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nationalkidneycenter.org screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

nationalkidneycenter.org

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Page Load Speed

2.2 sec in total

First Response

152 ms

Resources Loaded

766 ms

Page Rendered

1.3 sec

nationalkidneycenter.org screenshot

About Website

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

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Key Findings

We analyzed Nationalkidneycenter.org page load time and found that the first response time was 152 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

nationalkidneycenter.org performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value3.2 s

91/100

10%

TBT (Total Blocking Time)

Value980 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

Network Requests Diagram

nationalkidneycenter.org

152 ms

105 ms

wp-emoji-release.min.js

13 ms

style.min.css

22 ms

css

46 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Nationalkidneycenter.org, 79% (44 requests) were made to Simplyrest.com and 5% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (412 ms) relates to the external source Secure.gravatar.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 153.8 kB (25%)

Content Size

624.8 kB

After Optimization

471.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nationalkidneycenter.org main page is 624.8 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. 70% of websites need less resources to load. Javascripts take 336.2 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 129.3 kB

  • Original 162.8 kB
  • After minification 160.2 kB
  • After compression 33.5 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 129.3 kB or 79% of the original size.

Image Optimization

-4%

Potential reduce by 1.3 kB

  • Original 35.2 kB
  • After minification 33.9 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. Nationalkidneycenter images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 22.2 kB

  • Original 336.2 kB
  • After minification 336.2 kB
  • After compression 313.9 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

-1%

Potential reduce by 986 B

  • Original 90.6 kB
  • After minification 90.6 kB
  • After compression 89.6 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. Nationalkidneycenter.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 40 (77%)

Requests Now

52

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nationalkidneycenter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nationalkidneycenter.org

nationalkidneycenter.org

152 ms

105 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

13 ms

style.min.css

style.min.css

22 ms

css

css

46 ms

style.min.css

style.min.css

29 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

32 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

34 ms

as-sleep-calculator-public.css

as-sleep-calculator-public.css

33 ms

responsive-tables.css

responsive-tables.css

32 ms

tatsu.min.css

tatsu.min.css

44 ms

exponent-modules.min.css

exponent-modules.min.css

36 ms

tatsu-icons.css

tatsu-icons.css

38 ms

astra-addon-5eda824a7e7260-69424908.css

astra-addon-5eda824a7e7260-69424908.css

40 ms

public.css

public.css

40 ms

default.min.css

default.min.css

40 ms

jetpack.css

jetpack.css

48 ms

jquery.min.js

jquery.min.js

58 ms

jquery-migrate.min.js

jquery-migrate.min.js

56 ms

js

js

122 ms

js

js

341 ms

js

js

382 ms

comment-reply.min.js

comment-reply.min.js

54 ms

style.min.js

style.min.js

55 ms

as-sleep-calculator-public.js

as-sleep-calculator-public.js

55 ms

api.js

api.js

52 ms

helpers.min.js

helpers.min.js

55 ms

debouncedresize.min.js

debouncedresize.min.js

98 ms

asyncloader.min.js

asyncloader.min.js

99 ms

exp-modules.min.js

exp-modules.min.js

99 ms

es6-promise.auto.min.js

es6-promise.auto.min.js

100 ms

core.min.js

core.min.js

101 ms

accordion.min.js

accordion.min.js

119 ms

tabs.min.js

tabs.min.js

120 ms

tatsu.min.js

tatsu.min.js

121 ms

tatsu-header.min.js

tatsu-header.min.js

124 ms

astra-addon-5eda824a7ecac3-75067454.js

astra-addon-5eda824a7ecac3-75067454.js

189 ms

e-202432.js

e-202432.js

25 ms

e16bcb390fe60da0597c456d9f66dd89

e16bcb390fe60da0597c456d9f66dd89

334 ms

recaptcha__de.js

recaptcha__de.js

323 ms

SR-logo-2020-1-120x36.png

SR-logo-2020-1-120x36.png

246 ms

down-vs-down-alternative-150x150.jpg

down-vs-down-alternative-150x150.jpg

245 ms

latex-vs-innerspring-mattress-2-150x150.jpg

latex-vs-innerspring-mattress-2-150x150.jpg

245 ms

mattress-foundation-sizes-guide-1-150x150.jpg

mattress-foundation-sizes-guide-1-150x150.jpg

245 ms

Best-Twin-XL-Size-Mattress-150x150.jpg

Best-Twin-XL-Size-Mattress-150x150.jpg

245 ms

Cyber-Monday-Mattress-Sales-1-150x150.jpg

Cyber-Monday-Mattress-Sales-1-150x150.jpg

244 ms

SR-logo-2020-white-300x89.png

SR-logo-2020-white-300x89.png

282 ms

737ce04e371178bb81c92929c3cdd167

737ce04e371178bb81c92929c3cdd167

377 ms

c218e0f603e8c840124ca37a85fbae2f

c218e0f603e8c840124ca37a85fbae2f

412 ms

pe1mMImSLYBIv1o4X1M8ce2xCx3yop4tQpF_MeTm0lfGWVpNn64CL7U8upHZIbMV51Q42ptCp5F5bxqqtQ1yiU4G1ilXs1Ug.ttf

pe1mMImSLYBIv1o4X1M8ce2xCx3yop4tQpF_MeTm0lfGWVpNn64CL7U8upHZIbMV51Q42ptCp5F5bxqqtQ1yiU4G1ilXs1Ug.ttf

273 ms

astra.woff

astra.woff

97 ms

isotope.min.js

isotope.min.js

36 ms

begrid.min.js

begrid.min.js

36 ms

tilt.min.js

tilt.min.js

35 ms

superfish.min.js

superfish.min.js

31 ms

hoverintent.min.js

hoverintent.min.js

33 ms

Accessibility Review

nationalkidneycenter.org accessibility score

98

Accessibility Issues

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.

Best Practices

nationalkidneycenter.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

nationalkidneycenter.org SEO score

93

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

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 Nationalkidneycenter.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 Nationalkidneycenter.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

nationalkidneycenter.org

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