Tools & Wizards About Us
avdelphi.com screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

avdelphi.com

AvDelphi - One place for all your aviation data requirements

Page Load Speed

3.7 sec in total

First Response

199 ms

Resources Loaded

3.2 sec

Page Rendered

240 ms

avdelphi.com screenshot

About Website

Welcome to avdelphi.com homepage info - get ready to check Av Delphi best content right away, or after learning these important things about avdelphi.com

AvDelphi is an aviation data and services company - based in Switzerland - with global reach. Our website provides a comprehensive collection of aviation data including airframe and registration data,...

Visit avdelphi.com

Key Findings

We analyzed Avdelphi.com page load time and found that the first response time was 199 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

avdelphi.com performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value33.7 s

0/100

25%

SI (Speed Index)

Value12.1 s

3/100

10%

TBT (Total Blocking Time)

Value250 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

avdelphi.com

199 ms

www.avdelphi.com

422 ms

main.css

397 ms

modern-ticker.css

304 ms

modern-ticker-theme.css

306 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 63% of them (24 requests) were addressed to the original Avdelphi.com, 32% (12 requests) were made to Images.avdelphi.com and 3% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Images.avdelphi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 129.8 kB (2%)

Content Size

5.5 MB

After Optimization

5.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Avdelphi.com main page is 5.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 5.0 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 50.6 kB

  • Original 59.7 kB
  • After minification 44.6 kB
  • After compression 9.1 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. This page needs HTML code to be minified as it can gain 15.0 kB, which is 25% 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 50.6 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 78.8 kB

  • Original 5.0 MB
  • After minification 4.9 MB

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. Av Delphi images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 24 B

  • Original 405.2 kB
  • After minification 405.2 kB
  • After compression 405.2 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

-4%

Potential reduce by 314 B

  • Original 8.3 kB
  • After minification 8.3 kB
  • After compression 8.0 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. Avdelphi.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 4 (12%)

Requests Now

34

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Av Delphi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

avdelphi.com

avdelphi.com

199 ms

www.avdelphi.com

www.avdelphi.com

422 ms

main.css

main.css

397 ms

modern-ticker.css

modern-ticker.css

304 ms

modern-ticker-theme.css

modern-ticker-theme.css

306 ms

e4334ff7973ef2f5b9c39c0d1df3d63b37fadb6c.js

e4334ff7973ef2f5b9c39c0d1df3d63b37fadb6c.js

785 ms

navbar.min.js

navbar.min.js

437 ms

css

css

46 ms

font-awesome.min.css

font-awesome.min.css

282 ms

bg01.png

bg01.png

407 ms

bg02.png

bg02.png

408 ms

pause.png

pause.png

96 ms

arrow-prev.png

arrow-prev.png

282 ms

play.png

play.png

282 ms

arrow-next.png

arrow-next.png

295 ms

mastodon.png

mastodon.png

306 ms

twitterx.png

twitterx.png

322 ms

facebook.png

facebook.png

378 ms

linkedin.png

linkedin.png

574 ms

instagram.png

instagram.png

579 ms

tiktok.png

tiktok.png

575 ms

telegram.png

telegram.png

585 ms

bluesky.png

bluesky.png

601 ms

patreon.png

patreon.png

667 ms

github.png

github.png

861 ms

youtube.png

youtube.png

876 ms

banner.jpg

banner.jpg

572 ms

banner_747nose.png

banner_747nose.png

1059 ms

banner_747_anc_takeoff.jpg

banner_747_anc_takeoff.jpg

916 ms

banner_vpg.jpg

banner_vpg.jpg

931 ms

banner_t334.jpg

banner_t334.jpg

1208 ms

banner_lej_26r.jpg

banner_lej_26r.jpg

1129 ms

banner_biglittle.jpg

banner_biglittle.jpg

1435 ms

banner_bw_anc.jpg

banner_bw_anc.jpg

1765 ms

banner_t_362.jpg

banner_t_362.jpg

1623 ms

bg03.png

bg03.png

1342 ms

font

font

16 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1126 ms

Accessibility Review

avdelphi.com accessibility score

89

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.

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

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

avdelphi.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

avdelphi.com SEO score

83

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

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

    EN

  • Encoding

    UTF-8

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

avdelphi.com

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