Tools & Wizards About Us

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

heart.ucla.edu

Heart & Cardiovascular Services | UCLA Health

Page Load Speed

1.4 sec in total

First Response

269 ms

Resources Loaded

911 ms

Page Rendered

209 ms

About Website

Visit heart.ucla.edu now to see the best up-to-date Heart UCLA content for United States and also check out these interesting facts you probably never knew about heart.ucla.edu

Our cardiologists and specialists provide comprehensive cardiovascular care, including general and preventive services, testing, and surgery. Make an appointment.

Visit heart.ucla.edu

Key Findings

We analyzed Heart.ucla.edu page load time and found that the first response time was 269 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

heart.ucla.edu performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

39/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value3,270 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.133

81/100

15%

TTI (Time to Interactive)

Value14.6 s

8/100

10%

Network Requests Diagram

heart.ucla.edu

269 ms

heart

114 ms

google_tag.script.js

57 ms

css_zUAzZO3ElCYUY7wQKQwMqCW3yO2E8YdMj0RLpJRsNsM.css

387 ms

css_iQB8a0dCpExTK3DP3sAw1wZ390Bd4XjfSeiLnBmplX4.css

387 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Heart.ucla.edu, 58% (14 requests) were made to Uclahealth.org and 17% (4 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (473 ms) relates to the external source Uclahealth.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 116.8 kB (37%)

Content Size

319.7 kB

After Optimization

202.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Heart.ucla.edu main page is 319.7 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. 15% of websites need less resources to load. HTML takes 135.4 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 116.5 kB

  • Original 135.4 kB
  • After minification 112.2 kB
  • After compression 18.9 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. This page needs HTML code to be minified as it can gain 23.2 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 116.5 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 55.0 kB
  • After minification 55.0 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. Heart UCLA images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 65 B

  • Original 104.3 kB
  • After minification 104.3 kB
  • After compression 104.2 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

-1%

Potential reduce by 202 B

  • Original 25.0 kB
  • After minification 25.0 kB
  • After compression 24.8 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. Heart.ucla.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (58%)

Requests Now

19

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Heart UCLA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

heart.ucla.edu accessibility score

93

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

Buttons do not have an accessible name

Best Practices

heart.ucla.edu 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

High

Missing source maps for large first-party JavaScript

SEO Factors

heart.ucla.edu SEO score

93

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

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 Heart.ucla.edu 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 Heart.ucla.edu 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 Heart UCLA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: