Tools & Wizards About Us
acasa.nl screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

acasa.nl

Amsterdam Centre for Ancient Studies and Archaeology - ACASA

Page Load Speed

6.7 sec in total

First Response

1.3 sec

Resources Loaded

4.4 sec

Page Rendered

1 sec

acasa.nl screenshot

About Website

Visit acasa.nl now to see the best up-to-date ACASA content for Netherlands and also check out these interesting facts you probably never knew about acasa.nl

ACASA is een wetenschappelijk expertisecentrum op het gebied van oudheidstudies, klassieke talen en archeologie, waarin de Vrije Universiteit Amsterdam en de Universiteit van Amsterdam hun krachten bu...

Visit acasa.nl

Key Findings

We analyzed Acasa.nl page load time and found that the first response time was 1.3 sec and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

acasa.nl performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value8.5 s

17/100

10%

TBT (Total Blocking Time)

Value440 ms

63/100

30%

CLS (Cumulative Layout Shift)

Value0.195

63/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

Network Requests Diagram

acasa.uva.nl

1298 ms

gtm.js

86 ms

app.min.css

314 ms

uvacookiebar.min.js

432 ms

app.min.js

512 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Acasa.nl, 8% (2 requests) were made to Googletagmanager.com and 8% (2 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Acasa.uva.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 78.4 kB (63%)

Content Size

124.9 kB

After Optimization

46.5 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Acasa.nl main page is 124.9 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. HTML takes 103.9 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 78.3 kB

  • Original 103.9 kB
  • After minification 94.4 kB
  • After compression 25.6 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 78.3 kB or 75% of the original size.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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

-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 Breakdown

Number of requests can be reduced by 14 (56%)

Requests Now

25

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ACASA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

acasa.uva.nl

acasa.uva.nl

1298 ms

gtm.js

gtm.js

86 ms

app.min.css

app.min.css

314 ms

uvacookiebar.min.js

uvacookiebar.min.js

432 ms

app.min.js

app.min.js

512 ms

MathJax.js

MathJax.js

77 ms

analytics.js

analytics.js

27 ms

collect

collect

42 ms

emf5eij.css

emf5eij.css

97 ms

p.css

p.css

39 ms

uva-vu.png

uva-vu.png

107 ms

uva-vu.png

uva-vu.png

111 ms

pont-du-gard-carole-raddato.jpg

pont-du-gard-carole-raddato.jpg

1853 ms

delphi--foto-gert-jan-van-wijngaarden.jpg

delphi--foto-gert-jan-van-wijngaarden.jpg

772 ms

batavia-shipwreck-galleries-foto-vunz.jpg

batavia-shipwreck-galleries-foto-vunz.jpg

871 ms

irene_de_jong_el.jpg

irene_de_jong_el.jpg

532 ms

nwo-logo-rgb.jpg

nwo-logo-rgb.jpg

642 ms

microsoftteams-image-15.png

microsoftteams-image-15.png

1647 ms

hemelrijk-emily-fgw-bron-emily-hemelrijk.jpg

hemelrijk-emily-fgw-bron-emily-hemelrijk.jpg

902 ms

aac-in-bericht-veldhoven-juni-2009-1.jpg

aac-in-bericht-veldhoven-juni-2009-1.jpg

1060 ms

abu_simbel_main_temple.jpg

abu_simbel_main_temple.jpg

1160 ms

uva-fgw-wvwoensel-wvw-2012-09-13_109-h2.jpg

uva-fgw-wvwoensel-wvw-2012-09-13_109-h2.jpg

1264 ms

default-card-image.svg

default-card-image.svg

1001 ms

TeX-AMS_HTML.js

TeX-AMS_HTML.js

38 ms

js

js

114 ms

print.min.css

print.min.css

100 ms

Accessibility Review

acasa.nl accessibility score

100

Accessibility Issues

Best Practices

acasa.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

SEO Factors

acasa.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 Acasa.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 Acasa.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

acasa.nl

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