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name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

70/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value2,260 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.2 s

25/100

10%

heizoel24.de

302 ms

www.heizoel24.de

772 ms

css

27 ms

startPage.min.css

699 ms

jquery.min.js

29 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 31% of them (20 requests) were addressed to the original Heizoel24.de, 45% (29 requests) were made to Cdn.heizoel24.de and 9% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (800 ms) relates to the external source Cdn.heizoel24.de.

Content Size

1.0 MB

After Optimization

578.8 kB

In fact, the total size of Heizoel24.de main page is 1.0 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 429.8 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 75.4 kB

Original 113.3 kB
After minification 95.7 kB
After compression 37.9 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 17.6 kB, which is 16% 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 75.4 kB or 67% of the original size.

Image Optimization

-2%

Potential reduce by 7.9 kB

Original 429.8 kB
After minification 421.9 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. Heiz Oel24 images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 248.9 kB

Original 366.7 kB
After minification 364.3 kB
After compression 117.7 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 248.9 kB or 68% of the original size.

CSS Optimization

-99%

Potential reduce by 124.8 kB

Original 126.1 kB
After minification 4.5 kB
After compression 1.3 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. Heizoel24.de needs all CSS files to be minified and compressed as it can save up to 124.8 kB or 99% of the original size.

Requests Now

After Optimization

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Heiz Oel24. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts 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

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 are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

Language and Encoding

Language Detected

DE
Language Claimed

DE
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Heizoel24.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Heizoel24.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

heizoel24.de

Open Graph description is not detected on the main page of Heiz Oel24. 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

Heizöl Preisvergleich beim Testsieger » HeizOel24 ✓

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

heizoel24.de

www.heizoel24.de

css

startPage.min.css

jquery.min.js

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

heizoel24.de

www.heizoel24.de

css

startPage.min.css

jquery.min.js

js.axd

jquery.jqChart.min.js

lightbox.css

complete.js

g_tracking.js

gpt.js

HeizOel24Logo-de.png

HeizOel24Logo-small-de.png

arrow_white.png

trusted_shops_icon.png

user_white.png

joey-auszeichnungen-slider.jpg

warentest.png

ntv-wide.jpg

wdj2015-siegel.jpg

mobileApp.png

RAL-Guetezeichen-Energiehandel-HeizOel24.png

facebook-icon.png

google-icon.png

twitter-icon.png

xing-icon.png

logo.png

phone_icon.png

fax_icon.png

mail_icon.png

arrow_green.png

slider-img-placeholder.jpg

pubads_impl_81.js

flag-sprite.png

RadioButtonBlueNew.png

right-grey-arrow.png

arrow.png

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