Tools & Wizards About Us
sneltheorie.nl screenshot

Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

sneltheorie.nl

Auto theoriecursus & theorie-examen op 1 dag in Amsterdam - schrijf je in

Page Load Speed

4.7 sec in total

First Response

296 ms

Resources Loaded

4 sec

Page Rendered

398 ms

sneltheorie.nl screenshot

About Website

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

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Key Findings

We analyzed Sneltheorie.nl page load time and found that the first response time was 296 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

sneltheorie.nl performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.0 s

1/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value10.8 s

7/100

10%

TBT (Total Blocking Time)

Value2,800 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.254

49/100

15%

TTI (Time to Interactive)

Value20.2 s

2/100

10%

Network Requests Diagram

sneltheorie.nl

296 ms

www.sneltheorie.nl

581 ms

webfontloader.min.js

103 ms

style.min.css

198 ms

classic-themes.min.css

293 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 64% of them (47 requests) were addressed to the original Sneltheorie.nl, 16% (12 requests) were made to Fonts.gstatic.com and 7% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Sneltheorie.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 104.0 kB (7%)

Content Size

1.6 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sneltheorie.nl main page is 1.6 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. Images take 839.8 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 88.2 kB

  • Original 104.0 kB
  • After minification 102.0 kB
  • After compression 15.8 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 88.2 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 10.4 kB

  • Original 839.8 kB
  • After minification 829.5 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. Snel Theorie images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 3.0 kB

  • Original 349.3 kB
  • After minification 349.3 kB
  • After compression 346.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 2.4 kB

  • Original 276.8 kB
  • After minification 276.3 kB
  • After compression 274.4 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. Sneltheorie.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 42 (76%)

Requests Now

55

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Snel Theorie. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sneltheorie.nl

sneltheorie.nl

296 ms

www.sneltheorie.nl

www.sneltheorie.nl

581 ms

webfontloader.min.js

webfontloader.min.js

103 ms

style.min.css

style.min.css

198 ms

classic-themes.min.css

classic-themes.min.css

293 ms

formcraft-common.css

formcraft-common.css

291 ms

form.css

form.css

287 ms

Defaults.css

Defaults.css

285 ms

js_composer.min.css

js_composer.min.css

496 ms

main.min.css

main.min.css

412 ms

icomoon-the7-font.min.css

icomoon-the7-font.min.css

380 ms

all.min.css

all.min.css

382 ms

back-compat.min.css

back-compat.min.css

385 ms

custom.css

custom.css

484 ms

media.css

media.css

474 ms

mega-menu.css

mega-menu.css

477 ms

style.css

style.css

477 ms

style.min.css

style.min.css

510 ms

advanced-buttons.min.css

advanced-buttons.min.css

568 ms

headings.min.css

headings.min.css

569 ms

animate.min.css

animate.min.css

571 ms

info-box.min.css

info-box.min.css

578 ms

jquery.min.js

jquery.min.js

594 ms

jquery-migrate.min.js

jquery-migrate.min.js

608 ms

above-the-fold.min.js

above-the-fold.min.js

659 ms

ultimate-params.min.js

ultimate-params.min.js

671 ms

custom.min.js

custom.min.js

672 ms

jquery-appear.min.js

jquery-appear.min.js

673 ms

headings.min.js

headings.min.js

682 ms

background-style.min.css

background-style.min.css

720 ms

js_composer_tta.min.css

js_composer_tta.min.css

754 ms

main.min.js

main.min.js

1170 ms

info-box.min.js

info-box.min.js

778 ms

js_composer_front.min.js

js_composer_front.min.js

779 ms

ultimate_bg.min.js

ultimate_bg.min.js

780 ms

vc-accordion.min.js

vc-accordion.min.js

783 ms

vc-tta-autoplay.min.js

vc-tta-autoplay.min.js

847 ms

css

css

41 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

27 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

33 ms

KFOlCnqEu92Fr1MmSU5fBBc-.woff

KFOlCnqEu92Fr1MmSU5fBBc-.woff

38 ms

KFOlCnqEu92Fr1MmWUlfBBc-.woff

KFOlCnqEu92Fr1MmWUlfBBc-.woff

46 ms

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyWyosBO5Xo.woff

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyWyosBO5Xo.woff

40 ms

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyVspcBO5Xo.woff

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyVspcBO5Xo.woff

40 ms

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyVVpcBO5Xo.woff

ieVo2ZhZI2eCN5jzbjEETS9weq8-_d6T_POl0fRJeyVVpcBO5Xo.woff

41 ms

4iCs6KVjbNBYlgoKfw7w.woff

4iCs6KVjbNBYlgoKfw7w.woff

43 ms

4iCv6KVjbNBYlgoCjC3jsGyL.woff

4iCv6KVjbNBYlgoCjC3jsGyL.woff

44 ms

4iCv6KVjbNBYlgoCxCvjsGyL.woff

4iCv6KVjbNBYlgoCxCvjsGyL.woff

43 ms

gplaypattern.jpg

gplaypattern.jpg

190 ms

analytics.js

analytics.js

46 ms

zUxX8OxaBqw

zUxX8OxaBqw

171 ms

snel-theorie-logo.png

snel-theorie-logo.png

162 ms

prijs-label.png

prijs-label.png

173 ms

unnamed.png

unnamed.png

193 ms

sneltheorie-homepage-image.jpg

sneltheorie-homepage-image.jpg

556 ms

fa-solid-900.woff

fa-solid-900.woff

588 ms

fa-regular-400.woff

fa-regular-400.woff

461 ms

Defaults.woff

Defaults.woff

537 ms

icomoon-the7-font.ttf

icomoon-the7-font.ttf

461 ms

collect

collect

28 ms

js

js

54 ms

www-player.css

www-player.css

8 ms

www-embed-player.js

www-embed-player.js

24 ms

base.js

base.js

50 ms

ad_status.js

ad_status.js

247 ms

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

378 ms

embed.js

embed.js

144 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

52 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

53 ms

id

id

190 ms

Create

Create

185 ms

sneltheorie-header.jpg

sneltheorie-header.jpg

645 ms

GenerateIT

GenerateIT

15 ms

Accessibility Review

sneltheorie.nl accessibility score

85

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

[id] attributes on active, focusable elements are not unique

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

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

sneltheorie.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

sneltheorie.nl SEO score

100

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

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 Sneltheorie.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 Sneltheorie.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

sneltheorie.nl

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