computing (Beijing) 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.

63/100

Mobile Friendly

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman

64/100

Readability

/30

21/30

16px · LH --

Hierarchy

/20

10/20

WCAG

/25

19/25

Performance

/25

14/25

1 font

Heading Font

Times New Roman

Body Font

Times New Roman

Serif16px

Contrast Ratio

Reading Comfort

Single Family

left aligned

16px

✅ Excellent readability: 16px body text is ideal for all devices.

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

8 unique colors

Light

#9c0003

Primary· 41.9%

#c00002

Accent· 27%

#e73321

Accent· 8.3%

#d77459

Accent· 6.2%

#efded9

Secondary· 5.5%

#b42a22

Accent· 2.6%

#7c0002

Accent· 2.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

zbmui(2)

Website Identity

changcheng-china.com

10 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.en

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Last analyzed: 25 May 2026 at 03:46

Historical Analysis & Change Tracking