Tools & Wizards About Us
nsc.org screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 74

    SEO

    Google-friendlier than
    31% of websites

nsc.org

National Safety Council - Save lives, from the workplace to anyplace

Page Load Speed

2.9 sec in total

First Response

70 ms

Resources Loaded

2.4 sec

Page Rendered

449 ms

nsc.org screenshot

About Website

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

The National Safety Council is America's leading nonprofit safety advocate. We focus on eliminating the leading causes of preventable injuries and deaths.

Visit nsc.org

Key Findings

We analyzed Nsc.org page load time and found that the first response time was 70 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

nsc.org performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value8,430 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.304

39/100

15%

TTI (Time to Interactive)

Value21.7 s

1/100

10%

Network Requests Diagram

nsc.org

70 ms

www.nsc.org

693 ms

nsc.style.d86edbed276f9b4baa59.css

30 ms

b85f2a5bf4.js

58 ms

polyfill.min.js

1019 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 20% of them (8 requests) were addressed to the original Nsc.org, 34% (14 requests) were made to Nsc-org-storage.azureedge.net and 15% (6 requests) were made to Nsccdn.azureedge.net. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Polyfill.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.2 kB (8%)

Content Size

959.6 kB

After Optimization

880.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nsc.org main page is 959.6 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. Images take 544.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 49.5 kB

  • Original 64.3 kB
  • After minification 64.2 kB
  • After compression 14.8 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 49.5 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 29.5 kB

  • Original 544.7 kB
  • After minification 515.2 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. Nsc images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 230 B

  • Original 251.7 kB
  • After minification 251.7 kB
  • After compression 251.4 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

-0%

Potential reduce by 0 B

  • Original 98.9 kB
  • After minification 98.9 kB
  • After compression 98.9 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. Nsc.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 13 (34%)

Requests Now

38

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nsc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nsc.org

nsc.org

70 ms

www.nsc.org

www.nsc.org

693 ms

nsc.style.d86edbed276f9b4baa59.css

nsc.style.d86edbed276f9b4baa59.css

30 ms

b85f2a5bf4.js

b85f2a5bf4.js

58 ms

polyfill.min.js

polyfill.min.js

1019 ms

marvel.js

marvel.js

38 ms

nsc.bundle.896ebb8773e86e22d8ba.js

nsc.bundle.896ebb8773e86e22d8ba.js

129 ms

nsc.bundle.896ebb8773e86e22d8ba.js.LICENSE.txt

nsc.bundle.896ebb8773e86e22d8ba.js.LICENSE.txt

172 ms

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

129 ms

nsc.style.d86edbed276f9b4baa59.css

nsc.style.d86edbed276f9b4baa59.css

47 ms

bat.js

bat.js

95 ms

gtm.js

gtm.js

158 ms

nsc-menu.png

nsc-menu.png

119 ms

spring-expo-1440x520.jpg

spring-expo-1440x520.jpg

213 ms

reputable_2.png

reputable_2.png

213 ms

reputable.png

reputable.png

309 ms

trustworthy.png

trustworthy.png

396 ms

nsm1000x520.jpg

nsm1000x520.jpg

475 ms

tools-inverse.svg

tools-inverse.svg

313 ms

courses-625x750-min-o.jpg

courses-625x750-min-o.jpg

475 ms

icon-sm-green-courses.png

icon-sm-green-courses.png

413 ms

lorraine_martin_2020_60x60.jpg

lorraine_martin_2020_60x60.jpg

413 ms

fleet-min-o.jpg

fleet-min-o.jpg

440 ms

survey600x430.jpg

survey600x430.jpg

503 ms

blog-icon.jpg

blog-icon.jpg

519 ms

s-h130.jpg

s-h130.jpg

526 ms

events-icon.jpg

events-icon.jpg

546 ms

board-image.jpg

board-image.jpg

556 ms

icon-facebook.svg

icon-facebook.svg

117 ms

icon-instagram.svg

icon-instagram.svg

143 ms

icon-linkedin.svg

icon-linkedin.svg

124 ms

icon-x.svg

icon-x.svg

126 ms

icon-youtube.svg

icon-youtube.svg

127 ms

21016146.js

21016146.js

12 ms

21016146

21016146

103 ms

main.js

main.js

24 ms

otSDKStub.js

otSDKStub.js

77 ms

0.7.32

0.7.32

37 ms

89bb7ef4-625e-401e-955d-0ee7d1524a4f.json

89bb7ef4-625e-401e-955d-0ee7d1524a4f.json

38 ms

location

location

43 ms

otBannerSdk.js

otBannerSdk.js

23 ms

Accessibility Review

nsc.org accessibility score

81

Accessibility Issues

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

nsc.org 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

nsc.org SEO score

74

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

High

Image elements do not have [alt] attributes

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 Nsc.org 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 Nsc.org 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

nsc.org

Open Graph data is detected on the main page of Nsc. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: