Access herseninstituut.knaw.nl. Home - Netherlands Institute for Neuroscience

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value14.4 s

0/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value16,490 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value22.9 s

1/100

10%

herseninstituut.knaw.nl

571 ms

nin.nl

908 ms

js

99 ms

wp-emoji-release.min.js

316 ms

style.min.css

342 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Herseninstituut.knaw.nl, 68% (50 requests) were made to Nin.nl and 4% (3 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Nin.nl.

Content Size

5.6 MB

After Optimization

5.5 MB

In fact, the total size of Herseninstituut.knaw.nl main page is 5.6 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 5.4 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 51.7 kB

Original 68.3 kB
After minification 68.3 kB
After compression 16.6 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 51.7 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 47.7 kB

Original 5.4 MB
After minification 5.3 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. Herseninstituut Knaw images are well optimized though.

JavaScript Optimization

-44%

Potential reduce by 32.2 kB

Original 72.6 kB
After minification 72.6 kB
After compression 40.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 32.2 kB or 44% of the original size.

CSS Optimization

-0%

Potential reduce by 336 B

Original 74.0 kB
After minification 74.0 kB
After compression 73.6 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. Herseninstituut.knaw.nl has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Herseninstituut Knaw. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

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

High

Links do not have descriptive text

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

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

EN
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Herseninstituut.knaw.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Herseninstituut.knaw.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

herseninstituut.knaw.nl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Home - Netherlands Institute for Neuroscience - Master the Mind

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)

Network Requests Diagram

herseninstituut.knaw.nl

nin.nl

js

wp-emoji-release.min.js

style.min.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

herseninstituut.knaw.nl

nin.nl

js

wp-emoji-release.min.js

style.min.css

page-list.css

style.css

admin-bar-style.css

cms-navigation-base.css

cms-navigation.css

default.min.css

main-504c4daf1b.css

frontend-gtag.min.js

jquery-1.12.1.min.js

email-download-link.js

script.js

blz5ffz.js

ReadSpeaker.js

xdomain-data.js

email-decode.min.js

jquery-a13625f34f.textresizer.min.js

main-3e5b10e374.js

jquery.json.min.js

gravityforms.min.js

placeholders.jquery.min.js

api.js

v652eace1692a40cfa3763df669d7439c1639079717194

js

analytics.js

collect

nin.nl

nin.nl

fbevents.js

gradient-bg.png

nin-logo-en.png

beeldmerk.svg

nl.png

en.png

fotomariekedelorijn_2019_1968ds-140x140.jpg

fotomariekedelorijn_2019_1116ds-140x140.jpg

fotomariekedelorijn_2019_1821ds-140x140.jpg

HS_brein-002-e1512738679546-600x300.jpg

Hersenbank_coupes-600x300.jpg