Access collectiegelderland.nl. Ontdek een schat aan Gelders erfgoed

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

5/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value560 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

www.collectiegelderland.nl

592 ms

gtm.js

51 ms

container_GccmSHSg.js

469 ms

main~149424156.js

366 ms

screen~157157442.css

276 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 50% of them (4 requests) were addressed to the original Collectiegelderland.nl, 13% (1 request) were made to Googletagmanager.com and 13% (1 request) were made to Cdn.matomo.cloud. The less responsive or slowest element that took the longest time to load (592 ms) belongs to the original domain Collectiegelderland.nl.

Content Size

11.2 kB

After Optimization

3.0 kB

In fact, the total size of Collectiegelderland.nl main page is 11.2 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. Only 10% of websites need less resources to load. HTML takes 11.2 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 8.3 kB

Original 11.2 kB
After minification 9.4 kB
After compression 2.9 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 1.9 kB, which is 17% 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 8.3 kB or 74% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

Original 5 B

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.

Requests Now

After Optimization

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Collectie Gelderland. According to our analytics all requests are already optimized.

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

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

NL
Language Claimed

NL
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Collectiegelderland.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 Collectiegelderland.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 data is detected on the main page of PARSED_DOMAIN, but there is no image specified in description. It would be a good idea for the website admin to select a nice image that can properly represent the website in Open Graph data, otherwise the first found image will be taken for this purpose and social media information block will look like this: