Tools & Wizards About Us
tvc.nl screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

tvc.nl

Tijdschrift voor Coaching - TvC: Visieblad voor Professioneel Begeleiden

Page Load Speed

3.4 sec in total

First Response

280 ms

Resources Loaded

2.7 sec

Page Rendered

454 ms

tvc.nl screenshot

About Website

Click here to check amazing TvC content. Otherwise, check out these important facts you probably never knew about tvc.nl

Het Tijdschrift voor Coaching (TvC) is een vakblad dat inspireert om te leren. Het blad brengt het vak van coach, de toepassingen van coachen en de diversiteit van de beroepspraktijk in beeld. Het TvC...

Visit tvc.nl

Key Findings

We analyzed Tvc.nl page load time and found that the first response time was 280 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

tvc.nl performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

56/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value540 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value1.723

0/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

tvc.nl

280 ms

www.tvc.nl

473 ms

styles.css

185 ms

styles.css

427 ms

head.min.js

355 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 87% of them (40 requests) were addressed to the original Tvc.nl, 4% (2 requests) were made to Ssl.google-analytics.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Tvc.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 73.9 kB (5%)

Content Size

1.6 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tvc.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. 65% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 39.4 kB

  • Original 50.8 kB
  • After minification 43.4 kB
  • After compression 11.3 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. This page needs HTML code to be minified as it can gain 7.3 kB, which is 14% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 39.4 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 4.0 kB

  • Original 1.2 MB
  • After minification 1.2 MB

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. TvC images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 30.1 kB

  • Original 262.0 kB
  • After minification 262.0 kB
  • After compression 231.9 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 30.1 kB or 11% of the original size.

CSS Optimization

-0%

Potential reduce by 345 B

  • Original 131.3 kB
  • After minification 131.3 kB
  • After compression 131.0 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. Tvc.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 13 (33%)

Requests Now

39

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TvC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tvc.nl

tvc.nl

280 ms

www.tvc.nl

www.tvc.nl

473 ms

styles.css

styles.css

185 ms

styles.css

styles.css

427 ms

head.min.js

head.min.js

355 ms

css2

css2

34 ms

module_10.css

module_10.css

269 ms

module_11.css

module_11.css

264 ms

module_61.css

module_61.css

274 ms

module_76.css

module_76.css

270 ms

module_18.css

module_18.css

350 ms

module_8.css

module_8.css

354 ms

module_7.css

module_7.css

358 ms

main.min.js

main.min.js

1022 ms

slider-grey-bg.svg

slider-grey-bg.svg

96 ms

3d8a087dc2fdcda107bc9bd55cc9f804a6b6ead0-cover-tvc-04-2023.jpg

3d8a087dc2fdcda107bc9bd55cc9f804a6b6ead0-cover-tvc-04-2023.jpg

449 ms

e9394ddad43ce78326ed858002fe4629497464ee-cover-tvc-01-2024.jpg

e9394ddad43ce78326ed858002fe4629497464ee-cover-tvc-01-2024.jpg

259 ms

8dd9643043390519fbc96929f72d747b07643ab5-tvc-2023-3.jpg

8dd9643043390519fbc96929f72d747b07643ab5-tvc-2023-3.jpg

431 ms

5dfd01b301ca44d1feed094f90b9a8201cfe923d-tvc-2024-01-99.jpg

5dfd01b301ca44d1feed094f90b9a8201cfe923d-tvc-2024-01-99.jpg

90 ms

976f2176e3f1ca15ca60a25530f03df82c52dc65-tvc-2023-04-99.jpg

976f2176e3f1ca15ca60a25530f03df82c52dc65-tvc-2023-04-99.jpg

175 ms

95be3a172d237f460aa820b280e045672fa5cdf7-tvc-2023-03-99.jpg

95be3a172d237f460aa820b280e045672fa5cdf7-tvc-2023-03-99.jpg

184 ms

7840e1379d6aca592a316596c35a39c5e4c2c333-tvc-2023-02-99.jpg

7840e1379d6aca592a316596c35a39c5e4c2c333-tvc-2023-02-99.jpg

260 ms

dd1653dfe931c49a48d720afd33fde2318d08d70-column-600x450.jpg

dd1653dfe931c49a48d720afd33fde2318d08d70-column-600x450.jpg

358 ms

fbac52b7fba76759880d414dd0637a706d4188bc-istock-177004757.jpg

fbac52b7fba76759880d414dd0637a706d4188bc-istock-177004757.jpg

347 ms

297719c5219383890290fa932581b82710344a04-briefwisseling-600x400.jpg

297719c5219383890290fa932581b82710344a04-briefwisseling-600x400.jpg

346 ms

Logo%20Coachboeken.jpg

Logo%20Coachboeken.jpg

437 ms

boek-mock-sari-491.jpg

boek-mock-sari-491.jpg

441 ms

boek-mock-cristelvdven-490.jpg

boek-mock-cristelvdven-490.jpg

448 ms

bookmock-487.jpg

bookmock-487.jpg

517 ms

hartgerwassink-mock-dubbeluitgave-kopiaeren-489.jpg

hartgerwassink-mock-dubbeluitgave-kopiaeren-489.jpg

522 ms

benno-diederiks-staand-488.jpg

benno-diederiks-staand-488.jpg

710 ms

boek-mock-steijger-486.jpg

boek-mock-steijger-486.jpg

711 ms

boek-mock-bolt-492.jpg

boek-mock-bolt-492.jpg

711 ms

ronvdeth-mock-474.jpg

ronvdeth-mock-474.jpg

726 ms

58a37634ed1cb26511310d4a5cc9e8b92015f96b-1.jpg

58a37634ed1cb26511310d4a5cc9e8b92015f96b-1.jpg

726 ms

0ae0ae31707620dfbf150d7268cf4d71cefbf723-2.jpg

0ae0ae31707620dfbf150d7268cf4d71cefbf723-2.jpg

725 ms

logo.png

logo.png

725 ms

font

font

678 ms

fa-light-300.woff

fa-light-300.woff

839 ms

fa-regular-400.woff

fa-regular-400.woff

722 ms

fa-solid-900.woff

fa-solid-900.woff

924 ms

fa-brands-400.woff

fa-brands-400.woff

792 ms

api.js

api.js

189 ms

ga.js

ga.js

62 ms

recaptcha__ru.js

recaptcha__ru.js

47 ms

__utm.gif

__utm.gif

29 ms

Accessibility Review

tvc.nl accessibility score

77

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

tvc.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

tvc.nl SEO score

90

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 Tvc.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 Tvc.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

tvc.nl

Open Graph description is not detected on the main page of TvC. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: