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Report Summary

About Website

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

Knalblauw maakt technologie toegankelijk en begrijpelijk. Als technisch communicatie specialist combineer ik inhoudelijke kennis met vormgeving, beeld en tekst. Speciaal voor organisaties in de geo- e...

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value1,390 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value7.7 s

45/100

10%

knalblauw.nl

409 ms

knalblauw.css

111 ms

jquery-1.11.0.min.js

408 ms

ga.js

41 ms

photo-rotterdam.jpg

677 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that 85% of them (11 requests) were addressed to the original Knalblauw.nl, 15% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Knalblauw.nl.

Content Size

1.7 MB

After Optimization

1.6 MB

In fact, the total size of Knalblauw.nl main page is 1.7 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. 20% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 7.2 kB

Original 10.8 kB
After minification 9.4 kB
After compression 3.6 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. This page needs HTML code to be minified as it can gain 1.4 kB, which is 13% 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 7.2 kB or 66% of the original size.

Image Optimization

-5%

Potential reduce by 72.5 kB

Original 1.6 MB
After minification 1.5 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. Knalblauw images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 62.8 kB

Original 113.5 kB
After minification 113.5 kB
After compression 50.7 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 62.8 kB or 55% of the original size.

CSS Optimization

-78%

Potential reduce by 6.3 kB

Original 8.2 kB
After minification 7.0 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. Knalblauw.nl needs all CSS files to be minified and compressed as it can save up to 6.3 kB or 78% of the original size.

Requests Now

After Optimization

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Knalblauw. According to our analytics all requests are already optimized.

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

Search Engine Optimization Advices

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

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Knalblauw.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed English language. Our system also found out that Knalblauw.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

knalblauw.nl

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

Knalblauw ‣ Technische & Visuele Communicatie voor Geo & Ruimtevaart

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)