Tools & Wizards About Us
swanson.nl screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

swanson.nl

Vitamins and Supplements, Natural Health Products | Swanson Health Products Europe

Page Load Speed

5.3 sec in total

First Response

22 ms

Resources Loaded

4.8 sec

Page Rendered

422 ms

swanson.nl screenshot

About Website

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

Swanson Health Products Europe offers quality products guaranteed and certified home affordable - vitamins and supplements, organic foods, natural products for skin care, homeopathic remedies and othe...

Visit swanson.nl

Key Findings

We analyzed Swanson.nl page load time and found that the first response time was 22 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

swanson.nl performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value18.2 s

0/100

25%

SI (Speed Index)

Value12.2 s

3/100

10%

TBT (Total Blocking Time)

Value1,180 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.774

5/100

15%

TTI (Time to Interactive)

Value17.2 s

4/100

10%

Network Requests Diagram

swanson.nl

22 ms

swanson.nl

16 ms

swansoneurope.com

1186 ms

gtm.js

69 ms

default.css

334 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Swanson.nl, 89% (71 requests) were made to Swansoneurope.com and 4% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Swansoneurope.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 399.1 kB (23%)

Content Size

1.7 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Swanson.nl main page is 1.7 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. 50% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 301.9 kB

  • Original 330.8 kB
  • After minification 195.4 kB
  • After compression 28.9 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. This page needs HTML code to be minified as it can gain 135.4 kB, which is 41% 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 301.9 kB or 91% of the original size.

Image Optimization

-6%

Potential reduce by 76.4 kB

  • Original 1.3 MB
  • After minification 1.2 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. Swanson images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 8.0 kB

  • Original 85.0 kB
  • After minification 85.0 kB
  • After compression 77.0 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

-21%

Potential reduce by 12.8 kB

  • Original 60.0 kB
  • After minification 60.0 kB
  • After compression 47.2 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. Swanson.nl needs all CSS files to be minified and compressed as it can save up to 12.8 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (36%)

Requests Now

77

After Optimization

49

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Swanson. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

swanson.nl

swanson.nl

22 ms

swanson.nl

swanson.nl

16 ms

swansoneurope.com

swansoneurope.com

1186 ms

gtm.js

gtm.js

69 ms

default.css

default.css

334 ms

light.css

light.css

342 ms

dark.css

dark.css

343 ms

bar.css

bar.css

344 ms

nivo-slider.css

nivo-slider.css

343 ms

style.css

style.css

438 ms

owl.carousel.min.css

owl.carousel.min.css

443 ms

owl.theme.default.min.css

owl.theme.default.min.css

450 ms

owl.carousel.min.js

owl.carousel.min.js

452 ms

main_new3.css

main_new3.css

570 ms

colorbox.css

colorbox.css

451 ms

responsive_new3.css

responsive_new3.css

548 ms

bx-slider.min.css

bx-slider.min.css

552 ms

simplelightbox.min.css

simplelightbox.min.css

558 ms

css

css

44 ms

jquery.min.js

jquery.min.js

40 ms

jquery-migrate-1.2.1.js

jquery-migrate-1.2.1.js

561 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

561 ms

main.js

main.js

658 ms

jquery.nivo.slider.js

jquery.nivo.slider.js

660 ms

jquery.fancybox.css

jquery.fancybox.css

668 ms

jquery.fancybox-nomin.js

jquery.fancybox-nomin.js

801 ms

jquery.autocomplete.js

jquery.autocomplete.js

672 ms

jquery.autocomplete.css

jquery.autocomplete.css

677 ms

script.js

script.js

800 ms

js

js

51 ms

fbevents.js

fbevents.js

59 ms

image_80ddbb70ac05473a423754abeb128eb9.jpg

image_80ddbb70ac05473a423754abeb128eb9.jpg

411 ms

image_dec2e93e1bb24e364975623247d08ff1.jpg

image_dec2e93e1bb24e364975623247d08ff1.jpg

128 ms

image_aae9d4ee476e74e036f10ee122912569.jpg

image_aae9d4ee476e74e036f10ee122912569.jpg

409 ms

image_c0d4096f476a444de3a2e0ec64dd6721.jpg

image_c0d4096f476a444de3a2e0ec64dd6721.jpg

129 ms

top-shadow.png

top-shadow.png

193 ms

SH50thWideF-flat.png

SH50thWideF-flat.png

197 ms

mini-cart-header-top.png

mini-cart-header-top.png

411 ms

logo-mobile-new.png

logo-mobile-new.png

409 ms

slider3335531.jpg

slider3335531.jpg

513 ms

slidermobileslidermobile3333369.jpg

slidermobileslidermobile3333369.jpg

438 ms

EasyWeightLosscopy.png

EasyWeightLosscopy.png

794 ms

NewestArrivalscopy.png

NewestArrivalscopy.png

681 ms

HealthyBraincopy.png

HealthyBraincopy.png

792 ms

product_6518.jpg

product_6518.jpg

411 ms

product_6342.jpg

product_6342.jpg

464 ms

product_6375.jpg

product_6375.jpg

528 ms

product_4432.jpg

product_4432.jpg

572 ms

logo_bestseller_copy01.png

logo_bestseller_copy01.png

623 ms

product_6544.jpg

product_6544.jpg

638 ms

label_toprated01.png

label_toprated01.png

682 ms

product_4235.jpg

product_4235.jpg

735 ms

product_6431.jpg

product_6431.jpg

749 ms

product_6394.jpg

product_6394.jpg

790 ms

thumb_4334.jpg

thumb_4334.jpg

795 ms

thumb_4235.jpg

thumb_4235.jpg

846 ms

thumb_4167.jpg

thumb_4167.jpg

859 ms

thumb_4160.jpg

thumb_4160.jpg

900 ms

thumb_6839.jpg

thumb_6839.jpg

902 ms

thumb_4309.jpg

thumb_4309.jpg

902 ms

thumb_6583.jpg

thumb_6583.jpg

904 ms

thumb_6181.jpg

thumb_6181.jpg

956 ms

thumb_7087.jpg

thumb_7087.jpg

969 ms

thumb_4333.jpg

thumb_4333.jpg

1010 ms

thumb_6406.jpg

thumb_6406.jpg

999 ms

asset_composer.js

asset_composer.js

60 ms

thumb_4396.jpg

thumb_4396.jpg

914 ms

thumb_4337.jpg

thumb_4337.jpg

910 ms

js

js

42 ms

thumb_6375.jpg

thumb_6375.jpg

942 ms

thumb_5913.jpg

thumb_5913.jpg

950 ms

thumb_6468.jpg

thumb_6468.jpg

932 ms

thumb_4432.jpg

thumb_4432.jpg

929 ms

thumb_6431.jpg

thumb_6431.jpg

718 ms

thumb_6908.jpg

thumb_6908.jpg

719 ms

thumb_4426.jpg

thumb_4426.jpg

771 ms

bottom-logos01.png

bottom-logos01.png

782 ms

swansoneurope.com

swansoneurope.com

817 ms

bullets.png

bullets.png

112 ms

swansoneurope.com

swansoneurope.com

817 ms

Accessibility Review

swanson.nl accessibility score

64

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

swanson.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

SEO Factors

swanson.nl SEO score

75

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Swanson.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Swanson.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

swanson.nl

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