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semensemble.org screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

semensemble.org

S.E.M. Ensemble

Page Load Speed

4.6 sec in total

First Response

263 ms

Resources Loaded

4 sec

Page Rendered

296 ms

semensemble.org screenshot

About Website

Welcome to semensemble.org homepage info - get ready to check S E M Ensemble best content right away, or after learning these important things about semensemble.org

Founded by Petr Kotik, the S.E.M. Ensemble is one of the oldest new music ensembles in the U.S., performing and producing concerts continuously since 1970.

Visit semensemble.org

Key Findings

We analyzed Semensemble.org page load time and found that the first response time was 263 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

semensemble.org performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.3 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value10.5 s

8/100

10%

TBT (Total Blocking Time)

Value230 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.299

40/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

semensemble.org

263 ms

semensemble.org

1310 ms

base.css

81 ms

ckeditor.css

157 ms

prettyPhoto.css

231 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 75% of them (48 requests) were addressed to the original Semensemble.org, 9% (6 requests) were made to Cdnjs.cloudflare.com and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Semensemble.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 668.0 kB (40%)

Content Size

1.7 MB

After Optimization

998.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Semensemble.org main page is 1.7 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. 45% of websites need less resources to load. Javascripts take 824.2 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 57.7 kB

  • Original 67.9 kB
  • After minification 63.4 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 57.7 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 8.4 kB

  • Original 703.6 kB
  • After minification 695.2 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. S E M Ensemble images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 594.5 kB

  • Original 824.2 kB
  • After minification 799.3 kB
  • After compression 229.7 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 594.5 kB or 72% of the original size.

CSS Optimization

-10%

Potential reduce by 7.4 kB

  • Original 71.0 kB
  • After minification 71.0 kB
  • After compression 63.6 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. Semensemble.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 42 (70%)

Requests Now

60

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of S E M Ensemble. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

semensemble.org

semensemble.org

263 ms

semensemble.org

semensemble.org

1310 ms

base.css

base.css

81 ms

ckeditor.css

ckeditor.css

157 ms

prettyPhoto.css

prettyPhoto.css

231 ms

superfish.css

superfish.css

230 ms

video-js.css

video-js.css

233 ms

slicebox.css

slicebox.css

230 ms

nivo-slider.css

nivo-slider.css

231 ms

owl.carousel.css

owl.carousel.css

233 ms

justifiedGallery.min.css

justifiedGallery.min.css

308 ms

animation.css

animation.css

308 ms

ui-dialog.css

ui-dialog.css

310 ms

jquery-jvectormap-2.0.2.css

jquery-jvectormap-2.0.2.css

306 ms

lightbox.css

lightbox.css

309 ms

base-min.css

base-min.css

310 ms

grids-min.css

grids-min.css

384 ms

grids-responsive.css

grids-responsive.css

385 ms

grids-custom.css

grids-custom.css

385 ms

altgrid.css

altgrid.css

385 ms

modal.css

modal.css

386 ms

credentials.css

credentials.css

385 ms

bs4embeddable.css

bs4embeddable.css

541 ms

font-awesome-extensions.css

font-awesome-extensions.css

460 ms

bootstrap.css

bootstrap.css

459 ms

style.css

style.css

524 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

610 ms

jquery-ui-1.12.1.min.js

jquery-ui-1.12.1.min.js

1063 ms

i18n.js

i18n.js

609 ms

imagesloaded.min.js

imagesloaded.min.js

535 ms

en.js

en.js

600 ms

xregexp-all.min.js

xregexp-all.min.js

41 ms

jquery.jplayer.js

jquery.jplayer.js

42 ms

jplayer.playlist.min.js

jplayer.playlist.min.js

46 ms

jquery.asterion.utils.ui.js

jquery.asterion.utils.ui.js

616 ms

jquery.asterion.link-intercept.js

jquery.asterion.link-intercept.js

617 ms

galleria.js

galleria.js

46 ms

spectrum.min.js

spectrum.min.js

51 ms

proMarket

proMarket

473 ms

asterion.js

asterion.js

977 ms

font-awesome.min.css

font-awesome.min.css

45 ms

spectrum.min.css

spectrum.min.css

46 ms

jquery.nivo.slider.js

jquery.nivo.slider.js

757 ms

css

css

48 ms

css

css

22 ms

8dcfce01-7c3e-44f6-b240-a7fe229edae6.jpg

8dcfce01-7c3e-44f6-b240-a7fe229edae6.jpg

158 ms

close.png

close.png

81 ms

loading.gif

loading.gif

81 ms

prev.png

prev.png

80 ms

next.png

next.png

80 ms

1170;780;4b52b690a46c890780702524797ca98b33320cb3.jpg

1170;780;4b52b690a46c890780702524797ca98b33320cb3.jpg

431 ms

800;530;a2d9dc15eaf1e57ffaacbd7e63a42e03c3aea59b.jpg

800;530;a2d9dc15eaf1e57ffaacbd7e63a42e03c3aea59b.jpg

492 ms

800;530;85c5e0f86b6ea89025e371428e90a30de2332e33.jpg

800;530;85c5e0f86b6ea89025e371428e90a30de2332e33.jpg

579 ms

800;530;c1f122521c2fefe393496addf211456129820d60.jpg

800;530;c1f122521c2fefe393496addf211456129820d60.jpg

907 ms

1170;668;3b3fccfaf9e8aea0fde12aa9b1609feeeecd53fb.png

1170;668;3b3fccfaf9e8aea0fde12aa9b1609feeeecd53fb.png

1148 ms

1170;777;311863f7f94e464d109cb9191656ec481d130c40.png

1170;777;311863f7f94e464d109cb9191656ec481d130c40.png

1340 ms

1170;1594;bf49d888d37d0ffe402ffeaf7a9262fdfa8bb9c8.jpg

1170;1594;bf49d888d37d0ffe402ffeaf7a9262fdfa8bb9c8.jpg

821 ms

facebook.png

facebook.png

578 ms

twitter.png

twitter.png

655 ms

e21fc073-8b77-49c0-8bd7-5e5ccc98189a.jpg

e21fc073-8b77-49c0-8bd7-5e5ccc98189a.jpg

220 ms

site-125361.js

site-125361.js

152 ms

S6uyw4BMUTPHjx4wWw.ttf

S6uyw4BMUTPHjx4wWw.ttf

74 ms

ZgNJjOVHM6jfUZCmyUqT2A2HVKjc-18gPnI.ttf

ZgNJjOVHM6jfUZCmyUqT2A2HVKjc-18gPnI.ttf

19 ms

engine

engine

59 ms

Accessibility Review

semensemble.org accessibility score

60

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.

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

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

semensemble.org best practices score

75

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

semensemble.org 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

    N/A

  • Encoding

    UTF-8

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

semensemble.org

Open Graph data is detected on the main page of S E M Ensemble. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: