Tools & Wizards About Us
nephrohub.org screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

nephrohub.org

Home: nephroHUB: Feinberg School of Medicine: Northwestern University

Page Load Speed

1.4 sec in total

First Response

115 ms

Resources Loaded

927 ms

Page Rendered

397 ms

nephrohub.org screenshot

About Website

Click here to check amazing NephroHUB content. Otherwise, check out these important facts you probably never knew about nephrohub.org

The Northwestern University George M. O’Brien Kidney Core Center supports kidney disease research into prevention, treatment and, eventually, cures.

Visit nephrohub.org

Key Findings

We analyzed Nephrohub.org page load time and found that the first response time was 115 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

nephrohub.org performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value460 ms

62/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.1 s

41/100

10%

Network Requests Diagram

nephrohub.org

115 ms

www.nephrohub.org

150 ms

bootstrap.min.css

78 ms

all.css

152 ms

css

88 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 17% of them (9 requests) were addressed to the original Nephrohub.org, 19% (10 requests) were made to Deptcommon.fsm.northwestern.edu and 9% (5 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (383 ms) relates to the external source Common.northwestern.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 75.8 kB (5%)

Content Size

1.4 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nephrohub.org main page is 1.4 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. 65% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 23.5 kB

  • Original 31.6 kB
  • After minification 27.2 kB
  • After compression 8.1 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 4.4 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 23.5 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 19.0 kB

  • Original 1.2 MB
  • After minification 1.2 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. NephroHUB images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 3.3 kB

  • Original 133.0 kB
  • After minification 132.2 kB
  • After compression 129.7 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

-60%

Potential reduce by 29.9 kB

  • Original 50.2 kB
  • After minification 49.9 kB
  • After compression 20.3 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. Nephrohub.org needs all CSS files to be minified and compressed as it can save up to 29.9 kB or 60% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (51%)

Requests Now

39

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NephroHUB. 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 from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nephrohub.org

nephrohub.org

115 ms

www.nephrohub.org

www.nephrohub.org

150 ms

bootstrap.min.css

bootstrap.min.css

78 ms

all.css

all.css

152 ms

css

css

88 ms

css

css

105 ms

landing-page.css

landing-page.css

97 ms

v4.0.css

v4.0.css

69 ms

js

js

114 ms

siteanalyze_16505.js

siteanalyze_16505.js

79 ms

jquery-3.4.1.min.js

jquery-3.4.1.min.js

65 ms

popper.min.js

popper.min.js

85 ms

bootstrap.min.js

bootstrap.min.js

66 ms

common.js

common.js

76 ms

slick-home.js

slick-home.js

78 ms

slick-slider.js

slick-slider.js

74 ms

slick.min.js

slick.min.js

33 ms

landing-page.css

landing-page.css

114 ms

slick-slider.js

slick-slider.js

201 ms

common.js

common.js

199 ms

slick-home.js

slick-home.js

199 ms

beacon.js

beacon.js

171 ms

gtm.js

gtm.js

170 ms

renal-ortex-hero.jpg

renal-ortex-hero.jpg

298 ms

slashes-purple-bg.gif

slashes-purple-bg.gif

383 ms

podcast-icon.svg

podcast-icon.svg

293 ms

grey-slash.svg

grey-slash.svg

290 ms

slashes-grey-bg.gif

slashes-grey-bg.gif

326 ms

Feinberg-linear-white-240.svg

Feinberg-linear-white-240.svg

146 ms

Northwestern_horizontal_white-trimmed.svg

Northwestern_horizontal_white-trimmed.svg

143 ms

SITKD24-Square.jpg

SITKD24-Square.jpg

211 ms

nephrology-doc-patient.jpg

nephrology-doc-patient.jpg

274 ms

cores-360.jpg

cores-360.jpg

210 ms

world-kidney-charity-ride-360.jpg

world-kidney-charity-ride-360.jpg

324 ms

kidney-cell-360.jpg

kidney-cell-360.jpg

288 ms

gtm.js

gtm.js

70 ms

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7gujVj9w.ttf

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7gujVj9w.ttf

142 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVcUwaEQXjM.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVcUwaEQXjM.ttf

150 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVcUwaEQXjM.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVcUwaEQXjM.ttf

175 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVcUwaEQXjM.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVcUwaEQXjM.ttf

177 ms

fa-solid-900.woff

fa-solid-900.woff

126 ms

fa-regular-400.woff

fa-regular-400.woff

209 ms

fa-brands-400.woff

fa-brands-400.woff

238 ms

109 ms

image.aspx

image.aspx

96 ms

js

js

44 ms

analytics.js

analytics.js

35 ms

signal.js

signal.js

38 ms

fp.js

fp.js

37 ms

js

js

89 ms

linkid.js

linkid.js

50 ms

_itu.png

_itu.png

31 ms

collect

collect

61 ms

collect

collect

58 ms

Accessibility Review

nephrohub.org accessibility score

98

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

nephrohub.org best practices score

75

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nephrohub.org SEO score

92

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

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 Nephrohub.org 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 Nephrohub.org 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

nephrohub.org

Open Graph data is detected on the main page of NephroHUB. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: