Tools & Wizards About Us
vgziza.nl screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

vgziza.nl

IZA | Collectieve zorgverzekering met ruime dekkingen en scherpe premie

Page Load Speed

4.2 sec in total

First Response

356 ms

Resources Loaded

3.1 sec

Page Rendered

776 ms

vgziza.nl screenshot

About Website

Visit vgziza.nl now to see the best up-to-date Vgz IZA content and also check out these interesting facts you probably never knew about vgziza.nl

Werkt u bij gemeente, provincie, waterschap of de (vrijwillige) brandweer? IZA biedt een goede en betaalbare zorgverzekering met collectieve korting. Volop keuzevrijheid. Ontdek de voordelen van IZA v...

Visit vgziza.nl

Key Findings

We analyzed Vgziza.nl page load time and found that the first response time was 356 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

vgziza.nl performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

8/100

10%

LCP (Largest Contentful Paint)

Value25.3 s

0/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value3,690 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value25.6 s

0/100

10%

Network Requests Diagram

vgziza.nl

356 ms

www.iza.nl

1189 ms

ruxitagentjs_ICA7NVfghqrux_10289240325103055.js

341 ms

bootstrap.css

253 ms

sitecorelibs-bundle.css

706 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Vgziza.nl, 38% (21 requests) were made to Cdn.iza.nl and 11% (6 requests) were made to Cvweu-igs-ot-cdn-002.azureedge.net. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Iza.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 504.7 kB (15%)

Content Size

3.3 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vgziza.nl main page is 3.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 142.0 kB

  • Original 167.2 kB
  • After minification 120.9 kB
  • After compression 25.2 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 46.3 kB, which is 28% 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 142.0 kB or 85% of the original size.

Image Optimization

-9%

Potential reduce by 182.5 kB

  • Original 1.9 MB
  • After minification 1.8 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. Vgz IZA images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 125.0 kB

  • Original 996.8 kB
  • After minification 996.8 kB
  • After compression 871.8 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 125.0 kB or 13% of the original size.

CSS Optimization

-23%

Potential reduce by 55.2 kB

  • Original 241.1 kB
  • After minification 241.0 kB
  • After compression 185.9 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. Vgziza.nl needs all CSS files to be minified and compressed as it can save up to 55.2 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (63%)

Requests Now

52

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vgz IZA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vgziza.nl

vgziza.nl

356 ms

www.iza.nl

www.iza.nl

1189 ms

ruxitagentjs_ICA7NVfghqrux_10289240325103055.js

ruxitagentjs_ICA7NVfghqrux_10289240325103055.js

341 ms

bootstrap.css

bootstrap.css

253 ms

sitecorelibs-bundle.css

sitecorelibs-bundle.css

706 ms

custom-iza.css

custom-iza.css

306 ms

otSDKStub.js

otSDKStub.js

39 ms

cookies-banner.js

cookies-banner.js

373 ms

loaderfile-iza.js

loaderfile-iza.js

373 ms

fonts.css

fonts.css

53 ms

utilities.css

utilities.css

86 ms

theme-whitelabel.css

theme-whitelabel.css

91 ms

theme-iza.css

theme-iza.css

435 ms

cvgz-iml-loader.js

cvgz-iml-loader.js

734 ms

light.css

light.css

605 ms

styling.css

styling.css

627 ms

index.js

index.js

645 ms

theme-vgz.css

theme-vgz.css

29 ms

sitecorelibs-bundle.js

sitecorelibs-bundle.js

292 ms

custom-iza.js

custom-iza.js

228 ms

index.js

index.js

585 ms

styles.css

styles.css

45 ms

runtime.js

runtime.js

65 ms

polyfills.js

polyfills.js

76 ms

main.js

main.js

292 ms

a0705652-12f9-496a-8f8a-1b999249c1b1.json

a0705652-12f9-496a-8f8a-1b999249c1b1.json

25 ms

gtm.js

gtm.js

109 ms

page-layout-1.0.0.css

page-layout-1.0.0.css

40 ms

chatbot-120200.css

chatbot-120200.css

25 ms

fonts.css

fonts.css

374 ms

location

location

82 ms

st.js

st.js

225 ms

expoints-external-loader.min.js

expoints-external-loader.min.js

522 ms

spritesymbol.svg

spritesymbol.svg

228 ms

iza-hero-vakantiechecklist-1717x389.png

iza-hero-vakantiechecklist-1717x389.png

209 ms

iza-header-mobiel-thema-vakantiechecklist-768x490.png

iza-header-mobiel-thema-vakantiechecklist-768x490.png

204 ms

iza-inloggen.svg

iza-inloggen.svg

35 ms

iza_promo_collectieve-voordelen_2023.png

iza_promo_collectieve-voordelen_2023.png

198 ms

iza_promo_sneller-aan-de-beurt_2023.png

iza_promo_sneller-aan-de-beurt_2023.png

201 ms

iza-promo-mantelzorg-555x200.jpg

iza-promo-mantelzorg-555x200.jpg

200 ms

zorgzaam_promo_gezond-leven_2023.png

zorgzaam_promo_gezond-leven_2023.png

198 ms

homepage-iza.png

homepage-iza.png

202 ms

app-store-badge.png

app-store-badge.png

200 ms

google-play-badge.png

google-play-badge.png

566 ms

vgz_mindfulnessapp_schermen_home.jpg

vgz_mindfulnessapp_schermen_home.jpg

791 ms

apple.svg

apple.svg

534 ms

google-play.png

google-play.png

544 ms

otBannerSdk.js

otBannerSdk.js

169 ms

fontawesome-webfont-woff.woff

fontawesome-webfont-woff.woff

167 ms

yesXWKp4prE6QX55qrRj.json

yesXWKp4prE6QX55qrRj.json

161 ms

fonts.css

fonts.css

8 ms

ga.js

ga.js

19 ms

new_embed-2552d8d62d9c60f59b3b11a5d083d1ebd090c72de809fc7c76fb339825302241.css

new_embed-2552d8d62d9c60f59b3b11a5d083d1ebd090c72de809fc7c76fb339825302241.css

2 ms

nl-nl.js

nl-nl.js

178 ms

cc.js

cc.js

168 ms

Accessibility Review

vgziza.nl accessibility score

92

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

Best Practices

vgziza.nl best practices score

75

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

vgziza.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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vgziza.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Vgziza.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

vgziza.nl

Open Graph data is detected on the main page of Vgz IZA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: