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josefsson.org

https://josefsson.org· First analyzed 24 May 2026· Updated 24 May 2026
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josefsson.org
Desktop screenshot of josefsson.org
Mobile screenshot of josefsson.org
Mobile

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Hosting Provider

General Private

IP Address

158.174.10.102

Site Location

🇸🇪 Swedenvia ip

Server Location

🇸🇪 Stockholm, Sweden

ASN

AS8473

Organization

General Private

Server

Apache

Nameservers

yxa-vi.extundo.com.kil.sjd.se.gaffel.josefsson.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
406 ms10%
Speed Index
528 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
67 KB
15 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
General Private

Technology Stack

1 Technologies Detected

Web Servers

1
Apachev2.4.67

SEO Analysis

D51/100
13
10
1
Meta Tags8/15
Content7/12
Headings8/8
Technical7/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
J
josefsson.orgjosefsson.org

About Simon Josefsson Datakonsult (SJD)

Simon Josefsson Datakonsult AB

Title Length39 chars

Recommended: 50-60 chars (~240px / 580px)

Description Length30 chars

Recommended: 120-160 chars

Issues (1)

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

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

2 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

F30/100
Bot Access
20/25
Machine Read.
5/25
Schema Data
0/25
Citation
5/25

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:18%
Words:188
Token eff.:Too Short
Sections/1K:16

Structured Data

No Schema

Citation Readiness

Opening Summary45w
Descriptive Headingsavg 1.7w
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...
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.
B
71/100
9
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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.
2 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.
60/100
A+
8 mg
CO₂e / view
67.0 KB
Page Weight
95%
Cleaner Than
New Visitor
10 mg
vs
Returning (cached)
5 mg
Annual (10K/mo)
996 g
Emission Segments
Data Center
2 mg
Network
2 mg
Device
4 mg
Resource Breakdown
Images
62.1 KB
CSS
2.5 KB
HTML
2.4 KB
Green Hosting Not Verified
General Private
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A+

Security Score

98%Excellent
Static / Informational

HTTPS

No WAF

82d

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

Valid From

16.05.2026

Valid Until

14.08.2026

Subject Alternative Names (2)

josefsson.orgwww.josefsson.org

SHA-256 Fingerprint

47:D9:FE:02:4E:F6:2D:20:3A:5D:8D:0E:48:20:87:57:A3:4A:43:71...

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
content-encoding
📦 Gzip(gzip)
content-length
2109
content-security-policy
default-src 'none'; img-src 'self'; script-src 'self'; style...
content-type
text/html
date
Sun, 24 May 2026 11:56:20 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

kniv.josefsson.org
uggla.sjd.se

Domain Information

josefsson.org

Domain Age
26y 5m

Created

22.12.1999

Expires

22.12.2026

Last Updated

05.02.2026

Registrar

Key-Systems GmbH

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.
F
34/100
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.
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Times New Roman

WCAG Partial
72/100
Readability
/30
22/30

16px · LH --

Hierarchy
/20
19/20

2x ratio · ✓ H1→H6

WCAG
/25
17/25

3.74:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Times New Roman

Sans32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

3.74:1

12 issues

Reading Comfort

Sans Headlines + Serif Body

left aligned
32px
h1
24px
h2
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 3.7:1).

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

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 29

Color Palette

6 unique colors
Light
#ffffff
Background· 65.60000000000001%
#73a1c5
Primary· 15.399999999999999%
#cdd4da
Secondary· 3.1%
#9faebd
Secondary· 3%
#74899f
Secondary· 1.9%

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

3 Resources

0
Scripts
3
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

josefsson.org

26 years old
Location detected: 🇸🇪 Swedenvia ip
Key-Systems GmbH

Sponsored

Last analyzed: 24 May 2026 at 11:56

Historical Analysis & Change Tracking