Tools & Wizards About Us
dulwichoperacompany.org.uk screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

dulwichoperacompany.org.uk

Dulwich opera company - Outstanding Chamber Opera in London and Beyond

Page Load Speed

2.2 sec in total

First Response

235 ms

Resources Loaded

1.7 sec

Page Rendered

285 ms

dulwichoperacompany.org.uk screenshot

About Website

Welcome to dulwichoperacompany.org.uk homepage info - get ready to check Dulwich Opera Company best content right away, or after learning these important things about dulwichoperacompany.org.uk

Now touring with a highly acclaimed production of Mozart's Così fan tutte - next performances in Kent, Yorkshire, and London

Visit dulwichoperacompany.org.uk

Key Findings

We analyzed Dulwichoperacompany.org.uk page load time and found that the first response time was 235 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

dulwichoperacompany.org.uk performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value23.4 s

0/100

25%

SI (Speed Index)

Value12.3 s

3/100

10%

TBT (Total Blocking Time)

Value3,110 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value24.4 s

0/100

10%

Network Requests Diagram

dulwichoperacompany.org.uk

235 ms

www.dulwichoperacompany.org.uk

226 ms

www.dulwichoperacompany.org.uk

269 ms

analytics.js

17 ms

sites.css

32 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 34% of them (19 requests) were addressed to the original Dulwichoperacompany.org.uk, 38% (21 requests) were made to Cdn2.editmysite.com and 13% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (647 ms) relates to the external source Youtube.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 316.9 kB (15%)

Content Size

2.1 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dulwichoperacompany.org.uk main page is 2.1 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. 70% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 50.1 kB

  • Original 60.4 kB
  • After minification 58.2 kB
  • After compression 10.2 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 50.1 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 257 B

  • Original 1.0 MB
  • After minification 1.0 MB

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. Dulwich Opera Company images are well optimized though.

JavaScript Optimization

-28%

Potential reduce by 263.4 kB

  • Original 954.3 kB
  • After minification 954.1 kB
  • After compression 690.9 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 263.4 kB or 28% of the original size.

CSS Optimization

-3%

Potential reduce by 3.1 kB

  • Original 101.2 kB
  • After minification 101.2 kB
  • After compression 98.1 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. Dulwichoperacompany.org.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 26 (60%)

Requests Now

43

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dulwich Opera Company. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dulwichoperacompany.org.uk

dulwichoperacompany.org.uk

235 ms

www.dulwichoperacompany.org.uk

www.dulwichoperacompany.org.uk

226 ms

www.dulwichoperacompany.org.uk

www.dulwichoperacompany.org.uk

269 ms

analytics.js

analytics.js

17 ms

sites.css

sites.css

32 ms

fancybox.css

fancybox.css

86 ms

social-icons.css

social-icons.css

192 ms

main_style.css

main_style.css

138 ms

font.css

font.css

42 ms

font.css

font.css

43 ms

font.css

font.css

43 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

43 ms

stl.js

stl.js

47 ms

main.js

main.js

61 ms

collect

collect

21 ms

js

js

63 ms

embed.js

embed.js

23 ms

email-decode.min.js

email-decode.min.js

3 ms

plugins.js

plugins.js

240 ms

custom.js

custom.js

213 ms

mobile.js

mobile.js

213 ms

main-customer-accounts-site.js

main-customer-accounts-site.js

5 ms

js

js

61 ms

fbevents.js

fbevents.js

190 ms

oWzx-cMNOXw

oWzx-cMNOXw

252 ms

n1evJnIINuY

n1evJnIINuY

582 ms

ZA_JRQlLxo0

ZA_JRQlLxo0

647 ms

text5473.png

text5473.png

167 ms

210419977.jpg

210419977.jpg

216 ms

c-alex-brenner-no-use-without-credit-dulwich-opera-company-cosi-fan-tutte-dsc9991-small_1.jpg

c-alex-brenner-no-use-without-credit-dulwich-opera-company-cosi-fan-tutte-dsc9991-small_1.jpg

165 ms

a-night-at-the-opera-photo-cropped.jpg

a-night-at-the-opera-photo-cropped.jpg

166 ms

doc-cosi-42-please-credit-robert-workman.jpg

doc-cosi-42-please-credit-robert-workman.jpg

167 ms

c-alex-brenner-no-usage-without-credit-dulwich-opera-company-carmen-all-saints-st-albans-dsc5114_1.jpg

c-alex-brenner-no-usage-without-credit-dulwich-opera-company-carmen-all-saints-st-albans-dsc5114_1.jpg

219 ms

dsc-0150-1.jpeg

dsc-0150-1.jpeg

216 ms

october-2016-250.jpg

october-2016-250.jpg

218 ms

mg-2603.jpg

mg-2603.jpg

217 ms

sophie-conlon.jpg

sophie-conlon.jpg

216 ms

october-2016-463_2.jpg

october-2016-463_2.jpg

218 ms

medium.woff

medium.woff

119 ms

regular.woff

regular.woff

120 ms

light.woff

light.woff

121 ms

ultralight.woff

ultralight.woff

120 ms

semibold.woff

semibold.woff

121 ms

bold.woff

bold.woff

120 ms

regular.woff

regular.woff

96 ms

light.woff

light.woff

97 ms

bold.woff

bold.woff

96 ms

wsocial.woff

wsocial.woff

97 ms

ga.js

ga.js

106 ms

snowday262.js

snowday262.js

59 ms

www-player.css

www-player.css

18 ms

www-embed-player.js

www-embed-player.js

17 ms

base.js

base.js

64 ms

ad_status.js

ad_status.js

362 ms

4-NlEi-7NY8SQPLCpX1INlyCg7Vzxjxgly2SzKIOrZg.js

4-NlEi-7NY8SQPLCpX1INlyCg7Vzxjxgly2SzKIOrZg.js

313 ms

embed.js

embed.js

178 ms

Accessibility Review

dulwichoperacompany.org.uk accessibility score

83

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

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

High

Image elements do not have [alt] attributes

Best Practices

dulwichoperacompany.org.uk 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

dulwichoperacompany.org.uk SEO score

82

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

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

    EN

  • Encoding

    UTF-8

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

dulwichoperacompany.org.uk

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