at-nagasaki.jp

https://at-nagasaki.jp· First analyzed 11 May 2026· Updated 11 May 2026

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at-nagasaki.jp

Mobile

Sponsored

Hosting Provider

Yahoo Japan Corporation

IP Address

210.236.247.115

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS4694

Organization

Yahoo Japan Corporation

Server

Nginx

Nameservers

03.dnsv.jp.04.dnsv.jp.01.dnsv.jp.02.dnsv.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

36.6 MB

172 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Yahoo Japan Corporation

Technology Stack

9 Technologies Detected

Analytics

CSS Frameworks

Libraries

Icon Libraries

Tag Managers

Web Servers

SEO Analysis

D58/100

Meta Tags9/15

Content8/12

Headings3/8

Technical16/25

E-E-A-T0/7

Images3/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile3/4

Indexability3/3

at-nagasaki.jpat-nagasaki.jp

長崎市公式観光サイト「travel nagasaki」

長崎市が運営する公式観光サイト「travel nagasaki」。世界遺産、夜景、教会など長崎は魅力的なスポットがいっぱい！特集・グルメ・観光スポット・体験・おみやげ・モデルコース・イベント・宿泊予約・交通アクセスなど旅に役立つおすすめ・人気情報が満載です。

Title Length27 chars

Recommended: 50-60 chars (~163px / 580px)

Description Length129 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (99/134) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

8/100

Poor

3 13 2

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

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

13/25

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. listsnav

Text ratio:2%

Words:441

Token eff.:Optimal

Sections/1K:15.9

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary37w

Descriptive Headingsavg 1.2w

Canonical URL

Open Graph3/3

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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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.

69/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

13/20

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

7/15

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.

4 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.

16/100

4.63 g

CO₂e / view

36.6 MB

Page Weight

Cleaner Than

New Visitor

5.29 g

Returning (cached)

2.65 g

Annual (10K/mo)

555.9 kg

Emission Segments

Data Center

1.03 g

Network

1.11 g

Device

2.49 g

Resource Breakdown

JavaScript

616.7 KB

Images

35.5 MB

CSS

423.9 KB

HTML

34.8 KB

Green Hosting Not Verified

Yahoo Japan Corporation

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

89d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

10.05.2026

Valid Until

08.08.2026

Subject Alternative Names (2)

at-nagasaki.jpwww.at-nagasaki.jp

SHA-256 Fingerprint

91:7A:80:9F:39:B1:95:98:CB:9A:75:CE:9E:4E:41:60:94:54:54:CF...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

none

cache-control

🔴 No Cache(no-cache, private, private)

content-encoding

📦 Gzip(gzip)

content-length

35298

content-type

text/html; charset=UTF-8

date

Mon, 11 May 2026 10:34:13 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

sv8133.xserver.jp

Domain Information

at-nagasaki.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

75/100

Mobile Friendly13 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...

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Typography & Readability

游ゴシック Medium + Lato

WCAG Partial

51/100

Readability

/30

18/30

14px · LH 1.50

Hierarchy

/20

8/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

9/25

3 fonts · 6 req

Heading Font

游ゴシック Medium

Sans

Body Font

Lato

Sans14px

Contrast Ratio

1:1

7 issues

Reading Comfort

~41 CPL

Narrow lines

32px

16px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 1.0:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFluid Type (rem)

Color Palette

6 unique colors

14.74:1 AAA Dark

#282828

Text· 49.9%

#ffffff

Background· 34.900000000000006%

#444a53

Secondary· 6.2%

#093479

Primary· 4.9%

#142c56

Accent· 0%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)connect.facebook.net(3)at-nagasaki.jp(3)youtube.com(2)bot.talkappi.com(2)

Website Identity

at-nagasaki.jp

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Instagram

Sponsored

Last analyzed: 11 May 2026 at 10:34

Historical Analysis & Change Tracking