sejong.ac.kr

https://sejong.ac.kr· First analyzed 03 May 2026· Updated 03 May 2026

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sejong.ac.kr

Mobile

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Hosting Provider

KISTI

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

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

Libraries

Analytics

Other

CSS Frameworks

Web Servers

SEO Analysis

C62/100

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

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

9 issues found

Upgrade to view details

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.

88/100

Passed

Critical

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...

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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.

21/100

1.57 g

CO₂e / view

12.4 MB

Page Weight

Cleaner Than

New Visitor

1.79 g

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...

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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

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Upgrade to view header details

HTTP Headers

Developer Console

cms-container

db5ac412ad9530e1

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-language

content-security-policy

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

sniper.sejong.ac.kr

Domain Information

sejong.ac.kr

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 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...

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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

72px

24px

16px

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.

Buy on MyFontsFlesch 33

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

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

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

Website Identity

sejong.ac.kr

0234083114

Location detected: 🇰🇷 South Koreavia tld

Social Profiles

Facebook Instagram YouTube

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Last analyzed: 03 May 2026 at 08:07

Historical Analysis & Change Tracking