Tools & Wizards About Us
radboudgroep.nl screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

radboudgroep.nl

Scouting Radboudgroep Amstelveen

Page Load Speed

6.4 sec in total

First Response

310 ms

Resources Loaded

5.8 sec

Page Rendered

310 ms

radboudgroep.nl screenshot

About Website

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

De enige waterscouting in Amstelveen. Voor alle leeftijden vanaf 5 jaar. We zeilen elke zaterdag op de Poel, een veilige en een fantastische leerplek om te leren zeilen! Huur ons prachtige gebouw, die...

Visit radboudgroep.nl

Key Findings

We analyzed Radboudgroep.nl page load time and found that the first response time was 310 ms and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

radboudgroep.nl performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value8.8 s

16/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value0.082

94/100

15%

TTI (Time to Interactive)

Value11.3 s

19/100

10%

Network Requests Diagram

radboudgroep.nl

310 ms

www.radboudgroep.nl

1531 ms

wp-emoji-release.min.js

257 ms

style.min.css

278 ms

theme.min.css

281 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 76% of them (81 requests) were addressed to the original Radboudgroep.nl, 15% (16 requests) were made to Fonts.gstatic.com and 5% (5 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Radboudgroep.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 425.4 kB (23%)

Content Size

1.8 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Radboudgroep.nl main page is 1.8 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. 65% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 77.9 kB

  • Original 94.4 kB
  • After minification 90.0 kB
  • After compression 16.5 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 77.9 kB or 83% of the original size.

Image Optimization

-25%

Potential reduce by 301.4 kB

  • Original 1.2 MB
  • After minification 928.5 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. Obviously, Radboudgroep needs image optimization as it can save up to 301.4 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 33.1 kB

  • Original 340.9 kB
  • After minification 338.1 kB
  • After compression 307.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-7%

Potential reduce by 13.0 kB

  • Original 182.8 kB
  • After minification 182.7 kB
  • After compression 169.8 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. Radboudgroep.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 73 (88%)

Requests Now

83

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Radboudgroep. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 38 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

radboudgroep.nl

radboudgroep.nl

310 ms

www.radboudgroep.nl

www.radboudgroep.nl

1531 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

257 ms

style.min.css

style.min.css

278 ms

theme.min.css

theme.min.css

281 ms

style.min.css

style.min.css

281 ms

all.css

all.css

284 ms

bootstrap.min.css

bootstrap.min.css

286 ms

front.css

front.css

348 ms

theme-my-login.min.css

theme-my-login.min.css

370 ms

Default.css

Default.css

369 ms

all.min.css

all.min.css

371 ms

simple-line-icons.min.css

simple-line-icons.min.css

378 ms

magnific-popup.min.css

magnific-popup.min.css

379 ms

slick.min.css

slick.min.css

440 ms

style.min.css

style.min.css

556 ms

css

css

36 ms

css

css

37 ms

css

css

37 ms

default.min.css

default.min.css

460 ms

elementor-icons.min.css

elementor-icons.min.css

465 ms

frontend-legacy.min.css

frontend-legacy.min.css

471 ms

frontend.min.css

frontend.min.css

474 ms

post-731.css

post-731.css

532 ms

post-2.css

post-2.css

552 ms

widgets.css

widgets.css

565 ms

bootstrap.css

bootstrap.css

568 ms

bootstrap-theme.css

bootstrap-theme.css

574 ms

wpbc-tippy-popover.css

wpbc-tippy-popover.css

624 ms

wpbc-tippy-times.css

wpbc-tippy-times.css

643 ms

material-design-icons.css

material-design-icons.css

647 ms

wpbc_time-selector.css

wpbc_time-selector.css

652 ms

grey.css

grey.css

660 ms

client.css

client.css

662 ms

calendar.css

calendar.css

716 ms

standard.css

standard.css

735 ms

timeline_v2.css

timeline_v2.css

739 ms

timeline_skin_v2.css

timeline_skin_v2.css

740 ms

css

css

34 ms

jquery.min.js

jquery.min.js

757 ms

jquery-migrate.min.js

jquery-migrate.min.js

766 ms

css

css

22 ms

animations.min.css

animations.min.css

654 ms

popper.min.js

popper.min.js

578 ms

bootstrap.min.js

bootstrap.min.js

560 ms

front.js

front.js

566 ms

wpbc_vars.js

wpbc_vars.js

578 ms

popper.js

popper.js

575 ms

tippy-bundle.umd.js

tippy-bundle.umd.js

621 ms

jquery.datepick.wpbc.9.0.js

jquery.datepick.wpbc.9.0.js

579 ms

jquery.datepick-nl.js

jquery.datepick-nl.js

562 ms

client.js

client.js

563 ms

wpbc_times.js

wpbc_times.js

581 ms

wpbc_time-selector.js

wpbc_time-selector.js

577 ms

timeline_v2.js

timeline_v2.js

623 ms

gallery.min.js

gallery.min.js

618 ms

jquery.form.min.js

jquery.form.min.js

598 ms

theme-my-login.min.js

theme-my-login.min.js

593 ms

imagesloaded.min.js

imagesloaded.min.js

595 ms

magnific-popup.min.js

magnific-popup.min.js

588 ms

lightbox.min.js

lightbox.min.js

575 ms

main.min.js

main.min.js

580 ms

wp-embed.min.js

wp-embed.min.js

569 ms

mailchimp.min.js

mailchimp.min.js

593 ms

webpack.runtime.min.js

webpack.runtime.min.js

585 ms

frontend-modules.min.js

frontend-modules.min.js

585 ms

waypoints.min.js

waypoints.min.js

568 ms

core.min.js

core.min.js

571 ms

swiper.min.js

swiper.min.js

566 ms

share-link.min.js

share-link.min.js

561 ms

dialog.min.js

dialog.min.js

588 ms

frontend.min.js

frontend.min.js

589 ms

preloaded-modules.min.js

preloaded-modules.min.js

569 ms

underscore.min.js

underscore.min.js

570 ms

wp-util.min.js

wp-util.min.js

569 ms

frontend.min.js

frontend.min.js

560 ms

1f3c6.svg

1f3c6.svg

53 ms

embed

embed

218 ms

cropped-logo-met-lelie.png

cropped-logo-met-lelie.png

351 ms

pool-1024x461.jpg

pool-1024x461.jpg

424 ms

Oliebollenflyer-2022-1024x576.jpg

Oliebollenflyer-2022-1024x576.jpg

545 ms

IMG_20170211_202533-768x1024-1.jpg

IMG_20170211_202533-768x1024-1.jpg

565 ms

Capture.png

Capture.png

978 ms

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25 ms

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41 ms

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49 ms

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52 ms

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52 ms

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49 ms

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52 ms

fa-solid-900.woff

fa-solid-900.woff

436 ms

fa-solid-900.woff

fa-solid-900.woff

475 ms

fa-regular-400.woff

fa-regular-400.woff

483 ms

fa-regular-400.woff

fa-regular-400.woff

530 ms

Simple-Line-Icons.ttf

Simple-Line-Icons.ttf

572 ms

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69 ms

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68 ms

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69 ms

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68 ms

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70 ms

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69 ms

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70 ms

js

js

47 ms

2709.svg

2709.svg

53 ms

Accessibility Review

radboudgroep.nl accessibility score

88

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 match their roles

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

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

radboudgroep.nl best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

radboudgroep.nl SEO score

90

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 Radboudgroep.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 Radboudgroep.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

radboudgroep.nl

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