Tools & Wizards About Us
clsi.org screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

clsi.org

Clinical & Laboratory Standards Institute: CLSI Guidelines

Page Load Speed

3 sec in total

First Response

66 ms

Resources Loaded

2 sec

Page Rendered

929 ms

clsi.org screenshot

About Website

Click here to check amazing CLSI content for Portugal. Otherwise, check out these important facts you probably never knew about clsi.org

The Clinical & Laboratory Standards Institute (CLSI) provides standards and guidelines for medical professionals through its unique consensus process.

Visit clsi.org

Key Findings

We analyzed Clsi.org page load time and found that the first response time was 66 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

clsi.org performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value3,910 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.093

91/100

15%

TTI (Time to Interactive)

Value22.8 s

1/100

10%

Network Requests Diagram

clsi.org

66 ms

j.php

100 ms

js

130 ms

snippet.js

162 ms

jquery-3.3.1.min.js

19 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 67% of them (42 requests) were addressed to the original Clsi.org, 11% (7 requests) were made to Youtube.com and 6% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (398 ms) relates to the external source Static.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 689.2 kB (29%)

Content Size

2.3 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Clsi.org main page is 2.3 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 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 68.9 kB

  • Original 81.4 kB
  • After minification 62.2 kB
  • After compression 12.5 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. This page needs HTML code to be minified as it can gain 19.2 kB, which is 24% 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 68.9 kB or 85% of the original size.

Image Optimization

-34%

Potential reduce by 615.7 kB

  • Original 1.8 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. Obviously, CLSI needs image optimization as it can save up to 615.7 kB or 34% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 3.9 kB

  • Original 259.3 kB
  • After minification 259.3 kB
  • After compression 255.4 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

-0%

Potential reduce by 756 B

  • Original 165.2 kB
  • After minification 165.2 kB
  • After compression 164.4 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. Clsi.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 31 (58%)

Requests Now

53

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CLSI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

clsi.org

clsi.org

66 ms

j.php

j.php

100 ms

js

js

130 ms

snippet.js

snippet.js

162 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

19 ms

jquery.validate.min.js

jquery.validate.min.js

67 ms

jquery.validate.unobtrusive.min.js

jquery.validate.unobtrusive.min.js

85 ms

_carbide.generated.mvcvalidationextensions.unobtrusive.js

_carbide.generated.mvcvalidationextensions.unobtrusive.js

85 ms

numeral.min.js

numeral.min.js

89 ms

alertify.min.js

alertify.min.js

85 ms

alertify.min.css

alertify.min.css

91 ms

default.min.css

default.min.css

88 ms

_carbide.generated.jquery.cookie.js

_carbide.generated.jquery.cookie.js

92 ms

lightgallery.min.js

lightgallery.min.js

91 ms

lightgallery.min.css

lightgallery.min.css

91 ms

_carbide.generated.Menus.js

_carbide.generated.Menus.js

93 ms

_carbide.generated.ShoppingCartHelpers.js

_carbide.generated.ShoppingCartHelpers.js

98 ms

_carbide.generated.DownloadHelpers.js

_carbide.generated.DownloadHelpers.js

98 ms

_carbide.generated.Geolocation.js

_carbide.generated.Geolocation.js

99 ms

slick.min.js

slick.min.js

98 ms

_carbide.generated.slick.css

_carbide.generated.slick.css

99 ms

all.min.css

all.min.css

107 ms

application.css

application.css

108 ms

iframe_api

iframe_api

116 ms

js

js

332 ms

v.gif

v.gif

20 ms

css

css

107 ms

www-widgetapi.js

www-widgetapi.js

239 ms

gtm.js

gtm.js

241 ms

mobile-menu-icon.svg

mobile-menu-icon.svg

220 ms

5kTV97J-xfI

5kTV97J-xfI

196 ms

clsi-logo.svg

clsi-logo.svg

166 ms

clsi-text.svg

clsi-text.svg

168 ms

hero_image_4-2.png

hero_image_4-2.png

169 ms

resourcesicon2.jpg

resourcesicon2.jpg

170 ms

webimagem100m02m07_preorder.png

webimagem100m02m07_preorder.png

171 ms

mm26ed1e_cover.png

mm26ed1e_cover.png

171 ms

ep10ed4e_cover.png

ep10ed4e_cover.png

169 ms

pre05ed1e_cover.png

pre05ed1e_cover.png

171 ms

h21ed6e_cover.png

h21ed6e_cover.png

172 ms

c40ed3e_cover.png

c40ed3e_cover.png

175 ms

nbs10ed1e_cover.png

nbs10ed1e_cover.png

174 ms

m100ed34_cover.png

m100ed34_cover.png

173 ms

m02ed14e_cover.png

m02ed14e_cover.png

175 ms

m07ed12e_cover.png

m07ed12e_cover.png

172 ms

blue-noise.png

blue-noise.png

176 ms

clsi-logo-white.png

clsi-logo-white.png

173 ms

www-player.css

www-player.css

62 ms

www-embed-player.js

www-embed-player.js

109 ms

base.js

base.js

323 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

168 ms

jizaRExUiTo99u79D0KEwA.ttf

jizaRExUiTo99u79D0KEwA.ttf

311 ms

jizfRExUiTo99u79B_mh0O6tKA.ttf

jizfRExUiTo99u79B_mh0O6tKA.ttf

312 ms

fa-brands-400.woff

fa-brands-400.woff

219 ms

fa-regular-400.woff

fa-regular-400.woff

308 ms

fa-light-300.woff

fa-light-300.woff

307 ms

fa-solid-900.woff

fa-solid-900.woff

307 ms

ad_status.js

ad_status.js

398 ms

1AiCzlAXOvKBjKQ6-ZkwShm4tpQuZWMhqjO5xqGcWBk.js

1AiCzlAXOvKBjKQ6-ZkwShm4tpQuZWMhqjO5xqGcWBk.js

283 ms

embed.js

embed.js

51 ms

id

id

141 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

21 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

177 ms

Accessibility Review

clsi.org accessibility score

67

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

clsi.org best practices score

83

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

Page has valid source maps

SEO Factors

clsi.org 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 Clsi.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 Clsi.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

clsi.org

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