severance.healthcare

https://severance.healthcare· First analyzed 19 May 2026· Updated 19 May 2026

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Mobile

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Hosting Provider

Kornet

IP Address

128.134.212.121

Site Location

🇰🇷 South Koreavia ip

Server Location

🇰🇷 Seongnam-si, South Korea

ASN

AS10060

Organization

Kornet

Nameservers

EX-DNS-01.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.5 s10%

Speed Index

3.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

8.8 MB

38 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Kornet

Technology Stack

6 Technologies Detected

Libraries

Analytics

UI Components

CSS Frameworks

SEO Analysis

C61/100

Meta Tags7/15

Content4/12

Headings1/8

Technical22/25

E-E-A-T2/7

Images4/7

Links4/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

severance.healthcareseverance.healthcare

세브란스 | 연세대학교 의료원

세브란스 공식 게이트 페이지입니다. 연세대학교 의료원 산하 세브란스병원·강남세브란스병원·용인세브란스병원 병원 및 의과대학·치과대학·간호대학·보건대학원 홈페이지로 안내합니다.

Title Length16 chars

Recommended: 50-60 chars (~97px / 580px)

Description Length96 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (46 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

6 issues found

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Crawlability

Sitemap

Type: standard

10 URLs

robots.txt

52 rules

Local SEO

Local Search Readiness

11/100

Poor

3 14

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

Sponsored

AI & LLM Readiness

F33/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

2/25

Citation

10/25

AI Bot Access

13/14 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:2%

Words:42

Token eff.:Too Short

Sections/1K:10

Structured Data

1 JSON-LD

Organization×1.1

Citation Readiness

Opening Summary

Descriptive Headingsavg 5w

Canonical URL

Open Graph3/3

Twitter Card3/3

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.

67/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

7/20

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.

2 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.

7/100

1.12 g

CO₂e / view

8.8 MB

Page Weight

Cleaner Than

New Visitor

1.28 g

Returning (cached)

638 mg

Annual (10K/mo)

133.9 kg

Emission Segments

Data Center

249 mg

Network

268 mg

Device

599 mg

Resource Breakdown

JavaScript

618.3 KB

Images

3.0 MB

CSS

5.2 MB

HTML

11.6 KB

Other

305 B

Green Hosting Not Verified

Kornet

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

77d

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

15.07.2025

Valid Until

04.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.severance.healthcareseverance.healthcare

SHA-256 Fingerprint

FD:5F:12:8A:23:3D:A4:93:3B:76:44:8A:81:A1:93:C5:AF:43:5F:94...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache no-store, no-cache)

connection

keep-alive

content-language

content-type

text/html; charset=UTF-8

date

Tue, 19 May 2026 07:22:49 GMT

expires

Thu, 01 Jan 1970 00:00:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

severance.healthcare

Domain Age

6y 9m

Created

09.08.2019

Expires

09.08.2030

Last Updated

27.07.2025

Registrar

Gabia, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

53/100

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,user-scalable=yes

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

NanumGothic

WCAG AAA

76/100

Readability

/30

21/30

14px · LH 1.63

Hierarchy

/20

10/20

WCAG

/25

24/25

10.79:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

NanumGothic

Sans

Body Font

NanumGothic

Sans14px

Contrast Ratio

10.79:1

WCAG AAA (≥7:1)

Reading Comfort

~48 CPL

Optimal (45–75)

72px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 10.8:1).

✅ System fonts: Zero font loading delay — best possible LCP impact.

Buy on MyFonts

Color Palette

10 unique colors

4.79:1 AA Light

#ffffff

Background· 26.2%

#7f6f69

Secondary· 7.8%

#013976

Primary· 27.7%

#8b9ba5

Secondary· 8.2%

#e7ebec

Secondary· 6.4%

#162943

Accent· 6%

#26547b

Accent· 5.7%

#b0bcd0

Secondary· 5.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)..(5)googletagmanager.com(1)cdnjs.cloudflare.com(1)

Website Identity

세브란스

Organization

www.severance.healthcare/severance/index.do

6 years old

Location detected: 🇰🇷 South Koreavia ip

Gabia, Inc.ko

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Last analyzed: 19 May 2026 at 07:23

Historical Analysis & Change Tracking