zwcad.com

https://zwcad.com· First analyzed 25 May 2026· Updated 25 May 2026

Export

zwcad.com

Mobile

Sponsored

Hosting Provider

Alibaba Cloud

alibabacloud.com

IP Address

118.190.93.82

Site Location

🇨🇳 Chinavia ip

Server Location

🇨🇳 Qingdao, China

ASN

AS37963

Organization

Aliyun Computing Co., LTD

Server

Apache

Nameservers

dns9.hichina.com.dns10.hichina.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.6 s10%

Speed Index

3.4 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.7 MB

51 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Alibaba Cloud

Technology Stack

7 Technologies Detected

CSS Frameworks

Analytics

Libraries

UI Components

Web Servers

SEO Analysis

D52/100

Meta Tags13/15

Content8/12

Headings8/8

Technical10/25

E-E-A-T0/7

Images1/7

Links2/5

URL5/5

Social0/5

Freshness0/4

Mobile2/4

Indexability3/3

zwcad.comzwcad.com

中望CAD官网-自主研发的二三维CAD软件机械设计制图软件免费下载及初学入门教程

中望软件是可信赖的All-in-One CAx解决方案提供商,科创板上市企业,掌握二三维CAD、CAM、CAE核心技术及产品开发能力,产品有中望CAD,中望3D,中望电磁,中望结构仿真.提供建筑设计软件与机械设计制图软件

Title Length40 chars

Recommended: 50-60 chars (~248px / 580px)

Description Length110 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (12/18) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

70 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

F12/100

Bot Access

3/25

Machine Read.

8/25

Schema Data

0/25

Citation

1/25

AI Bot Access

0/14 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:5%

Words:474

Token eff.:Optimal

Sections/1K:54.9

Structured Data

No Schema

Citation Readiness

Opening Summary

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...

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.

50/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

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

1/15

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

5 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.

11/100

466 mg

CO₂e / view

3.7 MB

Page Weight

15%

Cleaner Than

New Visitor

533 mg

Returning (cached)

266 mg

Annual (10K/mo)

55.9 kg

Emission Segments

Data Center

104 mg

Network

112 mg

Device

250 mg

Resource Breakdown

JavaScript

72.8 KB

Images

3.3 MB

CSS

295.5 KB

HTML

17.1 KB

Green Hosting Not Verified

Alibaba Cloud

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

138d

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

26.03.2026

Valid Until

10.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.zwcad.comzwcad.com

SHA-256 Fingerprint

4D:AF:CB:16:8D:5A:CF:ED:2F:9A:4D:82:30:AE:52:39:54:78:0A:E1...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟣 Private(private)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

17161

content-type

text/html; charset=utf-8

date

Mon, 25 May 2026 00:23:26 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mxbiz1.qq.com

mxbiz2.qq.com

Domain Information

zwcad.com

Domain Age

24y 5m

Created

11.12.2001

Expires

11.12.2029

Last Updated

04.06.2020

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

50/100

Mobile Friendly3 breakpoints

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

initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width

4 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Microsoft Yahei

WCAG Partial

57/100

Readability

/30

18/30

14px · LH 1.71

Hierarchy

/20

10/20

2.57x ratio

WCAG

/25

14/25

1:1 min contrast

Performance

/25

15/25

1 font · 1 req

Heading Font

Microsoft Yahei

Sans36px

Body Font

Microsoft Yahei

Sans14px

Contrast Ratio

1:1

29 issues

Reading Comfort

~38 CPL

Narrow lines

36px

48px

28px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Partial contrast: 29 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

✅ 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

#ffffff

Background· 31.2%

#8adafd

Primary· 19%

#dcf6fe

Accent· 16%

#c3e9fb

Accent· 10.100000000000001%

#6acafc

Accent· 7.4%

#145eea

Accent· 5.8%

#4eb2f2

Accent· 3.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

zwcad.com(8)hm.baidu.com(1)app.jingsocial.com(1)googletagmanager.com(1)

Website Identity

zwcad.com

24 years old

Location detected: 🇨🇳 Chinavia ip

Alibaba Cloud Computing (Beijing) Co., Ltd.

Social Profiles

X (Twitter)

Sponsored

Last analyzed: 25 May 2026 at 00:23

Historical Analysis & Change Tracking