Tools & Wizards About Us
hartslagmetercenter.be screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

hartslagmetercenter.be

Hartslagmeter of hartslagband kopen? kopen? - Coolblue - Voor 23.59u, morgen in huis

Page Load Speed

3.6 sec in total

First Response

323 ms

Resources Loaded

2.9 sec

Page Rendered

373 ms

hartslagmetercenter.be screenshot

About Website

Welcome to hartslagmetercenter.be homepage info - get ready to check Hartslagmeter Center best content for Belgium right away, or after learning these important things about hartslagmetercenter.be

Hartslagmeter of hartslagband kopen? kopen? Op zondag en in de avonduren geleverd. Hartslagmeters bij Coolblue: gratis bezorging & retour.

Visit hartslagmetercenter.be

Key Findings

We analyzed Hartslagmetercenter.be page load time and found that the first response time was 323 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

hartslagmetercenter.be performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value6.9 s

34/100

10%

TBT (Total Blocking Time)

Value1,850 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

hartslagmetercenter.be

323 ms

www.hartslagmetercenter.be

906 ms

analytics.js

47 ms

gtm.js

44 ms

hartslagmetercenter.be

532 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Hartslagmetercenter.be, 24% (15 requests) were made to Image.coolblue.io and 21% (13 requests) were made to Skin.cbcdn.net. The less responsive or slowest element that took the longest time to load (906 ms) belongs to the original domain Hartslagmetercenter.be.

Page Optimization Overview & Recommendations

Page size can be reduced by 389.9 kB (59%)

Content Size

655.5 kB

After Optimization

265.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Hartslagmetercenter.be main page is 655.5 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. 35% of websites need less resources to load. CSS take 253.3 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 159.5 kB

  • Original 197.9 kB
  • After minification 188.5 kB
  • After compression 38.4 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 159.5 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 2.0 kB

  • Original 128.7 kB
  • After minification 126.7 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. Hartslagmeter Center images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 18.9 kB

  • Original 75.5 kB
  • After minification 75.5 kB
  • After compression 56.6 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 18.9 kB or 25% of the original size.

CSS Optimization

-83%

Potential reduce by 209.5 kB

  • Original 253.3 kB
  • After minification 253.2 kB
  • After compression 43.8 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. Hartslagmetercenter.be needs all CSS files to be minified and compressed as it can save up to 209.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (52%)

Requests Now

52

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hartslagmeter Center. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

hartslagmetercenter.be

hartslagmetercenter.be

323 ms

www.hartslagmetercenter.be

www.hartslagmetercenter.be

906 ms

analytics.js

analytics.js

47 ms

gtm.js

gtm.js

44 ms

hartslagmetercenter.be

hartslagmetercenter.be

532 ms

hartslagmetercenter.be

hartslagmetercenter.be

531 ms

collect

collect

37 ms

collect

collect

124 ms

154305

154305

652 ms

cta_arrow_blue.gif

cta_arrow_blue.gif

268 ms

jquery.min.js

jquery.min.js

69 ms

global.bb6bf6d0b874b695bc2bfc8ca3665301.js

global.bb6bf6d0b874b695bc2bfc8ca3665301.js

575 ms

homepage.aa0a444b0cd783ebd0b624b0fc2b2826.js

homepage.aa0a444b0cd783ebd0b624b0fc2b2826.js

260 ms

633 ms

collect

collect

46 ms

collect

collect

50 ms

collect

collect

52 ms

collect

collect

98 ms

collect

collect

97 ms

collect

collect

97 ms

icon-arrow.svg

icon-arrow.svg

254 ms

150248

150248

538 ms

353756

353756

536 ms

294674

294674

539 ms

230154

230154

537 ms

activity;src=4497735;type=Count0;cat=exper0;ord=1;num=3966631553718

activity;src=4497735;type=Count0;cat=exper0;ord=1;num=3966631553718

77 ms

ga-audiences

ga-audiences

51 ms

ga-audiences

ga-audiences

52 ms

ga-audiences

ga-audiences

51 ms

everything-for-a-smile.svg

everything-for-a-smile.svg

361 ms

global.32c99e77e00f5bd6bd544de4e522b5c2.css

global.32c99e77e00f5bd6bd544de4e522b5c2.css

242 ms

specialist-right-medium.png

specialist-right-medium.png

391 ms

anchor_external.png

anchor_external.png

234 ms

472361

472361

81 ms

294382

294382

87 ms

349104

349104

85 ms

339428

339428

82 ms

450927

450927

84 ms

294674

294674

159 ms

353756

353756

160 ms

358323

358323

164 ms

230154

230154

163 ms

143748

143748

247 ms

css

css

59 ms

global-modules.715e31efd13183a8556344824563a071.css

global-modules.715e31efd13183a8556344824563a071.css

201 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

23 ms

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

78 ms

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

89 ms

index.5c52a53ca116ae5400ae9329303ffb52.css

index.5c52a53ca116ae5400ae9329303ffb52.css

82 ms

rating_stars_sprite.png

rating_stars_sprite.png

96 ms

be_map_2.png

be_map_2.png

116 ms

payments-icons-sprite-be.svg

payments-icons-sprite-be.svg

320 ms

awards_sprite.png

awards_sprite.png

165 ms

aebl____-webfont.woff

aebl____-webfont.woff

445 ms

CB_icon_font_25.woff

CB_icon_font_25.woff

219 ms

recentlyviewed.0a2d6086c675fcb9a1f19e5921c0f5e0.js

recentlyviewed.0a2d6086c675fcb9a1f19e5921c0f5e0.js

82 ms

tracking-tools.4e47c5d0ae4865cfb57ee9c03b0cf8bb.js

tracking-tools.4e47c5d0ae4865cfb57ee9c03b0cf8bb.js

81 ms

stats.ebf8cf7f88df2ad8bcaefeca96200eb7.js

stats.ebf8cf7f88df2ad8bcaefeca96200eb7.js

182 ms

spinner-animation.gif

spinner-animation.gif

215 ms

dobraslab-book-webfont.woff

dobraslab-book-webfont.woff

115 ms

6325.js

6325.js

35 ms

s

s

94 ms

u

u

68 ms

Accessibility Review

hartslagmetercenter.be accessibility score

88

Accessibility Issues

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

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

hartslagmetercenter.be best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

hartslagmetercenter.be SEO score

91

Search Engine Optimization Advices

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

    NL

  • Language Claimed

    NL

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hartslagmetercenter.be 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 Hartslagmetercenter.be main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

hartslagmetercenter.be

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