Tools & Wizards About Us
williamlkatz.com screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

williamlkatz.com

William Loren Katz | Black Indians — The official Web site for William Loren Katz historian, lecturer and author of Black Indians: A Hidden Heritage.

Page Load Speed

4.1 sec in total

First Response

111 ms

Resources Loaded

3.9 sec

Page Rendered

152 ms

williamlkatz.com screenshot

About Website

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

The official Web site of historian, lecturer and writer of William Loren Katz, author of The Black West, Black Indians and 40 other titles.

Visit williamlkatz.com

Key Findings

We analyzed Williamlkatz.com page load time and found that the first response time was 111 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

williamlkatz.com performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value7.5 s

47/100

10%

Network Requests Diagram

williamlkatz.com

111 ms

williamlkatz.com

3668 ms

style.css

22 ms

layout.css

23 ms

custom.css

22 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 78% of them (32 requests) were addressed to the original Williamlkatz.com, 10% (4 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Williamlkatz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 384.1 kB (49%)

Content Size

781.8 kB

After Optimization

397.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Williamlkatz.com main page is 781.8 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. 40% of websites need less resources to load. Javascripts take 352.4 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 22.6 kB

  • Original 31.4 kB
  • After minification 31.2 kB
  • After compression 8.8 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 22.6 kB or 72% of the original size.

Image Optimization

-1%

Potential reduce by 3.2 kB

  • Original 276.1 kB
  • After minification 272.9 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. William L Katz images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 252.4 kB

  • Original 352.4 kB
  • After minification 316.2 kB
  • After compression 100.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 252.4 kB or 72% of the original size.

CSS Optimization

-87%

Potential reduce by 106.0 kB

  • Original 121.9 kB
  • After minification 94.6 kB
  • After compression 15.9 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. Williamlkatz.com needs all CSS files to be minified and compressed as it can save up to 106.0 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (66%)

Requests Now

29

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of William L Katz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

williamlkatz.com

williamlkatz.com

111 ms

williamlkatz.com

williamlkatz.com

3668 ms

style.css

style.css

22 ms

layout.css

layout.css

23 ms

custom.css

custom.css

22 ms

styles.css

styles.css

27 ms

css

css

73 ms

slidedeck.css

slidedeck.css

28 ms

jquery.js

jquery.js

28 ms

jquery-migrate.js

jquery-migrate.js

26 ms

fdfootnotes.js

fdfootnotes.js

26 ms

js

js

98 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

31 ms

slidedeck.jquery.js

slidedeck.jquery.js

29 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

29 ms

slidedeck-public.js

slidedeck-public.js

33 ms

widgets.js

widgets.js

29 ms

skin.css

skin.css

24 ms

css

css

23 ms

twemoji.js

twemoji.js

41 ms

wp-emoji.js

wp-emoji.js

41 ms

home1.png

home1.png

5 ms

dot-ddd.gif

dot-ddd.gif

21 ms

home1.png

home1.png

8 ms

Bill-lecturing-300x275.jpg

Bill-lecturing-300x275.jpg

6 ms

9781682752265-199x300.jpg

9781682752265-199x300.jpg

9 ms

BreakingChains.jpg

BreakingChains.jpg

6 ms

BlackWomen.jpg

BlackWomen.jpg

7 ms

Black-Legact-cover-241x300.jpg

Black-Legact-cover-241x300.jpg

8 ms

scripts.js

scripts.js

7 ms

wp-embed.js

wp-embed.js

6 ms

Bill-lecturing-300x275.jpg

Bill-lecturing-300x275.jpg

5 ms

BreakingChains.jpg

BreakingChains.jpg

5 ms

BlackWomen.jpg

BlackWomen.jpg

4 ms

Black-Legact-cover-241x300.jpg

Black-Legact-cover-241x300.jpg

4 ms

9781682752265-199x300.jpg

9781682752265-199x300.jpg

6 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

19 ms

SlGVmQWMvZQIdix7AFxXkHNSaA.ttf

SlGVmQWMvZQIdix7AFxXkHNSaA.ttf

19 ms

SlGWmQWMvZQIdix7AFxXmMh3eDs1Yg.ttf

SlGWmQWMvZQIdix7AFxXmMh3eDs1Yg.ttf

26 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

25 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYA.ttf

26 ms

Accessibility Review

williamlkatz.com accessibility score

90

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

williamlkatz.com best practices score

50

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

williamlkatz.com SEO score

79

Search Engine Optimization Advices

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 Williamlkatz.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 Williamlkatz.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

williamlkatz.com

Open Graph description is not detected on the main page of William L Katz. 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: