Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

alivecor.com.hk

Kardia | AliveCor 有效率的測試您的 ECG/ EKG 心電圖檢查, 30 秒幫助您的心律不正和心臟問題.

Page Load Speed

2.4 sec in total

First Response

393 ms

Resources Loaded

1.7 sec

Page Rendered

336 ms

alivecor.com.hk screenshot

About Website

Click here to check amazing Alive Cor content for China. Otherwise, check out these important facts you probably never knew about alivecor.com.hk

Kardia | AliveCor 有效率的測試您的 ECG/ EKG 心電圖檢查, 30 秒幫助您的心律不正問題. Kardia AliverCor 擁有美國FDA認證, 只需 30 秒即可獲得ECG / EKG 心電圖檢查, 檢測 6 種最常見的心律不整和心臟問題. 檢測 AFib、心動過緩、心動過速、正常竇性心律、室性早搏 (PVC) 竇性心律、室上性異位 (SVE) 竇性心律、寬 QRS ...

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Key Findings

We analyzed Alivecor.com.hk page load time and found that the first response time was 393 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

alivecor.com.hk performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value23.7 s

0/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value21.6 s

1/100

10%

Network Requests Diagram

www.alivecor.com.hk

393 ms

timber.scss.css

33 ms

theme.scss.css

26 ms

css

45 ms

ga_urchin_forms-0826cdefee6590321eb5c0c435eeebf7a8425a5493a9e95059c40e07e069ad52.js

19 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Alivecor.com.hk, 46% (18 requests) were made to Cdn.shopify.com and 10% (4 requests) were made to Alivecorcms.s3.amazonaws.com. The less responsive or slowest element that took the longest time to load (411 ms) relates to the external source Call.chatra.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 269.2 kB (32%)

Content Size

848.5 kB

After Optimization

579.2 kB

In fact, the total size of Alivecor.com.hk main page is 848.5 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. 50% of websites need less resources to load. Images take 490.4 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 29.1 kB

  • Original 38.0 kB
  • After minification 34.5 kB
  • After compression 8.9 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 29.1 kB or 77% of the original size.

Image Optimization

-8%

Potential reduce by 39.1 kB

  • Original 490.4 kB
  • After minification 451.3 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. Alive Cor images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 126.5 kB

  • Original 221.6 kB
  • After minification 215.8 kB
  • After compression 95.1 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 126.5 kB or 57% of the original size.

CSS Optimization

-76%

Potential reduce by 74.5 kB

  • Original 98.5 kB
  • After minification 98.3 kB
  • After compression 24.0 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. Alivecor.com.hk needs all CSS files to be minified and compressed as it can save up to 74.5 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (62%)

Requests Now

34

After Optimization

13

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alive Cor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

alivecor.com.hk accessibility score

95

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

Links do not have a discernible name

Best Practices

alivecor.com.hk best practices score

75

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

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

alivecor.com.hk SEO score

93

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alivecor.com.hk can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed English language. Our system also found out that Alivecor.com.hk 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 Alive Cor. 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: