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goryokaku-tower.co.jp

https://goryokaku-tower.co.jp· First analyzed 21 May 2026· Updated 21 May 2026
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goryokaku-tower.co.jp
Desktop screenshot of goryokaku-tower.co.jp
Mobile screenshot of goryokaku-tower.co.jp
Mobile

Sponsored

Hosting Provider

KDDI Web Communications Inc.

IP Address

194.91.14.8

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Minato, Japan

ASN

AS9597

Organization

KDDI Web Communications Inc.

Server

Apache

Nameservers

ns6.cpi.ad.jp.ns7.cpi.ad.jp.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
957 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
5 MB
98 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
gt_2019Custom

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Libraries

1
jQueryv3.7.1

UI Components

1
Swiper

Icon Libraries

1
Font Awesome

Web Servers

1
Apache

SEO Analysis

B70/100
20
8
0
Meta Tags10/15
Content8/12
Headings8/8
Technical17/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
G
goryokaku-tower.co.jpgoryokaku-tower.co.jp

函館・五稜郭タワー | 公式ウェブサイト - Goryokaku Tower

函館・五稜郭タワーの公式サイトです。展望台からは特別史跡五稜郭の美しい星形と函館市街や函館山を見ることができます。2006年4月1日にオープンした高さ107mの五稜郭タワーは函館のランドマークです。

Title Length38 chars

Recommended: 50-60 chars (~239px / 580px)

Description Length99 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    16 URLs

    16 sub-sitemaps

    robots.txt

    6 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    14/100
    Poor
    4 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

    F35/100
    Bot Access
    20/25
    Machine Read.
    6/25
    Schema Data
    0/25
    Citation
    9/25

    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. listsnavheader/footer
    Text ratio:6%
    Words:206
    Token eff.:Too Short
    Sections/1K:106.8
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 1.2w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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.
    B
    70/100
    8
    Passed
    4
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    9/15
    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...
    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.
    11/100
    F
    637 mg
    CO₂e / view
    5.0 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    728 mg
    vs
    Returning (cached)
    364 mg
    Annual (10K/mo)
    76.5 kg
    Emission Segments
    Data Center
    142 mg
    Network
    153 mg
    Device
    342 mg
    Resource Breakdown
    JavaScript
    72.3 KB
    Images
    3.6 MB
    CSS
    1.4 MB
    HTML
    13.4 KB
    Green Hosting Not Verified
    KDDI Web Communications Inc.
    8 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    D

    Security Score

    56%Poor
    Interactive

    HTTPS

    No WAF

    283d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Japan Registry Services Co., Ltd.

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    31.01.2026

    Valid Until

    28.02.2027

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    www.goryokaku-tower.co.jpgoryokaku-tower.co.jp

    SHA-256 Fingerprint

    4D:CE:AF:F6:30:9B:19:A4:8E:9E:67:12:8B:7D:B0:0E:E4:08:56:71...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-length
    13404
    content-type
    text/html; charset=UTF-8
    date
    Thu, 21 May 2026 05:19:49 GMT
    link
    <https://www.goryokaku-tower.co.jp/>; rel=shortlink
    server
    Apache
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    vlmx-air.secure.ne.jp

    Domain Information

    goryokaku-tower.co.jp

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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
    53/100
    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=1340
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    游ゴシック Medium

    WCAG Partial
    55/100
    Readability
    /30
    14/30

    13px · LH 1.80

    Hierarchy
    /20
    13/20

    1.08x ratio

    WCAG
    /25
    14/25

    4.23:1 min contrast

    Performance
    /25
    14/25

    1 font

    Heading Font

    游ゴシック Medium

    Sans14px

    Body Font

    游ゴシック Medium

    Sans13px

    Contrast Ratio

    4.23:1

    4 issues

    Reading Comfort

    ~53 CPL

    Optimal (45–75)
    14px
    h1
    24px
    h2
    18px
    h3
    14px
    h4
    13px
    p
    Minor Second
    Scale

    ❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

    ✅ Optimal line length: ~53 chars/line (ideal 45–75 CPL).

    ⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 4.2:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

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

    Buy on MyFontsFlesch 54

    Color Palette

    14 unique colors
    Light
    #8ea08d
    Secondary· 6.2%
    #fefffe
    Primary· 11.7%
    #5c654e
    Secondary· 11.5%
    #7d856a
    Secondary· 9.3%
    #7c975f
    Secondary· 9%
    #7999ae
    Secondary· 8.6%
    #587469
    Secondary· 7.8%
    #3c5f8a
    Secondary· 7.5%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    Social Media

    1
    Facebook SDKFree

    Social widgets and sharing tools

    3

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    26 Resources

    17
    Scripts
    9
    Styles
    8
    Async
    1
    Defer

    Top Script Sources

    goryokaku-tower.co.jp(6)tripadvisor.jp(2)googletagmanager.com(2)static.tacdn.com(2)jscache.com(2)

    Website Identity

    goryokaku-tower.co.jp

    Location detected: 🇯🇵 Japanvia tld
    ja

    Sponsored

    Last analyzed: 21 May 2026 at 05:20

    Historical Analysis & Change Tracking