Tools & Wizards About Us
electronics-radio.com screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

electronics-radio.com

Electronics Notes: reference site for electronics, radio & wireless

Page Load Speed

2.8 sec in total

First Response

283 ms

Resources Loaded

2.1 sec

Page Rendered

337 ms

electronics-radio.com screenshot

About Website

Welcome to electronics-radio.com homepage info - get ready to check Electronics Radio best content for United States right away, or after learning these important things about electronics-radio.com

Now incorporating the best of Radio-Electronics.com, Electronics Notes offers basic radio & electronics tutorials to learn electronics online as well as practical construction techniques and technolog...

Visit electronics-radio.com

Key Findings

We analyzed Electronics-radio.com page load time and found that the first response time was 283 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

electronics-radio.com performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value1,640 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.0 s

6/100

10%

Network Requests Diagram

electronics-radio.com

283 ms

www.electronics-radio.com

602 ms

style.css

333 ms

font-awesome.min.css

268 ms

prettyPhoto.min.css

176 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 60% of them (44 requests) were addressed to the original Electronics-radio.com, 14% (10 requests) were made to Tpc.googlesyndication.com and 5% (4 requests) were made to Securepubads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (848 ms) belongs to the original domain Electronics-radio.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 904.2 kB (54%)

Content Size

1.7 MB

After Optimization

782.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Electronics-radio.com main page is 1.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Javascripts take 992.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 113.5 kB

  • Original 149.6 kB
  • After minification 142.3 kB
  • After compression 36.1 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 113.5 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 11.5 kB

  • Original 427.2 kB
  • After minification 415.7 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Electronics Radio images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 682.2 kB

  • Original 992.6 kB
  • After minification 992.4 kB
  • After compression 310.4 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 682.2 kB or 69% of the original size.

CSS Optimization

-83%

Potential reduce by 97.0 kB

  • Original 117.1 kB
  • After minification 99.9 kB
  • After compression 20.2 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Electronics-radio.com needs all CSS files to be minified and compressed as it can save up to 97.0 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (49%)

Requests Now

67

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Electronics Radio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

electronics-radio.com

electronics-radio.com

283 ms

www.electronics-radio.com

www.electronics-radio.com

602 ms

style.css

style.css

333 ms

font-awesome.min.css

font-awesome.min.css

268 ms

prettyPhoto.min.css

prettyPhoto.min.css

176 ms

default.min.css

default.min.css

182 ms

responsive.css

responsive.css

274 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

25 ms

brand

brand

42 ms

jquery.min.js

jquery.min.js

465 ms

jquery-ui.min.js

jquery-ui.min.js

695 ms

jquery.matchHeight.min.js

jquery.matchHeight.min.js

267 ms

hoverIntent.min.js

hoverIntent.min.js

368 ms

superfish.min.js

superfish.min.js

367 ms

jquery.jcarousel.min.js

jquery.jcarousel.min.js

450 ms

jquery.sidr.min.js

jquery.sidr.min.js

451 ms

retina.min.js

retina.min.js

451 ms

jquery.sticky.min.js

jquery.sticky.min.js

452 ms

jquery.prettyPhoto.min.js

jquery.prettyPhoto.min.js

545 ms

jquery.custom.min.js

jquery.custom.min.js

496 ms

MathJax.js

MathJax.js

32 ms

brand

brand

63 ms

gpt.js

gpt.js

15 ms

logo.png

logo.png

209 ms

home-multimeter.jpg

home-multimeter.jpg

493 ms

home-testing.jpg

home-testing.jpg

354 ms

home-colors.jpg

home-colors.jpg

352 ms

home-basic.png

home-basic.png

298 ms

home-circuits.png

home-circuits.png

310 ms

home-components.png

home-components.png

490 ms

home-radio.png

home-radio.png

492 ms

home-ham.jpg

home-ham.jpg

493 ms

home-techniques.png

home-techniques.png

538 ms

home-video.jpg

home-video.jpg

538 ms

home-ant.png

home-ant.png

550 ms

home-test.png

home-test.png

550 ms

morse-key.jpg

morse-key.jpg

568 ms

history-volta.jpg

history-volta.jpg

592 ms

history-ampere.jpg

history-ampere.jpg

593 ms

history-edison.jpg

history-edison.jpg

593 ms

history-faraday.jpg

history-faraday.jpg

698 ms

B00ZAJ8MGU.jpg

B00ZAJ8MGU.jpg

698 ms

amazon.com.gif

amazon.com.gif

698 ms

amazon.co.uk.gif

amazon.co.uk.gif

698 ms

OpenSans-Regular.woff

OpenSans-Regular.woff

756 ms

OpenSans-Light.woff

OpenSans-Light.woff

687 ms

OpenSans-Bold.woff

OpenSans-Bold.woff

845 ms

pubads_impl_81.js

pubads_impl_81.js

13 ms

seperator.png

seperator.png

754 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

848 ms

ads

ads

348 ms

container.html

container.html

28 ms

TeX-AMS-MML_HTMLorMML.js

TeX-AMS-MML_HTMLorMML.js

99 ms

analytics.js

analytics.js

99 ms

ads

ads

86 ms

container.html

container.html

77 ms

ads

ads

171 ms

ads

ads

148 ms

expansion_embed.js

expansion_embed.js

83 ms

osd.js

osd.js

76 ms

collect

collect

33 ms

m_js_controller.js

m_js_controller.js

62 ms

abg.js

abg.js

106 ms

imgad

imgad

70 ms

imgad

imgad

89 ms

collect

collect

135 ms

favicon

favicon

115 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

78 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

55 ms

17223431857421192959

17223431857421192959

76 ms

imgad

imgad

66 ms

s

s

59 ms

x_button_blue2.png

x_button_blue2.png

28 ms

Accessibility Review

electronics-radio.com accessibility score

87

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

electronics-radio.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

electronics-radio.com SEO score

99

Search Engine Optimization Advices

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Electronics-radio.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Electronics-radio.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

electronics-radio.com

Open Graph description is not detected on the main page of Electronics Radio. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: