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marshmallowchallenge.com

https://marshmallowchallenge.com· First analyzed 13 May 2026· Updated 13 May 2026
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marshmallowchallenge.com
Desktop screenshot of marshmallowchallenge.com
Mobile screenshot of marshmallowchallenge.com
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.192.147

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

greg.ns.cloudflare.com.lara.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
384 ms10%
Speed Index
499 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
11 KB
3 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

1 Technologies Detected

CDN

1
Cloudflare

SEO Analysis

B77/100
25
7
0
Meta Tags9/15
Content11/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images5/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile1/4
Indexability3/3
M
marshmallowchallenge.commarshmallowchallenge.com

Marshmallow Challenge

The Marshmallow Challenge is a simple, and instructive design activity that promotes and teaches valuable lessons in collaboration, innovation, and creativity.

Title Length21 chars

Recommended: 50-60 chars (~129px / 580px)

Description Length159 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    62 URLs

    62 sub-sitemaps

    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    17/100
    Poor
    5 12

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

    Sponsored

    AI & LLM Readiness

    B70/100
    Bot Access
    20/25
    Machine Read.
    16/25
    Schema Data
    16/25
    Citation
    18/25

    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
    navheader/footer
    Text ratio:34%
    Words:1,721
    Token eff.:Optimal
    Sections/1K:18
    Depth:2/5

    Structured Data

    5 JSON-LD
    FAQPage×1.5Article×1.2Organization×1.1WebSiteBreadcrumbList
    sameAs entity links

    Citation Readiness

    Opening Summary52w
    Descriptive Headingsavg 6.4w
    Canonical URL
    Open Graph3/3
    Twitter Card2/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (4)
    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
    80/100
    12
    Passed
    1
    Critical
    0
    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
    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.
    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.
    98/100
    A+
    1 mg
    CO₂e / view
    11.1 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    1 mg
    vs
    Returning (cached)
    <0.001 g
    Annual (10K/mo)
    132 g
    Emission Segments
    Data Center
    <0.001 g
    Network
    <0.001 g
    Device
    <0.001 g
    Resource Breakdown
    JavaScript
    911 B
    Images
    1.7 KB
    HTML
    8.5 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    A

    Security Score

    83%Very Good
    Static / Informational

    HTTPS

    WAF

    65d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    19.04.2026

    Valid Until

    18.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    www.marshmallowchallenge.com

    SHA-256 Fingerprint

    1E:0B:C8:C6:C2:AC:58:89:93:0E:A4:7E:CF:9C:10:49:A6:DF:EE:86...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    *
    alt-svc
    h3=":443"; ma=86400
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    cf-cache-status
    DYNAMIC
    cf-ray🇩🇪 Frankfurt
    9fb0cda73d625d70-FRA
    content-encoding
    ⚡ Brotli(br)
    Good Warning Issue

    Email Infrastructure

    Fastmail

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (2)

    in1-smtp.messagingengine.com
    in2-smtp.messagingengine.com

    Domain Information

    marshmallowchallenge.com

    Domain Age
    16y 3m

    Created

    09.02.2010

    Expires

    09.02.2028

    Last Updated

    11.01.2026

    Registrar

    GoDaddy.com, LLC

    DNSSEC
    Not Enabled

    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 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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    SF Pro Text

    WCAG AA
    82/100
    Readability
    /30
    27/30

    19px · LH 1.42

    Hierarchy
    /20
    17/20

    1.89x ratio · ✓ H1→H6

    WCAG
    /25
    22/25

    5.57:1 min contrast

    Performance
    /25
    16/25

    1 font

    Heading Font

    SF Pro Text

    Sans36px

    Body Font

    SF Pro Text

    Sans19px

    Contrast Ratio

    5.57:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~37 CPL

    Narrow lines
    36px
    h1
    24px
    h2
    21px
    h3
    19px
    p

    ✅ Excellent readability: 19px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.42 ratio (ideal range 1.4–1.6).

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.6:1).

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

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

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

    Buy on MyFontsFlesch 55

    Color Palette

    8 unique colors
    4.27:1 AA Large Light
    #ffffff
    Background· 78.29999999999998%
    #807976
    Other· 3.5%
    #49413a
    Primary· 4.2%

    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

    Website Identity

    Marshmallow Challenge Blog

    Marshmallow Challenge Blog

    Organization

    Marshmallow Challenge Blog

    info@marshmallowchallenge.com
    www.marshmallowchallenge.com/
    16 years old
    Location detected: 🇨🇦 Canadavia ip
    GoDaddy.com, LLC📧 Fastmailen

    Social Profiles

    X (Twitter)

    Sponsored

    Last analyzed: 13 May 2026 at 09:58

    Historical Analysis & Change Tracking