Tools & Wizards About Us
dviaviation.com screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

dviaviation.com

Air Safety Experts, Aircraft Accident Investigation - DVI Aviation

Page Load Speed

1.8 sec in total

First Response

123 ms

Resources Loaded

1.6 sec

Page Rendered

145 ms

dviaviation.com screenshot

About Website

Visit dviaviation.com now to see the best up-to-date DVI Aviation content and also check out these interesting facts you probably never knew about dviaviation.com

DVI Aviation is a multi-disciplinary team of aviation experts specializing in comprehensive airplane, aircraft and aviation accident investigations.

Visit dviaviation.com

Key Findings

We analyzed Dviaviation.com page load time and found that the first response time was 123 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

dviaviation.com performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value4.0 s

81/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

Network Requests Diagram

dviaviation.com

123 ms

ga.js

7 ms

button.css

810 ms

browserBehavior.js

42 ms

utils.js

43 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 47% of them (31 requests) were addressed to the original Dviaviation.com, 45% (30 requests) were made to Assets.myregisteredsite.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (811 ms) relates to the external source Assets.myregisteredsite.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 143.3 kB (21%)

Content Size

690.3 kB

After Optimization

547.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dviaviation.com main page is 690.3 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. 30% of websites need less resources to load. Images take 525.4 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 45.2 kB

  • Original 52.3 kB
  • After minification 51.2 kB
  • After compression 7.1 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 45.2 kB or 86% of the original size.

Image Optimization

-15%

Potential reduce by 77.0 kB

  • Original 525.4 kB
  • After minification 448.4 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, DVI Aviation needs image optimization as it can save up to 77.0 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-15%

Potential reduce by 15.3 kB

  • Original 103.0 kB
  • After minification 102.0 kB
  • After compression 87.8 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 15.3 kB or 15% of the original size.

CSS Optimization

-61%

Potential reduce by 5.9 kB

  • Original 9.6 kB
  • After minification 8.6 kB
  • After compression 3.7 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. Dviaviation.com needs all CSS files to be minified and compressed as it can save up to 5.9 kB or 61% of the original size.

Requests Breakdown

Number of requests can be reduced by 40 (67%)

Requests Now

60

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DVI Aviation. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dviaviation.com

dviaviation.com

123 ms

ga.js

ga.js

7 ms

button.css

button.css

810 ms

browserBehavior.js

browserBehavior.js

42 ms

utils.js

utils.js

43 ms

shared.js

shared.js

811 ms

navigation.js

navigation.js

43 ms

uaDefaultStylesReset.css

uaDefaultStylesReset.css

810 ms

popup.js

popup.js

44 ms

ResourceLoader.js

ResourceLoader.js

811 ms

__utm.gif

__utm.gif

12 ms

button.css

button.css

86 ms

uaDefaultStylesReset.css

uaDefaultStylesReset.css

99 ms

shared.js

shared.js

100 ms

ResourceLoader.js

ResourceLoader.js

108 ms

googleFonts.css

googleFonts.css

17 ms

css

css

37 ms

jquery.js

jquery.js

37 ms

navigation.js

navigation.js

19 ms

core.js

core.js

20 ms

footercontact.js

footercontact.js

20 ms

jqueryvalidate.js

jqueryvalidate.js

20 ms

form.js

form.js

21 ms

hoverIntent.js

hoverIntent.js

18 ms

bgIframe.js

bgIframe.js

19 ms

superfish.js

superfish.js

20 ms

handler.js

handler.js

21 ms

helper.js

helper.js

35 ms

positioner.js

positioner.js

41 ms

structure.css

structure.css

40 ms

jquery.json-2.2.min.js

jquery.json-2.2.min.js

39 ms

templates.js

templates.js

50 ms

footercontact.css

footercontact.css

59 ms

utils.js

utils.js

58 ms

resources.js

resources.js

58 ms

templates.js

templates.js

68 ms

form.css

form.css

73 ms

form_generic.css

form_generic.css

74 ms

67019002.jpeg

67019002.jpeg

55 ms

50153816.jpg

50153816.jpg

113 ms

67019009.jpeg

67019009.jpeg

55 ms

67019010.jpeg

67019010.jpeg

55 ms

67019008.jpeg

67019008.jpeg

53 ms

67019005.jpeg

67019005.jpeg

92 ms

67019004.jpeg

67019004.jpeg

90 ms

67019019.jpeg

67019019.jpeg

91 ms

67019024.gif

67019024.gif

90 ms

67019025.gif

67019025.gif

92 ms

38731232.png

38731232.png

268 ms

62185223_scaled_303x225.png

62185223_scaled_303x225.png

154 ms

123079827_scaled_646x182.jpg

123079827_scaled_646x182.jpg

139 ms

67019026.jpeg

67019026.jpeg

124 ms

9.gif

9.gif

123 ms

67019027.jpeg

67019027.jpeg

246 ms

67019006.jpeg

67019006.jpeg

250 ms

67019007.jpeg

67019007.jpeg

250 ms

67019003.jpeg

67019003.jpeg

249 ms

67019012.jpeg

67019012.jpeg

249 ms

67019011.jpeg

67019011.jpeg

259 ms

67019013.jpeg

67019013.jpeg

317 ms

logger.php

logger.php

67 ms

67019015.jpeg

67019015.jpeg

237 ms

67019014.jpeg

67019014.jpeg

264 ms

67019018.jpeg

67019018.jpeg

237 ms

67019017.jpeg

67019017.jpeg

293 ms

logger.php

logger.php

71 ms

Accessibility Review

dviaviation.com accessibility score

100

Accessibility Issues

Best Practices

dviaviation.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dviaviation.com SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dviaviation.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Dviaviation.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

dviaviation.com

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