Tools & Wizards About Us
sciencepubs.org screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

sciencepubs.org

Science | AAAS

Page Load Speed

3.3 sec in total

First Response

155 ms

Resources Loaded

2.5 sec

Page Rendered

649 ms

sciencepubs.org screenshot

About Website

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

Visit sciencepubs.org

Key Findings

We analyzed Sciencepubs.org page load time and found that the first response time was 155 ms and then it took 3.2 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

sciencepubs.org performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value27.8 s

0/100

25%

SI (Speed Index)

Value11.6 s

5/100

10%

TBT (Total Blocking Time)

Value4,760 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.077

95/100

15%

TTI (Time to Interactive)

Value27.2 s

0/100

10%

Network Requests Diagram

sciencepubs.org

155 ms

www.sciencemag.org

260 ms

satelliteLib-a9d46808a35b7b8034adfab1d8207407222304d5.js

40 ms

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152 ms

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169 ms

Our browser made a total of 170 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Sciencepubs.org, 45% (76 requests) were made to Sciencemag.org and 16% (27 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (926 ms) relates to the external source Sciencemag.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (34%)

Content Size

3.9 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sciencepubs.org main page is 3.9 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 136.0 kB

  • Original 168.3 kB
  • After minification 155.5 kB
  • After compression 32.4 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 136.0 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 36.2 kB

  • Original 2.2 MB
  • After minification 2.1 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. Science Pubs images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 762.9 kB

  • Original 1.1 MB
  • After minification 998.7 kB
  • After compression 293.4 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 762.9 kB or 72% of the original size.

CSS Optimization

-82%

Potential reduce by 378.8 kB

  • Original 463.2 kB
  • After minification 459.9 kB
  • After compression 84.3 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. Sciencepubs.org needs all CSS files to be minified and compressed as it can save up to 378.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 56 (36%)

Requests Now

154

After Optimization

98

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 154 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science Pubs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 41 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sciencepubs.org

sciencepubs.org

155 ms

www.sciencemag.org

www.sciencemag.org

260 ms

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jot

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fonts.css

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84 ms

Accessibility Review

sciencepubs.org accessibility score

75

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-*] attributes do not match their roles

High

[aria-*] attributes do not have valid values

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

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

sciencepubs.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

sciencepubs.org SEO score

85

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sciencepubs.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 Sciencepubs.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

sciencepubs.org

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