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radio-electronics.com

https://radio-electronics.com· First analyzed 10 May 2026· Updated 10 May 2026
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radio-electronics.com
Desktop screenshot of radio-electronics.com
Mobile screenshot of radio-electronics.com
Mobile

Sponsored

Hosting Provider

On-Line Marketing & Sales Ltd

IP Address

185.215.37.86

Site Location

🇬🇧 Dorking, United Kingdomvia schema_nap

Server Location

🇬🇧 Redditch, United Kingdom

ASN

AS6908

Organization

On-Line Marketing & Sales Ltd

Server

Nginx

Nameservers

ns0.swiftinter.net.ns.radio-electronics.com.ns1.swiftinter.net.ns2.swiftinternet.co.uk.

Performance

100

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
On-Line Marketing & Sales Ltd

Technology Stack

13 Technologies Detected

Advertising

4
Google AdsGoogle AdSenseCriteoOutbrain

Icon Libraries

2
Font AwesomeMaterial Icons

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Payments

1
Square

Web Servers

1
Nginx

Languages

1
PHPv7.3.33

SEO Analysis

C62/100
15
12
0
Meta Tags10/15
Content10/12
Headings6/8
Technical15/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
R
radio-electronics.comradio-electronics.com

Electronics Notes: reference site for electronics, radio & wireless

Now incorporating the best of Radio-Electronics.com, Electronics Notes offers basic radio & electronics tutorials to learn electronics online as well as prac...

Description truncated.
Title Length67 chars

Recommended: 50-60 chars (~396px / 580px)

Description Length210 chars

Recommended: 120-160 chars

Issues (0)

    12 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    2,197 URLs

    robots.txt

    Local SEO

    Local Search Readiness

    18/100
    Poor
    5 14 1

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

    Sponsored

    AI & LLM Readiness

    F38/100
    Bot Access
    20/25
    Machine Read.
    4/25
    Schema Data
    1/25
    Citation
    13/25

    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:12%
    Words:10,119
    Token eff.:Excessive
    Sections/1K:1.3
    Depth:1/5

    Structured Data

    1 JSON-LD
    sameAs entity links

    Citation Readiness

    Opening Summary63w
    Descriptive Headingsavg 3.5w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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.
    C
    66/100
    10
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    10/20
    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
    10/15
    Verifies form fields have labels, error messages are clear, and inputs are properly associated.
    Color & Contrast
    14/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    31/100
    C
    159 mg
    CO₂e / view
    1.3 MB
    Page Weight
    70%
    Cleaner Than
    New Visitor
    182 mg
    vs
    Returning (cached)
    91 mg
    Annual (10K/mo)
    19.1 kg
    Emission Segments
    Data Center
    36 mg
    Network
    38 mg
    Device
    85 mg
    Resource Breakdown
    JavaScript
    829.9 KB
    Images
    282.9 KB
    CSS
    63.0 KB
    Fonts
    6.2 KB
    HTML
    13.1 KB
    Other
    89.9 KB
    Green Hosting Not Verified
    On-Line Marketing & Sales Ltd
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    0%Critical
    Critical / Transactional

    HTTPS

    No WAF

    33d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    15.03.2026

    Valid Until

    13.06.2026

    Subject Alternative Names (11)

    electronics-notes.comelectronics-radio.comelectronicsnotes.comelectronicsradio.comradio-electronics.comwebmail.electronics-notes.comwww.electronics-notes.comwww.electronics-radio.com+3 more

    SHA-256 Fingerprint

    C2:0D:54:3C:1A:82:9F:5C:FA:27:3F:2A:E0:EE:C6:D0:E0:82:67:EB...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    content-encoding
    📦 Gzip(gzip)
    content-length
    13077
    content-type
    text/html; charset=UTF-8
    date
    Sun, 10 May 2026 17:36:12 GMT
    server
    nginx
    vary
    Accept-Encoding,User-Agent
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    75

    SPF
    DKIM
    DMARC

    MX Records (1)

    mail.radio-electronics.com

    Domain Information

    radio-electronics.com

    Domain Age
    26y 2m

    Created

    26.02.2000

    Expires

    20.02.2029

    Last Updated

    13.08.2020

    Registrar

    Register.com - Network Solutions, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Quantcast Choice

    Cookie Consent Banner
    Quantcast Choice
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Quantcast Choice
    Privacy policy page linked
    Legitimate interest basis mentioned

    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
    63/100
    Mobile Friendly14 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, maximum-scale=1
    3 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Open Sans + Arial

    WCAG AA
    67/100
    Readability
    /30
    16/30

    14px · LH 1.60

    Hierarchy
    /20
    12/20

    1.29x ratio · ✓ H1→H6

    WCAG
    /25
    19/25

    6.94:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    Open Sans

    Sans18px

    Body Font

    Arial

    Sans14px

    Contrast Ratio

    6.94:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~35 CPL

    Narrow lines
    18px
    h1
    25px
    h2
    22px
    h3
    14px
    p
    Major Second
    Scale

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

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.9:1).

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

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    GGoogle FontsFlesch 34

    Color Palette

    7 unique colors
    5.74:1 AA Dark
    #666666
    Other· 43.80000000000001%
    #ffffff
    Background· 20.599999999999998%
    #141217
    Primary· 10.2%
    #6a7481
    Secondary· 1.6%

    Business & Marketing Stack

    3 Tools Detected

    Enterprise

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    Social Media

    1
    Twitter/X WidgetsFree

    Social widgets and sharing tools

    3

    Categories

    3

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Ad Networks

    Google AdSenseGoogle Ad ManagerMedia.netAmazon Publisher ServicesSovrnPubMaticOpenXIndex Exchange

    Sponsored

    Scripts & Styles

    16 Resources

    14
    Scripts
    2
    Styles
    12
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(4)pagead2.googlesyndication.com(3)securepubads.g.doubleclick.net(2)fundingchoicesmessages.google.com(2)google-analytics.com(1)

    Website Identity

    Electronics Notes

    Electronics Notes

    EducationalOrganization

    Electronics Notes provides resources, information and tutorials for the electronics, radio and communications industries

    www.electronics-notes.com
    26 years old

    Dorking

    Dorking

    United Kingdom

    Location detected: 🇬🇧 United Kingdom, Dorkingvia schema_nap
    Register.com - Network Solutions, LLCen-GB

    Sponsored

    Last analyzed: 10 May 2026 at 17:36

    Historical Analysis & Change Tracking