Tools & Wizards About Us
30sjazz.com screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

30sjazz.com

30s Jazz

Page Load Speed

1.7 sec in total

First Response

201 ms

Resources Loaded

1.2 sec

Page Rendered

276 ms

30sjazz.com screenshot

About Website

Click here to check amazing 30s Jazz content for United States. Otherwise, check out these important facts you probably never knew about 30sjazz.com

A daily jazz party brought to you by JazzontheTube.com

Visit 30sjazz.com

Key Findings

We analyzed 30sjazz.com page load time and found that the first response time was 201 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

30sjazz.com performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

86/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value1,630 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.236

53/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

www.30sjazz.com

201 ms

style.css

31 ms

custom.css

104 ms

jquery-ui-1.8.14.custom.css

59 ms

show_ads.js

5 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 20% of them (12 requests) were addressed to the original 30sjazz.com, 8% (5 requests) were made to Pagead2.googlesyndication.com and 8% (5 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (401 ms) belongs to the original domain 30sjazz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 296.8 kB (26%)

Content Size

1.1 MB

After Optimization

836.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 30sjazz.com main page is 1.1 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. 55% of websites need less resources to load. Images take 666.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 27.3 kB

  • Original 35.0 kB
  • After minification 28.4 kB
  • After compression 7.7 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. This page needs HTML code to be minified as it can gain 6.6 kB, which is 19% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 27.3 kB or 78% of the original size.

Image Optimization

-6%

Potential reduce by 38.9 kB

  • Original 666.7 kB
  • After minification 627.8 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. 30s Jazz images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 209.4 kB

  • Original 403.5 kB
  • After minification 402.5 kB
  • After compression 194.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 209.4 kB or 52% of the original size.

CSS Optimization

-75%

Potential reduce by 21.2 kB

  • Original 28.3 kB
  • After minification 22.3 kB
  • After compression 7.0 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. 30sjazz.com needs all CSS files to be minified and compressed as it can save up to 21.2 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (68%)

Requests Now

53

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 30s Jazz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.30sjazz.com

www.30sjazz.com

201 ms

style.css

style.css

31 ms

custom.css

custom.css

104 ms

jquery-ui-1.8.14.custom.css

jquery-ui-1.8.14.custom.css

59 ms

show_ads.js

show_ads.js

5 ms

buttons.js

buttons.js

29 ms

jquery-1.5.1.min.js

jquery-1.5.1.min.js

89 ms

jquery-ui-1.8.14.custom.min.js

jquery-ui-1.8.14.custom.min.js

58 ms

element.js

element.js

32 ms

ga.js

ga.js

164 ms

ca-pub-6806835162578064.js

ca-pub-6806835162578064.js

263 ms

zrt_lookup.html

zrt_lookup.html

287 ms

show_ads_impl.js

show_ads_impl.js

176 ms

default.jpg

default.jpg

257 ms

translateelement.css

translateelement.css

252 ms

main.js

main.js

260 ms

getAllAppDefault.esi

getAllAppDefault.esi

141 ms

default.jpg

default.jpg

142 ms

default.jpg

default.jpg

142 ms

30sjazz.bg.jpg

30sjazz.bg.jpg

401 ms

30sjazz.banner.jpg

30sjazz.banner.jpg

110 ms

ui-bg_flat_75_ffffff_40x100.png

ui-bg_flat_75_ffffff_40x100.png

109 ms

ui-bg_highlight-soft_75_cccccc_1x100.png

ui-bg_highlight-soft_75_cccccc_1x100.png

108 ms

ui-bg_glass_65_ffffff_1x400.png

ui-bg_glass_65_ffffff_1x400.png

106 ms

ui-bg_glass_75_e6e6e6_1x400.png

ui-bg_glass_75_e6e6e6_1x400.png

156 ms

__utm.gif

__utm.gif

85 ms

ads

ads

231 ms

osd.js

osd.js

36 ms

ads

ads

247 ms

getSegment.php

getSegment.php

11 ms

checkOAuth.esi

checkOAuth.esi

23 ms

t.dhj

t.dhj

10 ms

element_main.js

element_main.js

42 ms

t.dhj

t.dhj

14 ms

x35248

x35248

173 ms

s-3271.xgi

s-3271.xgi

6 ms

translate_24dp.png

translate_24dp.png

48 ms

l

l

61 ms

googlelogo_color_42x16dp.png

googlelogo_color_42x16dp.png

47 ms

hbpix

hbpix

23 ms

11 ms

xrefid.xgi

xrefid.xgi

9 ms

pixel

pixel

22 ms

15 ms

pixel

pixel

42 ms

3549515068641938292

3549515068641938292

53 ms

abg.js

abg.js

64 ms

m_js_controller.js

m_js_controller.js

60 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

37 ms

cm

cm

29 ms

css

css

99 ms

pixel

pixel

17 ms

2981

2981

43 ms

s

s

21 ms

x_button_blue2.png

x_button_blue2.png

5 ms

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js

4 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

53 ms

ui

ui

70 ms

Hgo13k-tfSpn0qi1SFdUfSZ2oysoEQEeKwjgmXLRnTc.ttf

Hgo13k-tfSpn0qi1SFdUfSZ2oysoEQEeKwjgmXLRnTc.ttf

51 ms

Accessibility Review

30sjazz.com accessibility score

59

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Form elements do not have associated labels

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

30sjazz.com best practices score

42

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

30sjazz.com SEO score

62

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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 30sjazz.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 30sjazz.com main page’s claimed encoding is . 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

30sjazz.com

Open Graph data is detected on the main page of 30s Jazz. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: