Tools & Wizards About Us
radarbox.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

radarbox.com

AirNav RadarBox - Global Flight Tracking Intelligence | Live Flight Tracker and Airport Status

Page Load Speed

1.4 sec in total

First Response

408 ms

Resources Loaded

890 ms

Page Rendered

83 ms

radarbox.com screenshot

About Website

Visit radarbox.com now to see the best up-to-date Radar Box content for Japan and also check out these interesting facts you probably never knew about radarbox.com

Real-time flight tracking with one of the best and most accurate ADS-B coverage worldwide. Check airport arrivals and departures status and aircraft history.

Visit radarbox.com

Key Findings

We analyzed Radarbox.com page load time and found that the first response time was 408 ms and then it took 973 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

radarbox.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value23.2 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value3,430 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value22.2 s

1/100

10%

Network Requests Diagram

www.radarbox.com

408 ms

js

103 ms

gtm.js

197 ms

font-1.css

36 ms

rb24-94376cf4.css

30 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 32% of them (8 requests) were addressed to the original Radarbox.com, 16% (4 requests) were made to Connect.facebook.net and 8% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (408 ms) belongs to the original domain Radarbox.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 221.9 kB (47%)

Content Size

470.5 kB

After Optimization

248.6 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Radarbox.com main page is 470.5 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. 65% of websites need less resources to load. HTML takes 332.2 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 221.7 kB

  • Original 332.2 kB
  • After minification 328.0 kB
  • After compression 110.5 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 221.7 kB or 67% of the original size.

JavaScript Optimization

-0%

Potential reduce by 78 B

  • Original 86.1 kB
  • After minification 86.1 kB
  • After compression 86.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 76 B

  • Original 52.2 kB
  • After minification 52.2 kB
  • After compression 52.2 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. Radarbox.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (55%)

Requests Now

22

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Radar Box. 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

www.radarbox.com

www.radarbox.com

408 ms

js

js

103 ms

gtm.js

gtm.js

197 ms

font-1.css

font-1.css

36 ms

rb24-94376cf4.css

rb24-94376cf4.css

30 ms

adsbygoogle.js

adsbygoogle.js

124 ms

client

client

88 ms

fbevents.js

fbevents.js

15 ms

25877804.js

25877804.js

139 ms

sdk.js

sdk.js

49 ms

ol-7-5-2.js

ol-7-5-2.js

53 ms

main-960e1159.js

main-960e1159.js

49 ms

2097065220569140

2097065220569140

165 ms

zrt_lookup_nohtml.html

zrt_lookup_nohtml.html

239 ms

sonda.svg

sonda.svg

259 ms

symbols-v2.svg

symbols-v2.svg

164 ms

analytics.js

analytics.js

252 ms

icon_fullscreen.svg

icon_fullscreen.svg

159 ms

airnav_radarbox_logo.svg

airnav_radarbox_logo.svg

251 ms

sdk.js

sdk.js

158 ms

seCwX7KgYLBfcgC7z3GAv5mBULPwrlfQoL0a6qxM6hajweC8z3UgUO9xkSCwb7HQtuUB6EhYyGGwummJ6qtxoOBmX7SwULAA==

seCwX7KgYLBfcgC7z3GAv5mBULPwrlfQoL0a6qxM6hajweC8z3UgUO9xkSCwb7HQtuUB6EhYyGGwummJ6qtxoOBmX7SwULAA==

32 ms

PTSans-Regular.otf

PTSans-Regular.otf

129 ms

2cfd19d3-c590-498b-a07f-eca655a1e7a3.js

2cfd19d3-c590-498b-a07f-eca655a1e7a3.js

124 ms

collect

collect

34 ms

collect

collect

18 ms

Accessibility Review

radarbox.com accessibility score

51

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

radarbox.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

radarbox.com SEO score

86

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UNICODE

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Radarbox.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 Radarbox.com main page’s claimed encoding is unicode. 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

radarbox.com

Open Graph data is detected on the main page of Radar Box. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: