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escience.cas.org screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    74% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

escience.cas.org

Empowering Innovation & Scientific Discoveries | CAS

Page Load Speed

24.7 sec in total

First Response

2 sec

Resources Loaded

22.2 sec

Page Rendered

435 ms

escience.cas.org screenshot

About Website

Click here to check amazing Escience CAS content for China. Otherwise, check out these important facts you probably never knew about escience.cas.org

CAS provides solutions and services that help empower scientific discoveries. Learn how CAS can facilitate your research and drive innovation.

Visit escience.cas.org

Key Findings

We analyzed Escience.cas.org page load time and found that the first response time was 2 sec and then it took 22.6 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. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

escience.cas.org performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value780 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value19.7 s

2/100

10%

Network Requests Diagram

www.cas.org

2044 ms

style.css

120 ms

slideshow.css

80 ms

jshowoff.css

87 ms

jquery.min.js

184 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Escience.cas.org, 5% (3 requests) were made to Ajax.aspnetcdn.com and 3% (2 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source Cas.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 621.6 kB (50%)

Content Size

1.2 MB

After Optimization

611.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Escience.cas.org main page is 1.2 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. 45% of websites need less resources to load. Javascripts take 567.6 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 145.3 kB

  • Original 195.7 kB
  • After minification 191.2 kB
  • After compression 50.4 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 145.3 kB or 74% of the original size.

Image Optimization

-8%

Potential reduce by 28.9 kB

  • Original 361.3 kB
  • After minification 332.4 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. Escience CAS images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 359.5 kB

  • Original 567.6 kB
  • After minification 535.2 kB
  • After compression 208.1 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 359.5 kB or 63% of the original size.

CSS Optimization

-81%

Potential reduce by 87.9 kB

  • Original 108.0 kB
  • After minification 85.7 kB
  • After compression 20.1 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. Escience.cas.org needs all CSS files to be minified and compressed as it can save up to 87.9 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (57%)

Requests Now

56

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Escience CAS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.cas.org

www.cas.org

2044 ms

style.css

style.css

120 ms

slideshow.css

slideshow.css

80 ms

jshowoff.css

jshowoff.css

87 ms

jquery.min.js

jquery.min.js

184 ms

jquery-ui.min.js

jquery-ui.min.js

217 ms

CustomTrackingScript.js

CustomTrackingScript.js

108 ms

core.js

core.js

106 ms

cycle_all_min.js

cycle_all_min.js

107 ms

jquery_twitter.js

jquery_twitter.js

113 ms

slideshow.js

slideshow.js

132 ms

jquery-cycle.js

jquery-cycle.js

135 ms

jquery-jshowoff.js

jquery-jshowoff.js

134 ms

addthis_widget.js

addthis_widget.js

167 ms

WebForms.js

WebForms.js

123 ms

MicrosoftAjax.js

MicrosoftAjax.js

164 ms

MicrosoftAjaxWebForms.js

MicrosoftAjaxWebForms.js

178 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

114 ms

equalizecols.js

equalizecols.js

121 ms

slideshow.js

slideshow.js

139 ms

styles.css

styles.css

174 ms

slideshow.css

slideshow.css

139 ms

Basepage.js

Basepage.js

35 ms

print.css

print.css

36 ms

border_200.jpg

border_200.jpg

128 ms

Logo.gif

Logo.gif

127 ms

logo_print.png

logo_print.png

123 ms

cas-website-banner_nologo_final.jpg

cas-website-banner_nologo_final.jpg

124 ms

cas_pic_web-carousel-image-new-branding_0116_final.jpg

cas_pic_web-carousel-image-new-branding_0116_final.jpg

123 ms

learnmore.png

learnmore.png

123 ms

methodsnow_0216_final.jpg

methodsnow_0216_final.jpg

127 ms

learnMOre-btn.png

learnMOre-btn.png

126 ms

PatentPak_combined_slider.jpg

PatentPak_combined_slider.jpg

127 ms

cas_future-leaders_carousel.jpg

cas_future-leaders_carousel.jpg

546 ms

cen_pic_web_carousel_image_0216-1-.jpg

cen_pic_web_carousel_image_0216-1-.jpg

352 ms

homepage_researchers_031016_1.png

homepage_researchers_031016_1.png

19935 ms

patentpak_homepage.png

patentpak_homepage.png

175 ms

homepage_patentexperts_new10.png

homepage_patentexperts_new10.png

19934 ms

STN-homepage-Hexagons-4a.png

STN-homepage-Hexagons-4a.png

267 ms

gtm.js

gtm.js

121 ms

analytics.js

analytics.js

137 ms

home-bg-new.png

home-bg-new.png

132 ms

down_arrow.gif

down_arrow.gif

162 ms

searchbox_bgLt.gif

searchbox_bgLt.gif

172 ms

go_button.png

go_button.png

203 ms

searchbox_bgRt.gif

searchbox_bgRt.gif

216 ms

searchbox_bgLt.png

searchbox_bgLt.png

218 ms

searchbox_bgRt.png

searchbox_bgRt.png

269 ms

cas-botom-link.gif

cas-botom-link.gif

286 ms

left_body_border.jpg

left_body_border.jpg

248 ms

right_body_border.jpg

right_body_border.jpg

318 ms

content_background2.jpg

content_background2.jpg

318 ms

right_column_gradient.gif

right_column_gradient.gif

324 ms

regcounter70.jpg

regcounter70.jpg

352 ms

rss_icon.gif

rss_icon.gif

296 ms

arrow_blue_right.png

arrow_blue_right.png

299 ms

socialmedia-icons1.gif

socialmedia-icons1.gif

312 ms

homeBnrpagi.png

homeBnrpagi.png

346 ms

collect

collect

46 ms

customerror

customerror

178 ms

Accessibility Review

escience.cas.org accessibility score

81

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA IDs are not unique

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

escience.cas.org best practices score

83

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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

escience.cas.org SEO score

79

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

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Escience.cas.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Escience.cas.org 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

escience.cas.org

Open Graph description is not detected on the main page of Escience CAS. 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: