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masterbooks.com

https://masterbooks.com· First analyzed 31 May 2026· Updated 31 May 2026
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masterbooks.com
Desktop screenshot of masterbooks.com
Mobile screenshot of masterbooks.com
Mobile

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Hosting Provider

LexiConn Internet Services, Inc.

IP Address

216.38.6.84

Site Location

🇺🇸 United Statesvia schema_nap

Server Location

🇺🇸 Arlington Heights, United States

ASN

AS32181

Organization

LexiConn Internet Services, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

brit.ns.cloudflare.com.fonzie.ns.cloudflare.com.

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
279 KB
57 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Framework
Alpine.js
Styling
Tailwind CSS
CMS
Magento
Infrastructure
Hosting
LexiConn Internet Services, Inc.
CDN
Cloudflare

Technology Stack

12 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelFullStory

Frameworks

1
Alpine.js

Libraries

1
Lodashv4.17.21

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

Customer Support

1
Zendesk

Security

1
reCAPTCHA

SEO Analysis

B75/100
23
4
0
Meta Tags13/15
Content6/12
Headings5/8
Technical23/25
E-E-A-T2/7
Images6/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
M
masterbooks.commasterbooks.com

Master Books Christian Homeschool Curriculum

Academically effective Christian homeschool curriculum with a bible-based approach in all subjects, grades K-12.

Title Length44 chars

Recommended: 50-60 chars (~270px / 580px)

Description Length112 chars

Recommended: 120-160 chars

Issues (0)

    4 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    2,648 URLs

    robots.txt

    52 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    27/100
    Needs Work
    8 14

    Sponsored

    AI & LLM Readiness

    D51/100
    Bot Access
    20/25
    Machine Read.
    10/25
    Schema Data
    7/25
    Citation
    14/25

    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:1%
    Words:783
    Token eff.:Optimal
    Depth:1/5

    Structured Data

    2 JSON-LD
    Organization×1.1WebSiteSearchAction
    sameAs entity links

    Citation Readiness

    Opening Summary24w
    Descriptive Headingsavg 1w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    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.
    B
    74/100
    12
    Passed
    3
    Critical
    3
    Warnings
    Images & Alt Text
    18/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    13/20
    Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
    Forms & Inputs
    8/15
    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
    13/15
    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.
    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.
    60/100
    A+
    34 mg
    CO₂e / view
    278.5 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    39 mg
    vs
    Returning (cached)
    20 mg
    Annual (10K/mo)
    4.1 kg
    Emission Segments
    Data Center
    8 mg
    Network
    8 mg
    Device
    19 mg
    Resource Breakdown
    JavaScript
    135.4 KB
    HTML
    140.0 KB
    Other
    3.1 KB
    Green Hosting Not Verified
    LexiConn Internet Services, Inc.
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    65%Fair
    Critical / Transactional

    HTTPS

    WAF

    55d

    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

    26.04.2026

    Valid Until

    25.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    masterbooks.com*.masterbooks.com

    SHA-256 Fingerprint

    74:1E:9B:22:FD:E2:DA:D7:1D:83:5D:40:EE:A7:31:7A:C8:0A:00:70...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-headers
    Origin, X-Requested-With, Content-Type, Accept
    access-control-allow-origin
    *
    alt-svc
    h3=":443"; ma=86400
    cache-control
    🔴 No Cache(no-store, no-cache, must-revalidate, max-age=0)
    cf-cache-status
    DYNAMIC
    cf-ray
    a046d01d8e7a426d-EWR
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    masterbooks-com.mail.protection.outlook.com

    Domain Information

    masterbooks.com

    Domain Age
    24y 2m

    Created

    29.03.2002

    Expires

    29.03.2027

    Last Updated

    19.09.2024

    Registrar

    Cloudflare, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    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.
    B
    79/100
    Mobile Friendly31 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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Segoe UI

    WCAG Partial
    71/100
    Readability
    /30
    23/30

    16px · LH 1.50

    Hierarchy
    /20
    11/20

    1.25x ratio

    WCAG
    /25
    17/25

    2.6:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Segoe UI

    Sans20px

    Body Font

    Segoe UI

    Sans16px

    Contrast Ratio

    2.6:1

    20 issues

    Reading Comfort

    Single Font Family

    left aligned
    20px
    h1
    30px
    h3
    16px
    h4
    16px
    p
    Major Second
    Scale

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 20 elements below WCAG AA threshold (min 2.6:1).

    ⚠️ 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.

    ✅ System fonts: Zero font loading delay — best possible LCP impact.

    Flesch 65

    Color Palette

    11 unique colors
    4.78:1 AA Light
    #ffffff
    Background· 40.99999999999999%
    #76726b
    Other· 7.5%
    #cdc5b3
    Primary· 7.2%
    #8ca394
    Secondary· 6.5%
    #2d2523
    Text· 6.2%
    #b9784b
    Secondary· 6%
    #714632
    Secondary· 5.1%
    #c4a88e
    Secondary· 4.8%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    22 Resources

    17
    Scripts
    5
    Styles
    9
    Async
    3
    Defer

    Top Script Sources

    cdn.masterbooks.com(4)connect.facebook.net(2)googletagmanager.com(2)youtube.com(2)static.trackedweb.net(2)

    Website Identity

    Master Books

    Master Books

    Organization
    [email protected]
    www.masterbooks.com/
    24 years old
    Location detected: 🇺🇸 United Statesvia schema_nap
    Cloudflare, Inc.📧 Microsoft 365en

    Sponsored

    Last analyzed: 31 May 2026 at 14:54

    Historical Analysis & Change Tracking

    masterbooks.com Technology Stack - Built With Alpine.js, Lodash, Modernizr, Tailwind CSS, Google Analytics | StackOptic | StackOptic