Tools & Wizards About Us
teelen.nl screenshot

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

teelen.nl

Teelen: gedreven specialist in digitaal toetsen

Page Load Speed

6.5 sec in total

First Response

191 ms

Resources Loaded

5.8 sec

Page Rendered

479 ms

teelen.nl screenshot

About Website

Visit teelen.nl now to see the best up-to-date Teelen content and also check out these interesting facts you probably never knew about teelen.nl

We leveren advies, ontwikkelkracht, training, certificering en toetssoftware aan grote onderwijsinstellingen en het bedrijfsleven.

Visit teelen.nl

Key Findings

We analyzed Teelen.nl page load time and found that the first response time was 191 ms and then it took 6.3 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

teelen.nl performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value11.6 s

4/100

10%

TBT (Total Blocking Time)

Value6,390 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.488

17/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

Network Requests Diagram

teelen.nl

191 ms

www.teelen.nl

479 ms

styles.css

182 ms

style.css

272 ms

style.min.css

274 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 97% of them (63 requests) were addressed to the original Teelen.nl, 2% (1 request) were made to Use.typekit.net and 2% (1 request) were made to P.typekit.net. The less responsive or slowest element that took the longest time to load (799 ms) belongs to the original domain Teelen.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 15.2 kB (6%)

Content Size

262.0 kB

After Optimization

246.8 kB

  • Images
  • JavaScript
  • CSS

In fact, the total size of Teelen.nl main page is 262.0 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. 40% of websites need less resources to load. Images take 225.9 kB which makes up the majority of the site volume.

HTML Optimization

-0%

Potential reduce by -8 B

  • Original 0 B

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 web page is already compressed.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 225.9 kB
  • After minification 225.9 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. Teelen images are well optimized though.

JavaScript Optimization

-29%

Potential reduce by 7.8 kB

  • Original 26.9 kB
  • After minification 23.2 kB
  • After compression 19.1 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 7.8 kB or 29% of the original size.

CSS Optimization

-81%

Potential reduce by 7.4 kB

  • Original 9.2 kB
  • After minification 6.4 kB
  • After compression 1.8 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. Teelen.nl needs all CSS files to be minified and compressed as it can save up to 7.4 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (69%)

Requests Now

62

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Teelen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 35 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

teelen.nl

teelen.nl

191 ms

www.teelen.nl

www.teelen.nl

479 ms

styles.css

styles.css

182 ms

style.css

style.css

272 ms

style.min.css

style.min.css

274 ms

flatsome.css

flatsome.css

283 ms

flatsome-shop.css

flatsome-shop.css

277 ms

style.css

style.css

280 ms

jquery.min.js

jquery.min.js

371 ms

jquery-migrate.min.js

jquery-migrate.min.js

362 ms

custom.js

custom.js

363 ms

jquery.blockUI.min.js

jquery.blockUI.min.js

369 ms

add-to-cart.min.js

add-to-cart.min.js

368 ms

js.cookie.min.js

js.cookie.min.js

382 ms

custom.js

custom.js

454 ms

lcs0kun.css

lcs0kun.css

93 ms

wc-blocks.css

wc-blocks.css

378 ms

mailpoet-public.c7ad0042.css

mailpoet-public.c7ad0042.css

389 ms

index.js

index.js

389 ms

index.js

index.js

388 ms

woocommerce.min.js

woocommerce.min.js

388 ms

sourcebuster.min.js

sourcebuster.min.js

504 ms

order-attribution.min.js

order-attribution.min.js

504 ms

tracker.js

tracker.js

505 ms

flatsome-instant-page.js

flatsome-instant-page.js

505 ms

flatsome-live-search.js

flatsome-live-search.js

504 ms

app.min.js

app.min.js

505 ms

hoverIntent.min.js

hoverIntent.min.js

550 ms

flatsome.js

flatsome.js

641 ms

flatsome-lazy-load.js

flatsome-lazy-load.js

563 ms

woocommerce.js

woocommerce.js

563 ms

cart-fragments.min.js

cart-fragments.min.js

563 ms

public.js

public.js

567 ms

packery.pkgd.min.js

packery.pkgd.min.js

643 ms

zxcvbn-async.min.js

zxcvbn-async.min.js

654 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

655 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

657 ms

wp-polyfill.min.js

wp-polyfill.min.js

662 ms

hooks.min.js

hooks.min.js

732 ms

i18n.min.js

i18n.min.js

646 ms

password-strength-meter.min.js

password-strength-meter.min.js

569 ms

password-strength-meter.min.js

password-strength-meter.min.js

566 ms

hcaptcha.js

hcaptcha.js

564 ms

hcaptcha-cf7.min.js

hcaptcha-cf7.min.js

554 ms

lazyload.min.js

lazyload.min.js

625 ms

p.css

p.css

25 ms

classic_white.svg

classic_white.svg

457 ms

home-giraffen.jpg

home-giraffen.jpg

412 ms

home-eekhoorn.jpg

home-eekhoorn.jpg

505 ms

home-vogels.jpg

home-vogels.jpg

505 ms

foto-certificering.jpg

foto-certificering.jpg

695 ms

Slider-uilen.jpg

Slider-uilen.jpg

756 ms

Slider-vossen.jpg

Slider-vossen.jpg

799 ms

uil-20pct-goud.png

uil-20pct-goud.png

505 ms

fl-icons.ttf

fl-icons.ttf

525 ms

logo-teelen.svg

logo-teelen.svg

234 ms

Vellesan-logo-algemeen-CMYK.jpg-p5lmfp7bef7uvtfd02uj2mznccoyamtpd9hq2d4438-300x171.jpeg

Vellesan-logo-algemeen-CMYK.jpg-p5lmfp7bef7uvtfd02uj2mznccoyamtpd9hq2d4438-300x171.jpeg

301 ms

TEELEN-Logo-RGB-contra.svg

TEELEN-Logo-RGB-contra.svg

345 ms

nrtro_logo-300x300.png

nrtro_logo-300x300.png

406 ms

keurmerk-crkbo-300x300.png

keurmerk-crkbo-300x300.png

404 ms

FSQS-NL-Registered.png

FSQS-NL-Registered.png

455 ms

QSCert-9001-243x300.png

QSCert-9001-243x300.png

449 ms

QSCert-27001-243x300.png

QSCert-27001-243x300.png

527 ms

TESTVISION-Logo-RGB-contra.svg

TESTVISION-Logo-RGB-contra.svg

522 ms

zxcvbn.min.js

zxcvbn.min.js

213 ms

Accessibility Review

teelen.nl accessibility score

80

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

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Links do not have a discernible name

Best Practices

teelen.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

SEO Factors

teelen.nl SEO score

91

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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Teelen.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Teelen.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

teelen.nl

Open Graph description is not detected on the main page of Teelen. 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: