4komagram.com

https://4komagram.com· First analyzed 29 May 2026· Updated 29 May 2026

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4komagram.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

13.33.235.80

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 New York, United States

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

AmazonS3

CDN

CloudFront

Nameservers

ns-462.awsdns-57.com.ns-527.awsdns-01.net.ns-1443.awsdns-52.org.ns-1847.awsdns-38.co.uk.

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%

73 KB

4 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Platform

AWS CloudFront

CDN

CloudFront

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

2 Technologies Detected

Icon Libraries

Font Awesome

Fonts

Google Fonts

SEO Analysis

F38/100

Meta Tags10/15

Content4/12

Headings3/8

Technical9/21

E-E-A-T0/7

Images0/7

Links3/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability3/3

4komagram.com4komagram.com

このサイトおよび運営会社について | 4コマ漫画が無料で読み放題 | 4コマgram

4コマgramは、4コマ漫画を誰でも気軽に無料で楽しむことができるサービスです。日本中の面白い4コマ漫画作品が集まっています。

Title Length42 chars

Recommended: 50-60 chars (~258px / 580px)

Description Length63 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (33 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

11 issues found

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Local SEO

Local Search Readiness

2/100

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

F26/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

2/25

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:23%

Words:28

Token eff.:Too Short

Sections/1K:50

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

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

1/15

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.

75/100

A+

7 mg

CO₂e / view

73.0 KB

Page Weight

95%

Cleaner Than

New Visitor

8 mg

Returning (cached)

4 mg

Annual (10K/mo)

888 g

Emission Segments

Data Center

<0.001 g

Network

2 mg

Device

5 mg

Resource Breakdown

Images

2.0 KB

CSS

8.5 KB

Fonts

59.5 KB

HTML

3.0 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

WAF

152d

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/2

Valid From

29.09.2025

Valid Until

28.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

4komagram.com

SHA-256 Fingerprint

39:26:DC:5E:33:0B:E9:88:62:90:A4:E2:52:C7:FA:07:18:71:5C:0F...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

48470

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Fri, 29 May 2026 06:02:46 GMT

etag

W/"f65ce1e824de1ffb9a9afc62930a6294"

last-modified

Thu, 02 Oct 2025 05:42:23 GMT

Good Warning Issue

Email Infrastructure

Amazon SES

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

inbound-smtp.us-east-1.amazonaws.com

Domain Information

4komagram.com

Domain Age

8y 10m

Created

21.07.2017

Expires

21.07.2026

Last Updated

20.06.2025

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.

69/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Noto Sans JP

WCAG Partial

59/100

Readability

/30

21/30

16px · LH 1.75

Hierarchy

/20

8/20

WCAG

/25

17/25

2.26:1 min contrast

Performance

/25

13/25

1 font · 1 req

Heading Font

Noto Sans JP

Sans

Body Font

Noto Sans JP

Sans16px

Contrast Ratio

2.26:1

12 issues

Reading Comfort

~36 CPL

Narrow lines

24px

19px

16px

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

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 2.3:1).

❌ 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).

GGoogle Fonts

Color Palette

6 unique colors

Light

#eeeeee

Background· 35.1%

#2ebfb8

Primary· 21%

#ffffff

Primary· 0%

#cddedc

Secondary· 5.3%

#4ac7c1

Accent· 3.5%

#5baca8

Secondary· 2.7%

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Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

4komagram.com

info@4komagram.com

8 years old

Location detected: 🇺🇸 United Statesvia ip

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

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Last analyzed: 29 May 2026 at 19:31

Historical Analysis & Change Tracking