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posco.co.kr

https://posco.co.kr· First analyzed 10 May 2026· Updated 10 May 2026
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posco.co.kr
Desktop screenshot of posco.co.kr
Mobile screenshot of posco.co.kr
Mobile

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Hosting Provider

Boranet

IP Address

1.209.183.128

Site Location

🇰🇷 South Koreavia tld

Server Location

🇰🇷 Seoul, South Korea

ASN

AS18305

Organization

Boranet

Nameservers

ns-492.awsdns-61.com.ns-536.awsdns-03.net.ns-1053.awsdns-03.org.ns-2036.awsdns-62.co.uk.

Performance

73

Core Web Vitals

Weight

First Contentful Paint
10.3 s10%
Speed Index
13.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4 MB
54 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Boranet

Technology Stack

11 Technologies Detected

Libraries

2
jQueryv3.7.1
Lodash

Other

2
GSAPScrollMagic

Analytics

2
Google Analytics
Google Analytics 4

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Customer Support

1
Zendesk

SEO Analysis

C69/100
21
5
1
Meta Tags9/15
Content9/12
Headings6/8
Technical19/25
E-E-A-T5/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
P
posco.co.krposco.co.kr

POSCO

POSCO Steel Industry Specialist Company, Investor Information, Product and Technology Introduction, Recruitment Information Homepage

Title Length5 chars

Recommended: 50-60 chars (~36px / 580px)

Description Length132 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (4/4) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1 URLs

robots.txt

55 rules

Local SEO

Local Search Readiness

20/100
Needs Work
5 12

Sponsored

AI & LLM Readiness

D40/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
3/25
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.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
def. listsheader/footer
Text ratio:4%
Words:282
Token eff.:Too Short
Depth:2/5

Structured Data

1 JSON-LD
Organization×1.1
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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.
A
83/100
13
Passed
1
Critical
1
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
12/15
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
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •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.
12/100
F
512 mg
CO₂e / view
4.0 MB
Page Weight
15%
Cleaner Than
New Visitor
585 mg
vs
Returning (cached)
292 mg
Annual (10K/mo)
61.4 kg
Emission Segments
Data Center
114 mg
Network
123 mg
Device
275 mg
Resource Breakdown
JavaScript
1.8 MB
Images
19.8 KB
CSS
2.2 MB
HTML
56.7 KB
Other
1.2 KB
Green Hosting Not Verified
Boranet
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

138d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

11.03.2026

Valid Until

25.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.posco.co.krposco.co.kr

SHA-256 Fingerprint

33:08:99:74:6E:62:13:05:A1:CF:73:7C:C1:6B:2D:29:4B:C5:9F:89...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
connection
Keep-Alive
content-language
en
content-length
2337
content-type
text/html
date
Sun, 10 May 2026 19:30:06 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

antispam.posco.net

Domain Information

posco.co.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
48/100
Not 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, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Metropolis

WCAG Partial
59/100
Readability
/30
21/30

18px · LH 1.75

Hierarchy
/20
14/20

✓ H1→H6 order

WCAG
/25
13/25

1:1 min contrast

Performance
/25
11/25

1 font · 5 req

Heading Font

Metropolis

Sans0

Body Font

Metropolis

Sans18px

Contrast Ratio

1:1

9 issues

Reading Comfort

Single Font Family

left aligned
16px
h1

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Hard to read: Flesch score 38/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 38

Color Palette

2 unique colors
Dark
#3b3b38
Other· 3.5%
#081719
Primary· 96.50000000000001%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

24 Resources

14
Scripts
10
Styles
3
Async
0
Defer

Top Script Sources

local(11)googletagmanager.com(2)google-analytics.com(1)

Website Identity

POSCO

Organization
www.posco.co.kr/
Location detected: 🇰🇷 South Koreavia tld
en

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Last analyzed: 10 May 2026 at 19:30

Historical Analysis & Change Tracking