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standardebooks.org

https://standardebooks.org· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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standardebooks.org
Desktop screenshot of standardebooks.org
Mobile screenshot of standardebooks.org
Mobile

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Hosting Provider

DigitalOcean
digitalocean.com

IP Address

157.230.1.133

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 North Bergen, United States

ASN

AS14061

Organization

DigitalOcean, LLC

Server

Apache

Nameservers

ns2.digitalocean.com.ns1.digitalocean.com.ns3.digitalocean.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
997 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
415 KB
21 requests

Image Optimization

Lazy LoadAVIFResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
DigitalOcean

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

1 Technologies Detected

Web Servers

1
Apache

SEO Analysis

B73/100
23
3
1
Meta Tags8/15
Content12/12
Headings8/8
Technical18/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
S
standardebooks.orgstandardebooks.org

Standard Ebooks: Free and liberated ebooks, carefully produced for ...

Free and liberated ebooks, carefully produced for the true book lover. Download free ebooks with professional-quality formatting and typography, in formats c...

Title truncated. Description truncated.
Title Length86 chars

Recommended: 50-60 chars (~517px / 580px)

Description Length185 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (86 chars, ~517px). Will be truncated in search results.

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

8,558 URLs

robots.txt

10 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100
Poor
1 14 2

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

D51/100
Bot Access
20/25
Machine Read.
16/25
Schema Data
0/25
Citation
15/25

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:32%
Words:724
Token eff.:Optimal
Sections/1K:11
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary29w
Descriptive Headingsavg 4w
Canonical URL
Open Graph2/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
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.
81/100
A
42 mg
CO₂e / view
415.2 KB
Page Weight
90%
Cleaner Than
New Visitor
48 mg
vs
Returning (cached)
24 mg
Annual (10K/mo)
5.0 kg
Emission Segments
Data Center
2 mg
Network
12 mg
Device
28 mg
Resource Breakdown
Images
83.6 KB
CSS
228.0 KB
Fonts
99.0 KB
HTML
4.6 KB
Green Hosting Verified
DigitalOcean
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A+

Security Score

98%Excellent
Static / Informational

HTTPS

No WAF

87d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.04.2026

Valid Until

25.07.2026

Subject Alternative Names (4)

standardebooks.comstandardebooks.orgwww.standardebooks.comwww.standardebooks.org

SHA-256 Fingerprint

75:92:B6:F3:C6:BD:B3:53:6E:9F:9B:E6:B4:76:6E:67:D6:4A:67:4A...

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store)
content-encoding
📦 Gzip(gzip)
content-length
4373
content-security-policy
default-src 'self'; style-src 'self' 'unsafe-inline';
content-type
text/html; charset=UTF-8
date
Wed, 29 Apr 2026 17:09:28 GMT
Good Warning Issue

Email Infrastructure

Zoho Mail

Score

70

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (3)

mx.zoho.com
mx3.zoho.com
mx2.zoho.com

Domain Information

standardebooks.org

Domain Age
11y 11m

Created

07.05.2014

Expires

07.05.2029

Last Updated

10.07.2023

Registrar

Name.com, Inc.

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.
C
65/100
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

League Spartan + Crimson Pro

WCAG Partial
77/100
Readability
/30
24/30

19px · LH 1.50

Hierarchy
/20
16/20

3.18x ratio · ✓ H1→H6

WCAG
/25
19/25

3.23:1 min contrast

Performance
/25
18/25

2 fonts · 4 req

Heading Font

League Spartan

Sans62px

Body Font

Crimson Pro

Serif19px

Contrast Ratio

3.23:1

1 issue

Reading Comfort

~40 CPL

Narrow lines
62px
h1
48px
h2
44px
h3
19px
p

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

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

⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 3.2:1).

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

✅ Strong hierarchy: Headlines are 3.2x larger than body text.

Buy on MyFontsFlesch 41

Color Palette

12 unique colors
Dark
#303237
Other· 15.600000000000001%
#384450
Primary· 17.5%
#eae7e0
Secondary· 11.8%
#c1967f
Secondary· 9%
#bf665e
Secondary· 7.9%
#fbfbfa
Text· 5.8%
#84876b
Secondary· 5.6%
#8d3f42
Secondary· 5.1%

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Scripts & Styles

2 Resources

0
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

standardebooks.org

11 years old
Location detected: 🇺🇸 United Statesvia ip
Name.com, Inc.📧 Zoho Mailen-US

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Last analyzed: 29 Apr 2026 at 17:09

Historical Analysis & Change Tracking