jprs.jp

https://jprs.jp· First analyzed 02 May 2026· Updated 02 May 2026

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jprs.jp

Mobile

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Hosting Provider

NTT Communications Corporation

IP Address

117.104.133.164

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS2914

Organization

NTT Communications Corporation

Nameservers

ns4.jprs.jp.ns3.jprs.jp.ns2.jprs.jp.ns1.jprs.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

3.2 s10%

Speed Index

4.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

3.3 MB

48 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

NTT Communications Corporation

Technology Stack

2 Technologies Detected

Libraries

jQueryv1.7.2

CSS Frameworks

Normalize.css

SEO Analysis

D53/100

Meta Tags7/15

Content11/12

Headings3/8

Technical13/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

jprs.jpjprs.jp

JPドメイン名のサービス案内 | JPRS

JPドメイン名の登録管理業務とDNSの運用を行っている株式会社日本レジストリサービス(JPRS)による、JPドメイン名サービス総合案内サイトです。

Title Length21 chars

Recommended: 50-60 chars (~128px / 580px)

Description Length73 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

11 issues found

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Crawlability

Sitemap

robots.txt

2 rules

Local SEO

Local Search Readiness

6/100

Poor

2 13 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

F35/100

Bot Access

20/25

Machine Read.

9/25

Schema Data

0/25

Citation

6/25

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. lists

Text ratio:18%

Words:597

Token eff.:Optimal

Sections/1K:3.4

Depth:1/5

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 (10)

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.

65/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

7/20

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

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.

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.

5/100

423 mg

CO₂e / view

3.3 MB

Page Weight

30%

Cleaner Than

New Visitor

483 mg

Returning (cached)

241 mg

Annual (10K/mo)

50.7 kg

Emission Segments

Data Center

94 mg

Network

101 mg

Device

227 mg

Resource Breakdown

JavaScript

118.0 KB

Images

2.7 MB

CSS

178.0 KB

HTML

52.7 KB

Other

341.3 KB

Green Hosting Not Verified

NTT Communications Corporation

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

150d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Japan Registry Services Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

31.03.2026

Valid Until

30.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

jprs.jpwww.jprs.jp

SHA-256 Fingerprint

23:74:F5:33:BD:FE:E9:C8:60:48:19:E6:45:CF:6C:27:61:FE:70:2E...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

Keep-Alive

content-type

text/html

date

Sat, 02 May 2026 22:52:39 GMT

keep-alive

timeout=5, max=100

strict-transport-security

max-age=2592000

transfer-encoding

chunked

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

jprs.in.tmems-jp.trendmicro.com

Domain Information

jprs.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

52/100

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=1024

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

MS PGOTHIC

WCAG Partial

55/100

Readability

/30

17/30

13px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

MS PGOTHIC

Sans

Body Font

MS PGOTHIC

Sans13px

Contrast Ratio

1:1

21 issues

Reading Comfort

~45 CPL

Optimal (45–75)

16px

13px

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

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

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

✅ Easy to read: Flesch score 94/100 — accessible to general audiences.

⚠️ Partial contrast: 21 elements below WCAG AA threshold (min 1.0:1).

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

Buy on MyFontsFlesch 94

Color Palette

9 unique colors

11.2:1 AAA Light

#ffffff

Background· 61.09999999999999%

#3b3b3b

Text· 7%

#d43835

Primary· 7.1%

#c7c7d3

Border· 7.1%

#82839c

Secondary· 5%

#dbd3d1

Border· 3.5%

#bf9590

Secondary· 1.8%

#c8b092

Secondary· 1.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)cdn01.stright.bizris.com(2)cs.nakanohito.jp(1)

Website Identity

jprs.jp

Location detected: 🇯🇵 Japanvia tld

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Last analyzed: 02 May 2026 at 22:53

Historical Analysis & Change Tracking