Tools & Wizards About Us
ijsseldeltacenter.nl screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

ijsseldeltacenter.nl

Lumen Hotel & Events | Alles onder één dak in Regio Zwolle

Page Load Speed

11.4 sec in total

First Response

1000 ms

Resources Loaded

9.4 sec

Page Rendered

978 ms

ijsseldeltacenter.nl screenshot

About Website

Welcome to ijsseldeltacenter.nl homepage info - get ready to check Ijsseldeltacenter best content right away, or after learning these important things about ijsseldeltacenter.nl

Welkom bij Lumen Hotel & Events ✓ Evenementen ✓ Vergaderen ✓ Overnachten ✓ Eten & Drinken

Visit ijsseldeltacenter.nl

Key Findings

We analyzed Ijsseldeltacenter.nl page load time and found that the first response time was 1000 ms and then it took 10.4 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

ijsseldeltacenter.nl performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value6.0 s

13/100

25%

SI (Speed Index)

Value8.8 s

15/100

10%

TBT (Total Blocking Time)

Value5,610 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value17.5 s

4/100

10%

Network Requests Diagram

www.lumenzwolle.nl

1000 ms

20fd03112b930831acb1fb8daf34c8e8.css

563 ms

min-shbp.min.css

108 ms

min-shbp-header-legacy.min.css

263 ms

min-768-max-1024-l.min.css

280 ms

Our browser made a total of 166 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Ijsseldeltacenter.nl, 4% (6 requests) were made to Use.fontawesome.com and 3% (5 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Lumenzwolle.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (53%)

Content Size

2.2 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ijsseldeltacenter.nl main page is 2.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 1.1 MB

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 162.3 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 1.1 MB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 21.8 kB

  • Original 838.6 kB
  • After minification 816.9 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. Ijsseldeltacenter images are well optimized though.

JavaScript Optimization

-45%

Potential reduce by 36.9 kB

  • Original 81.3 kB
  • After minification 81.3 kB
  • After compression 44.4 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 36.9 kB or 45% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 24.3 kB
  • After minification 24.3 kB
  • After compression 24.3 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. Ijsseldeltacenter.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 126 (83%)

Requests Now

152

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 152 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ijsseldeltacenter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 88 to 1 for JavaScripts and from 40 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.lumenzwolle.nl

