Tools & Wizards About Us
nelsonschoolcentral.com screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

nelsonschoolcentral.com

Digital Learning Tools & Print Resources for K-12 Educators in Canada | Nelson

Page Load Speed

2.9 sec in total

First Response

102 ms

Resources Loaded

2.3 sec

Page Rendered

487 ms

nelsonschoolcentral.com screenshot

About Website

Click here to check amazing Nelson Schoolcentral content for Canada. Otherwise, check out these important facts you probably never knew about nelsonschoolcentral.com

Workbooks, textbooks, teacher resources, kits, ebooks, webinars, and other digital learning tools across math, science, social studies, literacy, professional learning, and psychoeducational assessmen...

Visit nelsonschoolcentral.com

Key Findings

We analyzed Nelsonschoolcentral.com page load time and found that the first response time was 102 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 50% of websites can load faster.

Performance Metrics

nelsonschoolcentral.com performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value17.7 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.163

72/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

school.nelson.com

102 ms

school.nelson.com

478 ms

bootstrap.min.css

131 ms

animate.min.css

127 ms

icon

113 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Nelsonschoolcentral.com, 9% (5 requests) were made to School.nelson.com and 9% (5 requests) were made to Prodstore.nelsontechdev.com. The less responsive or slowest element that took the longest time to load (478 ms) relates to the external source School.nelson.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 410.5 kB (11%)

Content Size

3.9 MB

After Optimization

3.5 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Nelsonschoolcentral.com main page is 3.9 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 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 191.8 kB

  • Original 232.6 kB
  • After minification 183.9 kB
  • After compression 40.9 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 48.7 kB, which is 21% 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 191.8 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 3.3 MB
  • After minification 3.3 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. Nelson Schoolcentral images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 218.7 kB

  • Original 311.9 kB
  • After minification 217.3 kB
  • After compression 93.2 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 218.7 kB or 70% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (44%)

Requests Now

52

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nelson Schoolcentral. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

school.nelson.com

school.nelson.com

102 ms

school.nelson.com

school.nelson.com

478 ms

bootstrap.min.css

bootstrap.min.css

131 ms

animate.min.css

animate.min.css

127 ms

icon

icon

113 ms

theme-e010c660-70e8-013c-2fcd-2aee00577d63.css

theme-e010c660-70e8-013c-2fcd-2aee00577d63.css

140 ms

css

css

158 ms

modernizr-custom.js

modernizr-custom.js

140 ms

jquery.min.js

jquery.min.js

114 ms

59553136e35a1

59553136e35a1

256 ms

acp-magento.js

acp-magento.js

160 ms

google_analytics4-713b0679de97617cc4e76fe4e93785e694e91683.js

google_analytics4-713b0679de97617cc4e76fe4e93785e694e91683.js

156 ms

fast-simon-autocomplete-init.umd.js

fast-simon-autocomplete-init.umd.js

121 ms

index.js

index.js

156 ms

theme-bundle.js

theme-bundle.js

145 ms

csrf-protection-header-5eeddd5de78d98d146ef4fd71b2aedce4161903e.js

csrf-protection-header-5eeddd5de78d98d146ef4fd71b2aedce4161903e.js

142 ms

visitor_stencil.js

visitor_stencil.js

125 ms

css

css

21 ms

index

index

292 ms

index.php

index.php

405 ms

selectors

selectors

409 ms

gtm.js

gtm.js

295 ms

fbevents.js

fbevents.js

56 ms

nelson-logo_1691603694__09772.original.png

nelson-logo_1691603694__09772.original.png

48 ms

edwinheader.png

edwinheader.png

155 ms

web_banner_easycbm4__32524.png

web_banner_easycbm4__32524.png

274 ms

ready_to_teach_banner3-1.png

ready_to_teach_banner3-1.png

387 ms

my_math_path_1-8_student_workbooks__70793.png

my_math_path_1-8_student_workbooks__70793.png

274 ms

font

font

254 ms

font

font

367 ms

i9k7ehwwv9

i9k7ehwwv9

303 ms

cookie-notification

cookie-notification

246 ms

index.php

index.php

304 ms

1376348069362276

1376348069362276

140 ms

productRestriction

productRestriction

174 ms

product-edwin-hero-03.jpg

product-edwin-hero-03.jpg

159 ms

literacy-banner.jpg

literacy-banner.jpg

119 ms

math-3.jpg

math-3.jpg

159 ms

science.jpg

science.jpg

160 ms

social.jpg

social.jpg

161 ms

professional-learning-cover.png

professional-learning-cover.png

161 ms

underthesun.jpg

underthesun.jpg

155 ms

assessment-image.jpg

assessment-image.jpg

169 ms

analytics.js

analytics.js

72 ms

nobot

nobot

134 ms

cart.php

cart.php

360 ms

clarity.js

clarity.js

24 ms

collect

collect

58 ms

collect

collect

12 ms

collect

collect

97 ms

js

js

95 ms

pd.js

pd.js

51 ms

analytics

analytics

325 ms

c.gif

c.gif

7 ms

Accessibility Review

nelsonschoolcentral.com accessibility score

78

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-hidden="true"] elements contain focusable descendents

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

nelsonschoolcentral.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nelsonschoolcentral.com SEO score

75

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 doesn't use 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 Nelsonschoolcentral.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 Nelsonschoolcentral.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

nelsonschoolcentral.com

Open Graph description is not detected on the main page of Nelson Schoolcentral. 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: