Tools & Wizards About Us
antenna-theory.com screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

antenna-theory.com

The Antenna Theory Website

Page Load Speed

1.2 sec in total

First Response

138 ms

Resources Loaded

829 ms

Page Rendered

217 ms

antenna-theory.com screenshot

About Website

Visit antenna-theory.com now to see the best up-to-date Antenna Theory content for Belgium and also check out these interesting facts you probably never knew about antenna-theory.com

An intuitive tutorial of antennas and antenna theory. This website is designed to present a comprehensive overview of antennas, from design, to measurement and theory. Unnecessarily complicated math i...

Visit antenna-theory.com

Key Findings

We analyzed Antenna-theory.com page load time and found that the first response time was 138 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

antenna-theory.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value2,860 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.472

18/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

antenna-theory.com

138 ms

plusone.js

109 ms

show_ads.js

8 ms

jquery.min.js

31 ms

ads.js

4 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 20% of them (7 requests) were addressed to the original Antenna-theory.com, 14% (5 requests) were made to Pagead2.googlesyndication.com and 14% (5 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (260 ms) relates to the external source Googleads.g.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 31.3 kB (15%)

Content Size

215.4 kB

After Optimization

184.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Antenna-theory.com main page is 215.4 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. 55% of websites need less resources to load. Images take 139.5 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 19.9 kB

  • Original 27.2 kB
  • After minification 24.4 kB
  • After compression 7.2 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 19.9 kB or 73% of the original size.

Image Optimization

-1%

Potential reduce by 1.7 kB

  • Original 139.5 kB
  • After minification 137.8 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. Antenna Theory images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 9.7 kB

  • Original 48.7 kB
  • After minification 48.6 kB
  • After compression 39.0 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 9.7 kB or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (53%)

Requests Now

32

After Optimization

15

  • AJAX
  • Images
  • JavaScript

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Antenna Theory. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

antenna-theory.com

antenna-theory.com

138 ms

plusone.js

plusone.js

109 ms

show_ads.js

show_ads.js

8 ms

jquery.min.js

jquery.min.js

31 ms

ads.js

ads.js

4 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

71 ms

ga.js

ga.js

71 ms

all.js

all.js

135 ms

ca-pub-3425748327214278.js

ca-pub-3425748327214278.js

128 ms

zrt_lookup.html

zrt_lookup.html

125 ms

show_ads_impl.js

show_ads_impl.js

89 ms

antenna.gif

antenna.gif

48 ms

macminiantenna.gif

macminiantenna.gif

69 ms

antennatheory.jpg

antennatheory.jpg

73 ms

antennas.jpg

antennas.jpg

75 ms

Antenna_Test_Ad_158x507_Pixels.jpg

Antenna_Test_Ad_158x507_Pixels.jpg

72 ms

__utm.gif

__utm.gif

54 ms

__utm.gif

__utm.gif

38 ms

ads

ads

207 ms

osd.js

osd.js

21 ms

ads

ads

260 ms

121 ms

ads

ads

251 ms

xd_arbiter.php

xd_arbiter.php

67 ms

xd_arbiter.php

xd_arbiter.php

127 ms

m_js_controller.js

m_js_controller.js

22 ms

abg.js

abg.js

39 ms

favicon

favicon

108 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

94 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

58 ms

s

s

48 ms

x_button_blue2.png

x_button_blue2.png

39 ms

favicon

favicon

128 ms

favicon

favicon

147 ms

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

14 ms

Accessibility Review

antenna-theory.com accessibility score

71

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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.

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

<frame> or <iframe> elements do not have a title

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

Best Practices

antenna-theory.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

antenna-theory.com SEO score

73

Search Engine Optimization Advices

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 Antenna-theory.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 Antenna-theory.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

antenna-theory.com

Open Graph description is not detected on the main page of Antenna Theory. 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: