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lff.com screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% 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

lff.com

Eric Lefkofsky & Liz Lefkofsky's: Lefkofsky Family Foundation

Page Load Speed

3.6 sec in total

First Response

165 ms

Resources Loaded

2.9 sec

Page Rendered

472 ms

lff.com screenshot

About Website

Visit lff.com now to see the best up-to-date Lff content and also check out these interesting facts you probably never knew about lff.com

Visit lff.com

Key Findings

We analyzed Lff.com page load time and found that the first response time was 165 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

lff.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

32/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.742

6/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

lff.com

165 ms

lefkofskyfoundation.com

163 ms

lefkofskyfoundation.com

401 ms

css2

54 ms

bootstrap.min.css

41 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Lff.com, 88% (97 requests) were made to Lefkofskyfoundation.com and 3% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (869 ms) relates to the external source Lefkofskyfoundation.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 269.6 kB (13%)

Content Size

2.1 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lff.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 220.3 kB

  • Original 285.6 kB
  • After minification 284.1 kB
  • After compression 65.3 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 220.3 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. Lff images are well optimized though.

JavaScript Optimization

-8%

Potential reduce by 8.6 kB

  • Original 104.2 kB
  • After minification 104.2 kB
  • After compression 95.5 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 149.9 kB
  • After minification 149.5 kB
  • After compression 143.0 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. Lff.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 31 (30%)

Requests Now

104

After Optimization

73

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 104 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lff. 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 17 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lff.com

lff.com

165 ms

lefkofskyfoundation.com

lefkofskyfoundation.com

163 ms

lefkofskyfoundation.com

lefkofskyfoundation.com

401 ms

css2

css2

54 ms

bootstrap.min.css

bootstrap.min.css

41 ms

all.css

all.css

57 ms

style.min.css

style.min.css

200 ms

styles.css

styles.css

225 ms

style.css

style.css

281 ms

dashicons.min.css

dashicons.min.css

378 ms

genericons.css

genericons.css

299 ms

font-awesome.min.css

font-awesome.min.css

241 ms

all.min.css

all.min.css

294 ms

style.css

style.css

313 ms

style.css

style.css

308 ms

aos.css

aos.css

538 ms

open-iconic-bootstrap.css

open-iconic-bootstrap.css

428 ms

bootstrap.css

bootstrap.css

445 ms

style.css

style.css

414 ms

jquery.min.js

jquery.min.js

608 ms

jquery-migrate.min.js

jquery-migrate.min.js

484 ms

lff-app.js

lff-app.js

483 ms

popper.min.js

popper.min.js

48 ms

bootstrap.min.js

bootstrap.min.js

81 ms

aos.js

aos.js

516 ms

js

js

73 ms

index.js

index.js

429 ms

index.js

index.js

445 ms

davidwalsh.js

davidwalsh.js

467 ms

bootstrap.js

bootstrap.js

500 ms

hoverIntent.min.js

hoverIntent.min.js

521 ms

maxmegamenu.js

maxmegamenu.js

560 ms

public.js

public.js

554 ms

lff-app.css

lff-app.css

379 ms

lff_logo.png

lff_logo.png

99 ms

education.png

education.png

99 ms

human_rights.png

human_rights.png

99 ms

medical.png

medical.png

228 ms

arts_culture.png

arts_culture.png

228 ms

lff_logos_0060_Anderson-Ranch.png

lff_logos_0060_Anderson-Ranch.png

227 ms

lff_logos_0064_Alzheimers-Drug-Discovery-Foundation.png

lff_logos_0064_Alzheimers-Drug-Discovery-Foundation.png

274 ms

lff_logos_0063_American-Brain-Tumor-Association.png

lff_logos_0063_American-Brain-Tumor-Association.png

228 ms

lff_logos_0061_AMLE.png

lff_logos_0061_AMLE.png

228 ms

lff_logos_0057_Aspen-Art-Museum.png

lff_logos_0057_Aspen-Art-Museum.png

341 ms

lff_logos_0059_Ann-Robert-Lurie-Childrens-Hospital.png

lff_logos_0059_Ann-Robert-Lurie-Childrens-Hospital.png

330 ms

lff_logos_0056_AUSL.png

lff_logos_0056_AUSL.png

439 ms

lff_logos_0049_Childrens-National-Hospital-Foundation.png

lff_logos_0049_Childrens-National-Hospital-Foundation.png

360 ms

lff_logos_0065_After-School-Matters.png

lff_logos_0065_After-School-Matters.png

358 ms

lff_logos_0055_Broadway-Cares.png

lff_logos_0055_Broadway-Cares.png

325 ms

lff_logos_0048_Cleveland-Clinic.png

lff_logos_0048_Cleveland-Clinic.png

476 ms

center-for-reproductive-rights.png

center-for-reproductive-rights.png

485 ms

lff_logos_0051_Chicago-Public-Education-Fund.png

lff_logos_0051_Chicago-Public-Education-Fund.png

448 ms

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

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

502 ms

lff_logos_0052_Chicago-Media-Project.png

lff_logos_0052_Chicago-Media-Project.png

453 ms

lff_logos_0050_Childrens-First-Fund.png

lff_logos_0050_Childrens-First-Fund.png

585 ms

lff_logos_0053_Chicago-Botanic-Gardens.png

lff_logos_0053_Chicago-Botanic-Gardens.png

609 ms

lff_logos_0046_Cradles-to-Crayons.png

lff_logos_0046_Cradles-to-Crayons.png

665 ms

lff_logos_0047_Communities-in-Schools.png

lff_logos_0047_Communities-in-Schools.png

580 ms

lff_logos_0042_Erikson-Institute.png

lff_logos_0042_Erikson-Institute.png

582 ms

lff_logos_0034_Joffrey-Ballet.png

lff_logos_0034_Joffrey-Ballet.png

595 ms

lff_logos_0043_Enlace.png

lff_logos_0043_Enlace.png

705 ms

lff_logos_0041_Everytown-for-Gun-Safety.png

lff_logos_0041_Everytown-for-Gun-Safety.png

675 ms

lff_logos_0039_Grantmakers-for-Thriving-Youth.png

lff_logos_0039_Grantmakers-for-Thriving-Youth.png

721 ms

lff_logos_0023_Museum-of-Science-and-Industry.png

lff_logos_0023_Museum-of-Science-and-Industry.png

715 ms

lff_logos_0031_Lurie-Comprehensive-Cancer-Center.png

lff_logos_0031_Lurie-Comprehensive-Cancer-Center.png

708 ms

lff_logos_0040_Fund-for-a-Safer-Future.png

lff_logos_0040_Fund-for-a-Safer-Future.png

769 ms

lff_logos_0038_Greenhouse-Scholars.png

lff_logos_0038_Greenhouse-Scholars.png

768 ms

lff_logos_0036_Human-Rights-Watch.png

lff_logos_0036_Human-Rights-Watch.png

798 ms

lff_logos_0037_High-Jump.png

lff_logos_0037_High-Jump.png

776 ms

lff_logos_0024_Museum-of-Contemporary-Art.png

lff_logos_0024_Museum-of-Contemporary-Art.png

791 ms

js

js

159 ms

analytics.js

analytics.js

199 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr6Ew-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvr6Ew-.ttf

197 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtZ6Ew-.ttf

199 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w-.ttf

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM70w-.ttf

199 ms

lff_logos_0033_Just-the-Pill.png

lff_logos_0033_Just-the-Pill.png

747 ms

lff_logos_0025_Millenium-Park-Foundation.png

lff_logos_0025_Millenium-Park-Foundation.png

791 ms

lff_logos_0029_MD-Anderson-Cancer-Center.png

lff_logos_0029_MD-Anderson-Cancer-Center.png

747 ms

lff_logos_0035_Jewish-United-Fund.png

lff_logos_0035_Jewish-United-Fund.png

678 ms

lff_logos_0032_Kids-First-Chicago.png

lff_logos_0032_Kids-First-Chicago.png

687 ms

lff_logos_0019_Northwestern-University.png

lff_logos_0019_Northwestern-University.png

706 ms

lff_logos_0027_Men-4-Choice.png

lff_logos_0027_Men-4-Choice.png

869 ms

lff_logos_0022_My-Chi.-My-Future.png

lff_logos_0022_My-Chi.-My-Future.png

709 ms

lff_logos_0014_Ravinia.png

lff_logos_0014_Ravinia.png

785 ms

collect

collect

12 ms

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

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

678 ms

lff_logos_0028_Medical-Missions-for-Children.png

lff_logos_0028_Medical-Missions-for-Children.png

744 ms

lff_logos_0018_OneGoal.png

lff_logos_0018_OneGoal.png

788 ms

lff_logos_0010_Steppenwolf.png

lff_logos_0010_Steppenwolf.png

669 ms

lff_logos_0011_Stanford-Medicine.png

lff_logos_0011_Stanford-Medicine.png

786 ms

lff_logos_0026_Midwest-Access-Project.png

lff_logos_0026_Midwest-Access-Project.png

719 ms

lff_logos_0016_Pitch-In-Wood-Family-Foundation.png

lff_logos_0016_Pitch-In-Wood-Family-Foundation.png

715 ms

lff_logos_0009_The-Renaissance-Society.png

lff_logos_0009_The-Renaissance-Society.png

706 ms

lff_logos_0021_National-Institute-for-Reproductive-Health.png

lff_logos_0021_National-Institute-for-Reproductive-Health.png

710 ms

whitney.png

whitney.png

744 ms

lff_logos_0008_University-of-Chicago.png

lff_logos_0008_University-of-Chicago.png

731 ms

partnership_for_safe_and_peaceful_communities.png

partnership_for_safe_and_peaceful_communities.png

669 ms

lff_logos_0001_Writers-Theater.png

lff_logos_0001_Writers-Theater.png

687 ms

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

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

683 ms

lff_logos_0017_Peer-Health-Exchange.png

lff_logos_0017_Peer-Health-Exchange.png

709 ms

lff_logos_0005_Urban-Initiatives.png

lff_logos_0005_Urban-Initiatives.png

710 ms

lff_logos_0006_University-of-Pennsylvania.png

lff_logos_0006_University-of-Pennsylvania.png

640 ms

lff_logos_0003_Weill-Cornell-Medical.png

lff_logos_0003_Weill-Cornell-Medical.png

667 ms

lff_logos_0013_Sexuality-Information-and-Education-Council-of-the-United-States-SIECUS.png

lff_logos_0013_Sexuality-Information-and-Education-Council-of-the-United-States-SIECUS.png

697 ms

lff_logos_0004_US-Holocaust-Museum.png

lff_logos_0004_US-Holocaust-Museum.png

636 ms

lff_logos_0002_World-Central-Kitchen.png

lff_logos_0002_World-Central-Kitchen.png

803 ms

lff_logos_0000_YLabs.png

lff_logos_0000_YLabs.png

691 ms

sb_logo.png

sb_logo.png

723 ms

ving_logo.png

ving_logo.png

671 ms

hsb_logo.png

hsb_logo.png

649 ms

Accessibility Review

lff.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

lff.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

lff.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 Lff.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 Lff.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

lff.com

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