Access si.edu. Smithsonian Institution

name

value

score

weighting

FCP (First Contentful Paint)

Value8.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value26.1 s

0/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.769

5/100

15%

TTI (Time to Interactive)

Value19.9 s

2/100

10%

www.si.edu

59 ms

qfv0ytn.css

70 ms

css_V87EvcbNzzamTlwZWiBREpPElg0wJsrxoFPmRoQW0N0.css

20 ms

css_pj7BSPRlH83_S6dJuGZ0Rhy2mgZs89yYTxhVxVgpqV4.css

27 ms

css_wMB4yc4Z_tDXDTe18yXjHMZtz5M87ru2Mm5ckLU51_M.css

35 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 88% of them (91 requests) were addressed to the original Si.edu, 6% (6 requests) were made to Use.typekit.net and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (550 ms) belongs to the original domain Si.edu.

Content Size

9.4 MB

After Optimization

8.6 MB

In fact, the total size of Si.edu main page is 9.4 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 8.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 85.5 kB

Original 105.8 kB
After minification 102.0 kB
After compression 20.3 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 85.5 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 503.0 kB

Original 8.9 MB
After minification 8.3 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. Si images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 85.6 kB

Original 232.0 kB
After minification 220.1 kB
After compression 146.3 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 85.6 kB or 37% of the original size.

CSS Optimization

-41%

Potential reduce by 67.9 kB

Original 164.4 kB
After minification 164.4 kB
After compression 96.4 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. Si.edu needs all CSS files to be minified and compressed as it can save up to 67.9 kB or 41% of the original size.

Requests Now

After Optimization

The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 59 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.