mangaz.com

https://mangaz.com· First analyzed 29 May 2026· Updated 29 May 2026

Export

mangaz.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

54.199.131.51

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Apache

Nameservers

ns-415.awsdns-51.com.ns-878.awsdns-45.net.ns-1106.awsdns-10.org.ns-1789.awsdns-31.co.uk.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.1 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

427 KB

83 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Amazon Web Services (AWS)

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

12 Technologies Detected

Libraries

CSS Frameworks

Analytics

UI Components

Other

Tag Managers

Advertising

Web Servers

SEO Analysis

C63/100

Meta Tags7/15

Content11/12

Headings3/8

Technical16/25

E-E-A-T3/7

Images4/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile1/4

Indexability3/3

mangaz.commangaz.com

全巻無料で漫画読み放題！ - マンガ図書館Z

漫画が無料で読み放題！会員登録不要で15,000冊以上が読める！恋愛・ファンタジー・ホラー・BL・TLなどいろんな作品をマンガ図書館Zで楽しもう

Title Length22 chars

Recommended: 50-60 chars (~136px / 580px)

Description Length72 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

21 rules

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

10/25

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.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:4%

Words:557

Token eff.:Optimal

Sections/1K:37.7

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.6w

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...

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.

67/100

Passed

Critical

Warnings

Images & Alt Text

13/20

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

7/15

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

9/15

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

3 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.

67/100

43 mg

CO₂e / view

426.9 KB

Page Weight

90%

Cleaner Than

New Visitor

49 mg

Returning (cached)

25 mg

Annual (10K/mo)

5.2 kg

Emission Segments

Data Center

2 mg

Network

13 mg

Device

28 mg

Resource Breakdown

JavaScript

332.5 KB

Images

25.1 KB

CSS

52.5 KB

HTML

15.2 KB

Other

1.7 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

41%Poor

Interactive

HTTPS

No WAF

127d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

20.03.2026

Valid Until

03.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.mangaz.commangaz.com

SHA-256 Fingerprint

29:16:4C:8E:6E:9D:7C:8C:D1:3F:D9:9C:36:2E:DC:AC:14:77:FE:48...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

none

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

15233

content-type

text/html; charset=UTF-8

date

Fri, 29 May 2026 02:53:38 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

aspmx.l.google.com

aspmx3.googlemail.com

aspmx2.googlemail.com

alt2.aspmx.l.google.com

+1 more

Domain Information

mangaz.com

Domain Age

22y 11m

Created

20.06.2003

Expires

20.06.2029

Last Updated

13.02.2026

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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=1280

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial

71/100

Readability

/30

19/30

16px · LH --

Hierarchy

/20

16/20

2x ratio · ✓ H1→H6

WCAG

/25

17/25

1.88:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Helvetica Neue

Sans32px

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

1.88:1

19 issues

Reading Comfort

Single Font Family

left aligned

32px

20px

12px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 19 elements below WCAG AA threshold (min 1.9:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

Flesch 19

Color Palette

9 unique colors

3.4:1 AA Large Light

#ffffff

Primary· 64.89999999999999%

#898b92

Other· 3.3%

#f2f1ee

Secondary· 7.8%

#894344

Secondary· 5.5%

#d1b08e

Secondary· 4.3%

#2ea8e0

Primary· 4.2%

#d5e2e1

Secondary· 3.7%

#8eb7c0

Secondary· 3.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)cdnjs.cloudflare.com(3)local(3)j.microad.net(3)apis.google.com(2)

Website Identity

mangaz.com

22 years old

Location detected: 🇯🇵 Japanvia ip

GMO Internet Group, Inc. d/b/a Onamae.com📧 Google Workspaceja

Social Profiles

Facebook X (Twitter)

Sponsored

Last analyzed: 29 May 2026 at 02:54

Historical Analysis & Change Tracking