Tools & Wizards About Us
theaterboekwinkel.nl screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

theaterboekwinkel.nl

Theaterboeken en meer | Theaterboekwinkel.nl - Theaterboekwinkel - Veilig online kopen en bestellen

Page Load Speed

3.4 sec in total

First Response

1 sec

Resources Loaded

2.1 sec

Page Rendered

223 ms

theaterboekwinkel.nl screenshot

About Website

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

Theaterboekwinkel.nl is een webwinkel voor theaterboeken, toneelteksten en -boeken, bladmuziek, cd en dvd's, cabaret, musical, ballet, opera, muziek en film.

Visit theaterboekwinkel.nl

Key Findings

We analyzed Theaterboekwinkel.nl page load time and found that the first response time was 1 sec and then it took 2.4 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

theaterboekwinkel.nl performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

38/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.089

92/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

Network Requests Diagram

theaterboekwinkel.nl

1049 ms

stylesheet_c3ad6dc8fa.css

328 ms

template.css

331 ms

style.css

332 ms

submenu.css

328 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 95% of them (42 requests) were addressed to the original Theaterboekwinkel.nl, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Theaterboekwinkel.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 143.9 kB (39%)

Content Size

370.9 kB

After Optimization

227.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Theaterboekwinkel.nl main page is 370.9 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. 25% of websites need less resources to load. Images take 295.4 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 20.4 kB

  • Original 25.9 kB
  • After minification 22.4 kB
  • After compression 5.5 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 3.5 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 20.4 kB or 79% of the original size.

Image Optimization

-30%

Potential reduce by 89.9 kB

  • Original 295.4 kB
  • After minification 205.4 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, Theaterboekwinkel needs image optimization as it can save up to 89.9 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-59%

Potential reduce by 16.6 kB

  • Original 28.1 kB
  • After minification 25.9 kB
  • After compression 11.6 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 16.6 kB or 59% of the original size.

CSS Optimization

-79%

Potential reduce by 17.0 kB

  • Original 21.5 kB
  • After minification 16.3 kB
  • After compression 4.5 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. Theaterboekwinkel.nl needs all CSS files to be minified and compressed as it can save up to 17.0 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (21%)

Requests Now

43

After Optimization

34

  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Theaterboekwinkel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

theaterboekwinkel.nl

theaterboekwinkel.nl

1049 ms

stylesheet_c3ad6dc8fa.css

stylesheet_c3ad6dc8fa.css

328 ms

template.css

template.css

331 ms

style.css

style.css

332 ms

submenu.css

submenu.css

328 ms

webshop.css

webshop.css

331 ms

blocks.css

blocks.css

329 ms

script.js

script.js

409 ms

urchin.js

urchin.js

6 ms

javascript_a708894199.js

javascript_a708894199.js

417 ms

xajax.js

xajax.js

415 ms

set-positions.js

set-positions.js

413 ms

__utm.gif

__utm.gif

36 ms

logo.jpg

logo.jpg

168 ms

logootjes.gif

logootjes.gif

84 ms

top-left.jpg

top-left.jpg

169 ms

top-right.jpg

top-right.jpg

85 ms

twitter.jpg

twitter.jpg

168 ms

facebook.jpg

facebook.jpg

86 ms

0940aeafde.jpg

0940aeafde.jpg

166 ms

cdc731e237.jpg

cdc731e237.jpg

166 ms

f9e467674e.jpg

f9e467674e.jpg

167 ms

1b418c4097.jpg

1b418c4097.jpg

252 ms

c8247dd511.jpg

c8247dd511.jpg

250 ms

4cbffc0d07.jpg

4cbffc0d07.jpg

258 ms

filmjaarboek2015.jpg

filmjaarboek2015.jpg

258 ms

537075d20c.jpg

537075d20c.jpg

258 ms

8c29b8c407.png

8c29b8c407.png

422 ms

ff01257ac5.jpg

ff01257ac5.jpg

331 ms

92c3011f39.jpg

92c3011f39.jpg

332 ms

af0a13fd61.jpg

af0a13fd61.jpg

339 ms

e4098ca391.jpg

e4098ca391.jpg

508 ms

2db6440d01.jpg

2db6440d01.jpg

340 ms

93884b9298.jpg

93884b9298.jpg

414 ms

schaep-ahoy.jpg

schaep-ahoy.jpg

414 ms

dcff9035ee.jpg

dcff9035ee.jpg

421 ms

748c059f94.jpg

748c059f94.jpg

422 ms

0e7f32a31d.jpg

0e7f32a31d.jpg

660 ms

nav-bg.jpg

nav-bg.jpg

481 ms

trunk-bg.jpg

trunk-bg.jpg

489 ms

button-wrapper.png

button-wrapper.png

488 ms

left-border.png

left-border.png

489 ms

right-border.png

right-border.png

566 ms

footer-new.jpg

footer-new.jpg

651 ms

Accessibility Review

theaterboekwinkel.nl accessibility score

65

Accessibility Issues

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

theaterboekwinkel.nl best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

theaterboekwinkel.nl SEO score

54

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

High

robots.txt is not valid

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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 Theaterboekwinkel.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 Theaterboekwinkel.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

theaterboekwinkel.nl

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