Tools & Wizards About Us
zollaedpro.nl screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

zollaedpro.nl

Medical Devices and Technology Solutions - ZOLL Medical

Page Load Speed

2.5 sec in total

First Response

285 ms

Resources Loaded

2 sec

Page Rendered

220 ms

zollaedpro.nl screenshot

About Website

Click here to check amazing ZOLL Aedpro content. Otherwise, check out these important facts you probably never knew about zollaedpro.nl

For over 25 years, ZOLL has been a leader in developing medical devices and software solutions that advance emergency care and help save lives. Learn more about our resuscitation and critical care sol...

Visit zollaedpro.nl

Key Findings

We analyzed Zollaedpro.nl page load time and found that the first response time was 285 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

zollaedpro.nl performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value46.1 s

0/100

25%

SI (Speed Index)

Value17.1 s

0/100

10%

TBT (Total Blocking Time)

Value19,850 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.095

91/100

15%

TTI (Time to Interactive)

Value27.5 s

0/100

10%

Network Requests Diagram

zollaedpro.nl

285 ms

www.zollaed.nl

361 ms

prototype.js

409 ms

jquery-1.10.2.min.js

406 ms

noconflict.js

165 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Zollaedpro.nl, 67% (31 requests) were made to Zollaed.nl and 15% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (881 ms) relates to the external source Zollaed.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 569.3 kB (70%)

Content Size

808.2 kB

After Optimization

238.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zollaedpro.nl main page is 808.2 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. CSS take 482.0 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 16.9 kB

  • Original 22.7 kB
  • After minification 20.8 kB
  • After compression 5.9 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 16.9 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 1.9 kB

  • Original 90.8 kB
  • After minification 88.9 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. ZOLL Aedpro images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 137.9 kB

  • Original 212.7 kB
  • After minification 212.6 kB
  • After compression 74.8 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 137.9 kB or 65% of the original size.

CSS Optimization

-86%

Potential reduce by 412.7 kB

  • Original 482.0 kB
  • After minification 419.4 kB
  • After compression 69.3 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. Zollaedpro.nl needs all CSS files to be minified and compressed as it can save up to 412.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (84%)

Requests Now

37

After Optimization

6

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZOLL Aedpro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zollaedpro.nl

zollaedpro.nl

285 ms

www.zollaed.nl

www.zollaed.nl

361 ms

prototype.js

prototype.js

409 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

406 ms

noconflict.js

noconflict.js

165 ms

ccard.js

ccard.js

163 ms

validation.js

validation.js

350 ms

builder.js

builder.js

178 ms

effects.js

effects.js

321 ms

dragdrop.js

dragdrop.js

329 ms

controls.js

controls.js

354 ms

slider.js

slider.js

403 ms

js.js

js.js

460 ms

form.js

form.js

463 ms

translate.js

translate.js

463 ms

cookies.js

cookies.js

484 ms

modernizr.custom.min.js

modernizr.custom.min.js

481 ms

selectivizr.js

selectivizr.js

494 ms

matchMedia.js

matchMedia.js

495 ms

matchMedia.addListener.js

matchMedia.addListener.js

522 ms

enquire.js

enquire.js

530 ms

app.js

app.js

640 ms

jquery.cycle2.min.js

jquery.cycle2.min.js

562 ms

jquery.cycle2.swipe.min.js

jquery.cycle2.swipe.min.js

574 ms

slideshow.js

slideshow.js

574 ms

imagesloaded.js

imagesloaded.js

608 ms

minicart.js

minicart.js

616 ms

css

css

24 ms

styles.css

styles.css

881 ms

madisonisland.css

madisonisland.css

659 ms

logo.gif

logo.gif

89 ms

icon_sprite.png

icon_sprite.png

88 ms

col_right_callout_2_1.png

col_right_callout_2_1.png

440 ms

HpyIsCcidMk

HpyIsCcidMk

128 ms

bIcY3_3JNqUVRAQQRNVteQ.ttf

bIcY3_3JNqUVRAQQRNVteQ.ttf

58 ms

CcKI4k9un7TZVWzRVT-T8y3USBnSvpkopQaUR-2r7iU.ttf

CcKI4k9un7TZVWzRVT-T8y3USBnSvpkopQaUR-2r7iU.ttf

66 ms

-_Ctzj9b56b8RgXW8FAriS3USBnSvpkopQaUR-2r7iU.ttf

-_Ctzj9b56b8RgXW8FAriS3USBnSvpkopQaUR-2r7iU.ttf

66 ms

xkvoNo9fC8O2RDydKj12by3USBnSvpkopQaUR-2r7iU.ttf

xkvoNo9fC8O2RDydKj12by3USBnSvpkopQaUR-2r7iU.ttf

66 ms

JbtMzqLaYbbbCL9X6EvaIy3USBnSvpkopQaUR-2r7iU.ttf

JbtMzqLaYbbbCL9X6EvaIy3USBnSvpkopQaUR-2r7iU.ttf

67 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

64 ms

www-embed-player.js

www-embed-player.js

79 ms

base.js

base.js

140 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

63 ms

ad_status.js

ad_status.js

68 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

41 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

82 ms

Accessibility Review

zollaedpro.nl accessibility score

79

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

zollaedpro.nl best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

zollaedpro.nl SEO score

77

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zollaedpro.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Dutch language. Our system also found out that Zollaedpro.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

zollaedpro.nl

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