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kryogenix.org

https://kryogenix.org· First analyzed 02 May 2026· Updated 02 May 2026
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kryogenix.org
Desktop screenshot of kryogenix.org
Mobile screenshot of kryogenix.org
Mobile

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Hosting Provider

IP Address

46.235.227.111

Site Location

🇬🇧 United Kingdomvia phone

Server Location

🇬🇧 Cambridge, United Kingdom

ASN

AS44684

Server

Apache

Nameservers

ns2.mythic-beasts.com.ns1.mythic-beasts.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
386 ms10%
Speed Index
502 ms10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
420 KB
32 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Mythic Beasts Address

Technology Stack

4 Technologies Detected

Frameworks

1

Web Servers

1

SEO Analysis

D57/100
16
7
1
Meta Tags8/15
Content10/12
Headings8/8
Technical13/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
K
kryogenix.orgkryogenix.org

Kryogenix Consulting

Stuart Langridge of Kryogenix Consulting, for consultancy and custom development on the web and devices

Title Length20 chars

Recommended: 50-60 chars (~117px / 580px)

Description Length103 chars

Recommended: 120-160 chars

Issues (1)

  • Most images missing alt text (24/24) — critical for accessibility and SEO

Crawlability

Sitemap
robots.txt

16 rules

Allows all crawlers

Local SEO

Local Search Readiness

15/100
Poor
5 10 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

D41/100
Bot Access
17/25
Machine Read.
14/25
Schema Data
0/25
Citation
10/25

AI Bot Access

10/14 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
code blocksnav
Text ratio:20%
Words:552
Token eff.:Optimal
Sections/1K:1.8
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary72w
Descriptive Headingsavg 5w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (7)
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
75/100
10
Passed
2
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
16/20
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
0/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • Accessibility recommendation preview...

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.
68/100
A
43 mg
CO₂e / view
420.4 KB
Page Weight
90%
Cleaner Than
New Visitor
49 mg
vs
Returning (cached)
24 mg
Annual (10K/mo)
5.1 kg
Emission Segments
Data Center
2 mg
Network
13 mg
Device
28 mg
Resource Breakdown
Images
84.5 KB
CSS
328.3 KB
Fonts
2.5 KB
HTML
5.1 KB
Green Hosting Verified
Mythic Beasts Ltd
GWF Verified
2 recommendations
  • Carbon footprint recommendation preview...
B

Security Score

73%Good
Static / Informational

HTTPS

No WAF

64d

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/1.1

Valid From

07.04.2026

Valid Until

06.07.2026

Subject Alternative Names (1)

www.kryogenix.org

SHA-256 Fingerprint

F1:DC:6D:88:9C:B0:94:00:F6:CD:2A:D5:6B:36:CD:47:8D:A0:92:F5...

Recommendations

Security recommendation preview

HTTP Headers

Developer Console

accept-ranges
bytes
connection
keep-alive, Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
4901
content-type
text/html
date
Sat, 02 May 2026 20:53:34 GMT
Good Warning Issue

Email Infrastructure

Fastmail

Score

45

SPF
DKIM
DMARC

MX Records (2)

in1-smtp.messagingengine.com
in2-smtp.messagingengine.com

Domain Information

kryogenix.org

Domain Age
25y 11m

Created

05.06.2000

Expires

05.06.2026

Last Updated

21.05.2025

Registrar

Tucows Domains Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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
58/100
Mobile Friendly2 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
1 recommendation
  • Mobile compatibility recommendation preview...

Typography & Readability

Roboto Condensed + Roboto

WCAG Partial
66/100
Readability
/30
16/30

44px · LH 1.10

Hierarchy
/20
14/20

1.82x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
20/25

2 fonts · 1 req

Heading Font

Roboto Condensed

Sans80px

Body Font

Roboto

Sans44px

Contrast Ratio

1:1

12 issues

Reading Comfort

Dual Sans-Serif

left aligned
80px
h1
24px
h2
44px
p

✅ Excellent readability: 44px body text is ideal for all devices.

⚠️ Tight line spacing (1.10). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.0:1).

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

✅ Lean font stack: 2 font families keeps load times fast.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle FontsFlesch 59

Color Palette

4 unique colors
12.73:1 AAA Dark
#000000
Background· 82.2%
#c8cac7
Other· 6.3%
#5f443c
Primary· 5.9%
#171110
Secondary· 5.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1

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

1
Scripts
1
Styles
1
Async
0
Defer

Top Script Sources

ssl.google-analytics.com(1)

Website Identity

kryogenix.org

Location detected: 🇬🇧 United Kingdomvia phone
Tucows Domains Inc.📧 Fastmailen-gb

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Last analyzed: 02 May 2026 at 20:53

Historical Analysis & Change Tracking