ubuntuhandbook.org

https://ubuntuhandbook.org· First analyzed 02 May 2026· Updated 02 May 2026

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ubuntuhandbook.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

188.114.97.3

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

logan.ns.cloudflare.com.maria.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

511 ms10%

Speed Index

664 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

808 KB

70 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

14 Technologies Detected

Plugins

Arconix Shortcodes Cookie Notice Simple Lightbox Mailpoet

Libraries

CSS Frameworks

Advertising

Google Ads Google AdSense

Icon Libraries

Fonts

Analytics

CDN

SEO Analysis

D59/100

Meta Tags11/15

Content8/12

Headings6/8

Technical15/25

E-E-A-T0/7

Images4/7

Links2/5

URL5/5

Social0/5

Freshness2/4

Mobile3/4

Indexability3/3

ubuntuhandbook.orgubuntuhandbook.org

UbuntuHandbook | News, Tutorials, Howtos for Ubuntu Linux

Ubuntu Handbook -- News, Tutorials, Howtos for Ubuntu Linux

Title Length57 chars

Recommended: 50-60 chars (~345px / 580px)

Description Length59 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (30/40) — critical for accessibility and SEO

12 issues found

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Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

7 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

F37/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

7/25

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:1,065

Token eff.:Optimal

Sections/1K:3.8

Structured Data

No Schema

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 9.4w

Canonical URL

Open Graph0/3

Twitter Card0/3

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.

75/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

18/20

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

7/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

5/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•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.

55/100

82 mg

CO₂e / view

808.4 KB

Page Weight

80%

Cleaner Than

New Visitor

93 mg

Returning (cached)

47 mg

Annual (10K/mo)

9.8 kg

Emission Segments

Data Center

4 mg

Network

24 mg

Device

54 mg

Resource Breakdown

JavaScript

429.3 KB

Images

48.0 KB

CSS

77.3 KB

Fonts

4.2 KB

HTML

17.3 KB

Other

232.3 KB

Green Hosting Verified

Cloudflare

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

26%Critical

Interactive

HTTPS

WAF

71d

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

13.04.2026

Valid Until

12.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

ubuntuhandbook.org*.ubuntuhandbook.org

SHA-256 Fingerprint

57:58:48:F3:23:9C:0F:D6:13:44:35:84:4F:06:46:66:FD:CD:66:FA...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

9f5455096bbf1b37-MXP

content-encoding

zstd

content-type

text/html; charset=UTF-8

date

Sat, 02 May 2026 04:37:42 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

ubuntuhandbook.org

Domain Age

12y 10m

Created

30.06.2013

Expires

30.06.2026

Last Updated

01.07.2024

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

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.

70/100

Mobile Friendly4 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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG Partial

73/100

Readability

/30

21/30

15px · LH 1.50

Hierarchy

/20

16/20

2.4x ratio

WCAG

/25

17/25

1.36:1 min contrast

Performance

/25

19/25

System fonts

Heading Font

Helvetica Neue

Sans36px

Body Font

Helvetica Neue

Sans15px

Contrast Ratio

1.36:1

27 issues

Reading Comfort

~36 CPL

Narrow lines

36px

38px

24px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Partial contrast: 27 elements below WCAG AA threshold (min 1.4:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

GGoogle FontsFluid Type (rem)Flesch 51

Color Palette

5 unique colors

15.29:1 AAA Light

#ffffff

Background· 43.20000000000001%

#262525

Other· 8.7%

#d4d1c1

Primary· 8.5%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

ubuntuhandbook.org(7)pagead2.googlesyndication.com(4)ssl.google-analytics.com(1)

Website Identity

ubuntuhandbook.org

12 years old

Location detected: 🇨🇦 Canadavia ip

GoDaddy.com, LLCen-US

Social Profiles

X (Twitter)YouTube

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Last analyzed: 02 May 2026 at 04:38

Historical Analysis & Change Tracking