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chemdoodle3d.com screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

chemdoodle3d.com

ChemDoodle 3D | Molecular Modeling and Graphics Software

Page Load Speed

2.9 sec in total

First Response

43 ms

Resources Loaded

764 ms

Page Rendered

2.1 sec

chemdoodle3d.com screenshot

About Website

Welcome to chemdoodle3d.com homepage info - get ready to check Chem Doodle 3D best content right away, or after learning these important things about chemdoodle3d.com

Molecular modeling and graphics software for Windows, macOS and Linux. Affordable and used by thousands of scientists around the world. Free trial available for immediate download.

Visit chemdoodle3d.com

Key Findings

We analyzed Chemdoodle3d.com page load time and found that the first response time was 43 ms and then it took 2.9 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

chemdoodle3d.com performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value950 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value12.3 s

15/100

10%

Network Requests Diagram

chemdoodle3d.com

43 ms

www.chemdoodle3d.com

111 ms

191 ms

js

89 ms

stack-interface.css

26 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Chemdoodle3d.com, 88% (71 requests) were made to Chemdoodle.com and 7% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (231 ms) relates to the external source Chemdoodle.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 539.6 kB (7%)

Content Size

8.3 MB

After Optimization

7.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemdoodle3d.com main page is 8.3 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. Only a small number of websites need less resources to load. Images take 8.0 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 70.0 kB

  • Original 88.5 kB
  • After minification 84.8 kB
  • After compression 18.5 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 70.0 kB or 79% of the original size.

Image Optimization

-6%

Potential reduce by 455.9 kB

  • Original 8.0 MB
  • After minification 7.6 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. Chem Doodle 3D images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 7.3 kB

  • Original 83.1 kB
  • After minification 83.1 kB
  • After compression 75.8 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

-10%

Potential reduce by 6.4 kB

  • Original 65.7 kB
  • After minification 65.7 kB
  • After compression 59.3 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. Chemdoodle3d.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 15 (21%)

Requests Now

70

After Optimization

55

  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Doodle 3D. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chemdoodle3d.com

chemdoodle3d.com

43 ms

www.chemdoodle3d.com

www.chemdoodle3d.com

111 ms

191 ms

js

js

89 ms

stack-interface.css

stack-interface.css

26 ms

socicon.css

socicon.css

34 ms

iconsmind.css

iconsmind.css

50 ms

bootstrap.css

bootstrap.css

42 ms

lightbox.min.css

lightbox.min.css

41 ms

flickity.css

flickity.css

47 ms

theme.css

theme.css

55 ms

custom.css

custom.css

47 ms

css

css

48 ms

chemdoodle3d_logo.png

chemdoodle3d_logo.png

80 ms

video_splash.png

video_splash.png

107 ms

chemdoodle.png

chemdoodle.png

51 ms

graphics3d.jpg

graphics3d.jpg

110 ms

art2.jpg

art2.jpg

107 ms

modeling.png

modeling.png

112 ms

symmetry.jpg

symmetry.jpg

106 ms

stereochemistry3d.jpg

stereochemistry3d.jpg

209 ms

3dprinting.jpg

3dprinting.jpg

109 ms

smallmolecules.jpg

smallmolecules.jpg

111 ms

macro.jpg

macro.jpg

108 ms

periodic.jpg

periodic.jpg

126 ms

jquery-3.1.1.min.js

jquery-3.1.1.min.js

110 ms

flickity.min.js

flickity.min.js

124 ms

parallax.js

parallax.js

122 ms

isotope.min.js

isotope.min.js

199 ms

lightbox.min.js

lightbox.min.js

206 ms

smooth-scroll.min.js

smooth-scroll.min.js

208 ms

scripts.js

scripts.js

212 ms

stereoscopy.jpg

stereoscopy.jpg

210 ms

universality.jpg

universality.jpg

209 ms

windowsfullv7.jpg

windowsfullv7.jpg

227 ms

macfullv7.jpg

macfullv7.jpg

229 ms

linuxfullv7.jpg

linuxfullv7.jpg

228 ms

light_dark_mode.jpg

light_dark_mode.jpg

229 ms

working_with_protein.jpg

working_with_protein.jpg

229 ms

nanotube.jpg

nanotube.jpg

231 ms

protein_renders.jpg

protein_renders.jpg

230 ms

surfaces-1.jpg

surfaces-1.jpg

221 ms

measure.jpg

measure.jpg

213 ms

vsepr.jpg

vsepr.jpg

206 ms

3d_printed_models_chemdoodle3d.jpg

3d_printed_models_chemdoodle3d.jpg

201 ms

LTA.jpg

LTA.jpg

201 ms

sildenafil.jpg

sildenafil.jpg

201 ms

5GzC.jpg

5GzC.jpg

196 ms

1yti.jpg

1yti.jpg

196 ms

2ndo.jpg

2ndo.jpg

168 ms

3qdu.jpg

3qdu.jpg

166 ms

5f60.jpg

5f60.jpg

141 ms

cel_none_sketchy.jpg

cel_none_sketchy.jpg

140 ms

dof_on.jpg

dof_on.jpg

141 ms

outline_artistic_depth_thickness.jpg

outline_artistic_depth_thickness.jpg

139 ms

painting_bleed.jpg

painting_bleed.jpg

138 ms

painting_kuwahara.jpg

painting_kuwahara.jpg

139 ms

paxil_cartoon.jpg

paxil_cartoon.jpg

137 ms

realism_final_macro.jpg

realism_final_macro.jpg

138 ms

realism_final_smallmolecule.jpg

realism_final_smallmolecule.jpg

125 ms

realism_final_smallmolecule2.jpg

realism_final_smallmolecule2.jpg

125 ms

ssao_on_and_off.jpg

ssao_on_and_off.jpg

100 ms

cyclophane_wood.jpg

cyclophane_wood.jpg

95 ms

paxil_marbled.jpg

paxil_marbled.jpg

93 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

109 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

143 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjr0B4gaVc.ttf

179 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

178 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

178 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexQ.ttf

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexQ.ttf

178 ms

iconsmind.woff

iconsmind.woff

107 ms

socicon.ttf

socicon.ttf

103 ms

7ner_stripped.jpg

7ner_stripped.jpg

99 ms

stereo_perception_3d.jpg

stereo_perception_3d.jpg

100 ms

anaglyph.jpg

anaglyph.jpg

153 ms

orbitals4.jpg

orbitals4.jpg

120 ms

symmetry_news.jpg

symmetry_news.jpg

151 ms

style_sheet.jpg

style_sheet.jpg

150 ms

settings.jpg

settings.jpg

117 ms

chemdoodle3d.png

chemdoodle3d.png

149 ms

ichemlabs_logo.png

ichemlabs_logo.png

153 ms

Accessibility Review

chemdoodle3d.com accessibility score

64

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

chemdoodle3d.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

chemdoodle3d.com SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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 Chemdoodle3d.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 Chemdoodle3d.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

chemdoodle3d.com

Open Graph description is not detected on the main page of Chem Doodle 3D. 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: