Access volcano.si.edu. Smithsonian Institution - Global Volcanism Program: Worldwide Holocene Volcano and Eruption Informat...

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value19.6 s

0/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value370 ms

70/100

30%

CLS (Cumulative Layout Shift)

Value0.21

59/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

volcano.si.edu

3376 ms

reset.css

4 ms

style.css

7 ms

grid_24.css

18 ms

grid_28.css

12 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 92% of them (36 requests) were addressed to the original Volcano.si.edu, 5% (2 requests) were made to Logs1.smithsonian.museum and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Volcano.si.edu.

Content Size

4.2 MB

After Optimization

4.0 MB

In fact, the total size of Volcano.si.edu main page is 4.2 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. Images take 4.0 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 18.6 kB

Original 24.1 kB
After minification 22.3 kB
After compression 5.5 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 18.6 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 95.6 kB

Original 4.0 MB
After minification 3.9 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. Volcano Si images are well optimized though.

JavaScript Optimization

-35%

Potential reduce by 23.1 kB

Original 66.2 kB
After minification 55.2 kB
After compression 43.0 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 23.1 kB or 35% of the original size.

CSS Optimization

-65%

Potential reduce by 29.9 kB

Original 45.8 kB
After minification 45.7 kB
After compression 15.9 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. Volcano.si.edu needs all CSS files to be minified and compressed as it can save up to 29.9 kB or 65% of the original size.

Requests Now

After Optimization

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Volcano Si. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.