Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

liveatc.net

Listen to Live ATC (Air Traffic Control) Communications | LiveATC.net

Page Load Speed

959 ms in total

First Response

60 ms

Resources Loaded

819 ms

Page Rendered

80 ms

liveatc.net screenshot

About Website

Visit liveatc.net now to see the best up-to-date LiveATC content for United States and also check out these interesting facts you probably never knew about liveatc.net

LiveATC.Net provides live air traffic control (ATC) broadcasts from air traffic control towers and radar facilities around the world

Visit liveatc.net

Key Findings

We analyzed Liveatc.net page load time and found that the first response time was 60 ms and then it took 899 ms 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

liveatc.net performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

81/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value6,760 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value16.5 s

5/100

10%

Network Requests Diagram

liveatc.net

60 ms

liveatc.net

74 ms

www.liveatc.net

105 ms

js

81 ms

google_service.js

44 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 26% of them (5 requests) were addressed to the original Liveatc.net, 37% (7 requests) were made to Img.liveatc.net and 21% (4 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (399 ms) relates to the external source Pagead2.googlesyndication.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 51.0 kB (12%)

Content Size

412.3 kB

After Optimization

361.2 kB

In fact, the total size of Liveatc.net main page is 412.3 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. 20% of websites need less resources to load. Javascripts take 341.8 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 16.7 kB

  • Original 22.0 kB
  • After minification 19.1 kB
  • After compression 5.3 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. This page needs HTML code to be minified as it can gain 2.9 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 16.7 kB or 76% of the original size.

Image Optimization

-62%

Potential reduce by 21.9 kB

  • Original 35.3 kB
  • After minification 13.4 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. Obviously, LiveATC needs image optimization as it can save up to 21.9 kB or 62% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 1.3 kB

  • Original 341.8 kB
  • After minification 341.1 kB
  • After compression 340.6 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

-85%

Potential reduce by 11.2 kB

  • Original 13.1 kB
  • After minification 9.9 kB
  • After compression 1.9 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. Liveatc.net needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (44%)

Requests Now

16

After Optimization

9

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LiveATC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

liveatc.net accessibility score

68

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

liveatc.net 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

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

liveatc.net SEO score

69

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Liveatc.net 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 Liveatc.net main page’s claimed encoding is iso-8859-1. 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

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