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zngfj.cn

https://zngfj.cn· First analyzed 16 May 2026· Updated 16 May 2026
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zngfj.cn
Desktop screenshot of zngfj.cn
Mobile screenshot of zngfj.cn
Mobile

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Hosting Provider

Alibaba Cloud
alibabacloud.com

IP Address

106.15.200.158

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Shanghai, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

Microsoft IIS

Nameservers

ns13.xincache.com.ns14.xincache.com.

Performance

75

Core Web Vitals

Weight

First Contentful Paint
3.2 s10%
Speed Index
4.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.4 MB
46 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Alibaba Cloud

Technology Stack

5 Technologies Detected

Libraries

1
jQueryv2.1.1

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Microsoft IISv7.5

Frameworks

1
ASP.NET

SEO Analysis

D47/100
11
11
1
Meta Tags7/15
Content8/12
Headings6/8
Technical8/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
Z
zngfj.cnzngfj.cn

离心风机_轴流风机_锅炉风机_江苏中南鼓风机

江苏中南鼓风机有限公司集风机设计,销售,安装为一体的风机企业,主要生产离心风机,轴流风机,锅炉风机,高压风机等，咨询热线:0513-85564429.

Title Length22 chars

Recommended: 50-60 chars (~136px / 580px)

Description Length75 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (18/26) — critical for accessibility and SEO

12 issues found

Upgrade to view details

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

F24/100
Bot Access
20/25
Machine Read.
3/25
Schema Data
0/25
Citation
1/25

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
def. lists
Text ratio:6%
Words:134
Token eff.:Too Short
Sections/1K:67.2
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
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...
Upgrade to view recommendations

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.
D
49/100
5
Passed
8
Critical
0
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
7/15
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...
Upgrade to view recommendations

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.
14/100
F
436 mg
CO₂e / view
3.4 MB
Page Weight
15%
Cleaner Than
New Visitor
499 mg
vs
Returning (cached)
249 mg
Annual (10K/mo)
52.4 kg
Emission Segments
Data Center
98 mg
Network
105 mg
Device
234 mg
Resource Breakdown
JavaScript
54.3 KB
Images
2.8 MB
CSS
580.8 KB
HTML
8.7 KB
Green Hosting Not Verified
Alibaba Cloud
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

278d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

20.01.2026

Valid Until

18.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

zngfj.cnwww.zngfj.cn

SHA-256 Fingerprint

62:1B:79:17:2B:82:9B:E4:D4:4B:66:2B:35:60:83:18:9E:73:9E:C5...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟣 Private(private)
content-encoding
📦 Gzip(gzip)
content-length
8647
content-type
text/html
date
Sat, 16 May 2026 06:36:22 GMT
server
Microsoft-IIS/7.5
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

zngfj.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.
D
49/100
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, maximum-scale=1.0, user-scalable=no
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

arial + 微软雅黑

WCAG Partial
60/100
Readability
/30
11/30

13px · LH 1.85

Hierarchy
/20
15/20

2.08x ratio

WCAG
/25
14/25

1:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

arial

Sans27px

Body Font

微软雅黑

Sans13px

Contrast Ratio

1:1

25 issues

Reading Comfort

~76 CPL

Wide lines
27px
h1
15px
h2
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Wide line spacing (1.85). 1.4–1.6 is optimal for body text.

⚠️ Wide lines: ~76 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Partial contrast: 25 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

Color Palette

13 unique colors
19.43:1 AAA Light
#ffffff
Background· 29.4%
#0d0d0e
Text· 5.3%
#af9b9a
Primary· 4.6%
#e8e2db
Secondary· 4.5%
#863131
Secondary· 4.4%

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Scripts & Styles

11 Resources

5
Scripts
6
Styles
0
Async
0
Defer

Top Script Sources

statics(3)goutong.baidu.com(1)hm.baidu.com(1)

Website Identity

zngfj.cn

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 16 May 2026 at 06:37

Historical Analysis & Change Tracking