www.lumenzwolle.nl

1000 ms

20fd03112b930831acb1fb8daf34c8e8.css

20fd03112b930831acb1fb8daf34c8e8.css

563 ms

min-shbp.min.css

min-shbp.min.css

108 ms

min-shbp-header-legacy.min.css

min-shbp-header-legacy.min.css

263 ms

min-768-max-1024-l.min.css

min-768-max-1024-l.min.css

280 ms

min-768-max-1024-l-header-legacy.min.css

min-768-max-1024-l-header-legacy.min.css

288 ms

min-sh-cbp.min.css

min-sh-cbp.min.css

291 ms

jquery.min.js

jquery.min.js

396 ms

jquery-migrate.min.js

jquery-migrate.min.js

309 ms

wp-customer-reviews.js

wp-customer-reviews.js

316 ms

cookie-law-info-public.js

cookie-law-info-public.js

467 ms

easy-testimonials-reveal.js

easy-testimonials-reveal.js

389 ms

fa-regular-400.woff2&display=swap

fa-regular-400.woff2&display=swap

259 ms

fa-solid-900.woff2&display=swap

fa-solid-900.woff2&display=swap

305 ms

js

js

55 ms

detectmobilebrowser.js

detectmobilebrowser.js

387 ms

mystickymenu.min.js

mystickymenu.min.js

408 ms

front-end-free.1.20.2.js

front-end-free.1.20.2.js

413 ms

core.min.js

core.min.js

860 ms

pum-site-scripts.js

pum-site-scripts.js

927 ms

api.js

api.js

40 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

926 ms

wp-polyfill.min.js

wp-polyfill.min.js

922 ms

index.js

index.js

924 ms

jquery.cycle2.min.js

jquery.cycle2.min.js

923 ms

utils.js

utils.js

924 ms

jquery.form-validator.min.js

jquery.form-validator.min.js

1077 ms

booking-form.js

booking-form.js

1080 ms

jquery.plugin.min.js

jquery.plugin.min.js

1075 ms

jquery.datepick.min.js

jquery.datepick.min.js

1080 ms

hb-datepick.js

hb-datepick.js

1086 ms

forms.js

forms.js

1085 ms

fusion-vertical-menu-widget.js

fusion-vertical-menu-widget.js

1193 ms

cssua.js

cssua.js

1194 ms

modernizr.js

modernizr.js

1197 ms

fusion.js

fusion.js

1122 ms

bootstrap.transition.js

bootstrap.transition.js

1120 ms

bootstrap.tooltip.js

bootstrap.tooltip.js

1472 ms

jquery.requestAnimationFrame.js

jquery.requestAnimationFrame.js

1524 ms

jquery.easing.js

jquery.easing.js

1527 ms

jquery.fitvids.js

jquery.fitvids.js

1522 ms

jquery.flexslider.js

jquery.flexslider.js

1433 ms

css

css

74 ms

jquery.ilightbox.js

jquery.ilightbox.js

1284 ms

jquery.mousewheel.js

jquery.mousewheel.js

1277 ms

jquery.placeholder.js

jquery.placeholder.js

1461 ms

jquery.fade.js

jquery.fade.js

1452 ms

fusion-equal-heights.js

fusion-equal-heights.js

1429 ms

fusion-parallax.js

fusion-parallax.js

1427 ms

fusion-video-general.js

fusion-video-general.js

1409 ms

fusion-video-bg.js

fusion-video-bg.js

1334 ms

fusion-lightbox.js

fusion-lightbox.js

1402 ms

fusion-tooltip.js

fusion-tooltip.js

1365 ms

fusion-sharing-box.js

fusion-sharing-box.js

1379 ms

jquery.sticky-kit.js

jquery.sticky-kit.js

1374 ms

hotjar-3074958.js

hotjar-3074958.js

606 ms

gtm.js

gtm.js

452 ms

fusion-youtube.js

fusion-youtube.js

909 ms

vimeoPlayer.js

vimeoPlayer.js

868 ms

avada-general-footer.js

avada-general-footer.js

943 ms

avada-quantity.js

avada-quantity.js

945 ms

avada-crossfade-images.js

avada-crossfade-images.js

941 ms

avada-select.js

avada-select.js

946 ms

avada-tabs-widget.js

avada-tabs-widget.js

953 ms

avada-wpml.js

avada-wpml.js

961 ms

fa-solid-900.woff

fa-solid-900.woff

196 ms

fa-solid-900.woff

fa-solid-900.woff

603 ms

fa-regular-400.woff

fa-regular-400.woff

551 ms

fa-regular-400.woff

fa-regular-400.woff

602 ms

recaptcha__en.js

recaptcha__en.js

552 ms

analytics.js

analytics.js

68 ms

conversion_async.js

conversion_async.js

508 ms

avada-contact-form-7.js

avada-contact-form-7.js

894 ms

jquery.elasticslider.js

jquery.elasticslider.js

888 ms

avada-live-search.js

avada-live-search.js

890 ms

fusion-alert.js

fusion-alert.js

889 ms

fusion-flexslider.js

fusion-flexslider.js

897 ms

fusion-animations.js

fusion-animations.js

900 ms

modules.cf44a0a6b448df1b035e.js

modules.cf44a0a6b448df1b035e.js

473 ms

fusion-column-legacy.js

fusion-column-legacy.js

953 ms

collect

collect

378 ms

jquery.textillate.js

jquery.textillate.js

878 ms

fusion-title.js

fusion-title.js

881 ms

fusion-button.js

fusion-button.js

615 ms

fusion-content-boxes.js

fusion-content-boxes.js

623 ms

fusion-container.js

fusion-container.js

614 ms

avada-elastic-slider.js

avada-elastic-slider.js

657 ms

avada-drop-down.js

avada-drop-down.js

657 ms

avada-to-top.js

avada-to-top.js

