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riot-os.org

https://riot-os.org· First analyzed 12 May 2026· Updated 12 May 2026
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riot-os.org
Desktop screenshot of riot-os.org
Mobile screenshot of riot-os.org
Mobile

Sponsored

Hosting Provider

Hetzner
hetzner.com

IP Address

65.108.193.50

Site Location

🇫🇮 Finlandvia ip

Server Location

🇫🇮 Helsinki, Finland

ASN

AS24940

Organization

Hetzner Online GmbH

Server

Caddy

Nameservers

nsd4.schlundtech.de.nsb4.schlundtech.de.nsc4.schlundtech.de.nsa4.schlundtech.de.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
701 ms10%
Speed Index
911 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.6 MB
89 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
WordPress
Infrastructure
Hosting
Hetzner

Technology Stack

9 Technologies Detected

UI Components

2
SwiperLightbox

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

2
Animate.cssAOS

Other

1
AOS (Animate On Scroll)

Fonts

1
Google Fonts

Web Servers

1
Caddy

SEO Analysis

D59/100
16
7
2
Meta Tags9/15
Content12/12
Headings3/8
Technical11/21
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
R
riot-os.orgriot-os.org

RIOT - The friendly Operating System for the Internet of Things

No description available for this page.

Title Length63 chars

Recommended: 50-60 chars (~385px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

5/100
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

D41/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
8/25

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
code blocksnavheader/footer
Text ratio:26%
Words:3,238
Token eff.:Good
Sections/1K:6.5
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary34w
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 (9)
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
76/100
11
Passed
5
Critical
0
Warnings
Images & Alt Text
13/20
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
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
9/15
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.
36/100
D
268 mg
CO₂e / view
2.6 MB
Page Weight
30%
Cleaner Than
New Visitor
306 mg
vs
Returning (cached)
153 mg
Annual (10K/mo)
32.1 kg
Emission Segments
Data Center
13 mg
Network
79 mg
Device
176 mg
Resource Breakdown
JavaScript
434.9 KB
Images
1.2 MB
CSS
871.8 KB
Fonts
3.2 KB
HTML
77.9 KB
Other
3.5 KB
Green Hosting Verified
Hetzner Online GmbH
GWF Verified
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Static / Informational

HTTPS

No WAF

60d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

12.04.2026

Valid Until

11.07.2026

Subject Alternative Names (1)

www.riot-os.org

SHA-256 Fingerprint

BF:88:4A:17:B5:3C:DF:08:6E:D0:AA:28:1B:B5:45:0A:9D:07:4E:3C...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
alt-svc
h3=":443"; ma=2592000
content-length
79441
content-type
text/html; charset=utf-8
date
Tue, 12 May 2026 04:38:00 GMT
etag
"didw60vtgjz71pap"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

50

SPF
DKIM
DMARC

MX Records (1)

mail.riot-os.org

Domain Information

riot-os.org

Domain Age
13y 5m

Created

03.12.2012

Expires

03.12.2026

Last Updated

17.01.2026

Registrar

InterNetX GmbH

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.
C
65/100
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.
Viewport
width=device-width, initial-scale=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Raleway + Open Sans

WCAG Partial
66/100
Readability
/30
22/30

14px · LH 1.50

Hierarchy
/20
14/20

2.78x ratio

WCAG
/25
12/25

1:1 min contrast

Performance
/25
18/25

2 fonts · 5 req

Heading Font

Raleway

Sans40px

Body Font

Open Sans

Sans14px

Contrast Ratio

1:1

21 issues

Reading Comfort

~35 CPL

Narrow lines
40px
h1
48px
h2
26px
h3
24px
h4
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Partial contrast: 21 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

GGoogle FontsFlesch 51

Color Palette

5 unique colors
2.76:1 Fail Dark
#1d1c1c
Text· 41.5%
#64615c
Other· 4.9%
#452123
Primary· 3.1%

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

19 Resources

9
Scripts
10
Styles
0
Async
0
Defer

Top Script Sources

local(9)

Website Identity

riot-os.org

security@riot-os.org
13 years old
Location detected: 🇫🇮 Finlandvia ip
InterNetX GmbHen

Sponsored

Last analyzed: 12 May 2026 at 04:38

Historical Analysis & Change Tracking