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name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value11.2 s

0/100

25%

SI (Speed Index)

Value6.6 s

38/100

10%

TBT (Total Blocking Time)

Value850 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.781

5/100

15%

TTI (Time to Interactive)

Value11.9 s

17/100

10%

kolbenfueller.de

386 ms

www.kolbenfueller.de

1055 ms

superfish.css

216 ms

reset.css

224 ms

oxid.css

448 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 98% of them (87 requests) were addressed to the original Kolbenfueller.de, 2% (2 requests) were made to Widgets.trustedshops.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Kolbenfueller.de.

Content Size

2.3 MB

After Optimization

1.4 MB

In fact, the total size of Kolbenfueller.de main page is 2.3 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. 35% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 100.1 kB

Original 114.3 kB
After minification 85.5 kB
After compression 14.2 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 28.8 kB, which is 25% 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 100.1 kB or 88% of the original size.

Image Optimization

-13%

Potential reduce by 171.8 kB

Original 1.3 MB
After minification 1.1 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. Obviously, Kolbenfueller needs image optimization as it can save up to 171.8 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 411.7 kB

Original 557.7 kB
After minification 521.3 kB
After compression 146.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 411.7 kB or 74% of the original size.

CSS Optimization

-84%

Potential reduce by 289.3 kB

Original 344.1 kB
After minification 283.1 kB
After compression 54.7 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. Kolbenfueller.de needs all CSS files to be minified and compressed as it can save up to 289.3 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 86 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolbenfueller. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

DE
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kolbenfueller.de can be misinterpreted by Google and other search engines. Our service has detected that German 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 Kolbenfueller.de 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

kolbenfueller.de

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Hochwertige Schreibgeräte wie Füllhalter, Kugelschreiber jetzt bestellen. | Papeterie Ballin

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

kolbenfueller.de

www.kolbenfueller.de

superfish.css

reset.css

oxid.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

kolbenfueller.de

www.kolbenfueller.de

superfish.css

reset.css

oxid.css

font-awesome.min.css

light.css

jscrollpane.css

x.png

jquery.min.js

jquery.cookie.js

jquery-ui.min.js

oxcookienote.js

jcarousellite.js

hoverIntent.js

supersubs.js

superfish.js

jquery.nivo.slider.pack.js

oxcenterelementonhover.js

HideText.js

oxflyoutbox.js

oxloginbox.js

oxmodalpopup.js

oxinputvalidator.js

oxinnerlabel.js

oxtopmenu.js

oxarticlebox.js

oxmanufacturerslider.js

oxequalizer.js

oxcountdown.js

oxminibasket.js

menu-divider.png

arrow-down.png

logo.png

trustedshops_m.gif

search-icon.png

tamitiomarsalaba(1).png

kawecoalrawba.png

starwalker_neu(1).png

s0953900_expertmetalliccc_ks.jpg

Box-starwalker-grau.png

banner_meisterstueck.png

STW_klein.png