Tools & Wizards About Us

Report Summary

  • 67

    Performance

    Renders faster than
    79% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

adv.aero

Unsere Flughäfen – Regionale Stärke, Globaler Anschluss

Page Load Speed

3.8 sec in total

First Response

309 ms

Resources Loaded

3.1 sec

Page Rendered

402 ms

About Website

Click here to check amazing Adv content. Otherwise, check out these important facts you probably never knew about adv.aero

Der Flughafenverband ADV ist Berater und Partner von Wirtschaft, Politik und Regionen und setzt sich für eine leistungsfähige Flughafeninfrastruktur ein.

Visit adv.aero

Key Findings

We analyzed Adv.aero page load time and found that the first response time was 309 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

adv.aero performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value220 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.103

89/100

15%

TTI (Time to Interactive)

Value5.0 s

76/100

10%

Network Requests Diagram

adv.aero

309 ms

www.adv.aero

959 ms

wp-emoji-release.min.js

174 ms

styles.css

268 ms

owl.carousel.min.css

282 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 99% of them (77 requests) were addressed to the original Adv.aero, 1% (1 request) were made to . The less responsive or slowest element that took the longest time to load (959 ms) belongs to the original domain Adv.aero.

Page Optimization Overview & Recommendations

Page size can be reduced by 298.9 kB (8%)

Content Size

3.9 MB

After Optimization

3.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Adv.aero main page is 3.9 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. 50% of websites need less resources to load. Images take 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 71.7 kB

  • Original 86.9 kB
  • After minification 79.4 kB
  • After compression 15.2 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 71.7 kB or 83% of the original size.

Image Optimization

-6%

Potential reduce by 207.4 kB

  • Original 3.6 MB
  • After minification 3.4 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. Adv images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 10.3 kB

  • Original 153.3 kB
  • After minification 153.3 kB
  • After compression 143.0 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

-13%

Potential reduce by 9.6 kB

  • Original 71.3 kB
  • After minification 71.2 kB
  • After compression 61.8 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. Adv.aero needs all CSS files to be minified and compressed as it can save up to 9.6 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (59%)

Requests Now

75

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Adv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

adv.aero accessibility score

76

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not have valid values

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

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

adv.aero best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

adv.aero SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

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