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coldcard.com

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

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.145.90

Site Location

🇨🇦 Toronto, Canadavia schema_nap

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

cody.ns.cloudflare.com.lily.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
643 ms10%
Speed Index
836 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.1 MB
63 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

7 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.7.1

UI Components

1
Slick Carousel

CDN

1
Cloudflare

SEO Analysis

A82/100
25
4
0
Meta Tags14/15
Content12/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images3/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile2/4
Indexability3/3
C
coldcard.comcoldcard.com

COLDCARD - Most Trusted Bitcoin Signing Device

COLDCARD is the most trusted Bitcoin-only hardware wallet, built by Coinkite Inc. Open source, air-gapped, and designed for sovereign Bitcoin storage.

Title Length46 chars

Recommended: 50-60 chars (~279px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    123 URLs

    robots.txt

    17 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    27/100
    Needs Work
    7 13

    Sponsored

    AI & LLM Readiness

    B78/100
    Bot Access
    22/25
    Machine Read.
    22/25
    Schema Data
    18/25
    Citation
    16/25

    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.txtvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    navheader/footer
    Text ratio:18%
    Words:2,674
    Token eff.:Optimal
    Sections/1K:43.8
    Depth:2/5

    Structured Data

    16 JSON-LD
    FAQPage×1.5Person×1.3Organization×1.1WebSiteProductVideoObjectSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary50w
    Descriptive Headingsavg 4.5w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    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
    83/100
    14
    Passed
    1
    Critical
    3
    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
    4/15
    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.
    54/100
    B
    111 mg
    CO₂e / view
    1.1 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    127 mg
    vs
    Returning (cached)
    64 mg
    Annual (10K/mo)
    13.4 kg
    Emission Segments
    Data Center
    6 mg
    Network
    33 mg
    Device
    73 mg
    Resource Breakdown
    JavaScript
    71.6 KB
    Images
    739.8 KB
    CSS
    275.0 KB
    HTML
    16.2 KB
    Green Hosting Verified
    Cloudflare
    Provider Match
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    100%Excellent
    Static / Informational

    HTTPS

    WAF

    40d

    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

    27.03.2026

    Valid Until

    25.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    coldcard.com*.coldcard.com

    SHA-256 Fingerprint

    62:BB:04:90:45:14:29:7B:D5:C3:92:4A:5F:83:C6:D3:1A:93:DA:28...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cf-cache-status
    DYNAMIC
    cf-ray🇮🇹 Milan
    9fc4e96b7abeedca-MXP
    content-encoding
    zstd
    content-security-policy
    default-src 'self'; script-src 'self' 'unsafe-inline' https:...
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    80

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    Domain Information

    coldcard.com

    Domain Age
    22y 9m

    Created

    27.07.2003

    Expires

    27.07.2031

    Last Updated

    04.10.2021

    Registrar

    Name.com, Inc.

    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
    63/100
    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

    GT Planar

    WCAG Partial
    63/100
    Readability
    /30
    24/30

    16px · LH 1.75

    Hierarchy
    /20
    16/20

    7.5x ratio · ✓ H1→H6

    WCAG
    /25
    10/25

    1:1 min contrast

    Performance
    /25
    13/25

    1 font · 4 req

    Heading Font

    GT Planar

    Sans120px

    Body Font

    GT Planar

    Sans16px

    Contrast Ratio

    1:1

    28 issues

    Reading Comfort

    ~39 CPL

    Narrow lines
    120px
    h1
    66px
    h2
    120px
    h3
    44px
    h4
    16px
    p

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

    ⚠️ Partial contrast: 28 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 7.5x larger than body text.

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

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

    Buy on MyFontsFlesch 51

    Color Palette

    9 unique colors
    15.51:1 AAA Light
    #ffffff
    Background· 57.1%
    #252422
    Other· 5.4%
    #f0f1f3
    Primary· 13.9%
    #020303
    Secondary· 9.3%
    #594841
    Secondary· 3.6%
    #dbd7d0
    Secondary· 2.3%
    #440b0c
    Accent· 1.5%

    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

    9 Resources

    5
    Scripts
    4
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    local(4)googletagmanager.com(1)

    Website Identity

    COLDCARD

    COLDCARD

    Organization

    COLDCARD is the most trusted Bitcoin-only hardware wallet, built by Coinkite Inc. Open source, air-gapped, and designed for sovereign Bitcoin storage.

    22 years old

    Toronto

    Toronto, ON

    CA

    Location detected: 🇨🇦 Canada, Torontovia schema_nap
    Name.com, Inc.enEst. 2012

    Social Profiles

    GitHubTelegram

    Sponsored

    Last analyzed: 15 May 2026 at 20:32

    Historical Analysis & Change Tracking