Tools & Wizards About Us
lagerheide.nl screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

lagerheide.nl

Veiligheidscursus Van Lagerheide; Kennis Zorgt Voor Een Veilig Gevoel

Page Load Speed

2.2 sec in total

First Response

322 ms

Resources Loaded

1.7 sec

Page Rendered

177 ms

lagerheide.nl screenshot

About Website

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

Een ongeluk zit in een klein hoekje. Lagerheide is voor u de oplossing; wij zorgen er voor dat u altijd kunt vertrouwen op uw eigen kennis en vaardigheden. Volg een cursus Eerste Hulp, Reanimatie, BHV...

Visit lagerheide.nl

Key Findings

We analyzed Lagerheide.nl page load time and found that the first response time was 322 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

lagerheide.nl performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value230 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.3 s

73/100

10%

Network Requests Diagram

lagerheide.nl

322 ms

stylesheet.css

101 ms

slimbox2.css

183 ms

jquery.fancybox-1.3.4.css

192 ms

jquery-1.6.2.min.js

485 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 61% of them (14 requests) were addressed to the original Lagerheide.nl, 9% (2 requests) were made to Google-analytics.com and 9% (2 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (485 ms) belongs to the original domain Lagerheide.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 101.8 kB (37%)

Content Size

278.0 kB

After Optimization

176.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lagerheide.nl main page is 278.0 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. 20% of websites need less resources to load. Javascripts take 129.1 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 16.3 kB

  • Original 22.3 kB
  • After minification 21.8 kB
  • After compression 6.0 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 16.3 kB or 73% of the original size.

Image Optimization

-1%

Potential reduce by 973 B

  • Original 111.7 kB
  • After minification 110.7 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. Lagerheide images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 72.5 kB

  • Original 129.1 kB
  • After minification 128.3 kB
  • After compression 56.6 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 72.5 kB or 56% of the original size.

CSS Optimization

-81%

Potential reduce by 12.0 kB

  • Original 14.9 kB
  • After minification 11.3 kB
  • After compression 2.9 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. Lagerheide.nl needs all CSS files to be minified and compressed as it can save up to 12.0 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (27%)

Requests Now

22

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lagerheide. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

lagerheide.nl

lagerheide.nl

322 ms

stylesheet.css

stylesheet.css

101 ms

slimbox2.css

slimbox2.css

183 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

192 ms

jquery-1.6.2.min.js

jquery-1.6.2.min.js

485 ms

menu.js

menu.js

194 ms

slimbox2.js

slimbox2.js

194 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

195 ms

ga.js

ga.js

17 ms

all.js

all.js

162 ms

header7.jpg

header7.jpg

377 ms

bg.jpg

bg.jpg

97 ms

nibhv.jpg

nibhv.jpg

104 ms

oranjekruis.jpg

oranjekruis.jpg

105 ms

nederlandsereanimatieraad.jpg

nederlandsereanimatieraad.jpg

101 ms

svk.jpg

svk.jpg

95 ms

__utm.gif

__utm.gif

11 ms

92 ms

xd_arbiter.php

xd_arbiter.php

135 ms

xd_arbiter.php

xd_arbiter.php

265 ms

like.php

like.php

109 ms

qeKvIRsJabD.js

qeKvIRsJabD.js

292 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

329 ms

Accessibility Review

lagerheide.nl accessibility score

89

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

Links do not have a discernible name

Best Practices

lagerheide.nl best practices score

75

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

lagerheide.nl SEO score

96

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lagerheide.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 Lagerheide.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

lagerheide.nl

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