Tools & Wizards About Us
science20.com screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

science20.com

Science 2.0 | ® The world's best scientists, the Internet's smartest readers.

Page Load Speed

44.4 sec in total

First Response

331 ms

Resources Loaded

33.2 sec

Page Rendered

10.9 sec

science20.com screenshot

About Website

Click here to check amazing Science 20 content for United States. Otherwise, check out these important facts you probably never knew about science20.com

The world's best scientists. The internet's smartest readers.

Visit science20.com

Key Findings

We analyzed Science20.com page load time and found that the first response time was 331 ms and then it took 44.1 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

science20.com performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value6.2 s

44/100

10%

TBT (Total Blocking Time)

Value1,310 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

science20.com

331 ms

www.science20.com

309 ms

css_dcd443b8e6cd6519ef00be7f99437743.css

267 ms

js_3fcee1d6a4a2f79348781c09d4f6ffcb.js

385 ms

counter.js

118 ms

Our browser made a total of 109 requests to load all elements on the main page. We found that 34% of them (37 requests) were addressed to the original Science20.com, 5% (5 requests) were made to Match.adsrvr.org and 5% (5 requests) were made to Dsum.casalemedia.com. The less responsive or slowest element that took the longest time to load (9.5 sec) belongs to the original domain Science20.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (62%)

Content Size

1.9 MB

After Optimization

748.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Science20.com main page is 1.9 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. 65% of websites need less resources to load. Javascripts take 875.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 57.1 kB

  • Original 77.1 kB
  • After minification 73.5 kB
  • After compression 20.0 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 57.1 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 6.5 kB

  • Original 326.1 kB
  • After minification 319.6 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. Science 20 images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 586.3 kB

  • Original 875.3 kB
  • After minification 797.1 kB
  • After compression 289.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 586.3 kB or 67% of the original size.

CSS Optimization

-82%

Potential reduce by 549.2 kB

  • Original 669.3 kB
  • After minification 665.1 kB
  • After compression 120.0 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. Science20.com needs all CSS files to be minified and compressed as it can save up to 549.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 59 (66%)

Requests Now

89

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science 20. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

