Tools & Wizards About Us

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

irm.med.upenn.edu

Home - Institute for Regenerative Medicine, University of Pennsylvania

Page Load Speed

1.7 sec in total

First Response

34 ms

Resources Loaded

1.2 sec

Page Rendered

449 ms

About Website

Click here to check amazing Irm Med Upenn content for United States. Otherwise, check out these important facts you probably never knew about irm.med.upenn.edu

Exploring how cells and tissues are formed and applying that knowledge to next generation diagnostics and therapies. Stem cell research in Philadelphia, PA.

Visit irm.med.upenn.edu

Key Findings

We analyzed Irm.med.upenn.edu page load time and found that the first response time was 34 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

irm.med.upenn.edu performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value11.6 s

0/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.33

34/100

15%

TTI (Time to Interactive)

Value16.1 s

6/100

10%

Network Requests Diagram

irm.med.upenn.edu

34 ms

irm.med.upenn.edu

536 ms

ai1ec_parsed_css.css

57 ms

style.min.css

48 ms

styles.css

41 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 84% of them (80 requests) were addressed to the original Irm.med.upenn.edu, 4% (4 requests) were made to Platform.twitter.com and 4% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (536 ms) belongs to the original domain Irm.med.upenn.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 789.4 kB (19%)

Content Size

4.2 MB

After Optimization

3.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Irm.med.upenn.edu main page is 4.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 206.7 kB

  • Original 246.9 kB
  • After minification 241.6 kB
  • After compression 40.2 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. 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 206.7 kB or 84% of the original size.

Image Optimization

-18%

Potential reduce by 575.8 kB

  • Original 3.2 MB
  • After minification 2.6 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, Irm Med Upenn needs image optimization as it can save up to 575.8 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 1.2 kB

  • Original 395.8 kB
  • After minification 395.8 kB
  • After compression 394.6 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

-2%

Potential reduce by 5.7 kB

  • Original 313.2 kB
  • After minification 312.9 kB
  • After compression 307.5 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. Irm.med.upenn.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 63 (72%)

Requests Now

87

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Irm Med Upenn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 32 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

irm.med.upenn.edu accessibility score

80

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Best Practices

irm.med.upenn.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

SEO Factors

irm.med.upenn.edu SEO score

79

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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 Irm.med.upenn.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 Irm.med.upenn.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 Irm Med Upenn. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: