Tools & Wizards About Us
jack-wolfskin.cz screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

jack-wolfskin.cz

Outdoor Apparel, Footwear & Equipment – JACK WOLFSKIN

Page Load Speed

2 sec in total

First Response

139 ms

Resources Loaded

1.4 sec

Page Rendered

447 ms

jack-wolfskin.cz screenshot

About Website

Click here to check amazing JACK WOLFSKIN content. Otherwise, check out these important facts you probably never knew about jack-wolfskin.cz

JACK WOLFSKIN - Buy waterproof clothing, shoes, tents, equipment and more available online - JACK WOLFSKIN Outdoor Shop.

Visit jack-wolfskin.cz

Key Findings

We analyzed Jack-wolfskin.cz page load time and found that the first response time was 139 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

jack-wolfskin.cz performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value15.6 s

0/100

25%

SI (Speed Index)

Value15.7 s

0/100

10%

TBT (Total Blocking Time)

Value15,440 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.309

38/100

15%

TTI (Time to Interactive)

Value36.2 s

0/100

10%

Network Requests Diagram

jack-wolfskin.cz

139 ms

www.jack-wolfskin.cz

359 ms

kameleoon.js

294 ms

jackwolfskincz

156 ms

jwsdw.js

293 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 71% of them (32 requests) were addressed to the original Jack-wolfskin.cz, 4% (2 requests) were made to and 4% (2 requests) were made to App.usercentrics.eu. The less responsive or slowest element that took the longest time to load (589 ms) belongs to the original domain Jack-wolfskin.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 396.4 kB (21%)

Content Size

1.9 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jack-wolfskin.cz main page is 1.9 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. Only a small number of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 395.9 kB

  • Original 449.7 kB
  • After minification 449.4 kB
  • After compression 53.8 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 395.9 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 383.9 kB
  • After minification 383.9 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. JACK WOLFSKIN images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 423 B

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 1.0 MB

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 67 B

  • Original 65.9 kB
  • After minification 65.9 kB
  • After compression 65.8 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. Jack-wolfskin.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 16 (44%)

Requests Now

36

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JACK WOLFSKIN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

jack-wolfskin.cz

jack-wolfskin.cz

139 ms

www.jack-wolfskin.cz

www.jack-wolfskin.cz

359 ms

kameleoon.js

kameleoon.js

294 ms

jackwolfskincz

jackwolfskincz

156 ms

jwsdw.js

jwsdw.js

293 ms

jwsdw-framework.js

jwsdw-framework.js

66 ms

jwsdw-validate.js

jwsdw-validate.js

64 ms

javascript,window.jwsdwSettings.jQueryValidationLoaded=true

javascript,window.jwsdwSettings.jQueryValidationLoaded=true

2 ms

bv.js

bv.js

64 ms

install.js

install.js

64 ms

jws-purged.css

jws-purged.css

60 ms

jwsdw.css

jwsdw.css

63 ms

20240829ContentBar_styles.min.css

20240829ContentBar_styles.min.css

51 ms

20240829ContentBar_functions.min.js

20240829ContentBar_functions.min.js

90 ms

api.js

api.js

67 ms

loader.js

loader.js

43 ms

chat.min.js

chat.min.js

277 ms

dwanalytics-22.2.js

dwanalytics-22.2.js

61 ms

dwac-21.7.js

dwac-21.7.js

77 ms

gretel.min.js

gretel.min.js

40 ms

applepay.js

applepay.js

61 ms

Paw_JW_Wordmark_Yellow.svg

Paw_JW_Wordmark_Yellow.svg

51 ms

icons.svg

icons.svg

45 ms

Paw_JW_Wordmark_Yellow_Micro.svg

Paw_JW_Wordmark_Yellow_Micro.svg

51 ms

hero_S.webp

hero_S.webp

49 ms

left.jpg

left.jpg

52 ms

banner_S.webp

banner_S.webp

51 ms

right.jpg

right.jpg

54 ms

Slider-activities_1.jpg

Slider-activities_1.jpg

67 ms

productfinder.svg

productfinder.svg

69 ms

Slider-activities_3.jpg

Slider-activities_3.jpg

70 ms

Slider-activities_4.jpg

Slider-activities_4.jpg

53 ms

roboto-v18-cyrillic_cyrillic-ext-regular.woff

roboto-v18-cyrillic_cyrillic-ext-regular.woff

557 ms

roboto-v18-latin-ext-regular.woff

roboto-v18-latin-ext-regular.woff

496 ms

roboto-v18-cyrillic_cyrillic-ext-700.woff

roboto-v18-cyrillic_cyrillic-ext-700.woff

589 ms

roboto-v18-latin-ext-700.woff

roboto-v18-latin-ext-700.woff

519 ms

novera-tt-modern-bold.woff

novera-tt-modern-bold.woff

566 ms

flags.svg

flags.svg

32 ms

paymentlogos.svg

paymentlogos.svg

182 ms

shippinglogos.svg

shippinglogos.svg

337 ms

gtm.js

gtm.js

171 ms

bundle_legacy.js

bundle_legacy.js

156 ms

service.svg

service.svg

332 ms

wEGZYMGByntXwAAAABJRU5ErkJggg==

wEGZYMGByntXwAAAABJRU5ErkJggg==

177 ms

languages.json

languages.json

115 ms

Accessibility Review

jack-wolfskin.cz accessibility score

98

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.

Best Practices

jack-wolfskin.cz best practices score

83

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

jack-wolfskin.cz SEO score

86

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jack-wolfskin.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Jack-wolfskin.cz 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

jack-wolfskin.cz

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