science20.com

science20.com

331 ms

www.science20.com

www.science20.com

309 ms

css_dcd443b8e6cd6519ef00be7f99437743.css

css_dcd443b8e6cd6519ef00be7f99437743.css

267 ms

js_3fcee1d6a4a2f79348781c09d4f6ffcb.js

js_3fcee1d6a4a2f79348781c09d4f6ffcb.js

385 ms

counter.js

counter.js

118 ms

t.php

t.php

405 ms

ga.js

ga.js

337 ms

mask.png

mask.png

307 ms

header-bg.jpg

header-bg.jpg

316 ms

sb-logo.png

sb-logo.png

317 ms

newl-sm.png

newl-sm.png

313 ms

feed.png

feed.png

313 ms

physicalsciences.jpg

physicalsciences.jpg

312 ms

earthsciences.jpg

earthsciences.jpg

1497 ms

lifesciences.jpg

lifesciences.jpg

1673 ms

medicine.jpg

medicine.jpg

1528 ms

socialsciences.jpg

socialsciences.jpg

446 ms

culture.jpg

culture.jpg

430 ms

ACSH.JPG

ACSH.JPG

431 ms

sc300.png

sc300.png

431 ms

7.jpg

7.jpg

430 ms

21855.jpg

21855.jpg

431 ms

no_avatar.gif

no_avatar.gif

492 ms

uat_34759.js

uat_34759.js

970 ms

__utm.gif

__utm.gif

101 ms

adserv_34759.js

adserv_34759.js

488 ms

generic

generic

155 ms

usermatch

usermatch

178 ms

idSync

idSync

276 ms

technorati-tech_tag.js

technorati-tech_tag.js

502 ms

generic

generic

218 ms

bounce

bounce

417 ms

usermatch

usermatch

277 ms

1219 ms

casale

casale

1218 ms

pixel

pixel

1219 ms

casale

casale

1218 ms

usermatchredir

usermatchredir

1252 ms

ttj

ttj

1241 ms

search.js

search.js

998 ms

r.js

r.js

734 ms

crum

crum

961 ms

pixel

pixel

1259 ms

Wa7_rdHM41cAADzEP-wAAAFIAnsAAAIB

Wa7_rdHM41cAADzEP-wAAAFIAnsAAAIB

880 ms

crum

crum

1266 ms

cfcm.ashx

cfcm.ashx

1294 ms

net.php

net.php

1235 ms

search.js

search.js

1229 ms

crum

crum

993 ms

crum

crum

802 ms

vj

vj

666 ms

generic

generic

794 ms

pixel

pixel

793 ms

default

default

655 ms

pixel

pixel

966 ms

usersync

usersync

613 ms

1

1

717 ms

47154.gif

47154.gif

541 ms

exelate_sync.xgi

exelate_sync.xgi

530 ms

rum

rum

706 ms

pixel.gif

pixel.gif

685 ms

pixel.gif

pixel.gif

255 ms

fpi.js

fpi.js

203 ms

google

google

1751 ms

sync

sync

800 ms

quant.js

quant.js

1451 ms

tap.php

tap.php

715 ms

async_usersync.html

async_usersync.html

1347 ms

house.png

house.png

1141 ms

comments.png

comments.png

1058 ms

group.png

group.png

998 ms

rss-news.png

rss-news.png

999 ms

rss-e-top.png

rss-e-top.png

998 ms

rss-e-mid.png

rss-e-mid.png

988 ms

rss-e-bot.png

rss-e-bot.png

986 ms

nav-bg.png

nav-bg.png

983 ms

adcfg

adcfg

393 ms

addelivery

addelivery

1225 ms

honeybees_2017.jpg

honeybees_2017.jpg

559 ms

jhVPkYBxHD0

jhVPkYBxHD0

1497 ms

black-trans-70.png

black-trans-70.png

432 ms

cat-header-bg.png

cat-header-bg.png

433 ms

bullet-blue.png

bullet-blue.png

432 ms

bg-wht-75.png

bg-wht-75.png

1678 ms

sidebar-header-bg.png

sidebar-header-bg.png

1123 ms

footer-bg.png

footer-bg.png

1375 ms

getjs.aspx

getjs.aspx

887 ms

rules-p-59TntzuqummDw.js

rules-p-59TntzuqummDw.js

809 ms

pixel

pixel

820 ms

contextweb

contextweb

771 ms

getjs.static.js

getjs.static.js

831 ms

www-player-vflMqr8uC.css

www-player-vflMqr8uC.css

755 ms

www-embed-player.js

www-embed-player.js

1985 ms

base.js

base.js

5338 ms

pixel;r=1355257627;labels=RhythmImpact.Display.Science%2CCampaign.25954;rf=0;a=p-59TntzuqummDw;url=http%3A%2F%2Fwww.science20.com%2F;fpan=1;fpa=P0-1788039847-1504640952541;ns=0;ce=1;cm=;ref=;je=0;sr=1024x768x32;enc=n;dst=0;et=1504640952541;tzo=-180;ogl=site_name.Science%202%252E0%2Ctype.website%2Curl.http%3A%2F%2Fwww%252Escience20%252Ecom%2F

pixel;r=1355257627;labels=RhythmImpact.Display.Science%2CCampaign.25954;rf=0;a=p-59TntzuqummDw;url=http%3A%2F%2Fwww.science20.com%2F;fpan=1;fpa=P0-1788039847-1504640952541;ns=0;ce=1;cm=;ref=;je=0;sr=1024x768x32;enc=n;dst=0;et=1504640952541;tzo=-180;ogl=site_name.Science%202%252E0%2Ctype.website%2Curl.http%3A%2F%2Fwww%252Escience20%252Ecom%2F

7765 ms

loading_animation.gif

loading_animation.gif

6930 ms

controls.png

controls.png

9538 ms

GetAd.aspx

GetAd.aspx

9139 ms

id

id

6223 ms

8K3Zg6NpZGSge3qWJUIO0OW0x1SCW4IXoAiImY1mvc4.js

8K3Zg6NpZGSge3qWJUIO0OW0x1SCW4IXoAiImY1mvc4.js

7081 ms

ad_status.js

ad_status.js

6990 ms

insight.min.js

insight.min.js

8570 ms

tags.js

tags.js

4538 ms

400066.gif

400066.gif

2339 ms

ibs:dpid=96678&dpuuid=5ImsBpR86EgF

ibs:dpid=96678&dpuuid=5ImsBpR86EgF

2119 ms

2UX7WLTfW3W8TclTUvlFyQ.woff

2UX7WLTfW3W8TclTUvlFyQ.woff

3755 ms

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

3725 ms

logo_ringo-vflOpz8ZI.png

logo_ringo-vflOpz8ZI.png

3645 ms

displayAd.js

displayAd.js

369 ms

Accessibility Review

science20.com accessibility score

93

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

Links do not have a discernible name

Best Practices

science20.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

science20.com SEO score

64

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

Links do not have descriptive text

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Science20.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 Science20.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

science20.com

Open Graph description is not detected on the main page of Science 20. 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: