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riscosopen.org

https://riscosopen.org· First analyzed 14 May 2026· Updated 14 May 2026
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riscosopen.org
Desktop screenshot of riscosopen.org
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Mobile

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Hosting Provider

Arachsys Internet Services Ltd

IP Address

91.203.57.12

Site Location

🇬🇧 United Kingdomvia ip

Server Location

🇬🇧 Kidderminster, United Kingdom

ASN

AS44934

Organization

Arachsys Internet Services Ltd

Server

Nginx

Nameservers

rool.c.ns.arachsys.net.rool.b.ns.arachsys.net.rool.a.ns.arachsys.net.rool.d.ns.arachsys.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
497 ms10%
Speed Index
646 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
150 KB
13 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Arachsys Internet Services Ltd

Technology Stack

2 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Web Servers

1
Nginx

SEO Analysis

D53/100
16
9
1
Meta Tags4/15
Content10/12
Headings5/8
Technical12/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
R
riscosopen.orgriscosopen.org

RISC OS Open: Welcome

No description available for this page.

Title Length21 chars

Recommended: 50-60 chars (~134px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

10 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

59 rules

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F22/100
Bot Access
3/25
Machine Read.
10/25
Schema Data
0/25
Citation
9/25

AI Bot Access

0/14 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:19%
Words:401
Token eff.:Optimal
Sections/1K:24.9
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary52w
Descriptive Headingsavg 2.6w
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

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.
B
71/100
9
Passed
3
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
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.
50/100
A+
19 mg
CO₂e / view
149.5 KB
Page Weight
95%
Cleaner Than
New Visitor
21 mg
vs
Returning (cached)
11 mg
Annual (10K/mo)
2.2 kg
Emission Segments
Data Center
4 mg
Network
4 mg
Device
10 mg
Resource Breakdown
JavaScript
9.0 KB
Images
11.2 KB
CSS
117.0 KB
HTML
12.4 KB
Green Hosting Not Verified
Arachsys Internet Services Ltd
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

61%Fair
Interactive

HTTPS

No WAF

86d

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

11.05.2026

Valid Until

09.08.2026

Subject Alternative Names (2)

riscosopen.orgwww.riscosopen.org

SHA-256 Fingerprint

C3:3E:23:50:31:D9:FC:37:84:D5:A3:88:B5:89:F9:1C:89:64:3F:A3...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(private, no-cache=true)
connection
keep-alive
content-length
12424
content-type
text/html; charset=utf-8
date
Thu, 14 May 2026 18:15:59 GMT
etag
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

riscosopen.org

Domain Information

riscosopen.org

Domain Age
19y 11m

Created

06.06.2006

Expires

06.06.2026

Last Updated

21.07.2025

Registrar

Mesh Digital Limited

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
56/100
Mobile Friendly
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

homerton

WCAG Partial
67/100
Readability
/30
22/30

16px · LH --

Hierarchy
/20
15/20

2x ratio

WCAG
/25
16/25

1.31:1 min contrast

Performance
/25
14/25

1 font

Heading Font

homerton

Sans32px

Body Font

homerton

Sans16px

Contrast Ratio

1.31:1

1 issue

Reading Comfort

~38 CPL

Narrow lines
32px
h1
20px
h3
16px
p

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

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.3:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

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

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 55

Color Palette

11 unique colors
3.09:1 AA Large Light
#ffffff
Background· 60.1%
#8f9399
Other· 2.6%
#1f3d63
Primary· 4.8%
#4c78a2
Secondary· 4.8%
#40527e
Secondary· 4.1%
#c8eab8
Accent· 3.7%
#b0c3b4
Secondary· 3.6%

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

1
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

local(1)

Website Identity

riscosopen.org

19 years old
Location detected: 🇬🇧 United Kingdomvia ip
Mesh Digital Limiteden

Sponsored

Last analyzed: 14 May 2026 at 18:16

Historical Analysis & Change Tracking