Tools & Wizards About Us
concept7.nl screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

concept7.nl

Concept7 | Het strategisch digitaal bureau

Page Load Speed

2.9 sec in total

First Response

199 ms

Resources Loaded

2.5 sec

Page Rendered

206 ms

concept7.nl screenshot

About Website

Welcome to concept7.nl homepage info - get ready to check Concept7 best content for Netherlands right away, or after learning these important things about concept7.nl

Op zoek naar een ervaren bureau voor je digitale product? Wij onderzoeken, ontwerpen, testen én bouwen samen met jou gebruiksvriendelijke websites en apps.

Visit concept7.nl

Key Findings

We analyzed Concept7.nl page load time and found that the first response time was 199 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

concept7.nl performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value1,280 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.389

26/100

15%

TTI (Time to Interactive)

Value15.4 s

7/100

10%

Network Requests Diagram

concept7.nl

199 ms

concept7.nl

465 ms

gtm.js

60 ms

app-BcmfuCA0.css

241 ms

9000029297_en.png

1796 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 90% of them (63 requests) were addressed to the original Concept7.nl, 4% (3 requests) were made to Googletagmanager.com and 1% (1 request) were made to Certipedia.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source Certipedia.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 83.0 kB (25%)

Content Size

331.1 kB

After Optimization

248.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Concept7.nl main page is 331.1 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. 45% of websites need less resources to load. Images take 218.2 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 62.2 kB

  • Original 75.3 kB
  • After minification 49.8 kB
  • After compression 13.2 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 25.6 kB, which is 34% 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 62.2 kB or 82% of the original size.

Image Optimization

-7%

Potential reduce by 15.8 kB

  • Original 218.2 kB
  • After minification 202.5 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. Concept7 images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 11 B

  • Original 7.4 kB
  • After minification 7.4 kB
  • After compression 7.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-17%

Potential reduce by 5.0 kB

  • Original 30.1 kB
  • After minification 30.1 kB
  • After compression 25.1 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. Concept7.nl needs all CSS files to be minified and compressed as it can save up to 5.0 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (8%)

Requests Now

63

After Optimization

58

  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Concept7. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

concept7.nl

concept7.nl

199 ms

concept7.nl

concept7.nl

465 ms

gtm.js

gtm.js

60 ms

app-BcmfuCA0.css

app-BcmfuCA0.css

241 ms

9000029297_en.png

9000029297_en.png

1796 ms

logo-DfJdiKky.svg

logo-DfJdiKky.svg

305 ms

doubleArrow-D9sbSBRr.svg

doubleArrow-D9sbSBRr.svg

427 ms

arrow-CF0zIIDP.svg

arrow-CF0zIIDP.svg

428 ms

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428 ms

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429 ms

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852 ms

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864 ms

js

js

61 ms

destination

destination

199 ms

hotjar-3013.js

hotjar-3013.js

193 ms

universal.js

universal.js

197 ms

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577 ms

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130 ms

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GTWalsheimProLight-sitHz5A8.ttf

961 ms

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1242 ms

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698 ms

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688 ms

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880 ms

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761 ms

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775 ms

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796 ms

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792 ms

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770 ms

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778 ms

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798 ms

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889 ms

Accessibility Review

concept7.nl accessibility score

95

Accessibility Issues

ARIA

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.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

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.

Best Practices

concept7.nl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

concept7.nl SEO score

100

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

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 Concept7.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 Concept7.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

concept7.nl

Open Graph data is detected on the main page of Concept7. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: