Tools & Wizards About Us

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 50

    SEO

    Google-friendlier than
    19% of websites

coursewareobjects.elsevier.com

Page Load Speed

332 ms in total

First Response

121 ms

Resources Loaded

211 ms

Page Rendered

0 ms

About Website

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Key Findings

We analyzed Coursewareobjects.elsevier.com page load time and found that the first response time was 121 ms and then it took 211 ms 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

coursewareobjects.elsevier.com performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value4.3 s

75/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.1 s

64/100

10%

Network Requests Diagram

coursewareobjects.elsevier.com

121 ms

js

50 ms

analytics.js

33 ms

Our browser made a total of 3 requests to load all elements on the main page. We found that 67% of them (2 requests) were addressed to the original Coursewareobjects.elsevier.com, 33% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (121 ms) belongs to the original domain Coursewareobjects.elsevier.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 451.0 kB (85%)

Content Size

531.2 kB

After Optimization

80.3 kB

  • HTML
  • JavaScript

In fact, the total size of Coursewareobjects.elsevier.com main page is 531.2 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. 25% of websites need less resources to load. Javascripts take 530.7 kB which makes up the majority of the site volume.

HTML Optimization

-32%

Potential reduce by 182 B

  • Original 562 B
  • After minification 561 B
  • After compression 380 B

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 182 B or 32% of the original size.

JavaScript Optimization

-85%

Potential reduce by 450.8 kB

  • Original 530.7 kB
  • After minification 530.7 kB
  • After compression 79.9 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 450.8 kB or 85% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

2

After Optimization

2

  • JavaScript

The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coursewareobjects Elsevier. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

coursewareobjects.elsevier.com accessibility score

68

Accessibility Issues

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

Document doesn't have a <title> element

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

Best Practices

coursewareobjects.elsevier.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

coursewareobjects.elsevier.com SEO score

50

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

Document doesn't have a <title> element

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coursewareobjects.elsevier.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Coursewareobjects.elsevier.com main page’s claimed encoding is . 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

Open Graph description is not detected on the main page of Coursewareobjects Elsevier. 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: