Tools & Wizards About Us
conceptsinchemistry.com screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    56% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

conceptsinchemistry.com

Concepts in Chemistry - A Fully Integrated Learning Program

Page Load Speed

1.3 sec in total

First Response

161 ms

Resources Loaded

1000 ms

Page Rendered

135 ms

conceptsinchemistry.com screenshot

About Website

Visit conceptsinchemistry.com now to see the best up-to-date Concepts In Chemistry content for Canada and also check out these interesting facts you probably never knew about conceptsinchemistry.com

Concepts in Chemistry is a complete, focused and integrated first-year chemistry program designed to provide students with the resources they need to succeed.  The program focuses on delivering the fu...

Visit conceptsinchemistry.com

Key Findings

We analyzed Conceptsinchemistry.com page load time and found that the first response time was 161 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

conceptsinchemistry.com performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value1,200 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.1

90/100

15%

TTI (Time to Interactive)

Value16.8 s

5/100

10%

Network Requests Diagram

conceptsinchemistry.com

161 ms

conceptsinchemistry

142 ms

conceptsinchemistry

40 ms

cic.html

16 ms

jquery-ui.lt_39f0d37a60fbd501f32c59f84fd34f75.min.css

50 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Conceptsinchemistry.com, 55% (23 requests) were made to Cdn.dal.ca and 21% (9 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (476 ms) relates to the external source Cdn.dal.ca.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.8 kB (4%)

Content Size

626.7 kB

After Optimization

601.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Conceptsinchemistry.com main page is 626.7 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. 45% of websites need less resources to load. Images take 411.8 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 15.0 kB

  • Original 20.4 kB
  • After minification 18.9 kB
  • After compression 5.4 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 15.0 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 6.4 kB

  • Original 411.8 kB
  • After minification 405.4 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. Concepts In Chemistry images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 716 B

  • Original 119.8 kB
  • After minification 119.8 kB
  • After compression 119.1 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

-4%

Potential reduce by 2.7 kB

  • Original 74.7 kB
  • After minification 74.7 kB
  • After compression 72.0 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. Conceptsinchemistry.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (81%)

Requests Now

27

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Concepts In Chemistry. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

conceptsinchemistry.com

conceptsinchemistry.com

161 ms

conceptsinchemistry

conceptsinchemistry

142 ms

conceptsinchemistry

conceptsinchemistry

40 ms

cic.html

cic.html

16 ms

jquery-ui.lt_39f0d37a60fbd501f32c59f84fd34f75.min.css

jquery-ui.lt_39f0d37a60fbd501f32c59f84fd34f75.min.css

50 ms

jquery-ui.lt_d15c3c2fe8bb0b57e2fd329b0ba8ab7c.min.css

jquery-ui.lt_d15c3c2fe8bb0b57e2fd329b0ba8ab7c.min.css

52 ms

selectNav.lt_5135b360db8e63ccf56b2a5b98325d90.min.css

selectNav.lt_5135b360db8e63ccf56b2a5b98325d90.min.css

57 ms

default.lt_5ce397d8bfe757edea0c51d829d9635f.min.css

default.lt_5ce397d8bfe757edea0c51d829d9635f.min.css

54 ms

jquery.lt_1fc733054ddb2e2fcd4a0f763671047b.min.js

jquery.lt_1fc733054ddb2e2fcd4a0f763671047b.min.js

59 ms

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72 ms

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55 ms

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selectNav.lt_84c84a606a4e81f8b597406bf7043c5d.min.js

57 ms

purl.lt_53badcd063ce67004f6c8ed95110a740.min.js

purl.lt_53badcd063ce67004f6c8ed95110a740.min.js

58 ms

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default.lt_41cfd59d5a7becfcdec68fdaf716a9df.min.js

70 ms

default-theme.lt_d2a466252c6d5b7b09cad65e9e909f9f.min.css

default-theme.lt_d2a466252c6d5b7b09cad65e9e909f9f.min.css

68 ms

css2

css2

42 ms

all.min.css

all.min.css

40 ms

generic-theme.lt_abbe294ca14c423947830d99198d571e.min.css

generic-theme.lt_abbe294ca14c423947830d99198d571e.min.css

68 ms

CoveoFullSearch.css

CoveoFullSearch.css

41 ms

search.lt_d2e93737dab78901c65e0c8448af0f42.min.css

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68 ms

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69 ms

clientlibs.lt_46bd1424ade08286c64f45ae06759fc3.min.css

clientlibs.lt_46bd1424ade08286c64f45ae06759fc3.min.css

70 ms

adaptiveImages.lt_255c26b17911c49aa9cebe541dfa21b7.min.js

adaptiveImages.lt_255c26b17911c49aa9cebe541dfa21b7.min.js

69 ms

accessibility.lt_7f64d7918e126c44b6d7cafa10b85ef1.min.css

accessibility.lt_7f64d7918e126c44b6d7cafa10b85ef1.min.css

168 ms

containerTwoColumn.lt_9fd0a600fa39094b6454080eef4e9114.min.css

containerTwoColumn.lt_9fd0a600fa39094b6454080eef4e9114.min.css

70 ms

footerClientLib.lt_478d088086840a1bc1d76de662a1ef10.min.css

footerClientLib.lt_478d088086840a1bc1d76de662a1ef10.min.css

167 ms

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feedback.lt_0da98b229a26e86d440689f37bf4b53d.min.css

168 ms

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174 ms

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149 ms

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476 ms

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10 ms

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35 ms

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16 ms

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30 ms

Accessibility Review

conceptsinchemistry.com accessibility score

100

Accessibility Issues

Best Practices

conceptsinchemistry.com best practices score

67

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

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

conceptsinchemistry.com 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 Conceptsinchemistry.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 Conceptsinchemistry.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

conceptsinchemistry.com

Open Graph description is not detected on the main page of Concepts In Chemistry. 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: