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ebrary.net

https://ebrary.net· First analyzed 08 May 2026· Updated 08 May 2026
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ebrary.net
Desktop screenshot of ebrary.net
Mobile screenshot of ebrary.net
Mobile

Sponsored

Hosting Provider

ISPIRIA Networks Ltd

IP Address

5.45.72.163

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 Dronten, Netherlands

ASN

AS58061

Organization

ISPIRIA Networks Ltd

Server

Nginx

Nameservers

ns1.dyna-ns.net.ns2.dyna-ns.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
515 ms10%
Speed Index
670 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
699 KB
70 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
ISPIRIA Networks Ltd

Technology Stack

13 Technologies Detected

Advertising

5
Google AdsGoogle AdSenseCriteoTaboolaOutbrain

CSS Frameworks

2
Tailwind CSS
Normalize.css

Analytics

2
Google Analytics
Google Analytics 4

Icon Libraries

1
Material Icons

Fonts

1
Google Fonts

Web Servers

1
Nginx

Customer Support

1
Zendesk

SEO Analysis

D55/100
13
10
2
Meta Tags10/15
Content10/12
Headings6/8
Technical12/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
E
ebrary.netebrary.net

Academic library - free online college e textbooks

No description available for this page.

Title Length50 chars

Recommended: 50-60 chars (~297px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (3/4) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

33 rules

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.

Sponsored

AI & LLM Readiness

F24/100
Bot Access
20/25
Machine Read.
3/25
Schema Data
0/25
Citation
1/25

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:16%
Words:15,117
Token eff.:Excessive

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
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.
C
62/100
10
Passed
4
Critical
1
Warnings
Images & Alt Text
5/20
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
10/15
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
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
42/100
B
86 mg
CO₂e / view
698.9 KB
Page Weight
80%
Cleaner Than
New Visitor
99 mg
vs
Returning (cached)
49 mg
Annual (10K/mo)
10.4 kg
Emission Segments
Data Center
19 mg
Network
21 mg
Device
46 mg
Resource Breakdown
JavaScript
604.1 KB
Images
12.2 KB
CSS
36.2 KB
Fonts
6.2 KB
HTML
39.8 KB
Other
300 B
Green Hosting Not Verified
ISPIRIA Networks Ltd
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

85d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

03.05.2026

Valid Until

01.08.2026

Subject Alternative Names (3)

ebrary.netm.ebrary.netwww.ebrary.net

SHA-256 Fingerprint

D7:59:BB:11:56:0F:8E:1D:E4:08:5F:69:DC:C6:EA:7B:0B:DF:0C:BF...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)
content-encoding
📦 Gzip(gzip)
content-type
text/html; charset=UTF-8
date
Fri, 08 May 2026 14:04:54 GMT
expires
Mon, 26 Jul 1997 05:00:00 GMT
last-modified
Tue, 05 May 2026 12:01:07 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mx.ebrary.net

Domain Information

ebrary.net

Domain Age
10y 4m

Created

24.12.2015

Expires

24.12.2026

Last Updated

12.06.2025

Registrar

Dynadot Inc

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
Privacy policy page linked
Data Protection Officer mentioned
Legitimate interest basis 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
73/100
Mobile Friendly11 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=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG AAA
64/100
Readability
/30
12/30

12px · LH 1.33

Hierarchy
/20
14/20

1.46x ratio · ✓ H1→H6

WCAG
/25
20/25

7.93:1 min contrast

Performance
/25
18/25

2 fonts · 3 req

Heading Font

Open Sans

Sans18px

Body Font

Open Sans

Sans12px

Contrast Ratio

7.93:1

WCAG AAA (≥7:1)

Reading Comfort

~39 CPL

Narrow lines
18px
h1
14px
h2
12px
p

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.9:1).

✅ 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.

GGoogle FontsFlesch 0

Color Palette

6 unique colors
5.74:1 AA Dark
#666666
Other· 59.599999999999994%
#ffffff
Background· 22.1%
#7c899a
Primary· 1.4%
#32537d
Secondary· 1.2%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Google AdsEnterprise

Ad platforms and retargeting pixels

2

Categories

2

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google AdSenseGoogle Ad ManagerMedia.netSovrnPubMaticOpenXIndex ExchangePrebid.js

Sponsored

Scripts & Styles

18 Resources

15
Scripts
3
Styles
8
Async
0
Defer

Top Script Sources

player.bidmatic.io(4)pagead2.googlesyndication.com(2)securepubads.g.doubleclick.net(2)fundingchoicesmessages.google.com(2)googletagmanager.com(1)

Website Identity

ebrary.net

10 years old
Location detected: 🇳🇱 Netherlandsvia ip
Dynadot Inc

Sponsored

Last analyzed: 08 May 2026 at 14:05

Historical Analysis & Change Tracking