Tools & Wizards About Us
aviation-safety.net screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 72

    SEO

    Google-friendlier than
    31% of websites

aviation-safety.net

Aviation Safety Network

Page Load Speed

27.3 sec in total

First Response

387 ms

Resources Loaded

16 sec

Page Rendered

10.9 sec

aviation-safety.net screenshot

About Website

Click here to check amazing Aviation Safety content for United States. Otherwise, check out these important facts you probably never knew about aviation-safety.net

Aviation Safety Network - The resource centre for aircraft accidents and civil aviation safety issues.

Visit aviation-safety.net

Key Findings

We analyzed Aviation-safety.net page load time and found that the first response time was 387 ms and then it took 27 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

aviation-safety.net performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

67/100

25%

SI (Speed Index)

Value3.4 s

90/100

10%

TBT (Total Blocking Time)

Value850 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.106

88/100

15%

TTI (Time to Interactive)

Value6.1 s

63/100

10%

Network Requests Diagram

aviation-safety.net

387 ms

aviation-safety.net

434 ms

totalY.min.css

1271 ms

platform.js

2240 ms

urchin.js

1217 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 7% of them (3 requests) were addressed to the original Aviation-safety.net, 53% (23 requests) were made to Cdn.aviation-safety.net and 9% (4 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (4.7 sec) relates to the external source Static.xx.fbcdn.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 196.7 kB (57%)

Content Size

345.2 kB

After Optimization

148.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Aviation-safety.net main page is 345.2 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. 45% of websites need less resources to load. CSS take 193.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 23.6 kB

  • Original 30.9 kB
  • After minification 29.6 kB
  • After compression 7.4 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 23.6 kB or 76% of the original size.

Image Optimization

-6%

Potential reduce by 6.6 kB

  • Original 112.9 kB
  • After minification 106.3 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. Aviation Safety images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 1.3 kB

  • Original 7.8 kB
  • After minification 7.6 kB
  • After compression 6.4 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 1.3 kB or 17% of the original size.

CSS Optimization

-85%

Potential reduce by 165.1 kB

  • Original 193.6 kB
  • After minification 159.4 kB
  • After compression 28.4 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. Aviation-safety.net needs all CSS files to be minified and compressed as it can save up to 165.1 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (56%)

Requests Now

41

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aviation Safety. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

aviation-safety.net

aviation-safety.net

387 ms

aviation-safety.net

aviation-safety.net

434 ms

totalY.min.css

totalY.min.css

1271 ms

platform.js

platform.js

2240 ms

urchin.js

urchin.js

1217 ms

jsapi

jsapi

2223 ms

asn.js

asn.js

1222 ms

bg.gif

bg.gif

856 ms

asn_header3.png

asn_header3.png

2689 ms

feed.png

feed.png

578 ms

103-8.png

103-8.png

2463 ms

VT.gif

VT.gif

2464 ms

YV.gif

YV.gif

2648 ms

RA.gif

RA.gif

2609 ms

TC.gif

TC.gif

2609 ms

JA.gif

JA.gif

2609 ms

XY.gif

XY.gif

2608 ms

XA.gif

XA.gif

2691 ms

N.gif

N.gif

2690 ms

donate.gif

donate.gif

2692 ms

187236_59acf23f5b8aefigure-3-no-annotations-150x100.jpg

187236_59acf23f5b8aefigure-3-no-annotations-150x100.jpg

2692 ms

tn19670905-0-O-1.jpg

tn19670905-0-O-1.jpg

2692 ms

tn20051024-2-C-1.jpg

tn20051024-2-C-1.jpg

2895 ms

tn20010607-0-G-1.jpg

tn20010607-0-G-1.jpg

2978 ms

socialbuttons.png

socialbuttons.png

2932 ms

IASS2017_ASN_165x165px.jpg

IASS2017_ASN_165x165px.jpg

2932 ms

332.png

332.png

2931 ms

__utm.gif

__utm.gif

3471 ms

like.php

like.php

3045 ms

1102 ms

ui+en.css

ui+en.css

369 ms

format+en,default+en,ui+en,corechart+en.I.js

format+en,default+en,ui+en,corechart+en.I.js

1245 ms

totalprint.css

totalprint.css

3880 ms

0zf7krTbbuX.js

0zf7krTbbuX.js

4708 ms

lH1ibRl5GKq.png

lH1ibRl5GKq.png

4491 ms

q

q

1082 ms

sendcorrection2.php

sendcorrection2.php

536 ms

a-logo-amazon.png

a-logo-amazon.png

791 ms

51zRkLoph9L._AC_AC_SR98,95_.jpg

51zRkLoph9L._AC_AC_SR98,95_.jpg

740 ms

ir

ir

661 ms

json

json

656 ms

cart.gif

cart.gif

655 ms

tooltip.css

tooltip.css

4082 ms

Accessibility Review

aviation-safety.net 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

aviation-safety.net best practices score

75

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

SEO Factors

aviation-safety.net SEO score

72

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aviation-safety.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 Aviation-safety.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

aviation-safety.net

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