Tools & Wizards About Us

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

heartlung.osu.edu

Davis Heart and Lung Research Institute | Ohio State College of Medicine

Page Load Speed

21.3 sec in total

First Response

229 ms

Resources Loaded

9.4 sec

Page Rendered

11.7 sec

About Website

Welcome to heartlung.osu.edu homepage info - get ready to check Heart Lung Osu best content for United States right away, or after learning these important things about heartlung.osu.edu

At The Dorothy M. Davis Heart and Lung Research Institute, we are discovering new treatments for patients with acute and chronic diseases of the heart and lungs here at Ohio State.

Visit heartlung.osu.edu

Key Findings

We analyzed Heartlung.osu.edu page load time and found that the first response time was 229 ms and then it took 21.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

heartlung.osu.edu performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

16/100

10%

LCP (Largest Contentful Paint)

Value13.0 s

0/100

25%

SI (Speed Index)

Value6.6 s

38/100

10%

TBT (Total Blocking Time)

Value5,080 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value21.3 s

1/100

10%

Network Requests Diagram

davis-heart-lung-research-institute

229 ms

ruxitagentjs_ICA27Vfjqrux_10245220704125537.js

473 ms

osuwmc.min.css

1319 ms

jquery.min.js

1292 ms

kendo.custom.min.js

2013 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Heartlung.osu.edu, 8% (3 requests) were made to Googletagmanager.com and 3% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (4.7 sec) relates to the external source Medicine.osu.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 263.2 kB (8%)

Content Size

3.4 MB

After Optimization

3.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Heartlung.osu.edu main page is 3.4 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 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 43.9 kB

  • Original 58.1 kB
  • After minification 48.3 kB
  • After compression 14.2 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 9.8 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 43.9 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 826 B

  • Original 2.9 MB
  • After minification 2.9 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. Heart Lung Osu images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 209.4 kB

  • Original 379.7 kB
  • After minification 378.8 kB
  • After compression 170.4 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 209.4 kB or 55% of the original size.

CSS Optimization

-12%

Potential reduce by 9.1 kB

  • Original 77.6 kB
  • After minification 77.6 kB
  • After compression 68.5 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. Heartlung.osu.edu needs all CSS files to be minified and compressed as it can save up to 9.1 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (56%)

Requests Now

27

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Heart Lung Osu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

heartlung.osu.edu accessibility score

99

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

heartlung.osu.edu 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

SEO Factors

heartlung.osu.edu SEO score

89

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

High

Tap targets are not sized appropriately

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 Heartlung.osu.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 Heartlung.osu.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 Lung Osu. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: