Access smithsonian.org. Request Rejected

name

value

score

weighting

FCP (First Contentful Paint)

Value8.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value28.1 s

0/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value910 ms

31/100

30%

CLS (Cumulative Layout Shift)

Value0.45

20/100

15%

TTI (Time to Interactive)

Value22.6 s

1/100

10%

www.si.edu

596 ms

api.js

42 ms

qfv0ytn.css

27 ms

css_V87EvcbNzzamTlwZWiBREpPElg0wJsrxoFPmRoQW0N0.css

13 ms

css_Vo1u-0iwoIgfH3E4hP5NLExFGGKfoMDpP-lhkw_VA1I.css

19 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Smithsonian.org, 5% (6 requests) were made to Use.typekit.net and 4% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (596 ms) relates to the external source Si.edu.

Content Size

10.7 MB

After Optimization

8.9 MB

In fact, the total size of Smithsonian.org main page is 10.7 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. Only a small number of websites need less resources to load. Images take 10.0 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 91.3 kB

Original 114.4 kB
After minification 110.4 kB
After compression 23.1 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 91.3 kB or 80% of the original size.

Image Optimization

-16%

Potential reduce by 1.6 MB

Original 10.0 MB
After minification 8.4 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. Obviously, Smithsonian needs image optimization as it can save up to 1.6 MB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-21%

Potential reduce by 94.0 kB

Original 449.3 kB
After minification 437.3 kB
After compression 355.3 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 94.0 kB or 21% of the original size.

CSS Optimization

-41%

Potential reduce by 68.1 kB

Original 166.3 kB
After minification 166.3 kB
After compression 98.2 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. Smithsonian.org needs all CSS files to be minified and compressed as it can save up to 68.1 kB or 41% of the original size.

Requests Now

120

After Optimization

The browser has sent 120 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Smithsonian. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 72 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.