Access spektrum.de. Spektrum.de - Nachrichten aus Wissenschaft und Forschung

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value20.4 s

0/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value2,050 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value2.414

0/100

15%

TTI (Time to Interactive)

Value24.7 s

0/100

10%

www.spektrum.de

853 ms

jquery.min.js

48 ms

app.css

65 ms

loader.js

732 ms

ebx.js

61 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 13% of them (2 requests) were addressed to the original Spektrum.de, 47% (7 requests) were made to Static.spektrum.de and 13% (2 requests) were made to Data-285d0c5451.spektrum.de. The less responsive or slowest element that took the longest time to load (853 ms) belongs to the original domain Spektrum.de.

Content Size

1.7 MB

After Optimization

591.2 kB

In fact, the total size of Spektrum.de 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. 70% of websites need less resources to load. Javascripts take 725.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 113.3 kB

Original 142.2 kB
After minification 140.5 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. 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 113.3 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 214.4 kB
After minification 214.4 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. Spektrum images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 459.7 kB

Original 725.5 kB
After minification 725.5 kB
After compression 265.8 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 459.7 kB or 63% of the original size.

CSS Optimization

-86%

Potential reduce by 497.1 kB

Original 579.3 kB
After minification 579.1 kB
After compression 82.2 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. Spektrum.de needs all CSS files to be minified and compressed as it can save up to 497.1 kB or 86% of the original size.

Requests Now

After Optimization

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Spektrum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.