Tools & Wizards About Us

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

lasschool.nl

Lasopleiding | Leren Lassen | Opleidingscentrum Lasschool

Page Load Speed

4.9 sec in total

First Response

581 ms

Resources Loaded

3.8 sec

Page Rendered

529 ms

About Website

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

Lasschool biedt erkende NIL lasopleidingen met een hoog slagingspercentage. Begin direct aan uw lasopleiding om uw lasdiploma te halen!

Visit lasschool.nl

Key Findings

We analyzed Lasschool.nl page load time and found that the first response time was 581 ms and then it took 4.3 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

lasschool.nl performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value560 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.206

60/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

lasschool.nl

581 ms

wpforms-full.min.css

275 ms

cookieblocker.min.css

284 ms

js

62 ms

et-core-unified-1362.min.css

190 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 29% of them (26 requests) were addressed to the original Lasschool.nl, 64% (58 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (719 ms) belongs to the original domain Lasschool.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 385.3 kB (42%)

Content Size

927.9 kB

After Optimization

542.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Lasschool.nl main page is 927.9 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. 75% 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 506.4 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 334.6 kB

  • Original 381.2 kB
  • After minification 376.5 kB
  • After compression 46.6 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 334.6 kB or 88% of the original size.

Image Optimization

-10%

Potential reduce by 50.6 kB

  • Original 506.4 kB
  • After minification 455.7 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. Lasschool images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 83 B

  • Original 40.2 kB
  • After minification 40.2 kB
  • After compression 40.2 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.

Requests Breakdown

Number of requests can be reduced by 13 (43%)

Requests Now

30

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lasschool. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

lasschool.nl accessibility score

69

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

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

Form elements do not have associated labels

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

lasschool.nl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

lasschool.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 Lasschool.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 Lasschool.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

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