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lnu.edu.cn

https://lnu.edu.cn· First analyzed 01 May 2026· Updated 01 May 2026
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lnu.edu.cn
Desktop screenshot of lnu.edu.cn
Mobile screenshot of lnu.edu.cn
Mobile

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Hosting Provider

CERNET

IP Address

202.118.48.249

Site Location

🇨🇳 Chinavia tld

Server Location

🇨🇳 Haidian, China

ASN

AS4538

Server

*********

Nameservers

saint.synet.edu.cn.hstar.lnu.edu.cn.

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
45 KB
12 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
CERNET

SEO Analysis

F22/100
6
8
6
Meta Tags0/15
Content4/12
Headings0/8
Technical5/21
E-E-A-T0/7
Images1/7
Links0/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
L
lnu.edu.cnlnu.edu.cn

No Title Found

No description available for this page.

Title Length0 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (6)

  • • Missing page title — critical for SEO rankings and SERP display
  • • Missing meta description — important for click-through rates in SERPs
  • • Very thin content (2 words). Search engines need substantial content for ranking.

14 issues found

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Local SEO

Local Search Readiness

0/100
Poor
15 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

F22/100
Bot Access
20/25
Machine Read.
1/25
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
Text ratio:0%
Words:2
Token eff.:Too Short

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.
D
45/100
5
Passed
7
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
0/20
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
1/15
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.
61/100
A+
6 mg
CO₂e / view
45.4 KB
Page Weight
95%
Cleaner Than
New Visitor
6 mg
vs
Returning (cached)
3 mg
Annual (10K/mo)
672 g
Emission Segments
Data Center
1 mg
Network
1 mg
Device
3 mg
Resource Breakdown
Images
3.0 KB
CSS
41.1 KB
HTML
1.3 KB
Green Hosting Not Verified
CERNET
3 recommendations
  • •Carbon footprint recommendation preview...
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A+

Security Score

98%Excellent
Static / Informational

HTTPS

No WAF

248d

Certificate Details

Type

Organization Validated (OV)

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

04.12.2025

Valid Until

04.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.lnu.edu.cnlnu.edu.cn

SHA-256 Fingerprint

09:1A:06:E7:7F:D7:7E:A9:3B:FA:1E:73:FC:6E:61:66:BE:1F:E1:15...

Upgrade to view header details

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
1059
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (2)

mxbiz2.qq.com
mxbiz1.qq.com

Domain Information

lnu.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.
F
27/100
Not Mobile Friendly
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.
5 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman

WCAG AAA
67/100
Readability
/30
21/30

16px · LH --

Hierarchy
/20
8/20
WCAG
/25
24/25

10.86:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Body Font

Times New Roman

Serif16px

Contrast Ratio

10.86:1

WCAG AAA (≥7:1)

Reading Comfort

Single Family

left aligned

✅ Excellent readability: 16px body text is ideal for all devices.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 10.9:1).

✅ 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

5 unique colors
Light
#eff8ff
Primary· 88.19999999999999%
#bed9fe
Accent· 5.8%
#dceaff
Accent· 3.9%
#b2c5e2
Secondary· 1.1%
#edede7
Secondary· 0.9%

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Scripts & Styles

1 Resources

0
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

lnu.edu.cn

Location detected: 🇨🇳 Chinavia tld

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Last analyzed: 01 May 2026 at 15:05

Historical Analysis & Change Tracking