web116.jp

https://web116.jp· First analyzed 18 May 2026· Updated 18 May 2026

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web116.jp

Mobile

Sponsored

Hosting Provider

Japan163

IP Address

163.137.234.153

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS17516

Organization

Japan163

Nameservers

ns005-mqbevmoewim2s523.m.d-53.jp.ns005-mqbevmoewim2s523.m.d-53.net.ns005-mqbevmoewim2s523.m.d-53.info.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.2 s10%

Speed Index

2.9 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

6.5 MB

187 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Japan163

Technology Stack

1 Technologies Detected

UI Components

Swiper

SEO Analysis

F35/100

Meta Tags7/15

Content0/12

Headings0/8

Technical13/21

E-E-A-T0/7

Images0/7

Links0/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

web116.jpweb116.jp

【公式】NTT東日本|個人のお客さまトップ|個人のお客さま

NTT東日本の個人のお客さま向け公式サイトです。インターネット（フレッツ光/コラボ光）・電話・電報・通信機器などのサービスを、個人のお客さまに向けにご案内しています。

Title Length29 chars

Recommended: 50-60 chars (~175px / 580px)

Description Length83 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (1 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

8 issues found

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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.

Sponsored

AI & LLM Readiness

F28/100

Bot Access

20/25

Machine Read.

1/25

Schema Data

0/25

Citation

7/25

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:0%

Words:0

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

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.

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.

6/100

818 mg

CO₂e / view

6.5 MB

Page Weight

Cleaner Than

New Visitor

935 mg

Returning (cached)

467 mg

Annual (10K/mo)

98.1 kg

Emission Segments

Data Center

183 mg

Network

196 mg

Device

439 mg

Resource Breakdown

JavaScript

613.8 KB

Images

3.9 MB

CSS

1.9 MB

HTML

36.5 KB

Green Hosting Not Verified

Japan163

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

20%Critical

No SSL

No WAF

N/A

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 0s(max-age=0)

connection

Keep-Alive

content-length

590

content-type

text/html

date

Mon, 18 May 2026 06:08:06 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

r01ims003.rabbit.groupis-ex.ntt

Domain Information

web116.jp

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.

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=device-width,initial-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

BIZ UDPGothic

WCAG Partial

60/100

Readability

/30

22/30

16px · LH 1.60

Hierarchy

/20

7/20

WCAG

/25

15/25

1:1 min contrast

Performance

/25

16/25

1 font

Heading Font

BIZ UDPGothic

Sans

Body Font

BIZ UDPGothic

Sans16px

Contrast Ratio

1:1

3 issues

Reading Comfort

Single Font Family

left aligned

32px

24px

20px

16px

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFluid Type

Color Palette

9 unique colors

Light

#ffffff

Background· 66.8%

#0682fc

Primary· 11%

#bdd7f1

Accent· 5.3%

#224598

Accent· 4%

#bacad7

Primary· 3.8%

#a4acb8

Secondary· 2.8%

#fdefb9

Accent· 2.7%

#f3f1df

Primary· 2.1%

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Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)

Website Identity

web116.jp

Location detected: 🇯🇵 Japanvia tld

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Last analyzed: 18 May 2026 at 06:08

Historical Analysis & Change Tracking