Tools & Wizards About Us
dancecenter.linesballet.org screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

dancecenter.linesballet.org

Alonzo King LINES Ballet | San Francisco - Official Site

Page Load Speed

2 sec in total

First Response

156 ms

Resources Loaded

1.6 sec

Page Rendered

231 ms

dancecenter.linesballet.org screenshot

About Website

Click here to check amazing Dancecenter LINES Ballet content for United States. Otherwise, check out these important facts you probably never knew about dancecenter.linesballet.org

Alonzo King LINES Ballet | A world-renowned trailblazer, contemporary dance company, education and artistic hub in San Francisco.

Visit dancecenter.linesballet.org

Key Findings

We analyzed Dancecenter.linesballet.org page load time and found that the first response time was 156 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

dancecenter.linesballet.org performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value19.7 s

0/100

25%

SI (Speed Index)

Value33.5 s

0/100

10%

TBT (Total Blocking Time)

Value640 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.0 s

34/100

10%

Network Requests Diagram

156 ms

f1f1e3da-37d3-45f1-8741-828b19933289.js

64 ms

libraries.css

429 ms

grids.css

439 ms

affiliate.css

508 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Dancecenter.linesballet.org, 33% (14 requests) were made to Static.linesballet.org and 14% (6 requests) were made to Fast.fonts.com. The less responsive or slowest element that took the longest time to load (817 ms) relates to the external source Media.linesballet.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 446.1 kB (51%)

Content Size

869.4 kB

After Optimization

423.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dancecenter.linesballet.org main page is 869.4 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. 45% of websites need less resources to load. Javascripts take 572.0 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 52.6 kB

  • Original 73.8 kB
  • After minification 71.9 kB
  • After compression 21.3 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 52.6 kB or 71% of the original size.

Image Optimization

-5%

Potential reduce by 10.3 kB

  • Original 194.5 kB
  • After minification 184.2 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. Dancecenter LINES Ballet images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 359.5 kB

  • Original 572.0 kB
  • After minification 560.3 kB
  • After compression 212.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 359.5 kB or 63% of the original size.

CSS Optimization

-82%

Potential reduce by 23.8 kB

  • Original 29.1 kB
  • After minification 21.5 kB
  • After compression 5.3 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. Dancecenter.linesballet.org needs all CSS files to be minified and compressed as it can save up to 23.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (63%)

Requests Now

35

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dancecenter LINES Ballet. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

156 ms

f1f1e3da-37d3-45f1-8741-828b19933289.js

f1f1e3da-37d3-45f1-8741-828b19933289.js

64 ms

libraries.css

libraries.css

429 ms

grids.css

grids.css

439 ms

affiliate.css

affiliate.css

508 ms

jquery.fancybox.css

jquery.fancybox.css

443 ms

addthis_widget.js

addthis_widget.js

11 ms

livesearch.js

livesearch.js

443 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

679 ms

jquery.labelify.js

jquery.labelify.js

494 ms

jquery.easing-1.3.pack.js

jquery.easing-1.3.pack.js

503 ms

jquery.mousewheel-3.0.6.pack.js

jquery.mousewheel-3.0.6.pack.js

508 ms

jquery.fancybox.pack.js

jquery.fancybox.pack.js

510 ms

common.js

common.js

561 ms

affiliate.js

affiliate.js

570 ms

DC2015_3.jpg

DC2015_3.jpg

817 ms

bcf54343-d033-41ee-bbd7-2b77df3fe7ba.woff

bcf54343-d033-41ee-bbd7-2b77df3fe7ba.woff

104 ms

2c056da8-4920-4e20-8c69-8a6b315458a9.woff

2c056da8-4920-4e20-8c69-8a6b315458a9.woff

105 ms

60be5c39-863e-40cb-9434-6ebafb62ab2b.woff

60be5c39-863e-40cb-9434-6ebafb62ab2b.woff

97 ms

aef05e22-e1d4-4e59-bc2e-a71c13c26cca.woff

aef05e22-e1d4-4e59-bc2e-a71c13c26cca.woff

97 ms

102ab74c-0e84-4fe5-a17a-b20fb643591a.woff

102ab74c-0e84-4fe5-a17a-b20fb643591a.woff

96 ms

d93e757e1104.png

d93e757e1104.png

9 ms

social.css

social.css

70 ms

widgets.js

widgets.js

98 ms

analytics.js

analytics.js

11 ms

all.js

all.js

166 ms

social.png

social.png

158 ms

cf5f02a7dec1.png

cf5f02a7dec1.png

80 ms

ga.js

ga.js

53 ms

300lo.json

300lo.json

157 ms

sh.8e5f85691f9aaa082472a194.html

sh.8e5f85691f9aaa082472a194.html

146 ms

collect

collect

132 ms

timeline.d11f7a3b3287fb94220e8ee6d03cc772.js

timeline.d11f7a3b3287fb94220e8ee6d03cc772.js

152 ms

__utm.gif

__utm.gif

40 ms

collect

collect

90 ms

179 ms

xd_arbiter.php

xd_arbiter.php

166 ms

xd_arbiter.php

xd_arbiter.php

320 ms

syndication

syndication

124 ms

661263088671326208

661263088671326208

182 ms

timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css

timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css

28 ms

timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css

timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css

94 ms

Accessibility Review

dancecenter.linesballet.org accessibility score

68

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

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

ARIA toggle fields do not have accessible names

High

[aria-*] attributes do not have valid values

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

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

dancecenter.linesballet.org best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dancecenter.linesballet.org SEO score

99

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dancecenter.linesballet.org 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 Dancecenter.linesballet.org 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

dancecenter.linesballet.org

Open Graph description is not detected on the main page of Dancecenter LINES Ballet. 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: