nexbook.co.kr

https://nexbook.co.kr· First analyzed 05 May 2026· Updated 05 May 2026

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nexbook.co.kr

Mobile

Sponsored

Hosting Provider

SMILESERV

IP Address

115.68.17.207

Site Location

🇰🇷 South Koreavia tld

Server Location

🇰🇷 Gwangmyeong, South Korea

ASN

AS38700

Organization

SMILESERV

Server

Apache

Nameservers

ns2.kr.ns9.kr.ns1.kr.ns8.kr.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.7 s10%

Speed Index

3.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.9 MB

132 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

SMILESERV

Technology Stack

9 Technologies Detected

UI Components

Swiper Owl Carousel

CSS Frameworks

Bootstrap

Tailwind CSS

Icon Libraries

Font Awesome Material Icons

Libraries

jQueryv1.8.3

Fonts

Google Fonts

Web Servers

Apache

SEO Analysis

D52/100

Meta Tags1/15

Content11/12

Headings3/8

Technical13/25

E-E-A-T3/7

Images1/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

nexbook.co.krnexbook.co.kr

No Title Found

이북제작, 이북솔루션, eBook, 전자책 솔루션, 디자인편집 전문 이앤아이월드입니다

Title Length0 chars

Recommended: 50-60 chars

Description Length47 chars

Recommended: 120-160 chars

Issues (3)

• Missing page title — critical for SEO rankings and SERP display
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (102/116) — critical for accessibility and SEO

10 issues found

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Crawlability

Sitemap

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

5/100

Poor

2 13 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

D43/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

0/25

Citation

15/25

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

Text ratio:11%

Words:1,025

Token eff.:Optimal

Sections/1K:14.6

Structured Data

No Schema

Citation Readiness

Opening Summary11w

Descriptive Headingsavg 7.7w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

57/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

6/20

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

7/15

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

4 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.

3/100

617 mg

CO₂e / view

4.9 MB

Page Weight

15%

Cleaner Than

New Visitor

705 mg

Returning (cached)

353 mg

Annual (10K/mo)

74.0 kg

Emission Segments

Data Center

138 mg

Network

148 mg

Device

331 mg

Resource Breakdown

JavaScript

277.1 KB

Images

4.1 MB

CSS

434.0 KB

Fonts

638 B

HTML

38.8 KB

Green Hosting Not Verified

SMILESERV

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

80%Very Good

Static / Informational

HTTPS

No WAF

145d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

13.03.2026

Valid Until

27.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (6)

ebook.co.krebookapi.ebook.co.krebookmade.co.krmakebook.co.krnexbook.co.krwebmade.co.kr

SHA-256 Fingerprint

74:A6:8E:88:E7:50:56:D0:9A:5C:B1:94:08:B4:8B:A6:7C:CE:4B:96...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

Keep-Alive

content-type

text/html; charset=euckr

date

Tue, 05 May 2026 05:03:18 GMT

keep-alive

timeout=5, max=100

permissions-policy

geolocation=(), microphone=(), camera=()

referrer-policy

strict-origin-when-cross-origin

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.nexbook.co.kr

Domain Information

nexbook.co.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.

42/100

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, minimum-scale=1.0, user-scalable=no

5 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Malgun Gothic + Noto Sans KR

WCAG Partial

52/100

Readability

/30

23/30

14px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

15/25

1:1 min contrast

Performance

/25

7/25

3 fonts · 10 req

Heading Font

Malgun Gothic

Sans

Body Font

Noto Sans KR

Sans14px

Contrast Ratio

1:1

13 issues

Reading Comfort

~47 CPL

Optimal (45–75)

40px

50px

14px

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

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

✅ Optimal line length: ~47 chars/line (ideal 45–75 CPL).

✅ Easy to read: Flesch score 72/100 — accessible to general audiences.

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

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

GGoogle Fonts Buy on MyFontsFlesch 72

Color Palette

11 unique colors

Light

#1b8bbb

Accent· 19.1%

#389dc8

Accent· 16.3%

#9bdbf9

Accent· 15.1%

#74c3e6

Accent· 13.3%

#fffffe

Primary· 9.1%

#5caed1

Accent· 7.5%

#eef3f4

Secondary· 5.3%

#16233e

Secondary· 4.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)

Website Identity

nexbook.co.kr

info@ebook.co.kr

Location detected: 🇰🇷 South Koreavia tld

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Last analyzed: 05 May 2026 at 05:03

Historical Analysis & Change Tracking