Tools & Wizards About Us
at.checkfelix.com screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    47% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

at.checkfelix.com

Billigflüge vergleichen - günstige Flüge mit checkfelix buchen

Page Load Speed

1.8 sec in total

First Response

259 ms

Resources Loaded

1.3 sec

Page Rendered

273 ms

at.checkfelix.com screenshot

About Website

Click here to check amazing At Checkfelix content for Austria. Otherwise, check out these important facts you probably never knew about at.checkfelix.com

Vergleiche Billigflüge zahlreicher Fluggesellschaften mit einem Klick: ✓ Flüge suchen & vergleichen ✓ Flüge finden ✓ Flüge online buchen. Starte jetzt den Preisvergleich mit der Flugsuchmaschine von c...

Visit at.checkfelix.com

Key Findings

We analyzed At.checkfelix.com page load time and found that the first response time was 259 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

at.checkfelix.com performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value2,330 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.0 s

26/100

10%

Network Requests Diagram

www.checkfelix.com

259 ms

r9widgets.css

14 ms

r9alien.css

59 ms

r9.css

104 ms

keel.less

19 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original At.checkfelix.com, 10% (7 requests) were made to A1.r9cdn.net and 10% (7 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (377 ms) relates to the external source Facebook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 262.3 kB (64%)

Content Size

410.0 kB

After Optimization

147.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of At.checkfelix.com main page is 410.0 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. 70% of websites need less resources to load. Javascripts take 317.8 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 68.3 kB

  • Original 90.7 kB
  • After minification 90.3 kB
  • After compression 22.4 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 68.3 kB or 75% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 1.5 kB
  • After minification 1.5 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. At Checkfelix images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 194.0 kB

  • Original 317.8 kB
  • After minification 317.8 kB
  • After compression 123.8 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 194.0 kB or 61% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (66%)

Requests Now

67

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of At Checkfelix. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.checkfelix.com

www.checkfelix.com

259 ms

r9widgets.css

r9widgets.css

14 ms

r9alien.css

r9alien.css

59 ms

r9.css

r9.css

104 ms

keel.less

keel.less

19 ms

r9.flight.css

r9.flight.css

65 ms

affiliate.css

affiliate.css

36 ms

checkfelix.less

checkfelix.less

48 ms

r9alien.js

r9alien.js

74 ms

r9.js

r9.js

73 ms

streaming.js

streaming.js

50 ms

fdcommon.js

fdcommon.js

57 ms

fd.js

fd.js

43 ms

checkfelixat_f9.js

checkfelixat_f9.js

55 ms

time-mismatch.gif

time-mismatch.gif

266 ms

like.php

like.php

377 ms

pixel.gif

pixel.gif

251 ms

gtm.js

gtm.js

182 ms

gpt.js

gpt.js

181 ms

gethistory

gethistory

144 ms

checkfelix_logo.png

checkfelix_logo.png

68 ms

asset-menu.png

asset-menu.png

72 ms

16x16-16-offset-menu-icon.png

16x16-16-offset-menu-icon.png

72 ms

16x16-16-offset-checkbox-sprite.png

16x16-16-offset-checkbox-sprite.png

74 ms

calendar-close-x.png

calendar-close-x.png

73 ms

lsn-minus-plus-icon.png

lsn-minus-plus-icon.png

68 ms

airplane.png

airplane.png

74 ms

calendar.png

calendar.png

74 ms

pig.png

pig.png

76 ms

bruessel.png

bruessel.png

130 ms

guenstig.png

guenstig.png

77 ms

london.png

london.png

78 ms

bangkok.png

bangkok.png

127 ms

zuerich.png

zuerich.png

126 ms

arrow-checkbox-sprite-20x20-offset_30.png

arrow-checkbox-sprite-20x20-offset_30.png

76 ms

a-small-flag-sprite.png

a-small-flag-sprite.png

81 ms

a-close-x-medium.png

a-close-x-medium.png

82 ms

14x12-20-offset-airport-switch-arrows.png

14x12-20-offset-airport-switch-arrows.png

71 ms

21x24-21-offset-datepicker-icons.png

21x24-21-offset-datepicker-icons.png

69 ms

analytics.js

analytics.js

73 ms

pubads_impl_81.js

pubads_impl_81.js

56 ms

conversion_async.js

conversion_async.js

83 ms

bat.js

bat.js

85 ms

158 ms

d2s3bizpgknsvz.cloudfront.net

d2s3bizpgknsvz.cloudfront.net

157 ms

exactag.js

exactag.js

180 ms

ytc.js

ytc.js

124 ms

bk-coretag.js

bk-coretag.js

139 ms

activityi;src=5142311;type=visit0;cat=front0;u9=EUR;u12=XRLHKq-qBi_blbHG4MWIcPdNVSU;u14=frontdoor;u15=main;u16=de_AT;u19=false;ord=6046073407889;~oref=http%3A%2F%2Fwww.checkfelix.com%2F

activityi;src=5142311;type=visit0;cat=front0;u9=EUR;u12=XRLHKq-qBi_blbHG4MWIcPdNVSU;u14=frontdoor;u15=main;u16=de_AT;u19=false;ord=6046073407889;~oref=http%3A%2F%2Fwww.checkfelix.com%2F

97 ms

container.html

container.html

75 ms

ecommerce.js

ecommerce.js

69 ms

qbEHJxuVK5u.js

qbEHJxuVK5u.js

306 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

325 ms

sdk.js

sdk.js

193 ms

platform.js

platform.js

244 ms

collect

collect

20 ms

collect

collect

205 ms

174 ms

collect

collect

55 ms

collect

collect

56 ms

collect

collect

56 ms

collect

collect

56 ms

77 ms

xd_arbiter.php

xd_arbiter.php

66 ms

xd_arbiter.php

xd_arbiter.php

136 ms

ga-audiences

ga-audiences

31 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

14 ms

iframe

iframe

40 ms

1233565733-idpiframe.js

1233565733-idpiframe.js

68 ms

Accessibility Review

at.checkfelix.com accessibility score

54

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

[role] values are not valid

High

[aria-*] attributes are not valid or misspelled

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

<frame> or <iframe> elements do not have a title

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

at.checkfelix.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

at.checkfelix.com SEO score

100

Search Engine Optimization Advices

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 At.checkfelix.com 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 At.checkfelix.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

at.checkfelix.com

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