jla.or.jp

https://jla.or.jp· First analyzed 13 May 2026· Updated 13 May 2026

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jla.or.jp

Mobile

Sponsored

Hosting Provider

XSERVER Inc.

IP Address

85.131.197.191

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131965

Organization

XSERVER Inc.

Server

Nginx

Nameservers

ns008-gltmetdgi3663mpg.g.d-53.net.ns008-gltmetdgi3663mpg.g.d-53.info.ns008-gltmetdgi3663mpg.g.d-53.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.5 s10%

Speed Index

3.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.6 MB

77 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

cocoon-masterCustom

Technology Stack

12 Technologies Detected

Plugins

Bbpress Wp Members Smart Slider 3 Vk Link Target Controller

Advertising

Google Ads Google AdSense

Libraries

CSS Frameworks

Icon Libraries

Fonts

Analytics

Web Servers

SEO Analysis

B75/100

Meta Tags5/15

Content3/12

Headings7/8

Technical24/25

E-E-A-T7/7

Images3/7

Links5/5

URL5/5

Social5/5

Freshness4/4

Mobile4/4

Indexability3/3

jla.or.jpjla.or.jp

TOPコンテンツ - 日本図書館協会オフィシャルサイト

見解・意見・要望図書館員のおすすめ本英米文学のわからない言葉金原瑞人著左右社想像力をときはなつアート

Title Length27 chars

Recommended: 50-60 chars (~170px / 580px)

Description Length55 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (3 words). Search engines need substantial content for ranking.
• Most images missing alt text (21/40) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

14 URLs

14 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100

Poor

4 13

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D50/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

13/25

Citation

10/25

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:392

Token eff.:Optimal

Structured Data

5 JSON-LD

Article×1.2Person×1.3Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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Sponsored

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.

68/100

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

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.

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.

29/100

578 mg

CO₂e / view

4.6 MB

Page Weight

15%

Cleaner Than

New Visitor

660 mg

Returning (cached)

330 mg

Annual (10K/mo)

69.3 kg

Emission Segments

Data Center

129 mg

Network

139 mg

Device

310 mg

Resource Breakdown

JavaScript

97.8 KB

Images

2.5 MB

CSS

1.8 MB

Fonts

86.8 KB

HTML

48.5 KB

Other

24.1 KB

Green Hosting Not Verified

XSERVER Inc.

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

72d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.04.2026

Valid Until

25.07.2026

Subject Alternative Names (2)

jla.or.jpwww.jla.or.jp

SHA-256 Fingerprint

79:09:6B:67:18:3D:B9:77:7E:61:4F:D7:6C:0D:B3:25:88:52:A5:4C...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Wed, 13 May 2026 07:41:51 GMT

link

<https://www.jla.or.jp/wp-json/>; rel="https://api.w.org/", ...

server

nginx

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx.securemx.jp

mx6.securemx.jp

Domain Information

jla.or.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

73/100

Mobile Friendly14 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, viewport-fit=cover

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Hiragino Kaku Gothic ProN

WCAG Partial

60/100

Readability

/30

22/30

18px · LH 1.80

Hierarchy

/20

8/20

1.44x ratio

WCAG

/25

10/25

1.79:1 min contrast

Performance

/25

20/25

1 font · 2 req

Heading Font

Hiragino Kaku Gothic ProN

Sans26px

Body Font

Hiragino Kaku Gothic ProN

Sans18px

Contrast Ratio

1.79:1

22 issues

Reading Comfort

~34 CPL

Narrow lines

26px

20px

15px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.8:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

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

Buy on MyFonts

Color Palette

7 unique colors

2.66:1 Fail Light

#ffffff

Background· 58.300000000000004%

#9c9fa4

Other· 5.4%

#295294

Accent· 13.999999999999998%

#addcda

Primary· 13.100000000000001%

#5878a5

Secondary· 3.2%

#29447f

Accent· 1.3%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

LinkedIn WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

jla.or.jp(13)ajax.googleapis.com(1)cdnjs.cloudflare.com(1)webfonts.xserver.jp(1)

Website Identity

日本図書館協会オフィシャルサイト

Organization

見解・意見・要望図書館員のおすすめ本英米文学のわからない言葉金原瑞人著左右社想像力をときはなつアート

www.jla.or.jp/

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook X (Twitter)Instagram

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Last analyzed: 13 May 2026 at 07:42

Historical Analysis & Change Tracking