Tools & Wizards About Us
boerhaave.nl screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 96

    SEO

    Google-friendlier than
    90% of websites

boerhaave.nl

Zelfverzekerd ben je het mooist | Boerhaave

Page Load Speed

7.8 sec in total

First Response

590 ms

Resources Loaded

6 sec

Page Rendered

1.2 sec

boerhaave.nl screenshot

About Website

Welcome to boerhaave.nl homepage info - get ready to check Boerhaave best content for Netherlands right away, or after learning these important things about boerhaave.nl

Boerhaave kliniek is de grootste kliniek voor plastische chirurgie. Al meer dan 100 jaar gevestigd in Amsterdam. Dintelstraat 60. Bel ons via 020-3050030

Visit boerhaave.nl

Key Findings

We analyzed Boerhaave.nl page load time and found that the first response time was 590 ms and then it took 7.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

boerhaave.nl performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value20.6 s

0/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value18,800 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value30.3 s

0/100

10%

Network Requests Diagram

www.boerhaave.nl

590 ms

wp-emoji-release.min.js

190 ms

style.css

179 ms

modernizr-2.6.2.min.js

187 ms

jquery-1.11.1.min.js

270 ms

Our browser made a total of 107 requests to load all elements on the main page. We found that 90% of them (96 requests) were addressed to the original Boerhaave.nl, 3% (3 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Boerhaave.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 537.1 kB (22%)

Content Size

2.5 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Boerhaave.nl main page is 2.5 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. 65% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 47.2 kB

  • Original 59.0 kB
  • After minification 58.5 kB
  • After compression 11.7 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 47.2 kB or 80% of the original size.

Image Optimization

-5%

Potential reduce by 94.7 kB

  • Original 1.8 MB
  • After minification 1.7 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. Boerhaave images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 245.9 kB

  • Original 363.1 kB
  • After minification 333.7 kB
  • After compression 117.3 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 245.9 kB or 68% of the original size.

CSS Optimization

-80%

Potential reduce by 149.4 kB

  • Original 185.7 kB
  • After minification 140.4 kB
  • After compression 36.3 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. Boerhaave.nl needs all CSS files to be minified and compressed as it can save up to 149.4 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (56%)

Requests Now

97

After Optimization

43

  • Images
  • JavaScript
  • CSS

The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Boerhaave. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 34 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.boerhaave.nl

www.boerhaave.nl

590 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

190 ms

style.css

style.css

179 ms

modernizr-2.6.2.min.js

modernizr-2.6.2.min.js

187 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

270 ms

jquery.flexslider.js

jquery.flexslider.js

189 ms

plugins.js

plugins.js

258 ms

main.js

main.js

267 ms

css

css

30 ms

comment-reply.min.js

comment-reply.min.js

123 ms

jquery.form.min.js

jquery.form.min.js

126 ms

scripts.js

scripts.js

125 ms

sitepress.js

sitepress.js

204 ms

xdomain-data.js

xdomain-data.js

211 ms

wp-embed.min.js

wp-embed.min.js

210 ms

normalize.css

normalize.css

185 ms

grid.css

grid.css

183 ms

classes.css

classes.css

185 ms

fonts.css

fonts.css

264 ms

main.css

main.css

276 ms

blog.css

blog.css

271 ms

ie.css

ie.css

278 ms

responsive.css

responsive.css

272 ms

menu.css

menu.css

274 ms

video.css

video.css

350 ms

flexslider.css

flexslider.css

360 ms

hero.css

hero.css

361 ms

doormat.css

doormat.css

359 ms

employees.css

employees.css

361 ms

buttons.css

buttons.css

362 ms

page-intro.css

page-intro.css

438 ms

half-column-items.css

half-column-items.css

452 ms

tarieven.css

tarieven.css

449 ms

extra-image.css

extra-image.css

451 ms

breadcrumbs.css

breadcrumbs.css

453 ms

search.css

search.css

452 ms

404.css

404.css

525 ms

footer.css

footer.css

540 ms

home.css

home.css

544 ms

behandelingen-single.css

behandelingen-single.css

537 ms

testimonials.css

testimonials.css

532 ms

faq.css

faq.css

533 ms

about.css

about.css

541 ms

contact.css

contact.css

544 ms

afspraak-maken.css

afspraak-maken.css

544 ms

kennisdatabank.css

kennisdatabank.css

542 ms

fbevents.js

fbevents.js

101 ms

logo.png

logo.png

316 ms

menu.svg

menu.svg

319 ms

mobile-contact.png

mobile-contact.png

317 ms

en.png

en.png

316 ms

logo-bald.png

logo-bald.png

318 ms

language-menu-bg.png

language-menu-bg.png

320 ms

nl.png

nl.png

322 ms

online-appointment-sub.png

online-appointment-sub.png

322 ms

best-clinic.png

best-clinic.png

375 ms

slidehome-1.jpg

slidehome-1.jpg

877 ms

play_button_white.png

play_button_white.png

322 ms

open-gesloten-rhinoplatiek.jpg

open-gesloten-rhinoplatiek.jpg

359 ms

teaser-bg.png

teaser-bg.png

323 ms

icon-gezicht.png

icon-gezicht.png

323 ms

icon-borsten.png

icon-borsten.png

324 ms

icon-lichaam.png

icon-lichaam.png

442 ms

icon-regulierezorg.png

icon-regulierezorg.png

374 ms

icon-tandheelkunde.png

icon-tandheelkunde.png

399 ms

icon-contact.png

icon-contact.png

450 ms

intro-bg.png

intro-bg.png

451 ms

afbeelding-home-intro.jpg

afbeelding-home-intro.jpg

891 ms

Untitled-1.jpg

Untitled-1.jpg

1082 ms

video-block-bg.png

video-block-bg.png

538 ms

play_button.png

play_button.png

536 ms

drlp-van-der-weij.jpg

drlp-van-der-weij.jpg

625 ms

drs-mc-schuringa-plastisch-chirurg-boerhaave-medisch-centrum.jpg

drs-mc-schuringa-plastisch-chirurg-boerhaave-medisch-centrum.jpg

709 ms

smits.jpg

smits.jpg

711 ms

drs-p-roosink-plastisch-chirurg-boerhaave-medisch-centrum.jpg

drs-p-roosink-plastisch-chirurg-boerhaave-medisch-centrum.jpg

714 ms

dr-ch-p-henny-anesthesioloog-boerhaave-medisch-centrum.jpg

dr-ch-p-henny-anesthesioloog-boerhaave-medisch-centrum.jpg

902 ms

drs-pm-elte-internist-boerhaave-medisch-centrum.jpg

drs-pm-elte-internist-boerhaave-medisch-centrum.jpg

888 ms

drs-h-hortoglu-boerhaave-medisch-centrum.jpg

drs-h-hortoglu-boerhaave-medisch-centrum.jpg

900 ms

enrique-rikken.jpg

enrique-rikken.jpg

1004 ms

Sander_menso_tandarts-endodontoloog.jpg

Sander_menso_tandarts-endodontoloog.jpg

979 ms

Tandarts-drs-m-hunfeld-boerhaave-medisch-centrum.jpg

Tandarts-drs-m-hunfeld-boerhaave-medisch-centrum.jpg

986 ms

Tandarts-Cristina-Zarauz.jpg

Tandarts-Cristina-Zarauz.jpg

1083 ms

drs-egm-couturier-neuroloog-boerhaave-medisch-centrum.jpg

drs-egm-couturier-neuroloog-boerhaave-medisch-centrum.jpg

1031 ms

analytics.js

analytics.js

249 ms

drs-n-vlam-neuroloog-boerhaave-medisch-centrum.jpg

drs-n-vlam-neuroloog-boerhaave-medisch-centrum.jpg

783 ms

dr-hl-hamburger-neuroloog-boerhaave-medisch-centrum.jpg

dr-hl-hamburger-neuroloog-boerhaave-medisch-centrum.jpg

877 ms

dr-jb-van-mourik-anti-aging-geneeskunde-boerhaave-medisch-centrum.jpg

dr-jb-van-mourik-anti-aging-geneeskunde-boerhaave-medisch-centrum.jpg

813 ms

judith-van-eerde-ontharen-boerhaave-medisch-centrum.jpg

judith-van-eerde-ontharen-boerhaave-medisch-centrum.jpg

868 ms

dorith-van-der-linden-ontharen-boerhaave-medisch-centrum.jpg

dorith-van-der-linden-ontharen-boerhaave-medisch-centrum.jpg

966 ms

n-t-hoen-fysiotherapeute-boerhaave-medisch-centrum.jpg

n-t-hoen-fysiotherapeute-boerhaave-medisch-centrum.jpg

884 ms

h-steltenpool-manueel-therapeut-boerhaave-medisch-centrum.jpg

h-steltenpool-manueel-therapeut-boerhaave-medisch-centrum.jpg

881 ms

jc-koeman-fysiotherapeute-boerhaave-medisch-centrum.jpg

jc-koeman-fysiotherapeute-boerhaave-medisch-centrum.jpg

906 ms

footer-menu-list-bg.png

footer-menu-list-bg.png

952 ms

keurmerken-sprite.png

keurmerken-sprite.png

957 ms

museosans-300-webfont.woff

museosans-300-webfont.woff

959 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

27 ms

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

27 ms

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

28 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1053 ms

107 ms

collect

collect

44 ms

museosans_500-webfont.woff

museosans_500-webfont.woff

944 ms

fontello.woff

fontello.woff

988 ms

collect

collect

56 ms

ga-audiences

ga-audiences

33 ms

print.css

print.css

91 ms

swfobject.js

swfobject.js

15 ms

Accessibility Review

boerhaave.nl accessibility score

84

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

boerhaave.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

Page has valid source maps

SEO Factors

boerhaave.nl SEO score

96

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

High

Tap targets are not sized appropriately

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 Boerhaave.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 Boerhaave.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

boerhaave.nl

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