Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

nbcuniversal.com

Home | NBCUNIVERSAL MEDIA

Page Load Speed

2.4 sec in total

First Response

176 ms

Resources Loaded

1 sec

Page Rendered

1.2 sec

nbcuniversal.com screenshot

About Website

Welcome to nbcuniversal.com homepage info - get ready to check NBCUNIVERSAL best content for United States right away, or after learning these important things about nbcuniversal.com

We are one of the world’s leading media and entertainment companies in the development, production, and marketing of entertainment, news and information to a

Visit nbcuniversal.com

Key Findings

We analyzed Nbcuniversal.com page load time and found that the first response time was 176 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

nbcuniversal.com performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value22.6 s

0/100

25%

SI (Speed Index)

Value5.3 s

59/100

10%

TBT (Total Blocking Time)

Value390 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.2 s

41/100

10%

Network Requests Diagram

www.nbcuniversal.com

176 ms

js

92 ms

datadog-rum.js

62 ms

printfriendly.js

68 ms

ajax-progress.module.css

49 ms

Our browser made a total of 135 requests to load all elements on the main page. We found that 41% of them (56 requests) were addressed to the original Nbcuniversal.com, 54% (73 requests) were made to Cdn2.nbcuni.com and 1% (2 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (548 ms) relates to the external source Cdn2.nbcuni.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.4 MB (17%)

Content Size

19.7 MB

After Optimization

16.3 MB

In fact, the total size of Nbcuniversal.com main page is 19.7 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 19.3 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 127.2 kB

  • Original 144.8 kB
  • After minification 100.4 kB
  • After compression 17.7 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 44.4 kB, which is 31% 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 127.2 kB or 88% of the original size.

Image Optimization

-17%

Potential reduce by 3.3 MB

  • Original 19.3 MB
  • After minification 16.0 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, NBCUNIVERSAL needs image optimization as it can save up to 3.3 MB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 2.3 kB

  • Original 129.7 kB
  • After minification 129.7 kB
  • After compression 127.4 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

-3%

Potential reduce by 2.9 kB

  • Original 87.8 kB
  • After minification 86.8 kB
  • After compression 85.0 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. Nbcuniversal.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 51 (39%)

Requests Now

130

After Optimization

79

The browser has sent 130 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NBCUNIVERSAL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nbcuniversal.com accessibility score

100

Accessibility Issues

Best Practices

nbcuniversal.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nbcuniversal.com SEO score

85

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nbcuniversal.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Nbcuniversal.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of NBCUNIVERSAL. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: