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uos.ac.kr

https://uos.ac.kr· First analyzed 02 May 2026· Updated 02 May 2026
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uos.ac.kr
Desktop screenshot of uos.ac.kr
Mobile screenshot of uos.ac.kr
Mobile

Sponsored

Hosting Provider

Kren

IP Address

203.249.96.80

Site Location

🇰🇷 South Koreavia tld

Server Location

🇰🇷 Yongdu-dong, South Korea

ASN

AS9978

Organization

Kren

Nameservers

ns1.uos.ac.kr.ns2.uos.ac.kr.

Performance

74

Core Web Vitals

Weight

First Contentful Paint
3.7 s10%
Speed Index
4.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.2 MB
91 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Kren

Technology Stack

2 Technologies Detected

Libraries

1
jQueryv1.11.3

CSS Frameworks

1
Tailwind CSS

SEO Analysis

C64/100
19
8
0
Meta Tags5/15
Content12/12
Headings8/8
Technical18/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile1/4
Indexability3/3
U
uos.ac.kruos.ac.kr

서울시립대학교

서울시립대학교

Title Length7 chars

Recommended: 50-60 chars (~43px / 580px)

Description Length7 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    29 URLs

    robots.txt

    53 rules

    Local SEO

    Local Search Readiness

    3/100
    Poor
    1 14 2

    This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

    Sponsored

    AI & LLM Readiness

    D49/100
    Bot Access
    20/25
    Machine Read.
    19/25
    Schema Data
    0/25
    Citation
    10/25

    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    def. lists
    Text ratio:14%
    Words:2,766
    Token eff.:Optimal
    Sections/1K:3.6
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary177w
    Descriptive Headingsavg 1.7w
    Canonical URL
    Open Graph2/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    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.
    B
    74/100
    10
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    14/20
    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.
    1 recommendation
    • •Accessibility recommendation preview...
    Upgrade to view recommendations

    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.
    15/100
    D
    277 mg
    CO₂e / view
    2.2 MB
    Page Weight
    50%
    Cleaner Than
    New Visitor
    317 mg
    vs
    Returning (cached)
    158 mg
    Annual (10K/mo)
    33.3 kg
    Emission Segments
    Data Center
    62 mg
    Network
    67 mg
    Device
    149 mg
    Resource Breakdown
    JavaScript
    126.0 KB
    Images
    646.0 KB
    CSS
    1.4 MB
    HTML
    54.1 KB
    Other
    26.0 KB
    Green Hosting Not Verified
    Kren
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    31%Critical
    Interactive

    HTTPS

    No WAF

    238d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    GlobalSign nv-sa

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    24.11.2025

    Valid Until

    26.12.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.uos.ac.kruos.ac.kr

    SHA-256 Fingerprint

    E7:66:E3:66:33:F6:17:1E:D3:BB:4F:53:9E:94:52:97:D4:FC:1D:39...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-credentials
    true
    access-control-allow-headers
    access-control-allow-methods
    GET, POST
    access-control-allow-origin
    content-language
    en-GB
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    mail.uos.ac.kr

    Domain Information

    uos.ac.kr

    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.
    C
    66/100
    Mobile Friendly7 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=1.0, minimum-scale=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    NotoSans

    WCAG Partial
    52/100
    Readability
    /30
    13/30

    13px · LH 1.50

    Hierarchy
    /20
    15/20

    2.46x ratio

    WCAG
    /25
    13/25

    1:1 min contrast

    Performance
    /25
    11/25

    3 fonts · 1 req

    Heading Font

    NotoSans

    Sans32px

    Body Font

    NotoSans

    Sans13px

    Contrast Ratio

    1:1

    13 issues

    Reading Comfort

    ~44 CPL

    Narrow lines
    32px
    h1
    33px
    h2
    34px
    h3
    21px
    h4
    13px
    p

    ❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

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

    ❌ Very complex text: Flesch score 27/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.5x larger than body text.

    Buy on MyFontsFlesch 27

    Color Palette

    15 unique colors
    3.38:1 AA Large Light
    #f0f0f1
    Background· 8%
    #7f8288
    Other· 7.4%
    #7fadda
    Accent· 16%
    #646f7a
    Secondary· 9%
    #363b44
    Text· 8.4%
    #171828
    Primary· 7.4%
    #147fdf
    Accent· 6.5%
    #a6acc0
    Secondary· 5.8%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    15 Resources

    10
    Scripts
    5
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(6)seoul.go.kr(2)netfunnel.uos.ac.kr(1)delivery.dighty.com(1)

    Website Identity

    uos.ac.kr

    Location detected: 🇰🇷 South Koreavia tld
    ko

    Sponsored

    Last analyzed: 02 May 2026 at 00:36

    Historical Analysis & Change Tracking