randomnerdtutorials.com

https://randomnerdtutorials.com· First analyzed 28 Apr 2026· Updated 28 Apr 2026

Export

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.9.234

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

bella.ns.cloudflare.com.zeus.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.0 s10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

9.6 MB

237 requests

Image Optimization

Lazy LoadResponsiveJetpack Photon (WordPress)

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.8.5

cms

GeneratePressv3.6.0

by Tom Usborne

View Theme

Technology Stack

15 Technologies Detected

Plugins

Elementor

Gp Premium Flying Press

Libraries

Analytics

UI Components

Other

CSS Frameworks

Icon Libraries

Advertising

CDN

SEO Analysis

B72/100

Meta Tags7/15

Content10/12

Headings3/8

Technical24/25

E-E-A-T2/7

Images4/7

Links2/5

URL5/5

Social5/5

Freshness4/4

Mobile3/4

Indexability3/3

randomnerdtutorials.comrandomnerdtutorials.com

Random Nerd Tutorials | Learn ESP32, ESP8266, Arduino, and Raspberr...

Random Nerd Tutorials helps makers, hobbyists and engineers build electronics projects. We make projects with: ESP32, ESP8266, Arduino, Raspberry Pi, Home Au...

Title truncated. Description truncated.

Title Length71 chars

Recommended: 50-60 chars (~425px / 580px)

Description Length266 chars

Recommended: 120-160 chars

Issues (2)

• Title is too long (71 chars, ~425px). Will be truncated in search results.
• Missing H1 tag — every page should have exactly one H1

10 issues found

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Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

17/100

Poor

5 12

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

Sponsored

AI & LLM Readiness

D55/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

6/25

Citation

16/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:2%

Words:595

Token eff.:Optimal

Sections/1K:26.9

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbList

Citation Readiness

Opening Summary26w

Descriptive Headingsavg 7.1w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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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.

80/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

15/15

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...

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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.

28/100

993 mg

CO₂e / view

9.6 MB

Page Weight

Cleaner Than

New Visitor

1.13 g

Returning (cached)

567 mg

Annual (10K/mo)

119.1 kg

Emission Segments

Data Center

49 mg

Network

292 mg

Device

652 mg

Resource Breakdown

JavaScript

404.1 KB

Images

6.6 MB

CSS

2.5 MB

Fonts

1.5 KB

HTML

25.0 KB

Other

24.5 KB

Green Hosting Verified

Cloudflare

GWF Verified

8 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

26%Critical

Interactive

HTTPS

WAF

41d

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

10.03.2026

Valid Until

09.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

randomnerdtutorials.com*.randomnerdtutorials.com

SHA-256 Fingerprint

31:9C:A3:7A:14:0B:AA:DB:21:F2:C0:5F:07:1F:4C:76:BA:08:64:A5...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cdn-cache-control

max-age=2592000

cf-cache-status

DYNAMIC

cf-ray

9f34449d1f2bebed-SJC

content-encoding

zstd

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

route2.mx.cloudflare.net

route3.mx.cloudflare.net

route1.mx.cloudflare.net

Domain Information

randomnerdtutorials.com

Domain Age

13y 1m

Created

16.03.2013

Expires

16.03.2027

Last Updated

25.09.2024

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

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.

81/100

Mobile Friendly7 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...

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Typography & Readability

Helvetica

WCAG Partial

69/100

Readability

/30

25/30

18px · LH 1.50

Hierarchy

/20

7/20

WCAG

/25

17/25

1:1 min contrast

Performance

/25

20/25

1 font · 3 req

Heading Font

Helvetica

Sans

Body Font

Helvetica

Sans18px

Contrast Ratio

1:1

22 issues

Reading Comfort

~33 CPL

Narrow lines

36px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

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

⚠️ Partial contrast: 22 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.

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

Buy on MyFonts

Color Palette

10 unique colors

19.72:1 AAA Light

#ffffff

Background· 36.5%

#0a0b0a

Text· 4.5%

#262b2e

Secondary· 17.2%

#304565

Primary· 7.5%

#053906

Accent· 5.7%

#6d7b88

Secondary· 5%

#dee4e9

Secondary· 3.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

scripts.mediavine.com(3)randomnerdtutorials.com(3)(3)cdnjs.cloudflare.com(3)googletagmanager.com(2)

Website Identity

Random Nerd Tutorials

Organization

Learn ESP8266, ESP32, Arduino, and Raspberry Pi

randomnerdtutorials.com/

13 years old

Location detected: 🇨🇦 Canadavia ip

GoDaddy.com, LLCen-US

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Last analyzed: 28 Apr 2026 at 07:14

Historical Analysis & Change Tracking