Report Summary

  • 43

    Performance

    Renders faster than
    62% 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

  • 86

    SEO

    Google-friendlier than
    60% of websites

bcis.org.uk

Welcome - British Cardiovascular Intervention Society

Page Load Speed

17.7 sec in total

First Response

6.4 sec

Resources Loaded

10.7 sec

Page Rendered

591 ms

bcis.org.uk screenshot

About Website

Welcome to bcis.org.uk homepage info - get ready to check Bcis best content right away, or after learning these important things about bcis.org.uk

BCIS promotes education, training and research in cardiovascular intervention as well as developing and upholding professional standards.

Visit bcis.org.uk

Key Findings

We analyzed Bcis.org.uk page load time and found that the first response time was 6.4 sec and then it took 11.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

bcis.org.uk performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.5 s

1/100

10%

LCP (Largest Contentful Paint)

Value17.8 s

0/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.095

91/100

15%

TTI (Time to Interactive)

Value20.9 s

1/100

10%

Network Requests Diagram

www.bcis.org.uk

6448 ms

tza6spu.js

166 ms

screen.css

159 ms

css

37 ms

style.css

234 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 72% of them (41 requests) were addressed to the original Bcis.org.uk, 16% (9 requests) were made to Use.typekit.net and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (6.4 sec) belongs to the original domain Bcis.org.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 504.1 kB (12%)

Content Size

4.2 MB

After Optimization

3.7 MB

In fact, the total size of Bcis.org.uk main page is 4.2 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. 60% of websites need less resources to load. Images take 3.8 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 40.3 kB

  • Original 50.0 kB
  • After minification 45.2 kB
  • After compression 9.7 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 40.3 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 235.4 kB

  • Original 3.8 MB
  • After minification 3.6 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. Bcis images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 63.2 kB

  • Original 118.2 kB
  • After minification 118.2 kB
  • After compression 54.9 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 63.2 kB or 54% of the original size.

CSS Optimization

-85%

Potential reduce by 165.2 kB

  • Original 195.4 kB
  • After minification 193.6 kB
  • After compression 30.2 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. Bcis.org.uk needs all CSS files to be minified and compressed as it can save up to 165.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (26%)

Requests Now

46

After Optimization

34

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bcis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

bcis.org.uk accessibility score

81

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.

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 IDs are not unique

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

Best Practices

bcis.org.uk best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

bcis.org.uk SEO score

86

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

    <?PHP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bcis.org.uk 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 Bcis.org.uk main page’s claimed encoding is <?php. 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 data is detected on the main page of Bcis. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: