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yokohamafc.com

https://yokohamafc.com· First analyzed 15 May 2026· Updated 15 May 2026
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yokohamafc.com
Desktop screenshot of yokohamafc.com
Mobile screenshot of yokohamafc.com
Mobile

Sponsored

Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

34.8.137.92

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Kansas City, United States

ASN

AS396982

Organization

Google Cloud

Server

Google Frontend

Nameservers

ns-652.awsdns-17.net.ns-1314.awsdns-36.org.ns-1625.awsdns-11.co.uk.ns-214.awsdns-26.com.

Performance

78

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%
11.2 MB
118 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
Infrastructure
Hosting
Google Cloud Platform
CDN
Vercel Image

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Customer Support

1
Zendesk

Languages

1
Go

SEO Analysis

D56/100
16
10
0
Meta Tags5/15
Content8/12
Headings5/8
Technical12/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
Y
yokohamafc.comyokohamafc.com

TOP | 横浜FCオフィシャルウェブサイト

横浜FCの公式サイトです。ニュース、試合、チケット、選手・クラブメンバー等の情報をご覧いただけます。

Title Length22 chars

Recommended: 50-60 chars (~137px / 580px)

Description Length50 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    robots.txt

    Local SEO

    Local Search Readiness

    8/100
    Poor
    3 12 2

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

    Sponsored

    AI & LLM Readiness

    D41/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    0/25
    Citation
    8/25

    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:1%
    Words:721
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary49w
    Descriptive Headingsavg 1.4w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    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.
    C
    61/100
    7
    Passed
    7
    Critical
    2
    Warnings
    Images & Alt Text
    18/20
    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
    7/15
    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.
    3 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.
    39/100
    F
    1.15 g
    CO₂e / view
    11.2 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    1.32 g
    vs
    Returning (cached)
    660 mg
    Annual (10K/mo)
    138.6 kg
    Emission Segments
    Data Center
    57 mg
    Network
    339 mg
    Device
    759 mg
    Resource Breakdown
    JavaScript
    241.2 KB
    Images
    3.1 MB
    CSS
    7.2 MB
    Fonts
    370.8 KB
    HTML
    246.8 KB
    Other
    7.3 KB
    Green Hosting Verified
    Google Cloud
    GWF Verified
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    49d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    04.04.2026

    Valid Until

    03.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    yokohamafc.comwww.yokohamafc.com

    SHA-256 Fingerprint

    50:81:B5:4A:EF:D1:FA:E1:58:59:DA:31:36:43:96:F3:38:AA:F5:1B...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000
    cache-control
    🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=utf-8
    date
    Fri, 15 May 2026 10:01:01 GMT
    link
    </_next/static/media/e1689dbe909aa6ef-s.p.otf>; rel=preload;...
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

    alt4.aspmx.l.google.com
    alt1.aspmx.l.google.com
    alt2.aspmx.l.google.com
    aspmx.l.google.com

    +1 more

    Domain Information

    yokohamafc.com

    Domain Age
    27y 2m

    Created

    27.02.1999

    Expires

    27.02.2027

    Last Updated

    11.02.2026

    Registrar

    GMO Internet Group, Inc. d/b/a Onamae.com

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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.
    C
    68/100
    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=device-width, initial-scale=1
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Barlow Condensed + Hiragino Kaku Gothic ProN

    WCAG Fail
    56/100
    Readability
    /30
    17/30

    14px · LH 1.80

    Hierarchy
    /20
    8/20

    0.71x ratio

    WCAG
    /25
    13/25

    2.74:1 min contrast

    Performance
    /25
    18/25

    2 fonts · 5 req

    Heading Font

    Barlow Condensed

    Sans10px

    Body Font

    Hiragino Kaku Gothic ProN

    Sans14px

    Contrast Ratio

    2.74:1

    50 issues

    Reading Comfort

    ~36 CPL

    Narrow lines
    10px
    h1
    48px
    h2
    20px
    h3
    48px
    h4
    14px
    p

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

    ✅ Easy to read: Flesch score 80/100 — accessible to general audiences.

    ❌ Low contrast: 50 elements fail WCAG AA (min 2.7:1). Increase text/background contrast.

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

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

    ⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

    Buy on MyFontsFluid TypeFlesch 80

    Color Palette

    10 unique colors
    Light
    #ffffff
    Background· 21.3%
    #0170bc
    Accent· 18.5%
    #024983
    Primary· 14.5%
    #13a8f5
    Primary· 11.8%
    #a8c6dc
    Secondary· 8.5%
    #436a9d
    Secondary· 6%
    #01254f
    Accent· 5.7%
    #34497f
    Secondary· 5.2%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    29 Resources

    20
    Scripts
    9
    Styles
    20
    Async
    0
    Defer

    Top Script Sources

    local(18)google-analytics.com(1)googletagmanager.com(1)

    Website Identity

    yokohamafc.com

    partner@yokohamafc.com
    27 years old
    Location detected: 🇺🇸 United Statesvia ip
    GMO Internet Group, Inc. d/b/a Onamae.com📧 Google Workspaceja

    Sponsored

    Last analyzed: 15 May 2026 at 10:01

    Historical Analysis & Change Tracking