Tools & Wizards About Us
keng-leiden.nl screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

keng-leiden.nl

K&G Leiden - Muziekvereniging van wereldformaat

Page Load Speed

9.5 sec in total

First Response

91 ms

Resources Loaded

8.3 sec

Page Rendered

1.1 sec

keng-leiden.nl screenshot

About Website

Visit keng-leiden.nl now to see the best up-to-date Keng Leiden content and also check out these interesting facts you probably never knew about keng-leiden.nl

Chr. Muziekvereniging Kunst en Genoegen, in de volksmond beter bekend als K&G. De orkesten: Show- & Marchingband K&G, Jong K&G, K&G 3 en K&G University.

Visit keng-leiden.nl

Key Findings

We analyzed Keng-leiden.nl page load time and found that the first response time was 91 ms and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

keng-leiden.nl performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value50.0 s

0/100

25%

SI (Speed Index)

Value28.2 s

0/100

10%

TBT (Total Blocking Time)

Value2,840 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.053

98/100

15%

TTI (Time to Interactive)

Value41.7 s

0/100

10%

Network Requests Diagram

keng-leiden.nl

91 ms

www.keng-leiden.nl

4243 ms

css

57 ms

autoptimize_04984cc2f692ac3a80528636af13813e.css

267 ms

jquery.min.js

125 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 33% of them (27 requests) were addressed to the original Keng-leiden.nl, 20% (16 requests) were made to Fonts.gstatic.com and 13% (11 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (4.2 sec) belongs to the original domain Keng-leiden.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 455.7 kB (31%)

Content Size

1.4 MB

After Optimization

993.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Keng-leiden.nl main page is 1.4 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. Only a small number of websites need less resources to load. Images take 727.9 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 43.2 kB

  • Original 55.3 kB
  • After minification 55.3 kB
  • After compression 12.1 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 43.2 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 727.9 kB
  • After minification 727.9 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. Keng Leiden images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 24.4 kB

  • Original 103.4 kB
  • After minification 103.4 kB
  • After compression 79.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 24.4 kB or 24% of the original size.

CSS Optimization

-69%

Potential reduce by 388.0 kB

  • Original 562.8 kB
  • After minification 562.4 kB
  • After compression 174.7 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. Keng-leiden.nl needs all CSS files to be minified and compressed as it can save up to 388.0 kB or 69% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (50%)

Requests Now

56

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Keng Leiden. 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 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

keng-leiden.nl

keng-leiden.nl

91 ms

www.keng-leiden.nl

www.keng-leiden.nl

4243 ms

css

css

57 ms

autoptimize_04984cc2f692ac3a80528636af13813e.css

autoptimize_04984cc2f692ac3a80528636af13813e.css

267 ms

jquery.min.js

jquery.min.js

125 ms

js

js

78 ms

widgets.js

widgets.js

24 ms

autoptimize_9502ca4331f73a62eb969c48b61a2916.js

autoptimize_9502ca4331f73a62eb969c48b61a2916.js

137 ms

392 ms

168px-Download_on_iTunes.svg.png

168px-Download_on_iTunes.svg.png

377 ms

KG_logo.png

KG_logo.png

460 ms

SMB.svg

SMB.svg

801 ms

KGG.svg

KGG.svg

1177 ms

KG3.svg

KG3.svg

1345 ms

gezamelijk.svg

gezamelijk.svg

1823 ms

307692049_522513516543108_1419252170720279677_n-600x400.jpeg

307692049_522513516543108_1419252170720279677_n-600x400.jpeg

458 ms

305992018_517167150411078_1170835565736883120_n-600x400.jpeg

305992018_517167150411078_1170835565736883120_n-600x400.jpeg

959 ms

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964 ms

JKG.svg

JKG.svg

856 ms

245013628_276930751101387_3934153090786222058_n.jpg

245013628_276930751101387_3934153090786222058_n.jpg

965 ms

fb_bericht.jpg

fb_bericht.jpg

1173 ms

297097924_2124194381088655_1478309527631238232_n.jpg

297097924_2124194381088655_1478309527631238232_n.jpg

1302 ms

memoriam.jpg

memoriam.jpg

1171 ms

onder.svg

onder.svg

1337 ms

KenG-sponsors-150x150.png

KenG-sponsors-150x150.png

3571 ms

back.svg

back.svg

1388 ms

analytics.js

analytics.js

149 ms

js

js

149 ms

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136 ms

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148 ms

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246 ms

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282 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVc.ttf

