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carterbloodcare.org

https://carterbloodcare.org· First analyzed 31 May 2026· Updated 31 May 2026
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carterbloodcare.org
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Mobile

Sponsored

Hosting Provider

WP Engine
wpengine.com

IP Address

141.193.213.10

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

udns1.ultradns.net.udns2.ultradns.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
252 ms10%
Speed Index
328 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.3 MB
126 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
cbcCustom

Technology Stack

14 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Libraries

2
jQueryv3.7.1
jQuery UI

Plugins

2
Ultimate Social Media Icons
Yoast SEO

UI Components

1
Swiper

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Customer Support

1
LiveChat

CDN

1
Cloudflare

SEO Analysis

A84/100
22
6
0
Meta Tags15/15
Content11/12
Headings5/8
Technical24/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
C
carterbloodcare.orgcarterbloodcare.org

Carter BloodCare – Become a Blood Donor & Give Life

When you donate blood with CBC, you're changing the lives of Texans. Donate plasma, platelets or whole blood at one of our many donor centers.

Title Length51 chars

Recommended: 50-60 chars (~313px / 580px)

Description Length142 chars

Recommended: 120-160 chars

Issues (0)

    6 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    20 URLs

    20 sub-sitemaps

    robots.txt

    5 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    37/100
    Needs Work
    11 8

    Sponsored

    AI & LLM Readiness

    D55/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    7/25
    Citation
    17/25

    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
    nav
    Text ratio:4%
    Words:771
    Token eff.:Optimal
    Sections/1K:5.2
    Depth:1/5

    Structured Data

    5 JSON-LD
    Organization×1.1WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary17w
    Descriptive Headingsavg 19w
    Canonical URL
    Open Graph3/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    82/100
    13
    Passed
    3
    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
    15/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    7/15
    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.
    43/100
    D
    240 mg
    CO₂e / view
    2.3 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    274 mg
    vs
    Returning (cached)
    137 mg
    Annual (10K/mo)
    28.8 kg
    Emission Segments
    Data Center
    12 mg
    Network
    71 mg
    Device
    158 mg
    Resource Breakdown
    JavaScript
    702.2 KB
    Images
    1.0 MB
    CSS
    606.1 KB
    HTML
    17.9 KB
    Green Hosting Verified
    Google Cloud
    GWF Verified
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    WAF

    41d

    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

    12.04.2026

    Valid Until

    11.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    www.carterbloodcare.org

    SHA-256 Fingerprint

    D4:CC:6C:0C:8E:14:2B:B1:31:BC:4B:FF:45:0D:77:BA:08:A5:E0:29...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    age
    127
    alt-svc
    h3=":443"; ma=86400
    cache-control
    🟡 600s(max-age=600, must-revalidate)
    cf-cache-status
    HIT
    cf-ray🇮🇹 Milan
    a047b9707869edda-MXP
    content-encoding
    ⚡ Brotli(br)
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    93

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (2)

    mx2.hc6862-32.iphmx.com
    mx1.hc6862-32.iphmx.com

    Domain Information

    carterbloodcare.org

    Domain Age
    28y 8m

    Created

    16.09.1997

    Expires

    15.09.2029

    Last Updated

    24.07.2024

    Registrar

    Network Solutions, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked
    Data subject rights referenced

    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
    70/100
    Mobile Friendly9 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, maximum-scale=1
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Helvetica

    WCAG Partial
    67/100
    Readability
    /30
    23/30

    18px · LH 1.33

    Hierarchy
    /20
    14/20

    2.67x ratio

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    16/25

    1 font

    Heading Font

    Helvetica

    Sans48px

    Body Font

    Helvetica

    Sans18px

    Contrast Ratio

    1:1

    23 issues

    Reading Comfort

    ~33 CPL

    Narrow lines
    48px
    h1
    48px
    h2
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

    ⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.0:1).

    ❌ Broken heading hierarchy: 3 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

    ✅ Strong hierarchy: Headlines are 2.7x larger than body text.

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

    Buy on MyFontsFlesch 67

    Color Palette

    7 unique colors
    Light
    #ffffff
    Background· 20.9%
    #1e6d84
    Accent· 34%
    #2c7c95
    Accent· 24.999999999999996%
    #85969e
    Secondary· 7%
    #a60422
    Primary· 6.4%
    #e4e9eb
    Secondary· 4.1%
    #525d67
    Secondary· 2.6%

    Business & Marketing Stack

    5 Tools Detected

    Enterprise

    Customer Support

    1
    LiveChatMid-Market

    Live chat and helpdesk tools

    Behavior Analytics

    2
    Google AnalyticsFree
    Google Tag ManagerFree

    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

    4

    Categories

    5

    Total Tools

    0

    Enterprise

    2

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    24 Resources

    20
    Scripts
    4
    Styles
    13
    Async
    0
    Defer

    Top Script Sources

    maps.googleapis.com(6)connect.facebook.net(5)googletagmanager.com(5)c1.rfihub.net(1)cdn.boomtrain.com(1)

    Website Identity

    Carter BloodCare

    Carter BloodCare

    Organization

    When you donate blood with CBC, you're changing the lives of Texans. Donate plasma, platelets or whole blood at one of our many donor centers.

    1-800-366-2834
    www.carterbloodcare.org/
    28 years old
    Location detected: 🇺🇸 United Statesvia ip
    Network Solutions, LLCen-US

    Sponsored

    Last analyzed: 31 May 2026 at 17:33

    Historical Analysis & Change Tracking

    carterbloodcare.org Technology Stack - Built With jQuery, jQuery UI, Swiper, Modernizr, Tailwind CSS | StackOptic | StackOptic