647 ms

avada-header.js

avada-header.js

665 ms

avada-menu.js

avada-menu.js

693 ms

bootstrap.scrollspy.js

bootstrap.scrollspy.js

737 ms

collect

collect

211 ms

77 ms

avada-scrollspy.js

avada-scrollspy.js

568 ms

fusion-responsive-typography.js

fusion-responsive-typography.js

569 ms

fusion-scroll-to-anchor.js

fusion-scroll-to-anchor.js

570 ms

fusion-general-global.js

fusion-general-global.js

604 ms

fusion-video.js

fusion-video.js

568 ms

fusion-column.js

fusion-column.js

593 ms

77 ms

lazyload.min.js

lazyload.min.js

766 ms

fa-solid-900.woff

fa-solid-900.woff

897 ms

ga-audiences

ga-audiences

29 ms

fa-regular-400.woff

fa-regular-400.woff

767 ms

awb-icons.woff

awb-icons.woff

761 ms

Lumen-zwolle-logo.fw_.png

Lumen-zwolle-logo.fw_.png

757 ms

Lumen-zwolle-logo-bol.fw_.png

Lumen-zwolle-logo-bol.fw_.png

758 ms

21 ms

nl.png

nl.png

702 ms

en.png

en.png

703 ms

de.png

de.png

701 ms

Voorzijde-groot-1.jpg

Voorzijde-groot-1.jpg

1180 ms

loader-2x.gif

loader-2x.gif

801 ms

Loggia.jpg

Loggia.jpg

1127 ms

Kamer-Loggia02-1.jpg

Kamer-Loggia02-1.jpg

1045 ms

Kamer-Suite05.jpg

Kamer-Suite05.jpg

1072 ms

1-2-e1639141146941.jpg

1-2-e1639141146941.jpg

1038 ms

ZW_LUM-Restaurant-Bluefinger02-1.jpg

ZW_LUM-Restaurant-Bluefinger02-1.jpg

1072 ms

ZW_LUM-Restaurant-Bluefinger02.jpg

ZW_LUM-Restaurant-Bluefinger02.jpg

1055 ms

Lumen-PNG-witteletters-e1634714362145.png

Lumen-PNG-witteletters-e1634714362145.png

1055 ms

TC_2021_L_TRANSPARENT_BG_CMYK-01-150x150.png

TC_2021_L_TRANSPARENT_BG_CMYK-01-150x150.png

974 ms

anchor

anchor

128 ms

styles__ltr.css

styles__ltr.css

106 ms

recaptcha__en.js

recaptcha__en.js

114 ms

webworker.js

webworker.js

312 ms

logo_48.png

logo_48.png

235 ms

recaptcha__en.js

recaptcha__en.js

114 ms

max-1c.min.css

max-1c.min.css

123 ms

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

85 ms

KFOmCnqEu92Fr1Mu4mxPKTU1Kg.ttf

KFOmCnqEu92Fr1Mu4mxPKTU1Kg.ttf

266 ms

KFOlCnqEu92Fr1MmEU9fBBc9AMP6lQ.ttf

KFOlCnqEu92Fr1MmEU9fBBc9AMP6lQ.ttf

267 ms

KFOlCnqEu92Fr1MmYUtfBBc9AMP6lQ.ttf

KFOlCnqEu92Fr1MmYUtfBBc9AMP6lQ.ttf

268 ms

max-2c.min.css

max-2c.min.css

238 ms

visit-data

visit-data

624 ms

min-2c-max-3c.min.css

min-2c-max-3c.min.css

108 ms

min-3c-max-4c.min.css

min-3c-max-4c.min.css

106 ms

min-4c-max-5c.min.css

min-4c-max-5c.min.css

105 ms

min-5c-max-6c.min.css

min-5c-max-6c.min.css

116 ms

content

content

757 ms

max-shbp.min.css

max-shbp.min.css

106 ms

max-shbp-header-legacy.min.css

max-shbp-header-legacy.min.css

106 ms

max-sh-shbp.min.css

max-sh-shbp.min.css

108 ms

max-sh-shbp-header-legacy.min.css

max-sh-shbp-header-legacy.min.css

112 ms

min-768-max-1024-p.min.css

min-768-max-1024-p.min.css

113 ms

min-768-max-1024-p-header-legacy.min.css

min-768-max-1024-p-header-legacy.min.css

112 ms

max-sh-cbp.min.css

max-sh-cbp.min.css

110 ms

max-sh-sbp.min.css

max-sh-sbp.min.css

113 ms

max-sh-640.min.css

max-sh-640.min.css

111 ms

max-shbp-18.min.css

max-shbp-18.min.css

105 ms

max-shbp-32.min.css

max-shbp-32.min.css

105 ms

max-640.min.css

max-640.min.css

105 ms

max-main.min.css

max-main.min.css

107 ms

max-cbp.min.css

max-cbp.min.css

105 ms

max-sh-cbp-cf7.min.css

max-sh-cbp-cf7.min.css

105 ms

max-sh-cbp-eslider.min.css

max-sh-cbp-eslider.min.css

106 ms

max-sh-cbp-social-sharing.min.css

max-sh-cbp-social-sharing.min.css

106 ms

max-sh-cbp.min.css

max-sh-cbp.min.css

105 ms

min-768-max-1024-p.min.css

min-768-max-1024-p.min.css

112 ms

max-640.min.css

max-640.min.css

109 ms

max-1c.css

max-1c.css

109 ms

max-2c.css

max-2c.css

106 ms

min-2c-max-3c.css

min-2c-max-3c.css

125 ms

min-3c-max-4c.css

min-3c-max-4c.css

112 ms

min-4c-max-5c.css

min-4c-max-5c.css

107 ms

min-5c-max-6c.css

min-5c-max-6c.css

118 ms

Accessibility Review

ijsseldeltacenter.nl accessibility score

95

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

ijsseldeltacenter.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

Page has valid source maps

SEO Factors

ijsseldeltacenter.nl SEO score

99

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

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 Ijsseldeltacenter.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 Ijsseldeltacenter.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

ijsseldeltacenter.nl

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