2.4 sec in total
390 ms
1.8 sec
222 ms
Welcome to davinci-leiden.nl homepage info - get ready to check Da Vinci Leiden best content for Netherlands right away, or after learning these important things about davinci-leiden.nl
Visit davinci-leiden.nlWe analyzed Davinci-leiden.nl page load time and found that the first response time was 390 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.
davinci-leiden.nl performance score
name
value
score
weighting
Value2.5 s
68/100
10%
Value4.8 s
31/100
25%
Value3.3 s
91/100
10%
Value280 ms
81/100
30%
Value0.139
79/100
15%
Value5.2 s
74/100
10%
390 ms
415 ms
35 ms
53 ms
84 ms
Our browser made a total of 33 requests to load all elements on the main page. We found that 67% of them (22 requests) were addressed to the original Davinci-leiden.nl, 15% (5 requests) were made to Fonts.gstatic.com and 6% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (506 ms) belongs to the original domain Davinci-leiden.nl.
Page size can be reduced by 23.2 kB (9%)
252.8 kB
229.7 kB
In fact, the total size of Davinci-leiden.nl main page is 252.8 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. 45% of websites need less resources to load. Images take 203.7 kB which makes up the majority of the site volume.
Potential reduce by 9.7 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 9.7 kB or 70% of the original size.
Potential reduce by 13.0 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. Da Vinci Leiden images are well optimized though.
Potential reduce by 414 B
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.
Potential reduce by 73 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. Davinci-leiden.nl has all CSS files already compressed.
Number of requests can be reduced by 11 (42%)
26
15
The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Da Vinci Leiden. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
davinci-leiden.nl
390 ms
davinci-leiden.nl
415 ms
css
35 ms
css
53 ms
bootstrap.min.css
84 ms
davinci-leiden.nl
209 ms
styles.css
243 ms
sg-davinci.css
241 ms
s6.css
247 ms
davinci-leiden.nl
366 ms
js
60 ms
functions.js
250 ms
default-sg-davinci-header-home.jpg
320 ms
logo-sg-da-vinci.png
101 ms
icon-search.svg
99 ms
icon-search-mobile-sg.svg
100 ms
mobileMenu-carret-right.svg
99 ms
locatie-leonardo2.png
506 ms
locatie-kagerstraat.jpg
335 ms
locatie-lammenschans.jpg
381 ms
locatie-isk.jpg
418 ms
bg-sg-davinci-snel-naar.png
255 ms
list-carret-paars.svg
342 ms
list-carret-wit.svg
402 ms
S6uyw4BMUTPHjx4wWw.ttf
44 ms
S6u9w4BMUTPHh6UVSwiPHA.ttf
59 ms
S6u9w4BMUTPHh50XSwiPHA.ttf
63 ms
raxhHiqOu8IVPmnRc6SY1KXhnF_Y8RHYOLjOWA.ttf
77 ms
raxhHiqOu8IVPmnRc6SY1KXhnF_Y8fbfOLjOWA.ttf
77 ms
js
72 ms
analytics.js
50 ms
collect
47 ms
responsive.css
83 ms
davinci-leiden.nl accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
davinci-leiden.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
davinci-leiden.nl SEO score
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
Document uses legible font sizes
NL
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Davinci-leiden.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 Davinci-leiden.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.
davinci-leiden.nl
Open Graph description is not detected on the main page of Da Vinci Leiden. 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: