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arduino.org

https://arduino.org· First analyzed 19 May 2026· Updated 19 May 2026
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arduino.org
Desktop screenshot of arduino.org
Mobile screenshot of arduino.org
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.129.206

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

julissa.ns.cloudflare.com.john.ns.cloudflare.com.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
917 KB
70 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Decoupled
Frontend
Framework
Next.js
API
Data Source
Headless CMS
DatoCMS
Infrastructure
Platform
AWS CloudFront
CDN
Cloudflare

Detected API Sources

https://arduino.cc/cdn-cgi/ima...https://arduino.cc/cdn-cgi/ima...

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Advertising

1
Google Ads

CDN

1
Cloudflare

SEO Analysis

D53/100
16
10
1
Meta Tags8/15
Content9/12
Headings3/8
Technical12/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social2/5
Freshness0/4
Mobile2/4
Indexability3/3
A
arduino.orgarduino.org

Arduino - Home

Open-source electronic prototyping platform enabling users to create interactive electronic objects.

Title Length14 chars

Recommended: 50-60 chars (~87px / 580px)

Description Length100 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

11 issues found

Upgrade to view details

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.

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AI & LLM Readiness

F37/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
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:746
Token eff.:Optimal
Sections/1K:5.4
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary283w
Descriptive Headingsavg 4.5w
Canonical URL
Open Graph0/3
Twitter Card3/3
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.
C
65/100
9
Passed
4
Critical
3
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
9/20
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
2/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
63/100
B
93 mg
CO₂e / view
917.3 KB
Page Weight
80%
Cleaner Than
New Visitor
106 mg
vs
Returning (cached)
53 mg
Annual (10K/mo)
11.1 kg
Emission Segments
Data Center
5 mg
Network
27 mg
Device
61 mg
Resource Breakdown
JavaScript
398.7 KB
Images
1.7 KB
CSS
423.8 KB
HTML
71.9 KB
Other
21.1 KB
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

41%Poor
Interactive

HTTPS

WAF

81d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

10.05.2026

Valid Until

08.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.arduino.cc

SHA-256 Fingerprint

D0:A5:25:85:62:BB:4F:64:AB:4C:58:A4:18:68:71:12:F1:AD:B6:79...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age
4383
alt-svc
h3=":443"; ma=86400
cf-cache-status
HIT
cf-ray
9fe5232949c6ccf8-SJC
content-encoding
📦 Gzip(gzip)
content-type
text/html
Good Warning Issue

Email Infrastructure

Google Workspace

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx2.googlemail.com
aspmx.l.google.com
alt2.aspmx.l.google.com
aspmx3.googlemail.com

+1 more

Domain Information

arduino.org

Domain Age
16y 4m

Created

17.01.2010

Expires

17.01.2028

Last Updated

14.12.2025

Registrar

MarkMonitor Inc.

DNSSEC
Not Enabled

Privacy & Compliance

iubenda

Cookie Consent Banner
iubenda
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: iubenda
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.
B
71/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Open Sans

WCAG Partial
58/100
Readability
/30
21/30

16px · LH 1.63

Hierarchy
/20
8/20
WCAG
/25
16/25

1:1 min contrast

Performance
/25
13/25

1 font · 6 req

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans16px

Contrast Ratio

1:1

28 issues

Reading Comfort

Single Font Family

left aligned
48px
h2
48px
h3
16px
p
Minor Second
Scale

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

❌ Very complex text: Flesch score 24/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 28 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ 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 24

Color Palette

10 unique colors
19.75:1 AAA Light
#ffffff
Background· 35.5%
#0c0a0a
Text· 11.4%
#00979d
Primary· 0%
#008082
Primary· 7.7%
#706b3c
Secondary· 7.7%
#564928
Secondary· 2.8%
#739999
Secondary· 2.1%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
IubendaSMB

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

28 Resources

20
Scripts
8
Styles
6
Async
13
Defer

Top Script Sources

local(13)googletagmanager.com(2)cdn.iubenda.com(1)gstatic.com(1)embeds.iubenda.com(1)

Website Identity

arduino.org

16 years old
Location detected: 🇨🇦 Canadavia ip
MarkMonitor Inc.📧 Google Workspaceen

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Last analyzed: 19 May 2026 at 18:24

Historical Analysis & Change Tracking