Access www3.epa.gov. U.S. Environmental Protection Agency

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value1,110 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.136

80/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

www3.epa.gov

246 ms

www.epa.gov

97 ms

ajax-progress.module.css

10 ms

autocomplete-loading.module.css

14 ms

js.module.css

14 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Www3.epa.gov, 97% (75 requests) were made to Epa.gov and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (567 ms) relates to the external source Googletagmanager.com.

Content Size

1.4 MB

After Optimization

1.2 MB

In fact, the total size of Www3.epa.gov main page is 1.4 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. 80% 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 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 58.2 kB

Original 75.3 kB
After minification 69.6 kB
After compression 17.1 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 58.2 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 53.5 kB

Original 1.1 MB
After minification 1.1 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. Www 3 EPA images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 10.6 kB

Original 145.5 kB
After minification 143.6 kB
After compression 134.9 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

-96%

Potential reduce by 96.0 kB

Original 99.9 kB
After minification 6.5 kB
After compression 4.0 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. Www3.epa.gov needs all CSS files to be minified and compressed as it can save up to 96.0 kB or 96% of the original size.

Requests Now

After Optimization

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Www 3 EPA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.