server-world.info

https://server-world.info· First analyzed 04 May 2026· Updated 04 May 2026

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server-world.info

Mobile

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Hosting Provider

NTT Communications Corporation

IP Address

180.43.145.35

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS4713

Organization

NTT Communications Corporation

Server

Apache

Nameservers

dns.server.education.ns.server-world.info.

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%

579 KB

132 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

NTT Communications Corporation

Technology Stack

8 Technologies Detected

Advertising

Google Ads Google AdSense Criteo

Analytics

Fonts

Web Servers

Customer Support

SEO Analysis

D52/100

Meta Tags5/15

Content10/12

Headings8/8

Technical11/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

server-world.infoserver-world.info

Server World - ネットワークサーバー構築

CentOS, Ubuntu, Fedora, Debian, Windows Server でのネットワークサーバー構築方法

Title Length27 chars

Recommended: 50-60 chars (~168px / 580px)

Description Length63 chars

Recommended: 120-160 chars

Issues (2)

• Most images missing alt text (2/2) — critical for accessibility and SEO
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

12 issues found

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Crawlability

Sitemap

Type: standard

6 URLs

robots.txt

20 rules

Sitemap reference found

Allows all crawlers

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.

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AI & LLM Readiness

F31/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

4/25

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:1%

Words:2,162

Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

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.

69/100

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

4/15

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

2 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.

37/100

72 mg

CO₂e / view

578.9 KB

Page Weight

80%

Cleaner Than

New Visitor

82 mg

Returning (cached)

41 mg

Annual (10K/mo)

8.6 kg

Emission Segments

Data Center

16 mg

Network

17 mg

Device

38 mg

Resource Breakdown

JavaScript

424.2 KB

Images

985 B

CSS

20.0 KB

Fonts

4.2 KB

HTML

104.3 KB

Other

25.2 KB

Green Hosting Not Verified

NTT Communications Corporation

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

73d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

Valid From

18.04.2026

Valid Until

17.07.2026

Subject Alternative Names (1)

www.server-world.info

SHA-256 Fingerprint

2A:7D:01:30:76:0E:7F:98:9E:CC:56:3F:15:2B:24:6F:86:E7:27:EA...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-type

text/html

date

Mon, 04 May 2026 17:10:36 GMT

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

ns.server-world.info

Domain Information

server-world.info

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

Data Protection Officer mentioned

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.

44/100

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.

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Lucida Grande

WCAG AAA

64/100

Readability

/30

17/30

14px · LH 1.50

Hierarchy

/20

13/20

1x ratio · ✓ H1→H6

WCAG

/25

21/25

7.04:1 min contrast

Performance

/25

13/25

1 font · 2 req

Heading Font

Lucida Grande

Sans14px

Body Font

Lucida Grande

Sans14px

Contrast Ratio

7.04:1

WCAG AAA (≥7:1)

Reading Comfort

Single Font Family

center aligned

14px

Minor Second

Scale

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

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

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

GGoogle Fonts Buy on MyFontsFlesch 33

Color Palette

5 unique colors

2.65:1 Fail Light

#ffffff

Background· 75.89999999999999%

#a19daa

Other· 4.6%

#c1c3cd

Primary· 5.5%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cmp.inmobi.com(2)fundingchoicesmessages.google.com(2)script.4dex.io(1)edge.hyth.io(1)rules.quantcount.com(1)

Website Identity

server-world.info

Location detected: 🇯🇵 Japanvia ip

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Last analyzed: 04 May 2026 at 17:11

Historical Analysis & Change Tracking