283 ms

modules.ttf

modules.ttf

1457 ms

fa-brands-400.woff

fa-brands-400.woff

1492 ms

fa-regular-400.woff

fa-regular-400.woff

1490 ms

fa-solid-900.woff

fa-solid-900.woff

1492 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

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280 ms

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281 ms

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280 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aX8.ttf

281 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Hw5aX8.ttf

316 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Hw5aX8.ttf

315 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCs16Hw5aX8.ttf

313 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr6Hw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr6Hw5aX8.ttf

314 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Xw5aX8.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Xw5aX8.ttf

314 ms

widget_iframe.c4bdc17e77719578b594d5555bee90db.html

widget_iframe.c4bdc17e77719578b594d5555bee90db.html

66 ms

settings

settings

518 ms

collect

collect

137 ms

177 ms

www-player.css

www-player.css

81 ms

www-embed-player.js

www-embed-player.js

121 ms

base.js

base.js

165 ms

fetch-polyfill.js

fetch-polyfill.js

119 ms

1

1

420 ms

ad_status.js

ad_status.js

709 ms

horizon_timeline.4836f7a62ef55f5880337b3b6602854f.js

horizon_timeline.4836f7a62ef55f5880337b3b6602854f.js

516 ms

embeds

embeds

515 ms

error-page.8351589d.css

error-page.8351589d.css

640 ms

optimize.js

optimize.js

857 ms

gtm.ead0f304.js

gtm.ead0f304.js

860 ms

retargeting-pixels.1fa1ceda.js

retargeting-pixels.1fa1ceda.js

1411 ms

error-page-logo.ebe42ce5.svg

error-page-logo.ebe42ce5.svg

1412 ms

gJfj2lBrymlHLmhPScFZFm4D3a7BBd9OMx4--DsdpK8.js

gJfj2lBrymlHLmhPScFZFm4D3a7BBd9OMx4--DsdpK8.js

1288 ms

embed.js

embed.js

396 ms

AMLnZu_aZw8Nnz_lWkfhjS3XVSL9sy5SAk6iGQhGKUhZ_w=s68-c-k-c0x00ffffff-no-rj

AMLnZu_aZw8Nnz_lWkfhjS3XVSL9sy5SAk6iGQhGKUhZ_w=s68-c-k-c0x00ffffff-no-rj

1367 ms

id

id

459 ms

KunstenGenoegen

KunstenGenoegen

818 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

245 ms

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KFOlCnqEu92Fr1MmEU9fBBc9.ttf

244 ms

Create

Create

464 ms

polyfills-57d3feabe8bfd4ee389c.js

polyfills-57d3feabe8bfd4ee389c.js

82 ms

runtime-c5040a30986fc1d092cc.js

runtime-c5040a30986fc1d092cc.js

329 ms

modules.c7def0268c66f6a548ed.js

modules.c7def0268c66f6a548ed.js

450 ms

main-e9db78f5e7b3d83edd5e.js

main-e9db78f5e7b3d83edd5e.js

450 ms

_app-6b59be76f6e3292c4dd6.js

_app-6b59be76f6e3292c4dd6.js

436 ms

%5BscreenName%5D-568c81a96d7917ec4ebb.js

%5BscreenName%5D-568c81a96d7917ec4ebb.js

436 ms

_buildManifest.js

_buildManifest.js

435 ms

_ssgManifest.js

_ssgManifest.js

447 ms

GenerateIT

GenerateIT

13 ms

autoptimize_541e2ced151704f4ff1844c6de47ec02.css

autoptimize_541e2ced151704f4ff1844c6de47ec02.css

21 ms

autoptimize_400da7a94d1ca504d25568404e3d2406.css

autoptimize_400da7a94d1ca504d25568404e3d2406.css

49 ms

Accessibility Review

keng-leiden.nl accessibility score

66

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

keng-leiden.nl best practices score

83

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

keng-leiden.nl SEO score

91

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

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

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 Keng-leiden.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 Keng-leiden.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

keng-leiden.nl

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