fourminutebooks.com

https://fourminutebooks.com· First analyzed 13 May 2026· Updated 13 May 2026

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fourminutebooks.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.49.101

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

georgia.ns.cloudflare.com.aragorn.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

283 ms10%

Speed Index

368 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

41 KB

63 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPress

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

22 Technologies Detected

Plugins

Convertkit

Contact Form 7

Honeypot Inline Footnotes Table Of Contents Plus Add Search To Menu Share This Image Perfmatters Copy The Code Yet Another Stars Rating

Analytics

CSS Frameworks

Libraries

Icon Libraries

Fonts

Tag Managers

Email Marketing

CDN

SEO Analysis

B73/100

Meta Tags14/15

Content3/12

Headings8/8

Technical22/25

E-E-A-T0/7

Images5/7

Links2/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

fourminutebooks.comfourminutebooks.com

Four Minute Books - Learn From 1,300+ of the Best Books for Free

Four Minute Books will make you smarter in 4 minutes or less. Browse our list of over 1,300 free book summaries and start learning!

Title Length64 chars

Recommended: 50-60 chars (~395px / 580px)

Description Length131 chars

Recommended: 120-160 chars

Issues (1)

• Very thin content (13 words). Search engines need substantial content for ranking.

6 issues found

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Crawlability

Sitemap

robots.txt

5 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

10/100

Poor

3 13 1

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

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AI & LLM Readiness

D41/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

4/25

Citation

10/25

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

Text ratio:1%

Words:791

Token eff.:Optimal

Structured Data

5 JSON-LD

WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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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.

78/100

Passed

Critical

Warnings

Images & Alt Text

10/20

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

11/15

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...

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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.

74/100

A+

4 mg

CO₂e / view

41.4 KB

Page Weight

95%

Cleaner Than

New Visitor

5 mg

Returning (cached)

2 mg

Annual (10K/mo)

504 g

Emission Segments

Data Center

<0.001 g

Network

1 mg

Device

3 mg

Resource Breakdown

HTML

41.4 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Interactive

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

25.03.2026

Valid Until

23.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

fourminutebooks.com*.fourminutebooks.com

SHA-256 Fingerprint

56:28:10:8B:26:50:D7:06:CF:84:CC:A3:26:70:ED:76:44:F1:8B:84...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

768

alt-svc

h3=":443"; ma=86400

cache-control

🟡 60s(s-maxage=31536000, max-age=60)

cf-cache-status

DYNAMIC

cf-ray

9fb220848849d59a-SJC

content-encoding

zstd

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx3.googlemail.com

aspmx.l.google.com

aspmx2.googlemail.com

alt1.aspmx.l.google.com

+1 more

Domain Information

fourminutebooks.com

Domain Age

10y 4m

Created

24.12.2015

Expires

24.12.2027

Last Updated

12.06.2024

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

81/100

Mobile Friendly56 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto Slab + Open Sans

WCAG Partial

72/100

Readability

/30

26/30

20px · LH 1.70

Hierarchy

/20

13/20

1.4x ratio · ✓ H1→H6

WCAG

/25

17/25

2.72:1 min contrast

Performance

/25

16/25

2 fonts · 4 req

Heading Font

Roboto Slab

Sans28px

Body Font

Open Sans

Sans20px

Contrast Ratio

2.72:1

9 issues

Reading Comfort

Dual Sans-Serif

left aligned

28px

24px

14px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Easy to read: Flesch score 73/100 — accessible to general audiences.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 2.7:1).

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

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

✅ Lean font stack: 2 font families keeps load times fast.

GGoogle Fonts Buy on MyFontsFlesch 73

Color Palette

6 unique colors

4.82:1 AA Light

#ffffff

Background· 48.99999999999999%

#6f736e

Other· 1.7%

#62af3c

Primary· 0%

#73b650

Secondary· 7.3%

#b5cda6

Secondary· 3.5%

#e3ebde

Secondary· 1.6%

Business & Marketing Stack

4 Tools Detected

Enterprise

Marketing Automation

ConvertKitCreator

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

fourminutebooks.com(14)connect.facebook.net(2)googletagmanager.com(2)tw.rightmessage.com(1)google-analytics.com(1)

Website Identity

Four Minute Books - Learn From 1,300+ of the Best Books for Free

Four Minute Books will make you smarter in 4 minutes or less. Browse our list of over 1,300 free book summaries and start learning!

fourminutebooks.com/

10 years old

Location detected: 🇨🇦 Canadavia ip

GoDaddy.com, LLC📧 Google Workspaceen-US

Social Profiles

Facebook X (Twitter)Instagram YouTube TikTok Pinterest

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Last analyzed: 13 May 2026 at 13:50

Historical Analysis & Change Tracking