cnacce.org.cn

https://cnacce.org.cn· First analyzed 01 Jun 2026· Updated 01 Jun 2026

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cnacce.org.cn

Mobile

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Hosting Provider

Aliyun Computing Co., LTD

IP Address

123.56.153.223

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Beijing, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

Nginx

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.3 MB

99 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Aliyun Computing Co., LTD

Technology Stack

5 Technologies Detected

Libraries

UI Components

CSS Frameworks

Web Servers

SEO Analysis

D47/100

Meta Tags5/15

Content10/12

Headings0/8

Technical15/25

E-E-A-T0/7

Images3/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

cnacce.org.cncnacce.org.cn

中国化工建设企业协会

网站由中国化工建设企业协会主办。

Title Length10 chars

Recommended: 50-60 chars (~62px / 580px)

Description Length16 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (59/59) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

240 URLs

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

6/100

Poor

2 13 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

F31/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

0/25

Citation

6/25

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:7%

Words:295

Token eff.:Too Short

Depth:1/5

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.

59/100

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

9/15

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.

23/100

412 mg

CO₂e / view

3.3 MB

Page Weight

30%

Cleaner Than

New Visitor

471 mg

Returning (cached)

235 mg

Annual (10K/mo)

49.4 kg

Emission Segments

Data Center

92 mg

Network

99 mg

Device

221 mg

Resource Breakdown

JavaScript

98.0 KB

Images

2.6 MB

CSS

590.0 KB

HTML

14.0 KB

Other

362 B

Green Hosting Not Verified

Aliyun Computing Co., LTD

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

34d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

TrustAsia Technologies, Inc.

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

07.04.2026

Valid Until

06.07.2026

Subject Alternative Names (2)

cnacce.org.cnwww.cnacce.org.cn

SHA-256 Fingerprint

56:C0:3C:FA:4E:56:E0:6C:FE:A1:DD:4A:1D:C7:D4:A7:45:7E:C4:FB...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

quic=":443"; h3=":443"; h3-29=":443"; h3-27=":443";h3-25=":4...

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Mon, 01 Jun 2026 21:31:46 GMT

server

nginx

strict-transport-security

max-age=31536000

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

cnacce.org.cn

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.

41/100

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, maximum-scale=1, minimum-scale=1, user-scalable=no

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

微软雅黑

WCAG Partial

55/100

Readability

/30

16/30

18px · LH 2.22

Hierarchy

/20

9/20

WCAG

/25

16/25

3.31:1 min contrast

Performance

/25

14/25

1 font

Heading Font

微软雅黑

Body Font

微软雅黑

Sans18px

Contrast Ratio

3.31:1

Below AA

Reading Comfort

Single Family

left aligned

18px

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Wide line spacing (2.22). 1.4–1.6 is optimal for body text.

⚠️ Partial contrast: 0 elements below WCAG AA threshold (min 3.3:1).

✅ 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

11 unique colors

Light

#00001d

Primary· 39.7%

#f6ce72

Accent· 9.7%

#8e0b11

Accent· 8.5%

#654029

Secondary· 6.8%

#b71a1b

Accent· 6.6%

#b24324

Accent· 6.3%

#dc9a56

Accent· 4.8%

#faedab

Accent· 4.7%

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Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)

Website Identity

cnacce.org.cn

Location detected: 🇨🇳 Chinavia tld

zh-CN

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Last analyzed: 01 Jun 2026 at 21:32

Historical Analysis & Change Tracking