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sejong.ac.kr

https://sejong.ac.kr· First analyzed 03 May 2026· Updated 03 May 2026
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sejong.ac.kr
Desktop screenshot of sejong.ac.kr
Mobile screenshot of sejong.ac.kr
Mobile

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Hosting Provider

IP Address

210.107.239.136

Site Location

🇰🇷 South Koreavia tld

Server Location

🇰🇷 Guri-si, South Korea

ASN

AS9769

Organization

KISTI

Server

Apache

Nameservers

ns.sejong.ac.kr.ns2.sejong.ac.kr.

Performance

73

Core Web Vitals

Weight

First Contentful Paint
6.7 s10%
Speed Index
8.7 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
12.4 MB
160 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
KISTI

Technology Stack

8 Technologies Detected

SEO Analysis

C62/100
18
8
1
Meta Tags5/15
Content12/12
Headings3/8
Technical18/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sejong.ac.krsejong.ac.kr

세종대학교

세종대학교 대표 홈페이지

Title Length5 chars

Recommended: 50-60 chars (~31px / 580px)

Description Length13 chars

Recommended: 120-160 chars

Issues (1)

  • Missing H1 tag — every page should have exactly one H1

Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

41 rules

Local SEO

Local Search Readiness

11/100
Poor
4 12 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

F34/100
Bot Access
16/25
Machine Read.
6/25
Schema Data
0/25
Citation
12/25

AI Bot Access

8/14 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:15%
Words:10,451
Token eff.:Excessive
Sections/1K:0.1

Structured Data

No Schema

Citation Readiness

Opening Summary12w
Descriptive Headingsavg 4w
Canonical URL
Open Graph2/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
A
88/100
14
Passed
1
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • Accessibility recommendation preview...

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.
21/100
F
1.57 g
CO₂e / view
12.4 MB
Page Weight
5%
Cleaner Than
New Visitor
1.79 g
vs
Returning (cached)
895 mg
Annual (10K/mo)
188.0 kg
Emission Segments
Data Center
350 mg
Network
376 mg
Device
841 mg
Resource Breakdown
JavaScript
460.5 KB
Images
8.5 MB
CSS
3.3 MB
HTML
73.2 KB
Other
523 B
Green Hosting Not Verified
KISTI
7 recommendations
  • Carbon footprint recommendation preview...
D

Security Score

41%Poor
Interactive

HTTPS

No WAF

191d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

31.10.2025

Valid Until

10.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.sejong.ac.krsejong.ac.kr

SHA-256 Fingerprint

5B:B0:85:5E:51:EE:E2:DB:B9:6D:B1:3B:63:76:58:12:93:90:54:2E...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

cms-container
db5ac412ad9530e1
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-language
ko
content-security-policy
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

45

SPF
DKIM
DMARC

MX Records (1)

sniper.sejong.ac.kr

Domain Information

sejong.ac.kr

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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
50/100
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,viewport-fit=cover,minimum-scale=1.0,maximum-scale=1.0,user-scalable=yes
3 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

Pretendard

WCAG Partial
68/100
Readability
/30
23/30

16px · LH 1.50

Hierarchy
/20
18/20

2x ratio · ✓ H1→H6

WCAG
/25
14/25

1:1 min contrast

Performance
/25
13/25

2 fonts · 4 req

Heading Font

Pretendard

Sans32px

Body Font

Pretendard

Sans16px

Contrast Ratio

1:1

2 issues

Reading Comfort

~39 CPL

Narrow lines
32px
h1
72px
h2
24px
h3
16px
p
Perfect Fourth
Scale

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

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

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

Color Palette

10 unique colors
14.23:1 AAA Dark
#000000
Text· 87.70000000000002%
#d6d4d4
Other· 0.8%
#c50726
Primary· 5.1%
#191c1f
Secondary· 1.7%
#a18d90
Secondary· 1.3%
#a26069
Secondary· 0.8%
#260006
Accent· 0.6%
#a7081c
Accent· 0.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
1
Async
18
Defer

Top Script Sources

local(17)cdn.jsdelivr.net(2)googletagmanager.com(1)

Website Identity

sejong.ac.kr

Location detected: 🇰🇷 South Koreavia tld
ko

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Last analyzed: 03 May 2026 at 08:07

Historical Analysis & Change Tracking