Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

a-fib.com

Atrial Fibrillation: Resources for PatientsAtrial Fibrillation: Resources for Patients

Page Load Speed

3.1 sec in total

First Response

674 ms

Resources Loaded

1.9 sec

Page Rendered

505 ms

a-fib.com screenshot

About Website

Click here to check amazing A Fib content for United States. Otherwise, check out these important facts you probably never knew about a-fib.com

Treatments for A-Fib, supplements for a healthy heart & how to seek your cure. Written in plain language by Steve S. Ryan, PhD, a former AF patient.

Visit a-fib.com

Key Findings

We analyzed A-fib.com page load time and found that the first response time was 674 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

a-fib.com performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

10/100

25%

SI (Speed Index)

Value4.4 s

73/100

10%

TBT (Total Blocking Time)

Value290 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.071

96/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

a-fib.com

674 ms

style.css

20 ms

footnote-voodoo.css

41 ms

flashblock.css

46 ms

player.css

41 ms

Our browser made a total of 145 requests to load all elements on the main page. We found that 41% of them (59 requests) were addressed to the original A-fib.com, 18% (26 requests) were made to Media-cache-ak0.pinimg.com and 14% (20 requests) were made to Media-cache-ec0.pinimg.com. The less responsive or slowest element that took the longest time to load (906 ms) relates to the external source Web.archive.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 623.1 kB (32%)

Content Size

1.9 MB

After Optimization

1.3 MB

In fact, the total size of A-fib.com main page is 1.9 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. 70% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 123.8 kB

  • Original 158.7 kB
  • After minification 158.7 kB
  • After compression 34.9 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 123.8 kB or 78% of the original size.

Image Optimization

-8%

Potential reduce by 97.1 kB

  • Original 1.1 MB
  • After minification 1.0 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. A Fib images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 303.7 kB

  • Original 510.4 kB
  • After minification 507.9 kB
  • After compression 206.8 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 303.7 kB or 59% of the original size.

CSS Optimization

-73%

Potential reduce by 98.5 kB

  • Original 135.8 kB
  • After minification 133.2 kB
  • After compression 37.3 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. A-fib.com needs all CSS files to be minified and compressed as it can save up to 98.5 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 59 (43%)

Requests Now

136

After Optimization

77

The browser has sent 136 CSS, Javascripts, AJAX and image requests in order to completely render the main page of A Fib. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

a-fib.com accessibility score

86

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

a-fib.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

High

Browser errors were logged to the console

SEO Factors

a-fib.com SEO score

64

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

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 A-fib.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 A-fib.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 data is detected on the main page of A Fib. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: