Report Summary

  • 27

    Performance

    Renders faster than
    47% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

stlouisballet.org

St. Louis Ballet

Page Load Speed

620 ms in total

First Response

81 ms

Resources Loaded

374 ms

Page Rendered

165 ms

stlouisballet.org screenshot

About Website

Welcome to stlouisballet.org homepage info - get ready to check St Louis Ballet best content for United States right away, or after learning these important things about stlouisballet.org

St. Louis' professional ballet company offers 4 mainstage performances at the Touhill Performing Arts Center each season. Directed by Gen Horiuchi.

Visit stlouisballet.org

Key Findings

We analyzed Stlouisballet.org page load time and found that the first response time was 81 ms and then it took 539 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

stlouisballet.org performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value3,550 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value18.0 s

3/100

10%

Network Requests Diagram

stlouisballet.org

81 ms

css

25 ms

user.js

29 ms

jquery.js

71 ms

simplegallery.js

53 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 78% of them (36 requests) were addressed to the original Stlouisballet.org, 7% (3 requests) were made to S7.addthis.com and 4% (2 requests) were made to Paypal.com. The less responsive or slowest element that took the longest time to load (125 ms) belongs to the original domain Stlouisballet.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 491.2 kB (38%)

Content Size

1.3 MB

After Optimization

797.3 kB

In fact, the total size of Stlouisballet.org main page is 1.3 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. 40% of websites need less resources to load. Images take 639.3 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 104.8 kB

  • Original 137.6 kB
  • After minification 136.7 kB
  • After compression 32.8 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 104.8 kB or 76% of the original size.

Image Optimization

-6%

Potential reduce by 36.7 kB

  • Original 639.3 kB
  • After minification 602.6 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. St Louis Ballet images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 325.4 kB

  • Original 483.2 kB
  • After minification 464.8 kB
  • After compression 157.8 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 325.4 kB or 67% of the original size.

CSS Optimization

-85%

Potential reduce by 24.3 kB

  • Original 28.4 kB
  • After minification 20.1 kB
  • After compression 4.1 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. Stlouisballet.org needs all CSS files to be minified and compressed as it can save up to 24.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (32%)

Requests Now

41

After Optimization

28

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of St Louis 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 8 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

stlouisballet.org accessibility score

82

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

stlouisballet.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

High

Page has valid source maps

SEO Factors

stlouisballet.org SEO score

77

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

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 Stlouisballet.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 Stlouisballet.org 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

Open Graph description is not detected on the main page of St Louis 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: