Tools & Wizards About Us
sciencegateway.org screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

sciencegateway.org

Science Gateway

Page Load Speed

556 ms in total

First Response

13 ms

Resources Loaded

380 ms

Page Rendered

163 ms

sciencegateway.org screenshot

About Website

Click here to check amazing Science Gateway content for United States. Otherwise, check out these important facts you probably never knew about sciencegateway.org

Science Gateway - Web site for biomedical research with pubmed search, journals, textbooks, database

Visit sciencegateway.org

Key Findings

We analyzed Sciencegateway.org page load time and found that the first response time was 13 ms and then it took 543 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

sciencegateway.org performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.147

77/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

sciencegateway.org

13 ms

www.sciencegateway.org

107 ms

style.css

6 ms

spacer.gif

28 ms

sg_logo.gif

28 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 82% of them (9 requests) were addressed to the original Sciencegateway.org, 18% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (108 ms) relates to the external source Pagead2.googlesyndication.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 66.7 kB (43%)

Content Size

154.1 kB

After Optimization

87.3 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Sciencegateway.org main page is 154.1 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. Only 10% of websites need less resources to load. Javascripts take 78.0 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 66.6 kB

  • Original 74.9 kB
  • After minification 48.9 kB
  • After compression 8.3 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. This page needs HTML code to be minified as it can gain 26.1 kB, which is 35% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 66.6 kB or 89% of the original size.

JavaScript Optimization

-0%

Potential reduce by 43 B

  • Original 78.0 kB
  • After minification 78.0 kB
  • After compression 78.0 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 114 B

  • Original 1.1 kB
  • After minification 1.1 kB
  • After compression 1.0 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. Sciencegateway.org has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Gateway. According to our analytics all requests are already optimized.

Network Requests Diagram

sciencegateway.org

sciencegateway.org

13 ms

www.sciencegateway.org

www.sciencegateway.org

107 ms

style.css

style.css

6 ms

spacer.gif

spacer.gif

28 ms

sg_logo.gif

sg_logo.gif

28 ms

show_ads.js

show_ads.js

67 ms

spacer(2).gif

spacer(2).gif

6 ms

spacer(1).gif

spacer(1).gif

5 ms

spacer_grey.gif

spacer_grey.gif

6 ms

sg_footer_22_black.gif

sg_footer_22_black.gif

12 ms

adsbygoogle.js

adsbygoogle.js

108 ms

Accessibility Review

sciencegateway.org accessibility score

69

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Form elements do not have associated labels

Best Practices

sciencegateway.org best practices score

50

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

sciencegateway.org SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sciencegateway.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 Sciencegateway.org main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

sciencegateway.org

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