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nbc-nagasaki.co.jp

https://nbc-nagasaki.co.jp· First analyzed 24 May 2026· Updated 24 May 2026
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nbc-nagasaki.co.jp
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Mobile

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Hosting Provider

aws.amazon.com

IP Address

35.79.229.81

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

CDN

CDN

Nameservers

ns-179.awsdns-22.com.ns-1997.awsdns-57.co.uk.ns-1018.awsdns-63.net.ns-1353.awsdns-41.org.

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.5 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
10.7 MB
241 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.4.2
cms
NEW-NBC themev2.0.0Custom

Progressive Web App

Web ManifestApple Touch IconTheme Color

SEO Analysis

C63/100
20
8
3
Meta Tags4/15
Content8/12
Headings3/8
Technical21/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile1/4
Indexability3/3
N
nbc-nagasaki.co.jpnbc-nagasaki.co.jp

TOPページ | NBC長崎放送

No description available for this page.

Title Length16 chars

Recommended: 50-60 chars (~99px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

  • Missing meta description — important for click-through rates in SERPs
  • Missing H1 tag — every page should have exactly one H1
  • Most images missing alt text (94/125) — critical for accessibility and SEO

Crawlability

Sitemap

Type: index

4 URLs

4 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.

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AI & LLM Readiness

D48/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
7/25
Citation
11/25

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:3%
Words:424
Token eff.:Optimal
Sections/1K:186.3
Depth:1/5

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.8w
Canonical URL
Open Graph2/3
Twitter Card2/3
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.
C
66/100
10
Passed
6
Critical
3
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
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
5/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
6 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.
24/100
F
1.10 g
CO₂e / view
10.7 MB
Page Weight
5%
Cleaner Than
New Visitor
1.26 g
vs
Returning (cached)
631 mg
Annual (10K/mo)
132.5 kg
Emission Segments
Data Center
54 mg
Network
324 mg
Device
725 mg
Resource Breakdown
JavaScript
2.8 MB
Images
7.0 MB
CSS
610.7 KB
HTML
107.8 KB
Other
118.3 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
9 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

98d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Cybertrust Japan Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

31.07.2025

Valid Until

30.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.nbc-nagasaki.co.jpnbc-nagasaki.co.jp

SHA-256 Fingerprint

07:A1:EA:B0:51:E3:56:7F:CB:EF:01:DA:9B:3F:69:29:95:47:BB:73...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

content-type
text/html; charset=UTF-8
date
Sun, 24 May 2026 04:22:35 GMT
link
<https://www.nbc-nagasaki.co.jp/wp-json/>; rel="https://api....
via
JSTCDN
x-cache
MISS/S
x-cache-age
0/-
Good Warning Issue

Email Infrastructure

Google Workspace

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt2.aspmx.l.google.com
aspmx.l.google.com
alt3.aspmx.l.google.com
alt4.aspmx.l.google.com

+1 more

Domain Information

nbc-nagasaki.co.jp

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
Privacy policy page linked
Data Protection Officer mentioned

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.
B
72/100
Mobile Friendly2 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
1 recommendation
  • Mobile compatibility recommendation preview...

Typography & Readability

Helvetica Neue

WCAG Partial
61/100
Readability
/30
23/30

16px · LH 1.43

Hierarchy
/20
7/20
WCAG
/25
10/25

3.11:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

3.11:1

13 issues

Reading Comfort

Single Font Family

left aligned
24px
h2

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

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 3.1:1).

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

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

9 unique colors
2.33:1 Fail Light
#8c8f8d
Other· 7.5%
#dadad7
Other· 4.3%
#f9f8f4
Primary· 37.80000000000001%
#15100a
Secondary· 11.9%
#cec2b6
Secondary· 9.3%
#845b51
Secondary· 8.3%
#efe6ea
Secondary· 7.9%
#5e3c29
Secondary· 6.9%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

1

User behavior and product analytics

Advertising

1

Ad platforms and retargeting pixels

Social Media

1

Social widgets and sharing tools

3

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google Ad ManagerPubMaticPrebid.js

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
7
Async
0
Defer

Top Script Sources

nbc-nagasaki.co.jp(11)connect.facebook.net(2)securepubads.g.doubleclick.net(2)anymind360.com(2)script.4dex.io(1)

Website Identity

NBC長崎放送

Organization
Location detected: 🇯🇵 Japanvia tld
📧 Google Workspace

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Last analyzed: 24 May 2026 at 04:23

Historical Analysis & Change Tracking