Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

concept7.nl

Het strategisch digitaal bureau | Concept7

Page Load Speed

2.1 sec in total

First Response

355 ms

Resources Loaded

1.5 sec

Page Rendered

232 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 355 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

concept7.nl performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

62/100

25%

SI (Speed Index)

Value3.7 s

86/100

10%

TBT (Total Blocking Time)

Value900 ms

31/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

concept7.nl

355 ms

www.concept7.nl

485 ms

hotjar-3013.js

132 ms

12585008.js

92 ms

css

26 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 50% of them (15 requests) were addressed to the original Concept7.nl, 7% (2 requests) were made to Fonts.googleapis.com and 7% (2 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (485 ms) belongs to the original domain Concept7.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 481.7 kB (52%)

Content Size

919.0 kB

After Optimization

437.3 kB

In fact, the total size of Concept7.nl main page is 919.0 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. 35% of websites need less resources to load. Javascripts take 447.3 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 4.6 kB

  • Original 7.1 kB
  • After minification 6.5 kB
  • After compression 2.4 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 4.6 kB or 66% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 269.2 kB
  • After minification 269.2 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

-68%

Potential reduce by 303.7 kB

  • Original 447.3 kB
  • After minification 445.6 kB
  • After compression 143.7 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 303.7 kB or 68% of the original size.

CSS Optimization

-89%

Potential reduce by 173.4 kB

  • Original 195.5 kB
  • After minification 154.0 kB
  • After compression 22.1 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 173.4 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (46%)

Requests Now

28

After Optimization

15

The browser has sent 28 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 14 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

concept7.nl accessibility score

98

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.

Best Practices

concept7.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

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

Open Graph description is not detected on the main page of Concept7. 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: