Tools & Wizards About Us
center.edu screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

center.edu

Center for Innovation in Education - Dekodiphukan, Math Their Way and Math a Way of Thinking

Page Load Speed

1.1 sec in total

First Response

236 ms

Resources Loaded

753 ms

Page Rendered

119 ms

center.edu screenshot

About Website

Visit center.edu now to see the best up-to-date Center content for Canada and also check out these interesting facts you probably never knew about center.edu

The Center for Innovation in Education is a nonprofit educational organization founded in 1975. The Center creates innovative teaching materials in the areas of reading and mathematics for elementary ...

Visit center.edu

Key Findings

We analyzed Center.edu page load time and found that the first response time was 236 ms and then it took 872 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

center.edu performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

39/100

25%

SI (Speed Index)

Value1.0 s

100/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

center.edu

236 ms

js

79 ms

DekodiphukanPDF.jpg

134 ms

newweblogo_ps_lg.jpg

136 ms

teachingthewayxsm.gif

136 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 88% of them (7 requests) were addressed to the original Center.edu, 13% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (454 ms) belongs to the original domain Center.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 12.3 kB (4%)

Content Size

346.2 kB

After Optimization

333.9 kB

  • HTML
  • Images

In fact, the total size of Center.edu main page is 346.2 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. Only 10% of websites need less resources to load. Images take 337.6 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 5.8 kB

  • Original 8.5 kB
  • After minification 8.4 kB
  • After compression 2.7 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. 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 5.8 kB or 68% of the original size.

Image Optimization

-2%

Potential reduce by 6.4 kB

  • Original 337.6 kB
  • After minification 331.2 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. Center images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • Images
  • JavaScript

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Center. According to our analytics all requests are already optimized.

Network Requests Diagram

center.edu

center.edu

236 ms

js

js

79 ms

DekodiphukanPDF.jpg

DekodiphukanPDF.jpg

134 ms

newweblogo_ps_lg.jpg

newweblogo_ps_lg.jpg

136 ms

teachingthewayxsm.gif

teachingthewayxsm.gif

136 ms

ordericon2.jpg

ordericon2.jpg

141 ms

New-Home-2021-Newer.jpg

New-Home-2021-Newer.jpg

454 ms

clickHot.gif

clickHot.gif

64 ms

Accessibility Review

center.edu accessibility score

50

Accessibility Issues

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

center.edu best practices score

67

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

Serves images with low resolution

SEO Factors

center.edu SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Center.edu 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 Center.edu main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

center.edu

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