Tools & Wizards About Us
klm.nl screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

klm.nl

KLM Royal Dutch Airlines - Boek vluchten online - KLM Nederland

Page Load Speed

2 sec in total

First Response

518 ms

Resources Loaded

1.2 sec

Page Rendered

291 ms

klm.nl screenshot

About Website

Click here to check amazing KLM content for Netherlands. Otherwise, check out these important facts you probably never knew about klm.nl

Vergelijk en boek uw vliegtickets bij KLM, bekijk goede lastminute aanbiedingen, ontdek alle bestemmingen, check online in, boek stoelen, hotels en meer. - KLM Nederland

Visit klm.nl

Key Findings

We analyzed Klm.nl page load time and found that the first response time was 518 ms and then it took 1.5 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

klm.nl performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value19.6 s

0/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value20,690 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value31.6 s

0/100

10%

Network Requests Diagram

klm.nl

518 ms

nl

61 ms

core-nl.css

83 ms

homepage.css

8 ms

require-afkl.js

96 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Klm.nl, 45% (24 requests) were made to Klm.com and 43% (23 requests) were made to Core.static-afkl.com. The less responsive or slowest element that took the longest time to load (518 ms) belongs to the original domain Klm.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 159.8 kB (73%)

Content Size

220.2 kB

After Optimization

60.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Klm.nl main page is 220.2 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. 60% of websites need less resources to load. HTML takes 116.5 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 98.4 kB

  • Original 116.5 kB
  • After minification 83.8 kB
  • After compression 18.1 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 32.7 kB, which is 28% 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 98.4 kB or 84% of the original size.

Image Optimization

-22%

Potential reduce by 3.8 kB

  • Original 17.3 kB
  • After minification 13.4 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, KLM needs image optimization as it can save up to 3.8 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-62%

Potential reduce by 24.7 kB

  • Original 40.0 kB
  • After minification 37.9 kB
  • After compression 15.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 24.7 kB or 62% of the original size.

CSS Optimization

-71%

Potential reduce by 32.8 kB

  • Original 46.5 kB
  • After minification 46.0 kB
  • After compression 13.6 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. Klm.nl needs all CSS files to be minified and compressed as it can save up to 32.8 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (71%)

Requests Now

49

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KLM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

klm.nl

klm.nl

518 ms

nl

nl

61 ms

core-nl.css

core-nl.css

83 ms

homepage.css

homepage.css

8 ms

require-afkl.js

require-afkl.js

96 ms

g-core-v2.js

g-core-v2.js

101 ms

local.js

local.js

113 ms

header_tc.js

header_tc.js

12 ms

search-form-homepage.css

search-form-homepage.css

10 ms

homepage.js

homepage.js

10 ms

tc.js

tc.js

13 ms

klm_head@2x.png

klm_head@2x.png

86 ms

loading_light.svg

loading_light.svg

75 ms

273 ms

ams_klm.js

ams_klm.js

112 ms

qmon.js

qmon.js

37 ms

tms_bootstrap.js

tms_bootstrap.js

37 ms

webtrends.min.js

webtrends.min.js

35 ms

rda_regular_2x_tcm541-466994.png

rda_regular_2x_tcm541-466994.png

33 ms

klm_skyteam@2x.png

klm_skyteam@2x.png

32 ms

netherlands_tcm541-186608.gif

netherlands_tcm541-186608.gif

32 ms

blank.gif

blank.gif

33 ms

tower_icon_tcm541-586644.png

tower_icon_tcm541-586644.png

32 ms

map_icon_tcm541-586645.png

map_icon_tcm541-586645.png

32 ms

SearchHomePageController.js

SearchHomePageController.js

30 ms

g-core-css.js

g-core-css.js

19 ms

g-utils.js

g-utils.js

15 ms

g-hash.js

g-hash.js

22 ms

g-header-footer.js

g-header-footer.js

22 ms

base.controller.js

base.controller.js

8 ms

wtid.js

wtid.js

64 ms

g-locationpicker.js

g-locationpicker.js

44 ms

g-datepicker.js

g-datepicker.js

45 ms

DateHelper.js

DateHelper.js

43 ms

g-dropover.js

g-dropover.js

43 ms

dropover-events.js

dropover-events.js

43 ms

g-keymapper.js

g-keymapper.js

28 ms

klm_head@2x.png

klm_head@2x.png

72 ms

g-carousel.js

g-carousel.js

51 ms

appbannerconfig.js

appbannerconfig.js

97 ms

sa.js

sa.js

84 ms

tc-loader.js

tc-loader.js

28 ms

b5293189eb0ee2abcefd1056f5ec6dc0_tcm541-619401.jpg

b5293189eb0ee2abcefd1056f5ec6dc0_tcm541-619401.jpg

109 ms

ce393d0069e679e13dab4bc35caf90b6_tcm541-493830.jpg

ce393d0069e679e13dab4bc35caf90b6_tcm541-493830.jpg

55 ms

NLFYNDTrigger296x184WBC_tcm541-609322.jpg

NLFYNDTrigger296x184WBC_tcm541-609322.jpg

109 ms

klmicons.ttf

klmicons.ttf

53 ms

NoaLTW02-Light.woff

NoaLTW02-Light.woff

54 ms

g-locationpicker-i18n.js

g-locationpicker-i18n.js

212 ms

moment.js

moment.js

50 ms

nl.js

nl.js

49 ms

g-carousel-arrows.png

g-carousel-arrows.png

66 ms

tc.js

tc.js

49 ms

93 ms

Accessibility Review

klm.nl accessibility score

92

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

Best Practices

klm.nl 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

klm.nl SEO score

91

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

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

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

klm.nl

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