cust.edu.cn

https://cust.edu.cn· First analyzed 05 May 2026· Updated 05 May 2026

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cust.edu.cn

Mobile

Sponsored

Hosting Provider

CERNET

IP Address

210.47.0.168

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Haidian, China

ASN

AS4538

Server

Nginx

Nameservers

dns.cust.edu.cn.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.0 s10%

Speed Index

2.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

14.8 MB

47 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

CERNET

Technology Stack

4 Technologies Detected

Libraries

CSS Frameworks

Icon Libraries

Web Servers

SEO Analysis

D41/100

Meta Tags4/15

Content10/12

Headings1/8

Technical8/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

cust.edu.cncust.edu.cn

长春理工大学

No description available for this page.

Title Length6 chars

Recommended: 50-60 chars (~37px / 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 (15/20) — critical for accessibility and SEO

13 issues found

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Local SEO

Local Search Readiness

2/100

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

F31/100

Bot Access

20/25

Machine Read.

10/25

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:340

Token eff.:Optimal

Sections/1K:23.5

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.6w

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

10/20

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

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...

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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.

12/100

1.88 g

CO₂e / view

14.8 MB

Page Weight

Cleaner Than

New Visitor

2.14 g

Returning (cached)

1.07 g

Annual (10K/mo)

225.1 kg

Emission Segments

Data Center

419 mg

Network

450 mg

Device

1.01 g

Resource Breakdown

JavaScript

135.8 KB

Images

14.4 MB

CSS

195.1 KB

HTML

46.1 KB

Green Hosting Not Verified

CERNET

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

No WAF

75d

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/1.1

Valid From

18.06.2025

Valid Until

19.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.cust.edu.cncust.edu.cn

SHA-256 Fingerprint

8E:F2:C6:AD:5E:6C:3A:70:D3:F6:DC:04:FB:A7:4E:D5:1C:3F:8C:29...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

keep-alive

content-length

46879

content-type

text/html

date

Tue, 05 May 2026 17:12:50 GMT

etag

"69f56b01-b71f"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxbiz1.qq.com

mxbiz2.qq.com

Domain Information

cust.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.

52/100

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,minimum-scale=1.0, maximum-scale=1.0

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Microsoft YaHei + Constantia

WCAG Partial

52/100

Readability

/30

16/30

21px · LH 0.95

Hierarchy

/20

7/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

15/25

2 fonts · 1 req

Heading Font

Microsoft YaHei

Sans

Body Font

Constantia

Sans21px

Contrast Ratio

1:1

3 issues

Reading Comfort

Dual Sans-Serif

left aligned

30px

21px

✅ Excellent readability: 21px body text is ideal for all devices.

⚠️ Tight line spacing (0.95). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

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

✅ Lean font stack: 2 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

#8d0301

Accent· 22.1%

#fffffa

Primary· 13.200000000000001%

#0858b1

Primary· 12.9%

#e1471f

Accent· 8.3%

#c2240b

Accent· 7.9%

#dacbb9

Primary· 5.1%

#c18267

Secondary· 4.3%

#084173

Accent· 3.8%

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Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js(3)local(1)

Website Identity

cust.edu.cn

sec@cust.edu.cn

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 05 May 2026 at 17:13

Historical Analysis & Change Tracking