csu.edu.cn

https://csu.edu.cn· First analyzed 25 Apr 2026· Updated 25 Apr 2026

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csu.edu.cn

Mobile

Sponsored

Hosting Provider

Chinanet HN

IP Address

222.247.53.90

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Heshan, China

ASN

AS4134

Organization

Chinanet HN

Server

*********

Nameservers

csu-6.csu.edu.cn.csu-7.csu.edu.cn.csu-8.csu.edu.cn.

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%

29 MB

179 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Chinanet HN

Technology Stack

3 Technologies Detected

UI Components

Slick Carousel

CSS Frameworks

Tailwind CSS

Libraries

Animate.css

SEO Analysis

D42/100

Meta Tags4/15

Content12/12

Headings1/8

Technical10/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

csu.edu.cncsu.edu.cn

中南大学

No description available for this page.

Title Length4 chars

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

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (186/186) — critical for accessibility and SEO

14 issues found

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Local SEO

Local Search Readiness

5/100

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

F33/100

Bot Access

20/25

Machine Read.

8/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

def. lists

Text ratio:3%

Words:694

Token eff.:Optimal

Sections/1K:86.5

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary14w

Descriptive Headingsavg 1.1w

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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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.

62/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

7/20

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

6/15

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

4 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.

17/100

3.68 g

CO₂e / view

29.0 MB

Page Weight

Cleaner Than

New Visitor

4.20 g

Returning (cached)

2.10 g

Annual (10K/mo)

441.0 kg

Emission Segments

Data Center

821 mg

Network

882 mg

Device

1.97 g

Resource Breakdown

JavaScript

91.4 KB

Images

2.7 MB

CSS

26.2 MB

HTML

21.0 KB

Green Hosting Not Verified

Chinanet HN

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

No WAF

238d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

WoTrus CA Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

19.11.2025

Valid Until

19.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.csu.edu.cncsu.edu.cn

SHA-256 Fingerprint

83:BC:4B:8F:17:61:51:E3:35:94:34:74:FC:2E:7B:8B:40:A1:1E:01...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 600s(max-age=600)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-language

zh-CN

content-length

21233

Good Warning Issue

Domain Information

csu.edu.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.

54/100

Mobile Friendly8 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

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

BEBAS-REGULAR + SourceHanSerifCN-Regular

WCAG Partial

45/100

Readability

/30

22/30

20px · LH 1.50

Hierarchy

/20

6/20

WCAG

/25

8/25

1:1 min contrast

Performance

/25

9/25

4 fonts · 1 req

Heading Font

BEBAS-REGULAR

Sans

Body Font

SourceHanSerifCN-Regular

Serif20px

Contrast Ratio

1:1

25 issues

Reading Comfort

~39 CPL

Narrow lines

57px

24px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

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

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

Buy on MyFonts

Color Palette

10 unique colors

Light

#bc0c06

Accent· 35.699999999999996%

#024996

Primary· 10.2%

#db0914

Accent· 9.100000000000001%

#b08e7c

Secondary· 7.4%

#efdcc6

Accent· 6.4%

#cc231f

Accent· 5.5%

#7b5c67

Secondary· 4.5%

#662e49

Secondary· 1.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)jsindex(7)_sitegray(1)

Website Identity

csu.edu.cn

homepage@csu.edu.cn

Location detected: 🇨🇳 Chinavia tld

zh-CN

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Last analyzed: 25 Apr 2026 at 10:05

Historical Analysis & Change Tracking