Tools & Wizards About Us
knalblauw.nl screenshot

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

knalblauw.nl

Knalblauw ‣ Technische & Visuele Communicatie voor Geo & Ruimtevaart

Page Load Speed

3.4 sec in total

First Response

355 ms

Resources Loaded

2.2 sec

Page Rendered

832 ms

knalblauw.nl screenshot

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...

Visit knalblauw.nl

Key Findings

We analyzed Knalblauw.nl page load time and found that the first response time was 355 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

knalblauw.nl performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

knalblauw.nl

355 ms

knalblauw.nl

365 ms

knalblauw.css

88 ms

Sabine-de-Milliano.jpg

600 ms

logo-cyclomedia.png

425 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that all of those requests were addressed to Knalblauw.nl and no external sources were called. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Knalblauw.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 467.7 kB (7%)

Content Size

6.3 MB

After Optimization

5.8 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Knalblauw.nl main page is 6.3 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. 45% of websites need less resources to load. Images take 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 6.4 kB

  • Original 9.3 kB
  • After minification 8.0 kB
  • After compression 3.0 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 1.3 kB, which is 14% 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 6.4 kB or 68% of the original size.

Image Optimization

-7%

Potential reduce by 461.0 kB

  • Original 6.3 MB
  • After minification 5.8 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. Knalblauw images are well optimized though.

CSS Optimization

-11%

Potential reduce by 308 B

  • Original 2.7 kB
  • After minification 2.7 kB
  • After compression 2.4 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 308 B or 11% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

23

After Optimization

23

  • Images
  • CSS

The browser has sent 23 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.

Network Requests Diagram

knalblauw.nl

knalblauw.nl

355 ms

knalblauw.nl

knalblauw.nl

365 ms

knalblauw.css

knalblauw.css

88 ms

Sabine-de-Milliano.jpg

Sabine-de-Milliano.jpg

600 ms

logo-cyclomedia.png

logo-cyclomedia.png

425 ms

logo-geodelta.png

logo-geodelta.png

427 ms

logo-st.png

logo-st.png

427 ms

logo-geonovation.png

logo-geonovation.png

553 ms

logo-tudelft.png

logo-tudelft.png

427 ms

logo-esa.png

logo-esa.png

595 ms

logo-geofort.png

logo-geofort.png

512 ms

logo-ruimteschepper.png

logo-ruimteschepper.png

596 ms

logo-geomares.png

logo-geomares.png

597 ms

logo-orbitaleye.png

logo-orbitaleye.png

682 ms

logo-fugro.png

logo-fugro.png

638 ms

logo-sbic.png

logo-sbic.png

681 ms

knalblauw-2x.png

knalblauw-2x.png

596 ms

linkedin.svg

linkedin.svg

596 ms

knalblauw-illustration-simplified.svg

knalblauw-illustration-simplified.svg

766 ms

illustrations-drawings.jpg

illustrations-drawings.jpg

1064 ms

noun-infographic-5840061.svg

noun-infographic-5840061.svg

679 ms

noun-devices-3322727.svg

noun-devices-3322727.svg

681 ms

noun_education_3247419.svg

noun_education_3247419.svg

682 ms

noun-paint-1539578.svg

noun-paint-1539578.svg

683 ms

sabine-de-milliano-on-the-road-in-europe-knalblauw.jpg

sabine-de-milliano-on-the-road-in-europe-knalblauw.jpg

1357 ms

arimamadurai-extrabold-webfont.woff

arimamadurai-extrabold-webfont.woff

597 ms

arimamadurai-extralight-webfont.woff

arimamadurai-extralight-webfont.woff

597 ms

Accessibility Review

knalblauw.nl accessibility score

80

Accessibility Issues

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

Image elements do not have [alt] attributes

Best Practices

knalblauw.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

SEO Factors

knalblauw.nl SEO score

92

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

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 Knalblauw.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 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: