Tools & Wizards About Us
electronics-tutorials.com screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

electronics-tutorials.com

electronics tutorials for newcomers learn basic electronics for free

Page Load Speed

21 sec in total

First Response

148 ms

Resources Loaded

20.5 sec

Page Rendered

378 ms

electronics-tutorials.com screenshot

About Website

Click here to check amazing Electronics Tutorials content for United States. Otherwise, check out these important facts you probably never knew about electronics-tutorials.com

Offering free comprehensive basic electronics tutorials in amplifiers, antennas, filters, oscillators, power supply, receivers, radio and electronics design.

Visit electronics-tutorials.com

Key Findings

We analyzed Electronics-tutorials.com page load time and found that the first response time was 148 ms and then it took 20.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

electronics-tutorials.com performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value870 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

electronics-tutorials.com

148 ms

electronics-tutorials.com

209 ms

gtm.js

63 ms

js

106 ms

index.js

190 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 70% of them (45 requests) were addressed to the original Electronics-tutorials.com, 8% (5 requests) were made to Googletagmanager.com and 5% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source Ir-na.amazon-adsystem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.0 kB (13%)

Content Size

393.2 kB

After Optimization

343.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Electronics-tutorials.com main page is 393.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 262.6 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 45.9 kB

  • Original 63.2 kB
  • After minification 62.2 kB
  • After compression 17.3 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 45.9 kB or 73% of the original size.

Image Optimization

-6%

Potential reduce by 3.9 kB

  • Original 65.7 kB
  • After minification 61.8 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 Tutorials images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 129 B

  • Original 262.6 kB
  • After minification 262.6 kB
  • After compression 262.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 36 B

  • Original 1.8 kB
  • After minification 1.8 kB
  • After compression 1.7 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-tutorials.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 27 (45%)

Requests Now

60

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Electronics Tutorials. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

electronics-tutorials.com

electronics-tutorials.com

148 ms

electronics-tutorials.com

electronics-tutorials.com

209 ms

gtm.js

gtm.js

63 ms

js

js

106 ms

index.js

index.js

190 ms

main.css

main.css

191 ms

element.js

element.js

51 ms

adsbygoogle.js

adsbygoogle.js

137 ms

js

js

55 ms

js

js

61 ms

analytics.js

analytics.js

32 ms

trustlogo.js

trustlogo.js

110 ms

print.css

print.css

213 ms

collect

collect

72 ms

ir

ir

19828 ms

logo2.jpg

logo2.jpg

139 ms

ArrowOrange.gif

ArrowOrange.gif

196 ms

curve_top_left.gif

curve_top_left.gif

238 ms

curve_top_right.gif

curve_top_right.gif

250 ms

curve_bottom_left.gif

curve_bottom_left.gif

251 ms

curve_bottom_right.gif

curve_bottom_right.gif

240 ms

NEW.jpg

NEW.jpg

277 ms

us-icon.gif

us-icon.gif

345 ms

ca-icon.gif

ca-icon.gif

362 ms

uk-icon.gif

uk-icon.gif

387 ms

de-icon.gif

de-icon.gif

373 ms

ja-icon.gif

ja-icon.gif

397 ms

transparent.gif

transparent.gif

404 ms

0872598799.jpg

0872598799.jpg

522 ms

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0070246300.jpg

546 ms

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0071459332.jpg

547 ms

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0750685182.jpg

544 ms

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548 ms

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1625950624.jpg

580 ms

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679 ms

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0486209733.jpg

693 ms

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600 ms

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1581600275.jpg

689 ms

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708 ms

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723 ms

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732 ms

0521370957.jpg

0521370957.jpg

735 ms

1581600224.jpg

1581600224.jpg

890 ms

0070344531.jpg

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833 ms

0071372261.jpg

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854 ms

0872594920.jpg

0872594920.jpg

861 ms

0375413065.jpg

0375413065.jpg

874 ms

sm-funny.gif

sm-funny.gif

888 ms

icp.jpg

icp.jpg

1003 ms

webmaster.jpg

webmaster.jpg

989 ms

seal_bg.gif

seal_bg.gif

118 ms

comodo_secure_seal_113x59_transp.png

comodo_secure_seal_113x59_transp.png

278 ms

warranty_level.gif

warranty_level.gif

127 ms

show_ads_impl.js

show_ads_impl.js

383 ms

cse.js

cse.js

62 ms

curve_side_top.gif

curve_side_top.gif

910 ms

collect

collect

24 ms

curve_left_side.gif

curve_left_side.gif

877 ms

js

js

51 ms

curve_right_side.gif

curve_right_side.gif

845 ms

curve_side_bottom.gif

curve_side_bottom.gif

806 ms

zrt_lookup.html

zrt_lookup.html

36 ms

ads

ads

403 ms

ads

ads

83 ms

Accessibility Review

electronics-tutorials.com accessibility score

80

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

electronics-tutorials.com best practices score

58

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

electronics-tutorials.com SEO score

81

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Electronics-tutorials.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-tutorials.com main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

electronics-tutorials.com

Open Graph description is not detected on the main page of Electronics Tutorials. 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: