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coltranejazzfest.com screenshot

Report Summary

  • 2

    Performance

    Renders faster than
    20% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

coltranejazzfest.com

John Coltrane International Jazz and Blues Festival (JCIJBF) | John Coltrane International Jazz & Blues Festival

Page Load Speed

1.3 sec in total

First Response

59 ms

Resources Loaded

876 ms

Page Rendered

377 ms

coltranejazzfest.com screenshot

About Website

Welcome to coltranejazzfest.com homepage info - get ready to check Coltrane Jazz Fest best content right away, or after learning these important things about coltranejazzfest.com

Named “One Of The Best Jazz Festivals In The U.S,'' by Jazz Observer, the John Coltrane International Jazz and Blues Festival (JCIJBF) honors the ...

Visit coltranejazzfest.com

Key Findings

We analyzed Coltranejazzfest.com page load time and found that the first response time was 59 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

coltranejazzfest.com performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value39.3 s

0/100

25%

SI (Speed Index)

Value21.7 s

0/100

10%

TBT (Total Blocking Time)

Value3,500 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value1.017

2/100

15%

TTI (Time to Interactive)

Value34.1 s

0/100

10%

Network Requests Diagram

coltranejazzfest.com

59 ms

coltranejazzfest.com

52 ms

sFTTUA33cv3ZbDg9cze240naRpI.js

12 ms

mappress.css

32 ms

admin-styles.css

36 ms

Our browser made a total of 145 requests to load all elements on the main page. We found that 53% of them (77 requests) were addressed to the original Coltranejazzfest.com, 37% (54 requests) were made to Fonts.gstatic.com and 3% (5 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (341 ms) relates to the external source Player.vimeo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 293.1 kB (53%)

Content Size

553.4 kB

After Optimization

260.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coltranejazzfest.com main page is 553.4 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 a small number of websites need less resources to load. HTML takes 330.6 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 293.0 kB

  • Original 330.6 kB
  • After minification 302.0 kB
  • After compression 37.6 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 293.0 kB or 89% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 83.7 kB
  • After minification 83.7 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. Coltrane Jazz Fest images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 27.6 kB
  • After minification 27.6 kB
  • After compression 27.6 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 116 B

  • Original 111.5 kB
  • After minification 111.5 kB
  • After compression 111.4 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. Coltranejazzfest.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 75 (94%)

Requests Now

80

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coltrane Jazz Fest. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 47 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

coltranejazzfest.com

coltranejazzfest.com

59 ms

coltranejazzfest.com

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52 ms

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Accessibility Review

coltranejazzfest.com accessibility score

58

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

coltranejazzfest.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

coltranejazzfest.com SEO score

85

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

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 Coltranejazzfest.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 Coltranejazzfest.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

coltranejazzfest.com

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