Tools & Wizards About Us
addictscience.com screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

addictscience.com

Addict Science | The Addict Experience Explained By the Science of Addiction

Page Load Speed

2.7 sec in total

First Response

179 ms

Resources Loaded

2.3 sec

Page Rendered

159 ms

addictscience.com screenshot

About Website

Visit addictscience.com now to see the best up-to-date Addict Science content for United States and also check out these interesting facts you probably never knew about addictscience.com

The mission of this website is to educate people about the addict experience and the addiction science that explains that experience.

Visit addictscience.com

Key Findings

We analyzed Addictscience.com page load time and found that the first response time was 179 ms and then it took 2.5 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

addictscience.com performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

Network Requests Diagram

addictscience.com

179 ms

www.addictscience.com

861 ms

jquery-1.5.2.min.js

178 ms

slides.min.jquery.js

190 ms

jquery.nyroModal.custom.js

248 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 80% of them (37 requests) were addressed to the original Addictscience.com, 4% (2 requests) were made to Google-analytics.com and 4% (2 requests) were made to Downloads.mailchimp.com. The less responsive or slowest element that took the longest time to load (861 ms) belongs to the original domain Addictscience.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 327.1 kB (35%)

Content Size

930.8 kB

After Optimization

603.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Addictscience.com main page is 930.8 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. 30% of websites need less resources to load. Images take 473.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 63.0 kB

  • Original 78.0 kB
  • After minification 75.7 kB
  • After compression 15.0 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 63.0 kB or 81% of the original size.

Image Optimization

-16%

Potential reduce by 75.5 kB

  • Original 473.9 kB
  • After minification 398.4 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. Obviously, Addict Science needs image optimization as it can save up to 75.5 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-50%

Potential reduce by 186.2 kB

  • Original 368.7 kB
  • After minification 368.7 kB
  • After compression 182.6 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 186.2 kB or 50% of the original size.

CSS Optimization

-24%

Potential reduce by 2.5 kB

  • Original 10.3 kB
  • After minification 10.3 kB
  • After compression 7.8 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. Addictscience.com needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (40%)

Requests Now

35

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Addict Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

addictscience.com

addictscience.com

179 ms

www.addictscience.com

www.addictscience.com

861 ms

jquery-1.5.2.min.js

jquery-1.5.2.min.js

178 ms

slides.min.jquery.js

slides.min.jquery.js

190 ms

jquery.nyroModal.custom.js

jquery.nyroModal.custom.js

248 ms

main.js

main.js

191 ms

style.min.css

style.min.css

192 ms

frontend.min.css

frontend.min.css

191 ms

addthis_wordpress_public.min.css

addthis_wordpress_public.min.css

242 ms

addthis_widget.js

addthis_widget.js

209 ms

js

js

44 ms

style.css

style.css

241 ms

classic-081711.css

classic-081711.css

28 ms

ga.js

ga.js

128 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

118 ms

body_inner.gif

body_inner.gif

100 ms

bg.png

bg.png

315 ms

menu_shadow.png

menu_shadow.png

96 ms

menu_dot.png

menu_dot.png

97 ms

logo.png

logo.png

145 ms

search.png

search.png

148 ms

search.gif

search.gif

148 ms

topic_dot.png

topic_dot.png

150 ms

submenu.png

submenu.png

162 ms

content_bg.png

content_bg.png

206 ms

iStock_91830855_XXXLARGE-300x200.jpg

iStock_91830855_XXXLARGE-300x200.jpg

142 ms

im11.jpg

im11.jpg

143 ms

iStock_000013130888XSmall1.jpg

iStock_000013130888XSmall1.jpg

144 ms

iStock_000017634491Small-202x300.jpg

iStock_000017634491Small-202x300.jpg

145 ms

gravestone-150x150.jpg

gravestone-150x150.jpg

148 ms

iStock_000003937765XSmall-198x300.jpg

iStock_000003937765XSmall-198x300.jpg

145 ms

Heath-Ledger-198x300.jpg

Heath-Ledger-198x300.jpg

201 ms

im2.jpg

im2.jpg

203 ms

analytics.js

analytics.js

39 ms

collect

collect

18 ms

js

js

65 ms

iStock_91830855_XXXLARGE-300x200.jpg

iStock_91830855_XXXLARGE-300x200.jpg

187 ms

im11.jpg

im11.jpg

69 ms

iStock_000013130888XSmall1.jpg

iStock_000013130888XSmall1.jpg

186 ms

iStock_000017634491Small-202x300.jpg

iStock_000017634491Small-202x300.jpg

80 ms

iStock_000003937765XSmall-198x300.jpg

iStock_000003937765XSmall-198x300.jpg

128 ms

gravestone-150x150.jpg

gravestone-150x150.jpg

137 ms

Heath-Ledger-198x300.jpg

Heath-Ledger-198x300.jpg

87 ms

im2.jpg

im2.jpg

134 ms

jquery.form-n-validate.js

jquery.form-n-validate.js

12 ms

jquery.form-n-validate.js

jquery.form-n-validate.js

14 ms

Accessibility Review

addictscience.com accessibility score

66

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

addictscience.com best practices score

50

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

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

addictscience.com SEO score

71

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

Image elements do not have [alt] attributes

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 Addictscience.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 Addictscience.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

addictscience.com

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