Tools & Wizards About Us
bolster.nl screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    48% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

bolster.nl

De Bolster biologische zaden | voor een succesvolle teelt

Page Load Speed

12.3 sec in total

First Response

859 ms

Resources Loaded

10.5 sec

Page Rendered

972 ms

bolster.nl screenshot

About Website

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

Succesvol tuinieren begint met de vertrouwde kwaliteitszaden van De Bolster. Natuurlijk 100% biologisch, ruime keuze en snel geleverd. Bestel hier je zaden.

Visit bolster.nl

Key Findings

We analyzed Bolster.nl page load time and found that the first response time was 859 ms and then it took 11.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

bolster.nl performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value670 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.0 s

4/100

10%

Network Requests Diagram

www.bolster.nl

859 ms

louf.js

340 ms

optimize.js

143 ms

bootstrap.css

280 ms

all.css

212 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 61% of them (48 requests) were addressed to the original Bolster.nl, 5% (4 requests) were made to Googletagmanager.com and 5% (4 requests) were made to Static.sooqr.com. The less responsive or slowest element that took the longest time to load (5.5 sec) belongs to the original domain Bolster.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 166.5 kB (19%)

Content Size

879.3 kB

After Optimization

712.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bolster.nl main page is 879.3 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. 80% 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 636.3 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 155.4 kB

  • Original 171.5 kB
  • After minification 93.1 kB
  • After compression 16.1 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 78.4 kB, which is 46% 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 155.4 kB or 91% of the original size.

Image Optimization

-1%

Potential reduce by 8.8 kB

  • Original 636.3 kB
  • After minification 627.5 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. Bolster images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 2.3 kB

  • Original 39.3 kB
  • After minification 38.8 kB
  • After compression 37.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 32.2 kB
  • After minification 32.2 kB
  • After compression 32.2 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. Bolster.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 40 (59%)

Requests Now

68

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bolster. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.bolster.nl

www.bolster.nl

859 ms

louf.js

louf.js

340 ms

optimize.js

optimize.js

143 ms

bootstrap.css

bootstrap.css

280 ms

all.css

all.css

212 ms

jquery.bxslider.css

jquery.bxslider.css

897 ms

style.css

style.css

1378 ms

zeroPadding.css

zeroPadding.css

1279 ms

cookiemelding.css

cookiemelding.css

1834 ms

kennisbank.css

kennisbank.css

1432 ms

svgIconen.css

svgIconen.css

1888 ms

owl.carousel.min.css

owl.carousel.min.css

1715 ms

owl.theme.default.min.css

owl.theme.default.min.css

1428 ms

productprijsbox_categorie.css

productprijsbox_categorie.css

1456 ms

js

js

256 ms

jquery.js

jquery.js

1587 ms

bootstrap.js

bootstrap.js

1457 ms

bootstrap.touchspin.js

bootstrap.touchspin.js

1540 ms

jquery.zoom.min.js

jquery.zoom.min.js

1550 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

1633 ms

jquery.blImageCenter.js

jquery.blImageCenter.js

1642 ms

stickyheader.js

stickyheader.js

1666 ms

cookiemelding.js

cookiemelding.js

1710 ms

kennisbank.js

kennisbank.js

1721 ms

mimity.js

mimity.js

1758 ms

lazyload.min.js

lazyload.min.js

1773 ms

fontello.css

fontello.css

465 ms

ionicons.min.css

ionicons.min.css

479 ms

css

css

99 ms

css

css

128 ms

js

js

666 ms

gtm.js

gtm.js

735 ms

achtergrondfotolowres.jpg

achtergrondfotolowres.jpg

3361 ms

bolstericonen.svg

bolstericonen.svg

3363 ms

bannerliggenddef.jpg

bannerliggenddef.jpg

1091 ms

serie2-11.jpg

serie2-11.jpg

1073 ms

serie2-05.jpg

serie2-05.jpg

1076 ms

groenteman_1170x230.jpg

groenteman_1170x230.jpg

1076 ms

de-bolster-100-biologische-zaden-webshop3.jpg

de-bolster-100-biologische-zaden-webshop3.jpg

3360 ms

de-bolster-100-biologische-zaden-webshop4.jpg

de-bolster-100-biologische-zaden-webshop4.jpg

3348 ms

eetbare_1170x230.jpg

eetbare_1170x230.jpg

3374 ms

de-bolster-100-biologische-zaden-webshop2.jpg

de-bolster-100-biologische-zaden-webshop2.jpg

3348 ms

penen_1170x230.jpg

penen_1170x230.jpg

5269 ms

vind%20verkooppunt%20foto.png

vind%20verkooppunt%20foto.png

5269 ms

vlinder_klein.png

vlinder_klein.png

5283 ms

box2.jpg

box2.jpg

5284 ms

box3.jpg

box3.jpg

5284 ms

babyleaf-oogst.png

babyleaf-oogst.png

5268 ms

kiyoh-circle.png

kiyoh-circle.png

5387 ms

hotjar-1153384.js

hotjar-1153384.js

681 ms

analytics.js

analytics.js

2923 ms

NGSpv5_NC0k9P_v6ZUCbLRAHxK1EiSysdUmj.ttf

NGSpv5_NC0k9P_v6ZUCbLRAHxK1EiSysdUmj.ttf

2884 ms

NGSpv5_NC0k9P_v6ZUCbLRAHxK1EuyysdUmj.ttf

NGSpv5_NC0k9P_v6ZUCbLRAHxK1EuyysdUmj.ttf

4773 ms

NGSpv5_NC0k9P_v6ZUCbLRAHxK1E1yysdUmj.ttf

NGSpv5_NC0k9P_v6ZUCbLRAHxK1E1yysdUmj.ttf

4895 ms

fa-light-300.woff

fa-light-300.woff

595 ms

fa-regular-400.woff

fa-regular-400.woff

603 ms

fa-solid-900.woff

fa-solid-900.woff

2852 ms

GothamMedium.svg

GothamMedium.svg

5255 ms

GothamBook.svg

GothamBook.svg

5462 ms

Gotham-Bold_21010.svg

Gotham-Bold_21010.svg

5250 ms

snippet.js

snippet.js

4699 ms

bx_loader.gif

bx_loader.gif

4327 ms

bat.js

bat.js

4189 ms

sooqr-recommender.js

sooqr-recommender.js

4183 ms

js

js

4061 ms

modules.01a02f6e8b126e8c8358.js

modules.01a02f6e8b126e8c8358.js

294 ms

sooqr.js

sooqr.js

513 ms

collect

collect

474 ms

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

875 ms

26343526.js

26343526.js

461 ms

collect

collect

446 ms

GothamMedium.woff

GothamMedium.woff

341 ms

GothamBook.woff

GothamBook.woff

315 ms

Gotham-Bold_21010.woff

Gotham-Bold_21010.woff

318 ms

suggest.v4.js

suggest.v4.js

166 ms

26343526

26343526

181 ms

ga-audiences

ga-audiences

228 ms

clarity.js

clarity.js

54 ms

c.gif

c.gif

37 ms

Accessibility Review

bolster.nl accessibility score

75

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Best Practices

bolster.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

bolster.nl SEO score

82

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

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

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 Bolster.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 Bolster.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

bolster.nl

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