Tools & Wizards About Us
streng.nl screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

streng.nl

Management Opleidingen - Streng Dijkerman & Partners

Page Load Speed

6.4 sec in total

First Response

1.1 sec

Resources Loaded

4.7 sec

Page Rendered

633 ms

streng.nl screenshot

About Website

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

Management opleidingen, communicatie trainingen & time management cursussen. ✓ Relevante theorie ✓ Direct toepasbaar in praktijk ✓

Visit streng.nl

Key Findings

We analyzed Streng.nl page load time and found that the first response time was 1.1 sec and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

streng.nl performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value11.0 s

0/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value3,600 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value14.6 s

8/100

10%

Network Requests Diagram

www.streng.nl

1066 ms

js

234 ms

wp-emoji-release.min.js

226 ms

style.min.css

313 ms

style-wpzoom-social-icons.css

393 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 69% of them (46 requests) were addressed to the original Streng.nl, 9% (6 requests) were made to Springest.nl and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Streng.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 124.0 kB (20%)

Content Size

635.0 kB

After Optimization

511.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Streng.nl main page is 635.0 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. 55% of websites need less resources to load. Images take 261.6 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 86.2 kB

  • Original 107.9 kB
  • After minification 105.2 kB
  • After compression 21.7 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 86.2 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 373 B

  • Original 261.6 kB
  • After minification 261.2 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. Streng images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 33.4 kB

  • Original 154.9 kB
  • After minification 154.8 kB
  • After compression 121.5 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 33.4 kB or 22% of the original size.

CSS Optimization

-4%

Potential reduce by 4.0 kB

  • Original 110.7 kB
  • After minification 110.7 kB
  • After compression 106.7 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. Streng.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 54 (84%)

Requests Now

64

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Streng. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.streng.nl

www.streng.nl

1066 ms

js

js

234 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

226 ms

style.min.css

style.min.css

313 ms

style-wpzoom-social-icons.css

style-wpzoom-social-icons.css

393 ms

cleantalk-public.min.css

cleantalk-public.min.css

401 ms

theme-utils.css

theme-utils.css

395 ms

css

css

122 ms

css

css

233 ms

style.css

style.css

395 ms

media-queries.css

media-queries.css

396 ms

dashicons.min.css

dashicons.min.css

522 ms

style.css

style.css

514 ms

wpzoom-socicon.css

wpzoom-socicon.css

494 ms

genericons.css

genericons.css

508 ms

academicons.min.css

academicons.min.css

512 ms

font-awesome-3.min.css

font-awesome-3.min.css

521 ms

wpzoom-social-icons-styles.css

wpzoom-social-icons-styles.css

606 ms

frontend-gtag.min.js

frontend-gtag.min.js

632 ms

jquery.min.js

jquery.min.js

722 ms

jquery-migrate.min.js

jquery-migrate.min.js

620 ms

apbct-public-bundle.min.js

apbct-public-bundle.min.js

636 ms

init.js

init.js

631 ms

formreset.min.css

formreset.min.css

689 ms

formsmain.min.css

formsmain.min.css

789 ms

readyclass.min.css

readyclass.min.css

717 ms

browsers.min.css

browsers.min.css

716 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

708 ms

wp-polyfill.min.js

wp-polyfill.min.js

791 ms

dom-ready.min.js

dom-ready.min.js

800 ms

hooks.min.js

hooks.min.js

805 ms

i18n.min.js

i18n.min.js

818 ms

a11y.min.js

a11y.min.js

811 ms

jquery.json.min.js

jquery.json.min.js

884 ms

gravityforms.min.js

gravityforms.min.js

897 ms

reviewwidget.js

reviewwidget.js

730 ms

conversion.js

conversion.js

290 ms

icons.css

icons.css

871 ms

shortcodes.css

shortcodes.css

884 ms

comment-reply.min.js

comment-reply.min.js

886 ms

dropdown.js

dropdown.js

884 ms

plusone.js

plusone.js

287 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

953 ms

functions.js

functions.js

807 ms

analytics.js

analytics.js

38 ms

collect

collect

35 ms

social-icons-widget-frontend.js

social-icons-widget-frontend.js

692 ms

collect

collect

88 ms

style.css

style.css

659 ms

ga-audiences

ga-audiences

84 ms

button-belmeterug.jpg

button-belmeterug.jpg

855 ms

Streng-Dijkerman-Partners-logo.jpg

Streng-Dijkerman-Partners-logo.jpg

422 ms

email_small.png

email_small.png

196 ms

feed_small.png

feed_small.png

196 ms

streng-website-260-470x312.jpg

streng-website-260-470x312.jpg

422 ms

symbol-defs.svg

symbol-defs.svg

165 ms

ae587cfeea5ac21a8f1c1ea51027fef0.js

ae587cfeea5ac21a8f1c1ea51027fef0.js

849 ms

162 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

73 ms

forkawesome-webfont.woff

forkawesome-webfont.woff

235 ms

210 ms

reviews.jsonp

reviews.jsonp

157 ms

logo-springest-review-widget.png

logo-springest-review-widget.png

220 ms

review-widget-background.png

review-widget-background.png

283 ms

button-gradient.png

button-gradient.png

312 ms

rating-bubble.png

rating-bubble.png

205 ms

bounce

bounce

20 ms

Accessibility Review

streng.nl accessibility score

80

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

streng.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

streng.nl SEO score

89

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 Streng.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 Streng.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

streng.nl

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