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djvu.org

https://djvu.org· First analyzed 15 May 2026· Updated 15 May 2026
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djvu.org
Desktop screenshot of djvu.org
Mobile screenshot of djvu.org
Mobile

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Hosting Provider

LiteSpeed
cloudflare.com

IP Address

104.21.32.212

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ridge.ns.cloudflare.com.lauryn.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
369 ms10%
Speed Index
480 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
75 KB
19 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
WMD ThemeCustom

Technology Stack

2 Technologies Detected

CDN

1
Cloudflare

Plugins

1
Yoast SEO

SEO Analysis

C66/100
18
7
1
Meta Tags14/15
Content5/12
Headings8/8
Technical15/25
E-E-A-T0/7
Images4/7
Links2/5
URL5/5
Social4/5
Freshness2/4
Mobile4/4
Indexability3/3
D
djvu.orgdjvu.org

DjVu.org - the premier menu for djvu resources

Discover DjVu document technology — a file format and resources for compressing, viewing, and converting scanned documents efficiently on the web.

Title Length46 chars

Recommended: 50-60 chars (~286px / 580px)

Description Length146 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

7 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.

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AI & LLM Readiness

F35/100
Bot Access
20/25
Machine Read.
4/25
Schema Data
0/25
Citation
11/25

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:4%
Words:148
Token eff.:Too Short
Sections/1K:13.5

Structured Data

No Schema

Citation Readiness

Opening Summary53w
Descriptive Headingsavg 2w
Canonical URL
Open Graph2/3
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.
B
77/100
11
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
14/20
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
12/15
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.

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.
55/100
A+
9 mg
CO₂e / view
75.4 KB
Page Weight
95%
Cleaner Than
New Visitor
11 mg
vs
Returning (cached)
5 mg
Annual (10K/mo)
1.1 kg
Emission Segments
Data Center
2 mg
Network
2 mg
Device
5 mg
Resource Breakdown
Images
9.5 KB
CSS
58.3 KB
HTML
7.6 KB
Green Hosting Not Verified
LiteSpeed
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

WAF

56d

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 (2)

djvu.org*.djvu.org

SHA-256 Fingerprint

E6:13:79:B8:FA:A9:41:7E:D2:F7:C5:4C:9E:88:E0:38:DE:6A:D3:B2...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
9fc5db664bd57856-CDG
content-encoding
zstd
content-type
text/html; charset=UTF-8
date
Fri, 15 May 2026 23:17:36 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

djvu.org

Domain Age
24y 4m

Created

29.12.2001

Expires

29.12.2026

Last Updated

12.02.2026

Registrar

Register.com - Network Solutions, LLC

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.
D
49/100
Not 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.
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

trebuchet ms + verdana

WCAG AAA
57/100
Readability
/30
8/30

13px · LH --

Hierarchy
/20
14/20

1.3x ratio · ✓ H1→H6

WCAG
/25
21/25

12.63:1 min contrast

Performance
/25
14/25

2 fonts

Heading Font

trebuchet ms

Sans17px

Body Font

verdana

Sans13px

Contrast Ratio

12.63:1

WCAG AAA (≥7:1)

Reading Comfort

~83 CPL

Wide lines
17px
h1
13px
h2
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Wide lines: ~83 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 12.6:1).

✅ 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.

Buy on MyFontsFlesch 36

Color Palette

6 unique colors
3.96:1 AA Large Light
#ffffff
Background· 88.8%
#887d81
Other· 2%
#f4f2de
Primary· 1.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

2 Resources

0
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

djvu.org

24 years old
Location detected: 🇨🇦 Canadavia ip
Register.com - Network Solutions, LLCen

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Last analyzed: 15 May 2026 at 23:17

Historical Analysis & Change Tracking