dstec.kr

https://dstec.kr· First analyzed 31 May 2026· Updated 31 May 2026

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dstec.kr

Mobile

Sponsored

Hosting Provider

SMILESERV

IP Address

115.68.179.29

Site Location

🇰🇷 South Koreavia tld

Server Location

🇰🇷 Gwangmyeong, South Korea

ASN

AS38700

Organization

SMILESERV

Server

Nginx

Nameservers

ns2.hosting.co.kr.ns3.hosting.co.kr.ns1.hosting.co.kr.ns4.hosting.co.kr.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.4 MB

58 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

SMILESERV

Technology Stack

7 Technologies Detected

Libraries

CSS Frameworks

UI Components

Icon Libraries

Web Servers

SEO Analysis

D51/100

Meta Tags5/15

Content7/12

Headings3/8

Technical13/21

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

dstec.krdstec.kr

대성하이테크

Title Length6 chars

Recommended: 50-60 chars (~37px / 580px)

Description Length6 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (47/51) — critical for accessibility and SEO

9 issues found

Upgrade to view details

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

F35/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

11/25

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

header/footer

Text ratio:2%

Words:138

Token eff.:Too Short

Sections/1K:29

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 3.8w

Canonical URL

Open Graph2/3

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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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.

63/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

11/20

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

13/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

4/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 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.

36/100

178 mg

CO₂e / view

1.4 MB

Page Weight

60%

Cleaner Than

New Visitor

204 mg

Returning (cached)

102 mg

Annual (10K/mo)

21.4 kg

Emission Segments

Data Center

40 mg

Network

43 mg

Device

96 mg

Resource Breakdown

JavaScript

180.6 KB

Images

926.0 KB

CSS

328.3 KB

HTML

4.8 KB

Green Hosting Not Verified

SMILESERV

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

46%Poor

Interactive

HTTPS

No WAF

33d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.04.2026

Valid Until

03.07.2026

Subject Alternative Names (2)

dstec.krwww.dstec.kr

SHA-256 Fingerprint

0B:6E:A2:83:8E:FD:A7:E0:FC:FE:2A:9F:30:20:52:1C:EC:55:F8:03...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

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

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Sun, 31 May 2026 06:07:38 GMT

expires

Mon, 26 Jul 1997 05:00:00 GMT

last-modified

Sun, 31 May 2026 06:07:38 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx2.mail.iwinv.kr

Domain Information

dstec.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.

54/100

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, user-scalable=yes

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG Partial

56/100

Readability

/30

20/30

15px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

14/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans15px

Contrast Ratio

1:1

4 issues

Reading Comfort

Single Font Family

left aligned

32px

28px

18px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFonts

Color Palette

8 unique colors

3.27:1 AA Large Dark

#171717

Text· 16.6%

#68696e

Other· 12.8%

#002865

Primary· 20.300000000000004%

#fffffe

Background· 15.799999999999999%

#414750

Border· 11.6%

#cbcbbd

Secondary· 8.1%

#0a162d

Accent· 0.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)

Website Identity

dstec.kr

Location detected: 🇰🇷 South Koreavia tld

Social Profiles

Instagram

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Last analyzed: 31 May 2026 at 06:08

Historical Analysis & Change Tracking