Report Summary

  • 38

    Performance

    Renders faster than
    58% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

scienceworld.ca

Today - Science World

Page Load Speed

4 sec in total

First Response

440 ms

Resources Loaded

2.9 sec

Page Rendered

657 ms

scienceworld.ca screenshot

About Website

Welcome to scienceworld.ca homepage info - get ready to check Science World best content for United States right away, or after learning these important things about scienceworld.ca

Visit scienceworld.ca

Key Findings

We analyzed Scienceworld.ca page load time and found that the first response time was 440 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

scienceworld.ca performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value13.5 s

0/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

Network Requests Diagram

scienceworld.ca

440 ms

css

66 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

380 ms

css_x4lEePb5kDKiWDImd7Ho6Qa5Rcqc0dJW68A4ghUZjy4.css

382 ms

css_dkGnRZeg3nvxig3_Tj1WHItGtX0vVMF09KEMFb7m4VY.css

390 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 57% of them (47 requests) were addressed to the original Scienceworld.ca, 10% (8 requests) were made to Tradablebits.com and 10% (8 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Scienceworld.ca.

Page Optimization Overview & Recommendations

Page size can be reduced by 728.9 kB (31%)

Content Size

2.4 MB

After Optimization

1.6 MB

In fact, the total size of Scienceworld.ca main page is 2.4 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. 60% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 94.0 kB

  • Original 117.9 kB
  • After minification 117.7 kB
  • After compression 23.9 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. 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 94.0 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 32.3 kB

  • Original 1.4 MB
  • After minification 1.3 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. Science World images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 355.2 kB

  • Original 577.2 kB
  • After minification 552.6 kB
  • After compression 222.0 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 355.2 kB or 62% of the original size.

CSS Optimization

-83%

Potential reduce by 247.5 kB

  • Original 298.1 kB
  • After minification 283.4 kB
  • After compression 50.6 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. Scienceworld.ca needs all CSS files to be minified and compressed as it can save up to 247.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (54%)

Requests Now

72

After Optimization

33

The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science World. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

scienceworld.ca accessibility score

86

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

scienceworld.ca best practices score

92

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

SEO Factors

scienceworld.ca SEO score

92

Search Engine Optimization Advices

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

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 Scienceworld.ca 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 Scienceworld.ca 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 Science World. 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: