Access updatecenter.norton.com. Norton Update Center

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

updatecenter.norton.com

15377 ms

om_code_min.js

7 ms

s_code_min.js

10 ms

Common.css

88 ms

headerAndFooter.css

77 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Updatecenter.norton.com, 67% (12 requests) were made to Static.nortoncdn.com and 11% (2 requests) were made to Nexus.ensighten.com. The less responsive or slowest element that took the longest time to load (15.4 sec) belongs to the original domain Updatecenter.norton.com.

Content Size

296.8 kB

After Optimization

109.4 kB

In fact, the total size of Updatecenter.norton.com main page is 296.8 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. Javascripts take 185.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 18.7 kB

Original 22.7 kB
After minification 13.8 kB
After compression 4.0 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. This page needs HTML code to be minified as it can gain 8.9 kB, which is 39% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 18.7 kB or 82% of the original size.

Image Optimization

-33%

Potential reduce by 19.3 kB

Original 58.4 kB
After minification 39.1 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, Update Center Norton needs image optimization as it can save up to 19.3 kB or 33% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 125.6 kB

Original 185.4 kB
After minification 183.9 kB
After compression 59.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 125.6 kB or 68% of the original size.

CSS Optimization

-79%

Potential reduce by 23.9 kB

Original 30.4 kB
After minification 24.6 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. Updatecenter.norton.com needs all CSS files to be minified and compressed as it can save up to 23.9 kB or 79% of the original size.

Requests Now

After Optimization

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Update Center Norton. 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 as a result speed up the page load time.