Tools & Wizards About Us
operundtanz.de screenshot

Report Summary

  • 78

    Performance

    Renders faster than
    85% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

operundtanz.de

Oper & Tanz. Zeitschrift für Opernchor und Bühnentanz

Page Load Speed

4.2 sec in total

First Response

700 ms

Resources Loaded

3.3 sec

Page Rendered

181 ms

operundtanz.de screenshot

About Website

Visit operundtanz.de now to see the best up-to-date Oper Und Tanz content for Germany and also check out these interesting facts you probably never knew about operundtanz.de

Oper und Tanz ist die Zeitschrift der Vereinigung deutscher Opernchöre und Bühnentänzer. Sie erscheint 6 mal im Jahr.

Visit operundtanz.de

Key Findings

We analyzed Operundtanz.de page load time and found that the first response time was 700 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

operundtanz.de performance score

78

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

operundtanz.de

700 ms

ot.css

190 ms

prototype.js

856 ms

scriptaculous.js

194 ms

lightbox.js

286 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that all of those requests were addressed to Operundtanz.de and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Operundtanz.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 207.6 kB (67%)

Content Size

307.6 kB

After Optimization

100.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Operundtanz.de main page is 307.6 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. 15% of websites need less resources to load. Javascripts take 228.0 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 16.8 kB

  • Original 22.7 kB
  • After minification 20.1 kB
  • After compression 5.9 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 2.7 kB, which is 12% 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 16.8 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 10 B

  • Original 49.7 kB
  • After minification 49.6 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. Oper Und Tanz images are well optimized though.

JavaScript Optimization

-81%

Potential reduce by 185.0 kB

  • Original 228.0 kB
  • After minification 166.2 kB
  • After compression 43.0 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 185.0 kB or 81% of the original size.

CSS Optimization

-79%

Potential reduce by 5.7 kB

  • Original 7.2 kB
  • After minification 6.1 kB
  • After compression 1.5 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. Operundtanz.de needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (37%)

Requests Now

49

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oper Und Tanz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

operundtanz.de

operundtanz.de

700 ms

ot.css

ot.css

190 ms

prototype.js

prototype.js

856 ms

scriptaculous.js

scriptaculous.js

194 ms

lightbox.js

lightbox.js

286 ms

lightbox.css

lightbox.css

192 ms

effects.js

effects.js

381 ms

builder.js

builder.js

193 ms

ot-logo-big.jpg

ot-logo-big.jpg

285 ms

titelzeile.gif

titelzeile.gif

193 ms

aktuell.gif

aktuell.gif

191 ms

news.gif

news.gif

193 ms

archiv.gif

archiv.gif

194 ms

stellenmarkt.gif

stellenmarkt.gif

194 ms

abo.gif

abo.gif

382 ms

anzeigen.gif

anzeigen.gif

382 ms

kontakt.gif

kontakt.gif

383 ms

back.gif

back.gif

384 ms

vdo-logo.jpg

vdo-logo.jpg

386 ms

nmz-button.gif

nmz-button.gif

475 ms

kiz-button.jpg

kiz-button.jpg

570 ms

taktlos-button.jpg

taktlos-button.jpg

573 ms

jazz-button.jpg

jazz-button.jpg

570 ms

point-red.gif

point-red.gif

574 ms

z-2016_01_titelseite.jpg

z-2016_01_titelseite.jpg

574 ms

kupo.gif

kupo.gif

664 ms

hintergrund.gif

hintergrund.gif

759 ms

portrait.gif

portrait.gif

760 ms

berichte.gif

berichte.gif

761 ms

rezensionen.gif

rezensionen.gif

762 ms

ot-aktuell.gif

ot-aktuell.gif

763 ms

service.gif

service.gif

853 ms

l-oben.gif

l-oben.gif

948 ms

null.gif

null.gif

949 ms

r-oben.gif

r-oben.gif

950 ms

editorial.gif

editorial.gif

951 ms

z-2016_01_editorial.jpg

z-2016_01_editorial.jpg

952 ms

l-unten.gif

l-unten.gif

1042 ms

r-unten.gif

r-unten.gif

1137 ms

point-blue.gif

point-blue.gif

1139 ms

loading.gif

loading.gif

1141 ms

closelabel.gif

closelabel.gif

1142 ms

aktuell-over.gif

aktuell-over.gif

98 ms

news-over.gif

news-over.gif

191 ms

archiv-over.gif

archiv-over.gif

191 ms

stellenmarkt-over.gif

stellenmarkt-over.gif

191 ms

abo-over.gif

abo-over.gif

191 ms

kontakt-over.gif

kontakt-over.gif

191 ms

back-over.gif

back-over.gif

284 ms

anzeigen-over.gif

anzeigen-over.gif

378 ms

Accessibility Review

operundtanz.de accessibility score

60

Accessibility Issues

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

operundtanz.de best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

operundtanz.de SEO score

69

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Operundtanz.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Operundtanz.de 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

operundtanz.de

Open Graph description is not detected on the main page of Oper Und Tanz. 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: