Tools & Wizards About Us
lefkofskyfoundation.com screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

lefkofskyfoundation.com

Eric Lefkofsky & Liz Lefkofsky's: Lefkofsky Family Foundation

Page Load Speed

3.3 sec in total

First Response

140 ms

Resources Loaded

2.7 sec

Page Rendered

410 ms

lefkofskyfoundation.com screenshot

About Website

Click here to check amazing Lefkofsky Foundation content. Otherwise, check out these important facts you probably never knew about lefkofskyfoundation.com

Visit lefkofskyfoundation.com

Key Findings

We analyzed Lefkofskyfoundation.com page load time and found that the first response time was 140 ms and then it took 3.1 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

lefkofskyfoundation.com performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

36/100

25%

SI (Speed Index)

Value6.4 s

41/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.717

7/100

15%

TTI (Time to Interactive)

Value6.0 s

64/100

10%

Network Requests Diagram

lefkofskyfoundation.com

140 ms

lefkofskyfoundation.com

442 ms

css2

50 ms

bootstrap.min.css

44 ms

all.css

38 ms

Our browser made a total of 111 requests to load all elements on the main page. We found that 92% of them (102 requests) were addressed to the original Lefkofskyfoundation.com, 3% (3 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (799 ms) belongs to the original domain Lefkofskyfoundation.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 270.3 kB (13%)

Content Size

2.1 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lefkofskyfoundation.com main page is 2.1 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 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 220.9 kB

  • Original 285.9 kB
  • After minification 284.4 kB
  • After compression 65.0 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 220.9 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 33.7 kB

  • Original 1.5 MB
  • After minification 1.5 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. Lefkofsky Foundation images are well optimized though.

JavaScript Optimization

-8%

Potential reduce by 8.8 kB

  • Original 107.4 kB
  • After minification 107.4 kB
  • After compression 98.7 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

-5%

Potential reduce by 6.9 kB

  • Original 138.3 kB
  • After minification 137.9 kB
  • After compression 131.4 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. Lefkofskyfoundation.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 33 (31%)

Requests Now

105

After Optimization

72

  • Images
  • JavaScript
  • CSS

The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lefkofsky Foundation. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lefkofskyfoundation.com

lefkofskyfoundation.com

140 ms

lefkofskyfoundation.com

lefkofskyfoundation.com

442 ms

css2

css2

50 ms

bootstrap.min.css

bootstrap.min.css

44 ms

all.css

all.css

38 ms

style.min.css

style.min.css

358 ms

styles.css

styles.css

344 ms

style.css

style.css

351 ms

dashicons.min.css

dashicons.min.css

390 ms

genericons.css

genericons.css

378 ms

font-awesome.min.css

font-awesome.min.css

308 ms

all.min.css

all.min.css

419 ms

style.css

style.css

433 ms

style.css

style.css

417 ms

aos.css

aos.css

505 ms

open-iconic-bootstrap.css

open-iconic-bootstrap.css

568 ms

bootstrap.css

bootstrap.css

593 ms

style.css

style.css

483 ms

jquery.min.js

jquery.min.js

618 ms

jquery-migrate.min.js

jquery-migrate.min.js

556 ms

lff-app.js

lff-app.js

557 ms

popper.min.js

popper.min.js

34 ms

bootstrap.min.js

bootstrap.min.js

34 ms

aos.js

aos.js

589 ms

js

js

74 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

579 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

612 ms

wp-polyfill.min.js

wp-polyfill.min.js

579 ms

hooks.min.js

hooks.min.js

559 ms

i18n.min.js

i18n.min.js

560 ms

index.js

index.js

611 ms

index.js

index.js

678 ms

davidwalsh.js

davidwalsh.js

645 ms

bootstrap.js

bootstrap.js

710 ms

hoverIntent.min.js

hoverIntent.min.js

650 ms

maxmegamenu.js

maxmegamenu.js

799 ms

public.js

public.js

799 ms

lff-app.css

lff-app.css

443 ms

lff_logo.png

lff_logo.png

120 ms

education.png

education.png

120 ms

human_rights.png

human_rights.png

119 ms

medical.png

medical.png

121 ms

arts_culture.png

arts_culture.png

153 ms

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153 ms

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213 ms

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245 ms

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241 ms

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261 ms

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240 ms

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296 ms

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322 ms

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320 ms

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353 ms

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413 ms

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434 ms

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lff_logos_0051_Chicago-Public-Education-Fund.png

421 ms

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lff_logos_0022_My-Chi.-My-Future-1.png

471 ms

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lff_logos_0052_Chicago-Media-Project.png

459 ms

lff_logos_0050_Childrens-First-Fund.png

lff_logos_0050_Childrens-First-Fund.png

476 ms

lff_logos_0053_Chicago-Botanic-Gardens.png

lff_logos_0053_Chicago-Botanic-Gardens.png

519 ms

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lff_logos_0046_Cradles-to-Crayons.png

561 ms

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lff_logos_0047_Communities-in-Schools.png

516 ms

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lff_logos_0042_Erikson-Institute.png

536 ms

lff_logos_0034_Joffrey-Ballet.png

lff_logos_0034_Joffrey-Ballet.png

611 ms

lff_logos_0043_Enlace.png

lff_logos_0043_Enlace.png

593 ms

lff_logos_0041_Everytown-for-Gun-Safety.png

lff_logos_0041_Everytown-for-Gun-Safety.png

625 ms

lff_logos_0039_Grantmakers-for-Thriving-Youth.png

lff_logos_0039_Grantmakers-for-Thriving-Youth.png

651 ms

lff_logos_0023_Museum-of-Science-and-Industry.png

lff_logos_0023_Museum-of-Science-and-Industry.png

650 ms

lff_logos_0031_Lurie-Comprehensive-Cancer-Center.png

lff_logos_0031_Lurie-Comprehensive-Cancer-Center.png

649 ms

lff_logos_0040_Fund-for-a-Safer-Future.png

lff_logos_0040_Fund-for-a-Safer-Future.png

702 ms

lff_logos_0038_Greenhouse-Scholars.png

lff_logos_0038_Greenhouse-Scholars.png

706 ms

lff_logos_0036_Human-Rights-Watch.png

lff_logos_0036_Human-Rights-Watch.png

775 ms

lff_logos_0037_High-Jump.png

lff_logos_0037_High-Jump.png

709 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr6Ew-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr6Ew-.ttf

86 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew-.ttf

86 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w-.ttf

87 ms

lff_logos_0024_Museum-of-Contemporary-Art.png

lff_logos_0024_Museum-of-Contemporary-Art.png

721 ms

lff_logos_0033_Just-the-Pill.png

lff_logos_0033_Just-the-Pill.png

677 ms

lff_logos_0025_Millenium-Park-Foundation.png

lff_logos_0025_Millenium-Park-Foundation.png

705 ms

lff_logos_0029_MD-Anderson-Cancer-Center.png

lff_logos_0029_MD-Anderson-Cancer-Center.png

694 ms

lff_logos_0035_Jewish-United-Fund.png

lff_logos_0035_Jewish-United-Fund.png

711 ms

lff_logos_0032_Kids-First-Chicago.png

lff_logos_0032_Kids-First-Chicago.png

743 ms

lff_logos_0019_Northwestern-University.png

lff_logos_0019_Northwestern-University.png

733 ms

lff_logos_0027_Men-4-Choice.png

lff_logos_0027_Men-4-Choice.png

668 ms

lff_logos_0022_My-Chi.-My-Future.png

lff_logos_0022_My-Chi.-My-Future.png

685 ms

lff_logos_0014_Ravinia.png

lff_logos_0014_Ravinia.png

673 ms

lff_logos_0012_St.-Jude-Childrens-Research-Hospital.png

lff_logos_0012_St.-Jude-Childrens-Research-Hospital.png

717 ms

lff_logos_0028_Medical-Missions-for-Children.png

lff_logos_0028_Medical-Missions-for-Children.png

711 ms

lff_logos_0018_OneGoal.png

lff_logos_0018_OneGoal.png

708 ms

lff_logos_0010_Steppenwolf.png

lff_logos_0010_Steppenwolf.png

675 ms

lff_logos_0011_Stanford-Medicine.png

lff_logos_0011_Stanford-Medicine.png

685 ms

lff_logos_0026_Midwest-Access-Project.png

lff_logos_0026_Midwest-Access-Project.png

687 ms

lff_logos_0016_Pitch-In-Wood-Family-Foundation.png

lff_logos_0016_Pitch-In-Wood-Family-Foundation.png

686 ms

lff_logos_0009_The-Renaissance-Society.png

lff_logos_0009_The-Renaissance-Society.png

617 ms

lff_logos_0021_National-Institute-for-Reproductive-Health.png

lff_logos_0021_National-Institute-for-Reproductive-Health.png

659 ms

whitney.png

whitney.png

721 ms

lff_logos_0008_University-of-Chicago.png

lff_logos_0008_University-of-Chicago.png

727 ms

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partnership_for_safe_and_peaceful_communities.png

655 ms

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lff_logos_0001_Writers-Theater.png

703 ms

lff_logos_0007_University-of-Michigan-Health-Care-System.png

lff_logos_0007_University-of-Michigan-Health-Care-System.png

655 ms

lff_logos_0017_Peer-Health-Exchange.png

lff_logos_0017_Peer-Health-Exchange.png

662 ms

lff_logos_0005_Urban-Initiatives.png

lff_logos_0005_Urban-Initiatives.png

641 ms

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lff_logos_0006_University-of-Pennsylvania.png

656 ms

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lff_logos_0003_Weill-Cornell-Medical.png

691 ms

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668 ms

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lff_logos_0004_US-Holocaust-Museum.png

627 ms

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lff_logos_0002_World-Central-Kitchen.png

648 ms

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652 ms

sb_logo.png

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613 ms

ving_logo.png

ving_logo.png

643 ms

hsb_logo.png

hsb_logo.png

639 ms

Accessibility Review

lefkofskyfoundation.com accessibility score

82

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.

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

lefkofskyfoundation.com 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

High

Page has valid source maps

SEO Factors

lefkofskyfoundation.com SEO score

79

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Lefkofskyfoundation.com 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 Lefkofskyfoundation.com 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

lefkofskyfoundation.com

Open Graph description is not detected on the main page of Lefkofsky Foundation. 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: