Access cerf-notebook.com. CERF - Best ELN for Total Scientific Data Management

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

40/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.122

84/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

cerf-notebook.com

627 ms

style.min.css

133 ms

style.min.css

200 ms

style.min.css

275 ms

front.min.css

256 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that 93% of them (14 requests) were addressed to the original Cerf-notebook.com, 7% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (627 ms) belongs to the original domain Cerf-notebook.com.

Content Size

705.4 kB

After Optimization

488.7 kB

In fact, the total size of Cerf-notebook.com main page is 705.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 546.8 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 112.4 kB

Original 134.2 kB
After minification 132.7 kB
After compression 21.8 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 112.4 kB or 84% of the original size.

Image Optimization

-19%

Potential reduce by 104.2 kB

Original 546.8 kB
After minification 442.6 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, CERF Notebook needs image optimization as it can save up to 104.2 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 31 B

Original 17.8 kB
After minification 17.8 kB
After compression 17.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 58 B

Original 6.5 kB
After minification 6.5 kB
After compression 6.5 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. Cerf-notebook.com has all CSS files already compressed.

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After Optimization

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CERF Notebook. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.