ybc.co.jp

https://ybc.co.jp· First analyzed 31 May 2026· Updated 31 May 2026

Export

ybc.co.jp

Mobile

Sponsored

Hosting Provider

Architectural Systems Inc.

IP Address

133.242.134.75

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS7684

Organization

Architectural Systems Inc.

CDN

Nameservers

ns3.mmy.ne.jp.ns.mmy.ne.jp.ns1.mmy.ne.jp.ns2.mmy.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.4 s10%

Speed Index

1.8 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

9.9 MB

173 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.3.8

cms

ybcCustom

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

17 Technologies Detected

Plugins

Instagram Feed Coblocks Eventbank Calendar Flexible Table Block Add To Any Youtube Embed Plus The Preloader

UI Components

Analytics

Libraries

CSS Frameworks

Icon Libraries

Tag Managers

Advertising

Customer Support

SEO Analysis

B71/100

Meta Tags10/15

Content10/12

Headings3/8

Technical23/25

E-E-A-T2/7

Images5/7

Links2/5

URL5/5

Social5/5

Freshness0/4

Mobile3/4

Indexability3/3

ybc.co.jpybc.co.jp

YBC 山形放送 - 山形放送(YBC)のホームページ。テレビ、ラジオの番組情報や、山形県内の最新ニュースなどを詳しく紹介。

山形放送(YBC)のホームページ。テレビ、ラジオの番組情報や、山形県内の最新ニュースなどを詳しく紹介。

Title Length62 chars

Recommended: 50-60 chars (~384px / 580px)

Description Length51 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

47 URLs

47 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

15/100

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

D53/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

8/25

Citation

12/25

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

nav

Text ratio:4%

Words:430

Token eff.:Optimal

Sections/1K:23.3

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary25w

Descriptive Headingsavg 1.7w

Canonical URL

Open Graph2/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

Upgrade to view recommendations

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.

A+

90/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

20/20

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

9/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

1 recommendation

•Accessibility recommendation preview...

Upgrade to view recommendations

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.

14/100

1.25 g

CO₂e / view

9.9 MB

Page Weight

Cleaner Than

New Visitor

1.43 g

Returning (cached)

715 mg

Annual (10K/mo)

150.1 kg

Emission Segments

Data Center

279 mg

Network

300 mg

Device

672 mg

Resource Breakdown

JavaScript

501.6 KB

Images

8.3 MB

CSS

921.0 KB

HTML

115.2 KB

Other

41.2 KB

Green Hosting Not Verified

Architectural Systems Inc.

10 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

56%Poor

Interactive

HTTPS

No WAF

174d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.05.2026

Valid Until

21.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.ybc.co.jpybc.co.jp

SHA-256 Fingerprint

7C:0A:40:C6:11:33:5E:4B:46:91:EF:B5:CD:86:6E:A4:DE:31:19:A5...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-language

content-type

text/html; charset=UTF-8

date

Sun, 31 May 2026 04:16:18 GMT

link

<https://www.ybc.co.jp/wp-json/>; rel="https://api.w.org/"

strict-transport-security

max-age=31536000

via

JSTCDN

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

ybc918.in.tmems-jp.trendmicro.com

Domain Information

ybc.co.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.

70/100

Mobile Friendly3 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, user-scalable=no

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Noto Sans JP

WCAG AA

79/100

Readability

/30

25/30

16px · LH 1.50

Hierarchy

/20

18/20

2x ratio · ✓ H1→H6

WCAG

/25

21/25

4.68:1 min contrast

Performance

/25

15/25

1 font · 2 req

Heading Font

Noto Sans JP

Sans32px

Body Font

Noto Sans JP

Sans16px

Contrast Ratio

4.68:1

WCAG AA (≥4.5:1)

Reading Comfort

~48 CPL

Optimal (45–75)

32px

24px

21px

16px

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

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

✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.7:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

Buy on MyFontsFlesch 64

Color Palette

9 unique colors

Light

#ffffff

Primary· 59.099999999999994%

#f9da8a

Accent· 13.699999999999998%

#a74522

Accent· 6.8%

#322219

Primary· 5.4%

#a3a27a

Secondary· 5.2%

#e7e2cf

Secondary· 4.4%

#e5af8d

Accent· 3.9%

#f7e2b1

Accent· 0.8%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

ybc.co.jp(6)googletagmanager.com(3)static.addtoany.com(3)cse.google.com(2)youtube.com(2)

Website Identity

YBC　山形放送

Organization

山形放送(YBC)のホームページ。テレビ、ラジオの番組情報や、山形県内の最新ニュースなどを詳しく紹介。

www.ybc.co.jp/

Location detected: 🇯🇵 Japanvia tld

Sponsored

Last analyzed: 31 May 2026 at 04:16

Historical Analysis & Change Tracking