nikaidou.com

https://nikaidou.com· First analyzed 03 Jun 2026· Updated 03 Jun 2026

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nikaidou.com

Mobile

Sponsored

Hosting Provider

Telstra International Limited

IP Address

202.147.5.230

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Shibuya City, Japan

ASN

AS4637

Server

LiteSpeed

Nameservers

ns2.a-mode.jp.ns1.a-mode.jp.ns3.a-mode.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

959 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

391 KB

18 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

STINGERPLUSv20160612Custom

by ENJI

View Theme

Technology Stack

11 Technologies Detected

CSS Frameworks

Analytics

Libraries

Other

Icon Libraries

Fonts

Web Servers

Languages

Plugins

SEO Analysis

D49/100

Meta Tags4/15

Content8/12

Headings1/8

Technical16/25

E-E-A-T0/7

Images4/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile3/4

Indexability3/3

nikaidou.comnikaidou.com

二階堂ドットコム - 二階堂ドットコム

No description available for this page.

Title Length19 chars

Recommended: 50-60 chars (~117px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

13 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

10 URLs

10 sub-sitemaps

robots.txt

22 rules

Local SEO

Local Search Readiness

9/100

Poor

3 12 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

F34/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

3/25

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

def. listsnavheader/footer

Text ratio:7%

Words:337

Token eff.:Optimal

Sections/1K:92

Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.3w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

70/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

13/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

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

11/15

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.

55/100

48 mg

CO₂e / view

390.7 KB

Page Weight

90%

Cleaner Than

New Visitor

55 mg

Returning (cached)

28 mg

Annual (10K/mo)

5.8 kg

Emission Segments

Data Center

11 mg

Network

12 mg

Device

26 mg

Resource Breakdown

JavaScript

42.3 KB

Images

312.0 KB

CSS

6.3 KB

Fonts

852 B

HTML

20.3 KB

Other

8.9 KB

Green Hosting Not Verified

Telstra International Limited

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

249d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Nijimo, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

08.01.2026

Valid Until

07.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.nikaidou.comnikaidou.com

SHA-256 Fingerprint

5C:A3:60:A0:C8:CF:68:A1:E0:31:FF:CC:8F:28:39:7C:26:23:FD:9E...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...

content-encoding

📦 Gzip(gzip)

content-length

20448

content-type

text/html; charset=UTF-8

date

Wed, 03 Jun 2026 16:18:09 GMT

link

<https://www.nikaidou.com/wp-json/>; rel="https://api.w.org/...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

post.nikaidou.com

Domain Information

nikaidou.com

Domain Age

23y 9m

Created

25.08.2002

Expires

25.08.2026

Last Updated

26.08.2025

Registrar

TLDS L.L.C. d/b/a SRSPlus

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

62/100

Mobile Friendly4 breakpoints

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=1.0,user-scalable=no

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Josefin Sans + メイリオ

WCAG Partial

58/100

Readability

/30

18/30

15px · LH 1.73

Hierarchy

/20

8/20

WCAG

/25

19/25

1.17:1 min contrast

Performance

/25

13/25

2 fonts · 1 req

Heading Font

Josefin Sans

Sans

Body Font

メイリオ

Sans15px

Contrast Ratio

1.17:1

1 issue

Reading Comfort

~54 CPL

Optimal (45–75)

22px

14px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line length: ~54 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.2:1).

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

✅ Lean font stack: 2 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

GGoogle Fonts Buy on MyFonts

Color Palette

4 unique colors

Light

#f6efc1

Accent· 82.4%

#131929

Primary· 7.4%

#c4bfa3

Secondary· 5.3%

#6e6656

Secondary· 4.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

nikaidou.com(3)xml.affiliate.rakuten.co.jp(2)google-analytics.com(1)ajax.googleapis.com(1)

Website Identity

nikaidou.com

23 years old

Location detected: 🇯🇵 Japanvia ip

TLDS L.L.C. d/b/a SRSPlusja

Social Profiles

Facebook Instagram

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Last analyzed: 03 Jun 2026 at 16:18

Historical Analysis & Change Tracking