Access atal.nl. ATAL

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value580 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.121

84/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

atal.nl

359 ms

www.atal.nl

967 ms

reset.css

185 ms

colorbox.css

186 ms

jquery-ui.css

458 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 93% of them (88 requests) were addressed to the original Atal.nl, 4% (4 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Atal.nl.

Content Size

3.9 MB

After Optimization

3.5 MB

In fact, the total size of Atal.nl main page is 3.9 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 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 47.1 kB

Original 56.1 kB
After minification 45.0 kB
After compression 9.0 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. This page needs HTML code to be minified as it can gain 11.1 kB, which is 20% 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 47.1 kB or 84% of the original size.

Image Optimization

-2%

Potential reduce by 71.8 kB

Original 3.4 MB
After minification 3.4 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. ATAL images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 205.9 kB

Original 321.3 kB
After minification 319.4 kB
After compression 115.4 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 205.9 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 71.3 kB

Original 84.9 kB
After minification 63.1 kB
After compression 13.6 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. Atal.nl needs all CSS files to be minified and compressed as it can save up to 71.3 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ATAL. 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.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

ARIA IDs are not unique

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.

High

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

NL
Language Claimed

NL
Encoding

ISO-8859-1

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

atal.nl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

ATAL

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

atal.nl

www.atal.nl

reset.css

colorbox.css

jquery-ui.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

atal.nl

www.atal.nl

reset.css

colorbox.css

jquery-ui.css

style.css

juni2013-home.css

jquery.qtip.min.css

minified.js

juni2013-home.js

jquery.qtip.min.js

jquery.search.js

css

bkg_body.gif

logo.png

lang-dutch.gif

lang-english.gif

appl-kdv.jpg

at-vl-01rh.png

co2-transmitters.png

appl-energie.jpg

elitepro.png

appl-haccp.jpg

39240.png

appl-GLP-GMP.jpg

ATM.png

appl-legionella.jpg

appl-transport.jpg

atv-01.png

t-print.png

appl-datacenter.jpg

epd.png

appl-wireless.jpg

draadloos.png

appl-thermografie.jpg

e60.png

co2-meters.jpg

dataloggers.jpg

temperatuur-sensoren.jpg

monitoring-systemen.jpg

temp-sensoren.jpg

warmtebeeld-cameras.jpg

sensoren.jpg