Tools & Wizards About Us
diac-leiden.ziekenhuis.nl screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

diac-leiden.ziekenhuis.nl

Alrijne Ziekenhuis - locatie Leiden - Leiden, Zuid-Holland

Page Load Speed

2.9 sec in total

First Response

152 ms

Resources Loaded

2.6 sec

Page Rendered

181 ms

diac-leiden.ziekenhuis.nl screenshot

About Website

Visit diac-leiden.ziekenhuis.nl now to see the best up-to-date Diac Leiden Ziekenhuis content for Netherlands and also check out these interesting facts you probably never knew about diac-leiden.ziekenhuis.nl

Bekijk hier informatie over Alrijne Ziekenhuis - locatie Leiden in Leiden, zoals de contactgegevens en locatie van deze zorginstelling.

Visit diac-leiden.ziekenhuis.nl

Key Findings

We analyzed Diac-leiden.ziekenhuis.nl page load time and found that the first response time was 152 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

diac-leiden.ziekenhuis.nl performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.062

97/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

diac-leiden.ziekenhuis.nl

152 ms

diac-leiden.ziekenhuis.nl

376 ms

item9712

525 ms

styles.css

156 ms

jquery-ui.css

234 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 7% of them (2 requests) were addressed to the original Diac-leiden.ziekenhuis.nl, 48% (13 requests) were made to Ziekenhuis.nl and 11% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (836 ms) relates to the external source Maps.googleapis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 43.8 kB (17%)

Content Size

265.1 kB

After Optimization

221.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Diac-leiden.ziekenhuis.nl main page is 265.1 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. 50% of websites need less resources to load. Javascripts take 126.7 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 31.6 kB

  • Original 40.2 kB
  • After minification 35.1 kB
  • After compression 8.6 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. This page needs HTML code to be minified as it can gain 5.1 kB, which is 13% 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 31.6 kB or 79% of the original size.

Image Optimization

-11%

Potential reduce by 5.8 kB

  • Original 54.7 kB
  • After minification 48.9 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. Obviously, Diac Leiden Ziekenhuis needs image optimization as it can save up to 5.8 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-5%

Potential reduce by 6.2 kB

  • Original 126.7 kB
  • After minification 125.7 kB
  • After compression 120.5 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 170 B

  • Original 43.5 kB
  • After minification 43.5 kB
  • After compression 43.4 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. Diac-leiden.ziekenhuis.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 9 (45%)

Requests Now

20

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Diac Leiden Ziekenhuis. 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 as a result speed up the page load time.

Network Requests Diagram

diac-leiden.ziekenhuis.nl

diac-leiden.ziekenhuis.nl

152 ms

diac-leiden.ziekenhuis.nl

diac-leiden.ziekenhuis.nl

376 ms

item9712

item9712

525 ms

styles.css

styles.css

156 ms

jquery-ui.css

jquery-ui.css

234 ms

LAB.js

LAB.js

231 ms

css

css

142 ms

analytics.js

analytics.js

553 ms

gtm.js

gtm.js

772 ms

logo--negative.svg

logo--negative.svg

633 ms

staticmap

staticmap

836 ms

logo-alrijne-leiden.png

logo-alrijne-leiden.png

561 ms

logo-ziekenhuis-alt.png

logo-ziekenhuis-alt.png

531 ms

SlGVmQWMvZQIdix7AFxXkHNSaA.ttf

SlGVmQWMvZQIdix7AFxXkHNSaA.ttf

303 ms

SlGWmQWMvZQIdix7AFxXmMh3eDs1Yg.ttf

SlGWmQWMvZQIdix7AFxXmMh3eDs1Yg.ttf

327 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

356 ms

materialdesignicons-webfont.woff

materialdesignicons-webfont.woff

423 ms

jquery.min.js

jquery.min.js

326 ms

jquery-ui.min.js

jquery-ui.min.js

332 ms

analytics.js

analytics.js

218 ms

bower.min.js

bower.min.js

398 ms

script.min.js

script.min.js

435 ms

hospital.min.js

hospital.min.js

400 ms

featured-slider.min.js

featured-slider.min.js

399 ms

collect

collect

85 ms

collect

collect

250 ms

ga-audiences

ga-audiences

160 ms

Accessibility Review

diac-leiden.ziekenhuis.nl accessibility score

88

Accessibility Issues

Names and labels

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.

Impact

Issue

High

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

diac-leiden.ziekenhuis.nl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

diac-leiden.ziekenhuis.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 Diac-leiden.ziekenhuis.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 Diac-leiden.ziekenhuis.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

diac-leiden.ziekenhuis.nl

Open Graph description is not detected on the main page of Diac Leiden Ziekenhuis. 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: