Access desleutelkluis.nl. De Sleutelkluis Amsterdam: sleutels klaar terwijl u wacht

Report Summary

About Website

Welcome to desleutelkluis.nl homepage info - get ready to check De Sleutelkluis best content right away, or after learning these important things about desleutelkluis.nl

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name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value2,210 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

desleutelkluis.nl

372 ms

www.desleutelkluis.nl

1080 ms

screen.css

246 ms

jquery.fancybox.css

166 ms

jquery-1.9.1.min.js

362 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 33% of them (27 requests) were addressed to the original Desleutelkluis.nl, 35% (28 requests) were made to Maps.google.com and 11% (9 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Desleutelkluis.nl.

Content Size

2.9 MB

After Optimization

2.1 MB

In fact, the total size of Desleutelkluis.nl main page is 2.9 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 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 51.3 kB

Original 61.9 kB
After minification 60.4 kB
After compression 10.6 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 51.3 kB or 83% of the original size.

Image Optimization

-7%

Potential reduce by 145.6 kB

Original 1.9 MB
After minification 1.8 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. De Sleutelkluis images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 565.2 kB

Original 836.1 kB
After minification 783.0 kB
After compression 270.9 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 565.2 kB or 68% of the original size.

CSS Optimization

-81%

Potential reduce by 51.7 kB

Original 64.2 kB
After minification 52.2 kB
After compression 12.5 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. Desleutelkluis.nl needs all CSS files to be minified and compressed as it can save up to 51.7 kB or 81% of the original size.

Requests Now

After Optimization

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Sleutelkluis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

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

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

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 Desleutelkluis.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 Desleutelkluis.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

desleutelkluis.nl

Open Graph description is not detected on the main page of De Sleutelkluis. 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

De Sleutelkluis Amsterdam: sleutels klaar terwijl u wacht

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)