Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

corscanplus.com

Corscan || Online Nuclear Cardiology Radiation Safety Courses

Page Load Speed

838 ms in total

First Response

41 ms

Resources Loaded

587 ms

Page Rendered

210 ms

corscanplus.com screenshot

About Website

Visit corscanplus.com now to see the best up-to-date Corscan Plus content and also check out these interesting facts you probably never knew about corscanplus.com

Corscan offers nuclear cardiology CME for CBNC, IAC, and ASNC, nuclear cardiology radiation safety training courses and nuclear cardiology CBNC board review courses.

Visit corscanplus.com

Key Findings

We analyzed Corscanplus.com page load time and found that the first response time was 41 ms and then it took 797 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

corscanplus.com performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value1,800 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.3 s

73/100

10%

Network Requests Diagram

corscanplus.com

41 ms

jquery-ui.css

39 ms

main.css

139 ms

nav-styleCheckbox.css

143 ms

update.css

142 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 71% of them (12 requests) were addressed to the original Corscanplus.com, 18% (3 requests) were made to Ajax.googleapis.com and 6% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (323 ms) belongs to the original domain Corscanplus.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 14.6 kB (10%)

Content Size

145.2 kB

After Optimization

130.6 kB

In fact, the total size of Corscanplus.com main page is 145.2 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 99.7 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 9.6 kB

  • Original 14.1 kB
  • After minification 13.9 kB
  • After compression 4.5 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 9.6 kB or 68% of the original size.

Image Optimization

-12%

Potential reduce by 3.0 kB

  • Original 25.3 kB
  • After minification 22.3 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. Obviously, Corscan Plus needs image optimization as it can save up to 3.0 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 261 B

  • Original 99.7 kB
  • After minification 99.7 kB
  • After compression 99.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-29%

Potential reduce by 1.8 kB

  • Original 6.2 kB
  • After minification 6.2 kB
  • After compression 4.4 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. Corscanplus.com needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (56%)

Requests Now

16

After Optimization

7

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Corscan Plus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

corscanplus.com accessibility score

73

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

corscanplus.com best practices score

67

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

SEO Factors

corscanplus.com SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

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

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 Corscanplus.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 Corscanplus.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

Open Graph description is not detected on the main page of Corscan Plus. 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: