Tools & Wizards About Us
j4velin.de screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

j4velin.de

j4velin.development

Page Load Speed

1.3 sec in total

First Response

341 ms

Resources Loaded

822 ms

Page Rendered

93 ms

j4velin.de screenshot

About Website

Visit j4velin.de now to see the best up-to-date J 4 Velin content and also check out these interesting facts you probably never knew about j4velin.de

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Key Findings

We analyzed J4velin.de page load time and found that the first response time was 341 ms and then it took 915 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

j4velin.de performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.5 s

100/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.092

91/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

j4velin.de

341 ms

ajax.js

120 ms

gplus.png

120 ms

facebook.png

238 ms

logo.png

355 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that all of those requests were addressed to J4velin.de and no external sources were called. The less responsive or slowest element that took the longest time to load (355 ms) belongs to the original domain J4velin.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 12.0 kB (31%)

Content Size

38.4 kB

After Optimization

26.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of J4velin.de main page is 38.4 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 32.4 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 3.1 kB

  • Original 4.9 kB
  • After minification 4.9 kB
  • After compression 1.9 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. 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 3.1 kB or 63% of the original size.

Image Optimization

-25%

Potential reduce by 8.2 kB

  • Original 32.4 kB
  • After minification 24.2 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. Obviously, J 4 Velin needs image optimization as it can save up to 8.2 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 678 B

  • Original 1.1 kB
  • After minification 727 B
  • After compression 377 B

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 678 B or 64% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

4

After Optimization

4

  • Images
  • JavaScript

The browser has sent 4 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J 4 Velin. According to our analytics all requests are already optimized.

Network Requests Diagram

j4velin.de

j4velin.de

341 ms

ajax.js

ajax.js

120 ms

gplus.png

gplus.png

120 ms

facebook.png

facebook.png

238 ms

logo.png

logo.png

355 ms

Accessibility Review

j4velin.de accessibility score

73

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

j4velin.de best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

j4velin.de 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

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    DE

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise J4velin.de can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed German language. Our system also found out that J4velin.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

j4velin.de

Open Graph description is not detected on the main page of J 4 Velin. 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: