Tools & Wizards About Us
jazzbob.com screenshot

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

jazzbob.com

Jazz Bob - Home of Bob Bernotas, Jazz Journalist, Author, Broadcaster

Page Load Speed

1.2 sec in total

First Response

114 ms

Resources Loaded

936 ms

Page Rendered

132 ms

jazzbob.com screenshot

About Website

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

I write about jazz because I like jazz. Just as much, I write about jazz musicians because I like jazz musicians. Without question, the most intelligent.

Visit jazzbob.com

Key Findings

We analyzed Jazzbob.com page load time and found that the first response time was 114 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

jazzbob.com performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

79/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

jazzbob.com

114 ms

jazzbob.com

496 ms

style.css

38 ms

menu.css

75 ms

frame.html

134 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 87% of them (26 requests) were addressed to the original Jazzbob.com, 7% (2 requests) were made to Jazzcorner.com and 7% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (496 ms) belongs to the original domain Jazzbob.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 28.8 kB (21%)

Content Size

135.9 kB

After Optimization

107.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jazzbob.com main page is 135.9 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. Only 10% of websites need less resources to load. Images take 107.8 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 4.5 kB

  • Original 7.3 kB
  • After minification 7.2 kB
  • After compression 2.8 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 4.5 kB or 61% of the original size.

Image Optimization

-20%

Potential reduce by 21.3 kB

  • Original 107.8 kB
  • After minification 86.5 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. Obviously, Jazz Bob needs image optimization as it can save up to 21.3 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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

-81%

Potential reduce by 3.0 kB

  • Original 3.8 kB
  • After minification 3.2 kB
  • After compression 710 B

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. Jazzbob.com needs all CSS files to be minified and compressed as it can save up to 3.0 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (18%)

Requests Now

28

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

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

Network Requests Diagram

jazzbob.com

jazzbob.com

114 ms

jazzbob.com

jazzbob.com

496 ms

style.css

style.css

38 ms

menu.css

menu.css

75 ms

frame.html

frame.html

134 ms

header_top.jpg

header_top.jpg

166 ms

header_home.jpg

header_home.jpg

165 ms

rtbx_top.gif

rtbx_top.gif

132 ms

home_footer.png

home_footer.png

131 ms

ga.js

ga.js

22 ms

bg.gif

bg.gif

56 ms

tableBG.gif

tableBG.gif

107 ms

menu_home.gif

menu_home.gif

92 ms

menu_biography.gif

menu_biography.gif

92 ms

menu_writing.gif

menu_writing.gif

92 ms

menu_sub_books.gif

menu_sub_books.gif

126 ms

menu_sub_linernotes.gif

menu_sub_linernotes.gif

127 ms

menu_sub_reviews.gif

menu_sub_reviews.gif

128 ms

menu_sub_articles.gif

menu_sub_articles.gif

128 ms

menu_gallery.gif

menu_gallery.gif

130 ms

menu_radio.gif

menu_radio.gif

143 ms

menu_newsletter.gif

menu_newsletter.gif

161 ms

menu_rutgers.gif

menu_rutgers.gif

164 ms

menu_links.gif

menu_links.gif

164 ms

menu_contact.gif

menu_contact.gif

164 ms

menu_bottom.gif

menu_bottom.gif

165 ms

home_bg.jpg

home_bg.jpg

249 ms

rtbx_middle.gif

rtbx_middle.gif

198 ms

__utm.gif

__utm.gif

13 ms

jazz_corner_logo.png

jazz_corner_logo.png

4 ms

Accessibility Review

jazzbob.com accessibility score

54

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

jazzbob.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

jazzbob.com SEO score

58

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jazzbob.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Jazzbob.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

jazzbob.com

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