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server-world.info

https://server-world.info· First analyzed 04 May 2026· Updated 04 May 2026
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server-world.info
Desktop screenshot of server-world.info
Mobile screenshot of server-world.info
Mobile

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Hosting Provider

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

95

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

SEO Analysis

D52/100
14
10
2
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
S
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)

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.
C
69/100
10
Passed
4
Critical
1
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...

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
A
72 mg
CO₂e / view
578.9 KB
Page Weight
80%
Cleaner Than
New Visitor
82 mg
vs
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...
B

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

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

70

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
Privacy Policy
Terms of Service

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.
D
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...

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
h1
14px
h2
14px
p
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.

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

1

User behavior and product analytics

Advertising

1

Ad platforms and retargeting pixels

2

Categories

2

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google AdSensePubMaticPrebid.js

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Scripts & Styles

25 Resources

20
Scripts
5
Styles
16
Async
0
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
ja

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Last analyzed: 04 May 2026 at 17:11

Historical Analysis & Change Tracking