Access kukullus.nl. City tour, Museum tours, private guide, Sightseeing in Utrecht, Delft, The Hague, Amsterdam, Cleves,...

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value90 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.125

83/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

kukullus.nl

209 ms

624 ms

bootstrap.css

196 ms

content.css

281 ms

system.css

284 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 97% of them (103 requests) were addressed to the original Kukullus.nl, 1% (1 request) were made to Badges.instagram.com and 1% (1 request) were made to Xing.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Kukullus.nl.

Content Size

23.5 MB

After Optimization

22.2 MB

In fact, the total size of Kukullus.nl main page is 23.5 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. 60% of websites need less resources to load. Images take 23.4 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 50.1 kB

Original 63.9 kB
After minification 59.9 kB
After compression 13.8 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 50.1 kB or 78% of the original size.

Image Optimization

-5%

Potential reduce by 1.2 MB

Original 23.4 MB
After minification 22.1 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. Kukullus images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 10.4 kB

Original 67.8 kB
After minification 65.1 kB
After compression 57.4 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 10.4 kB or 15% of the original size.

CSS Optimization

-6%

Potential reduce by 2.9 kB

Original 45.4 kB
After minification 45.4 kB
After compression 42.5 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. Kukullus.nl has all CSS files already compressed.

Requests Now

101

After Optimization

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kukullus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 12 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

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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 Kukullus.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 Kukullus.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

kukullus.nl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

City tour, Museum tours, private guide, Sightseeing in Utrecht, Delft, The Hague, Amsterdam, Cleves, Düsseldorf, Siegen • Claudia Schipper, Translatio...

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

kukullus.nl

bootstrap.css

content.css

system.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

kukullus.nl

bootstrap.css

content.css

system.css

template.css

megamenu.css

font-awesome.min.css

layout_glossary.css

custom.css

corporate.css

template.css

style.css

jquery.min.js

jquery-noconflict.js

jquery-migrate.min.js

caption.js

bootstrap.js

jquery.tap.min.js

script.js

menu.js

script.js

nav-collapse.js

system.css

ig-badge-48.png

10_en_btn.gif

btn_viewmy_120x33.png

logo_en_small.png

nl.gif

de.gif

sl-Domtoren_Utrecht_4871.JPG

sl-Rijksmuseum_Amsterdam_1238_.jpg

sl-J.Moreelse_Democritus_CMU_FH-Mus_0045__.jpg

sl-Grachtenhaeuser%20Amsterdam_0286.JPG

sl-Amphitheater_Tiergarten_Kleve_Kleef_0057_.jpg

sl-Vermeer_girl_pearl_Mauritshuis_1464_.jpg

sl-Stadhuis-Paleis-op-de-Dam_0164_.jpg

sl-I.Israels_Ezeltje%20rijden_0855_.jpg

sl-Gracht%20mit%20Br%C3%BCcke_brug_Amsterdam_0366_BW.jpg

sl-Ostade-rederijkers_0286.JPG

sl-Rembrandt-Judenbraut-detail_0065%20-%20Copy.JPG

sl-Van_Gogh_screen_VG-Museum_0069_detail.jpg

sl-Pandhof_Utrecht_0007.JPG

sl-D%C3%BCsseldorf%20Rhein%20Rijn%20skyline_0182.JPG

sl-Vermeer_melkmeisje-Milchmagd_Rijksmuseum_0278_.jpg