Tools & Wizards About Us

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

cfsource.co.uk

Cystic Fibrosis (CF) Information and Resources | CFSource

Page Load Speed

204 ms in total

First Response

40 ms

Resources Loaded

112 ms

Page Rendered

52 ms

About Website

Visit cfsource.co.uk now to see the best up-to-date CFSource content and also check out these interesting facts you probably never knew about cfsource.co.uk

Learn about cystic fibrosis, including the causes and potential treatment options, as well as resources that can offer additional support for you or a loved one.

Visit cfsource.co.uk

Key Findings

We analyzed Cfsource.co.uk page load time and found that the first response time was 40 ms and then it took 164 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

cfsource.co.uk performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value7.2 s

29/100

10%

TBT (Total Blocking Time)

Value360 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value1.038

2/100

15%

TTI (Time to Interactive)

Value8.9 s

34/100

10%

Network Requests Diagram

cfsource.co.uk

40 ms

www.cfsource.co.uk

59 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Cfsource.co.uk and no external sources were called. The less responsive or slowest element that took the longest time to load (59 ms) belongs to the original domain Cfsource.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 982.3 kB (42%)

Content Size

2.4 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cfsource.co.uk main page is 2.4 MB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-32%

Potential reduce by 95 B

  • Original 296 B
  • After minification 292 B
  • After compression 201 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 95 B or 32% of the original size.

Image Optimization

-11%

Potential reduce by 133.9 kB

  • Original 1.2 MB
  • After minification 1.1 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. Obviously, CFSource needs image optimization as it can save up to 133.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-44%

Potential reduce by 192.3 kB

  • Original 440.1 kB
  • After minification 440.1 kB
  • After compression 247.8 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 192.3 kB or 44% of the original size.

CSS Optimization

-91%

Potential reduce by 656.0 kB

  • Original 724.0 kB
  • After minification 704.2 kB
  • After compression 67.9 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. Cfsource.co.uk needs all CSS files to be minified and compressed as it can save up to 656.0 kB or 91% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

Accessibility Review

cfsource.co.uk accessibility score

90

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

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.

Best Practices

cfsource.co.uk best practices score

92

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

SEO Factors

cfsource.co.uk SEO score

97

Search Engine Optimization Advices

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

    ISO-8859-1

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

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