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jprs.jp

https://jprs.jp· First analyzed 02 May 2026· Updated 02 May 2026
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jprs.jp
Desktop screenshot of jprs.jp
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Mobile

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Hosting Provider

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

75

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

1

CSS Frameworks

1

SEO Analysis

D53/100
13
10
1
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
J
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

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.
C
65/100
9
Passed
5
Critical
1
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...

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
F
423 mg
CO₂e / view
3.3 MB
Page Weight
30%
Cleaner Than
New Visitor
483 mg
vs
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...
F

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

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

65

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
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked

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
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...

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
h2
13px
p

❌ 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.

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

1

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

12 Resources

8
Scripts
4
Styles
1
Async
0
Defer

Top Script Sources

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

Website Identity

jprs.jp

Location detected: 🇯🇵 Japanvia tld
ja

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Last analyzed: 02 May 2026 at 22:53

Historical Analysis & Change Tracking