Tools & Wizards About Us
cps.nbclearn.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

cps.nbclearn.com

NBC News Learn - YouTube

Page Load Speed

794 ms in total

First Response

55 ms

Resources Loaded

536 ms

Page Rendered

203 ms

cps.nbclearn.com screenshot

About Website

Visit cps.nbclearn.com now to see the best up-to-date Cps NBC Learn content for United States and also check out these interesting facts you probably never knew about cps.nbclearn.com

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Key Findings

We analyzed Cps.nbclearn.com page load time and found that the first response time was 55 ms and then it took 739 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

cps.nbclearn.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value15.1 s

0/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value4,880 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.03

100/100

15%

TTI (Time to Interactive)

Value20.4 s

2/100

10%

Network Requests Diagram

cps.nbclearn.com

55 ms

nbclearn.css

170 ms

components.css

181 ms

jquery-1.7.1.min.js

176 ms

jquery-ui-1.8.18.custom.min.js

206 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 8% of them (3 requests) were addressed to the original Cps.nbclearn.com, 87% (33 requests) were made to Static.nbclearn.com and 3% (1 request) were made to Icue.nbcunifiles.com. The less responsive or slowest element that took the longest time to load (255 ms) relates to the external source Static.nbclearn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 588.9 kB (67%)

Content Size

875.1 kB

After Optimization

286.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cps.nbclearn.com main page is 875.1 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. 40% of websites need less resources to load. Javascripts take 630.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 23.8 kB

  • Original 31.1 kB
  • After minification 27.9 kB
  • After compression 7.3 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 23.8 kB or 77% of the original size.

Image Optimization

-15%

Potential reduce by 22.8 kB

  • Original 151.7 kB
  • After minification 128.9 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, Cps NBC Learn needs image optimization as it can save up to 22.8 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-78%

Potential reduce by 489.1 kB

  • Original 630.7 kB
  • After minification 554.6 kB
  • After compression 141.7 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 489.1 kB or 78% of the original size.

CSS Optimization

-86%

Potential reduce by 53.2 kB

  • Original 61.6 kB
  • After minification 44.1 kB
  • After compression 8.4 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. Cps.nbclearn.com needs all CSS files to be minified and compressed as it can save up to 53.2 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (38%)

Requests Now

37

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cps NBC Learn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

cps.nbclearn.com

cps.nbclearn.com

55 ms

nbclearn.css

nbclearn.css

170 ms

components.css

components.css

181 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

176 ms

jquery-ui-1.8.18.custom.min.js

jquery-ui-1.8.18.custom.min.js

206 ms

jquery.validate.min.js

jquery.validate.min.js

147 ms

jquery.tools.tooltip.js

jquery.tools.tooltip.js

194 ms

jquery.form.js

jquery.form.js

193 ms

jquery.readonly.js

jquery.readonly.js

192 ms

jqModal.js

jqModal.js

194 ms

mashup_core.js

mashup_core.js

246 ms

validate_core.js

validate_core.js

240 ms

validate_form.js

validate_form.js

242 ms

jquery.url.packed.js

jquery.url.packed.js

242 ms

jquery.cycle.all.min.js

jquery.cycle.all.min.js

243 ms

swfobject.js

swfobject.js

255 ms

s_code.js

s_code.js

240 ms

nbclearn.js

nbclearn.js

243 ms

cps_logo_dark.jpg

cps_logo_dark.jpg

71 ms

banner_jfk.jpg

banner_jfk.jpg

55 ms

banner_egypt.jpg

banner_egypt.jpg

56 ms

banner_document.jpg

banner_document.jpg

77 ms

banner_bw.jpg

banner_bw.jpg

85 ms

banner_hockey.jpg

banner_hockey.jpg

55 ms

uofphoenix_short.jpg

uofphoenix_short.jpg

107 ms

nbc_news_logo.png

nbc_news_logo.png

73 ms

nbc_learn_k12_option.jpg

nbc_learn_k12_option.jpg

74 ms

nbc_learn_highered_option.jpg

nbc_learn_highered_option.jpg

83 ms

orangemedlrg.png

orangemedlrg.png

221 ms

border.jpg

border.jpg

71 ms

content_main_bg.gif

content_main_bg.gif

70 ms

orange_small_module.jpg

orange_small_module.jpg

82 ms

header.html

header.html

19 ms

footer.html

footer.html

33 ms

nbc_learn_logo.jpg

nbc_learn_logo.jpg

25 ms

dotted_line_vertical.gif

dotted_line_vertical.gif

22 ms

dotted_line_horizontal.gif

dotted_line_horizontal.gif

23 ms

s86950400045607

s86950400045607

45 ms

Accessibility Review

cps.nbclearn.com accessibility score

84

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[role]s are not contained by their required parent element

High

ARIA tooltip elements do not have accessible names.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Best Practices

cps.nbclearn.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

Missing source maps for large first-party JavaScript

SEO Factors

cps.nbclearn.com SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cps.nbclearn.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Cps.nbclearn.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

cps.nbclearn.com

Open Graph description is not detected on the main page of Cps NBC Learn. 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: