dunkels.com

https://dunkels.com· First analyzed 31 May 2026· Updated 31 May 2026

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dunkels.com

Mobile

Sponsored

Hosting Provider

Loopia AB

IP Address

109.235.174.3

Site Location

🇸🇪 Swedenvia ip

Server Location

🇸🇪 Stockholm, Sweden

ASN

AS41528

Organization

Loopia AB

Server

OpenResty

Nameservers

ns2.loopiagroup.com.ns1.loopiagroup.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

763 ms10%

Speed Index

992 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

14.6 MB

25 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

JAMstack

⚡ SSG

Frontend

Framework

Jekyllv4.4.1

Styling

Tailwind CSS

Infrastructure

Hosting

Loopia AB

Technology Stack

8 Technologies Detected

CSS Frameworks

Analytics

Libraries

Icon Libraries

Fonts

Web Servers

SEO Analysis

C60/100

Meta Tags8/15

Content3/12

Headings5/8

Technical16/21

E-E-A-T2/7

Images5/7

Links5/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

dunkels.comdunkels.com

Adam Dunkels homepage | Adam Dunkels

The homepage of Adam Dunkels.

Title Length36 chars

Recommended: 50-60 chars (~225px / 580px)

Description Length29 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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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.

Sponsored

AI & LLM Readiness

D42/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

5/25

Citation

9/25

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

nav

Text ratio:1%

Words:855

Token eff.:Optimal

Depth:1/5

Structured Data

1 JSON-LD

Organization×1.1WebSite

Citation Readiness

Opening Summary

Descriptive Headings

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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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.

77/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

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.

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.

44/100

1.51 g

CO₂e / view

14.6 MB

Page Weight

Cleaner Than

New Visitor

1.72 g

Returning (cached)

862 mg

Annual (10K/mo)

181.1 kg

Emission Segments

Data Center

74 mg

Network

444 mg

Device

992 mg

Resource Breakdown

JavaScript

22.3 KB

Images

14.2 MB

CSS

264.5 KB

Fonts

1.9 KB

HTML

83.2 KB

Green Hosting Verified

Websupport

GWF Verified

5 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

73d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

15.05.2026

Valid Until

13.08.2026

Subject Alternative Names (2)

*.dunkels.comdunkels.com

SHA-256 Fingerprint

70:40:DA:F9:94:C8:08:AE:F6:49:FD:F0:C4:BB:D9:0A:39:6D:F3:51...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

content-encoding

⚡ Brotli(br)

content-type

text/html

date

Sun, 31 May 2026 13:48:24 GMT

etag

W/"48-6007b055042f1"

last-modified

Fri, 14 Jul 2023 23:43:50 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.dunkels.com

Domain Information

dunkels.com

Domain Age

26y 11m

Created

02.07.1999

Expires

02.07.2027

Last Updated

29.05.2026

Registrar

Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

61/100

Mobile Friendly3 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, shrink-to-fit=no

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Georgia + Segoe UI

WCAG AA

83/100

Readability

/30

27/30

17px · LH 1.60

Hierarchy

/20

13/20

2.4x ratio

WCAG

/25

22/25

4.69:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Georgia

Serif41px

Body Font

Segoe UI

Sans17px

Contrast Ratio

4.69:1

WCAG AA (≥4.5:1)

Reading Comfort

~39 CPL

Narrow lines

41px

26px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.7:1).

❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

GGoogle Fonts Buy on MyFontsFlesch 62

Color Palette

8 unique colors

19.8:1 AAA Light

#ffffff

Background· 78.49999999999999%

#0a0a0a

Text· 9.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)code.jquery.com(1)googletagmanager.com(1)cdnjs.cloudflare.com(1)stackpath.bootstrapcdn.com(1)

Website Identity

Adam Dunkels

The homepage of Adam Dunkels.

dunkels.com/adam/

26 years old

Location detected: 🇸🇪 Swedenvia ip

Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USAen

Sponsored

Last analyzed: 31 May 2026 at 13:48

Historical Analysis & Change Tracking