Tools & Wizards About Us
kidneyregistry.org screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

kidneyregistry.org

National Kidney Registry | Facilitating Living Kidney Donation

Page Load Speed

1.3 sec in total

First Response

38 ms

Resources Loaded

980 ms

Page Rendered

305 ms

kidneyregistry.org screenshot

About Website

Click here to check amazing Kidney Registry content for United States. Otherwise, check out these important facts you probably never knew about kidneyregistry.org

The National Kidney Registry helps people facing kidney failure by facilitating paired kidney exchange and making living kidney donation safer and easier.

Visit kidneyregistry.org

Key Findings

We analyzed Kidneyregistry.org page load time and found that the first response time was 38 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 25% of websites can load faster.

Performance Metrics

kidneyregistry.org performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value250 ms

84/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value8.9 s

35/100

10%

Network Requests Diagram

kidneyregistry.org

38 ms

www.kidneyregistry.org

86 ms

www.kidneyregistry.org

161 ms

www.kidneyregistry.com

370 ms

style.css

40 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 7% of them (3 requests) were addressed to the original Kidneyregistry.org, 90% (38 requests) were made to Kidneyregistry.com and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (370 ms) relates to the external source Kidneyregistry.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 58.8 kB (11%)

Content Size

527.8 kB

After Optimization

469.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kidneyregistry.org main page is 527.8 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. 30% of websites need less resources to load. Images take 366.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 51.8 kB

  • Original 62.9 kB
  • After minification 60.6 kB
  • After compression 11.1 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. 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 51.8 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 592 B

  • Original 366.4 kB
  • After minification 365.8 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. Kidney Registry images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 420 B

  • Original 62.5 kB
  • After minification 62.5 kB
  • After compression 62.1 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

-17%

Potential reduce by 6.0 kB

  • Original 36.0 kB
  • After minification 36.0 kB
  • After compression 30.0 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. Kidneyregistry.org needs all CSS files to be minified and compressed as it can save up to 6.0 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (58%)

Requests Now

38

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kidney Registry. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kidneyregistry.org

kidneyregistry.org

38 ms

www.kidneyregistry.org

www.kidneyregistry.org

86 ms

www.kidneyregistry.org

www.kidneyregistry.org

161 ms

www.kidneyregistry.com

www.kidneyregistry.com

370 ms

style.css

style.css

40 ms

simple-lightbox.min.css

simple-lightbox.min.css

59 ms

style.css

style.css

63 ms

style-d.css

style-d.css

66 ms

jquery.min.js

jquery.min.js

90 ms

jquery-migrate.min.js

jquery-migrate.min.js

69 ms

style.css

style.css

68 ms

glossary.js

glossary.js

76 ms

simple-lightbox.min.js

simple-lightbox.min.js

86 ms

pageLoad.js

pageLoad.js

87 ms

navigation.js

navigation.js

87 ms

new-tab.js

new-tab.js

133 ms

gtm.js

gtm.js

79 ms

nkr-logo.svg

nkr-logo.svg

33 ms

chevron-down.svg

chevron-down.svg

35 ms

chevron-right-red.svg

chevron-right-red.svg

32 ms

FindAKidney_Color.svg

FindAKidney_Color.svg

36 ms

Kidney_For_Life_DNA_Color.svg

Kidney_For_Life_DNA_Color.svg

29 ms

magnifying-glass.svg

magnifying-glass.svg

36 ms

family_2800x986-scaled.jpg

family_2800x986-scaled.jpg

104 ms

small-kidney-bg-2.webp

small-kidney-bg-2.webp

58 ms

hand-holding-hand.svg

hand-holding-hand.svg

59 ms

people-arrows.svg

people-arrows.svg

60 ms

people-group.svg

people-group.svg

59 ms

hospital-alt.svg

hospital-alt.svg

61 ms

blog-icon.svg

blog-icon.svg

72 ms

headline-thumb1.jpg

headline-thumb1.jpg

73 ms

CBSMornings-Th_5-2024.jpg

CBSMornings-Th_5-2024.jpg

73 ms

today-show-thumb.jpg

today-show-thumb.jpg

95 ms

headline-thumb2.jpg

headline-thumb2.jpg

96 ms

small-kidney-bg.png

small-kidney-bg.png

94 ms

cta-heart.svg

cta-heart.svg

93 ms

facebook.svg

facebook.svg

95 ms

instagram.svg

instagram.svg

112 ms

youtube.svg

youtube.svg

113 ms

linkedin-in.svg

linkedin-in.svg

161 ms

style-m.css

style-m.css

23 ms

style-print.css

style-print.css

22 ms

Accessibility Review

kidneyregistry.org accessibility score

100

Accessibility Issues

Best Practices

kidneyregistry.org 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

kidneyregistry.org SEO score

97

Search Engine Optimization Advices

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 Kidneyregistry.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 Kidneyregistry.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

kidneyregistry.org

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