Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

en.nationaalarchief.nl

Ons nationaal geheugen | Nationaal Archief

Page Load Speed

2.8 sec in total

First Response

821 ms

Resources Loaded

1.8 sec

Page Rendered

171 ms

en.nationaalarchief.nl screenshot

About Website

Visit en.nationaalarchief.nl now to see the best up-to-date En Nationaal Archief content for Suriname and also check out these interesting facts you probably never knew about en.nationaalarchief.nl

In het Nationaal Archief vind je antwoorden op vragen over jouw afkomst, onze geschiedenis en onze samenleving. We helpen je aan nieuwe inzichten door je altijd en overal toegang te geven tot ons nati...

Visit en.nationaalarchief.nl

Key Findings

We analyzed En.nationaalarchief.nl page load time and found that the first response time was 821 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

en.nationaalarchief.nl performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

11/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value320 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0.056

98/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

en.nationaalarchief.nl

821 ms

css_eeccd625a687be4eea6d4521a78aac23.css

86 ms

css_4cb3ab9607999b6edfc11eb9330dacc1.css

169 ms

js_9a676c0695580765796eb39d59f39773.js

335 ms

analytics.js

66 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 94% of them (29 requests) were addressed to the original En.nationaalarchief.nl, 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (821 ms) belongs to the original domain En.nationaalarchief.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 198.3 kB (49%)

Content Size

406.8 kB

After Optimization

208.5 kB

In fact, the total size of En.nationaalarchief.nl main page is 406.8 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. 25% of websites need less resources to load. Javascripts take 190.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 16.2 kB

  • Original 21.2 kB
  • After minification 20.1 kB
  • After compression 5.0 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. 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 16.2 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 6.9 kB

  • Original 134.3 kB
  • After minification 127.4 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. En Nationaal Archief images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 127.5 kB

  • Original 190.2 kB
  • After minification 175.9 kB
  • After compression 62.6 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 127.5 kB or 67% of the original size.

CSS Optimization

-78%

Potential reduce by 47.7 kB

  • Original 61.1 kB
  • After minification 59.6 kB
  • After compression 13.4 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. En.nationaalarchief.nl needs all CSS files to be minified and compressed as it can save up to 47.7 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (30%)

Requests Now

30

After Optimization

21

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of En Nationaal Archief. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

en.nationaalarchief.nl accessibility score

98

Accessibility Issues

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

en.nationaalarchief.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

en.nationaalarchief.nl SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise En.nationaalarchief.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed English language. Our system also found out that En.nationaalarchief.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 En Nationaal Archief. 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: