Tools & Wizards About Us

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

ehrs.upenn.edu

EHRS Home | Office of Environmental Health and Radiation Safety | UPenn

Page Load Speed

783 ms in total

First Response

28 ms

Resources Loaded

538 ms

Page Rendered

217 ms

About Website

Click here to check amazing EHRS UPenn content for United States. Otherwise, check out these important facts you probably never knew about ehrs.upenn.edu

The Office of Environmental Health and Radiation Safety is a unit in the Office of Vice Provost for Research. In consultation with faculty and the administration, EHRS is responsible for the developme...

Visit ehrs.upenn.edu

Key Findings

We analyzed Ehrs.upenn.edu page load time and found that the first response time was 28 ms and then it took 755 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

ehrs.upenn.edu performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value390 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0.173

69/100

15%

TTI (Time to Interactive)

Value6.6 s

57/100

10%

Network Requests Diagram

ehrs.upenn.edu

28 ms

ehrs.upenn.edu

99 ms

gtm.js

45 ms

js

119 ms

css_BvQnSAv62jZG-5qVfQpo_LBVbK8QtwIqICYCYDvHUwE.css

12 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 62% of them (28 requests) were addressed to the original Ehrs.upenn.edu, 22% (10 requests) were made to Fonts.gstatic.com and 9% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (229 ms) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 110.3 kB (9%)

Content Size

1.2 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ehrs.upenn.edu main page is 1.2 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. 70% of websites need less resources to load. Images take 969.5 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 50.9 kB

  • Original 61.9 kB
  • After minification 53.0 kB
  • After compression 10.9 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 8.9 kB, which is 14% 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 50.9 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 7.6 kB

  • Original 969.5 kB
  • After minification 961.9 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. EHRS UPenn images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 40.1 kB

  • Original 107.1 kB
  • After minification 107.1 kB
  • After compression 67.0 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 40.1 kB or 37% of the original size.

CSS Optimization

-22%

Potential reduce by 11.7 kB

  • Original 52.2 kB
  • After minification 52.2 kB
  • After compression 40.4 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. Ehrs.upenn.edu needs all CSS files to be minified and compressed as it can save up to 11.7 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (34%)

Requests Now

32

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of EHRS 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 6 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

ehrs.upenn.edu accessibility score

91

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Best Practices

ehrs.upenn.edu best practices score

83

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

SEO Factors

ehrs.upenn.edu SEO score

91

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 Ehrs.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 Ehrs.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 description is not detected on the main page of EHRS UPenn. 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: