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tango-vienna.com screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 44

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

tango-vienna.com

Aktuelle Events | *Alle Veranstalter* | Tango Argentino in Wien | www.tango-vienna.com

Page Load Speed

3.3 sec in total

First Response

250 ms

Resources Loaded

2.3 sec

Page Rendered

713 ms

tango-vienna.com screenshot

About Website

Welcome to tango-vienna.com homepage info - get ready to check Tango Vienna best content for Austria right away, or after learning these important things about tango-vienna.com

Der Kalender für die Wiener Tangoszene. Er bietet eine Übersicht über alle Milongas, Practicas, Workshops und Kurse sowie sonstige Veranstaltungen rund um den Tango Argentino in Wien und Umgebung.

Visit tango-vienna.com

Key Findings

We analyzed Tango-vienna.com page load time and found that the first response time was 250 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

tango-vienna.com performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value4,900 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value11.0 s

21/100

10%

Network Requests Diagram

tango-vienna.com

250 ms

www.tango-vienna.com

256 ms

calendar.php

760 ms

tango.css

201 ms

javascripts.js

297 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 50% of them (14 requests) were addressed to the original Tango-vienna.com, 25% (7 requests) were made to Apis.google.com and 7% (2 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (760 ms) belongs to the original domain Tango-vienna.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 198.9 kB (66%)

Content Size

301.1 kB

After Optimization

102.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tango-vienna.com main page is 301.1 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. 30% of websites need less resources to load. HTML takes 167.7 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 147.8 kB

  • Original 167.7 kB
  • After minification 161.7 kB
  • After compression 19.9 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. 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 147.8 kB or 88% of the original size.

Image Optimization

-2%

Potential reduce by 254 B

  • Original 13.8 kB
  • After minification 13.5 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. Tango Vienna images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 28.3 kB

  • Original 94.2 kB
  • After minification 87.0 kB
  • After compression 66.0 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 28.3 kB or 30% of the original size.

CSS Optimization

-89%

Potential reduce by 22.6 kB

  • Original 25.3 kB
  • After minification 19.5 kB
  • After compression 2.7 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. Tango-vienna.com needs all CSS files to be minified and compressed as it can save up to 22.6 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (33%)

Requests Now

21

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tango Vienna. 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 as a result speed up the page load time.

Network Requests Diagram

tango-vienna.com

tango-vienna.com

250 ms

www.tango-vienna.com

www.tango-vienna.com

256 ms

calendar.php

calendar.php

760 ms

tango.css

tango.css

201 ms

javascripts.js

javascripts.js

297 ms

icon_traditional.jpg

icon_traditional.jpg

175 ms

icon_mixed.jpg

icon_mixed.jpg

192 ms

icon_outdoor.jpg

icon_outdoor.jpg

213 ms

icon_cancelled.jpg

icon_cancelled.jpg

212 ms

icon_live.jpg

icon_live.jpg

123 ms

icon_modern.jpg

icon_modern.jpg

122 ms

fb_join.png

fb_join.png

122 ms

rss.png

rss.png

241 ms

like.php

like.php

371 ms

plusone.js

plusone.js

78 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

69 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

135 ms

fastbutton

fastbutton

128 ms

sharebutton

sharebutton

125 ms

tango_print.css

tango_print.css

134 ms

postmessageRelay

postmessageRelay

133 ms

9ob6Hkob7wt.js

9ob6Hkob7wt.js

79 ms

FEppCFCt76d.png

FEppCFCt76d.png

168 ms

developers.google.com

developers.google.com

304 ms

developers.google.com

developers.google.com

597 ms

1832714284-postmessagerelay.js

1832714284-postmessagerelay.js

111 ms

rpc:shindig_random.js

rpc:shindig_random.js

100 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

15 ms

Accessibility Review

tango-vienna.com accessibility score

44

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

Best Practices

tango-vienna.com 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

High

Browser errors were logged to the console

SEO Factors

tango-vienna.com SEO score

62

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

Language and Encoding

  • Language Detected

    N/A

  • 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 Tango-vienna.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Tango-vienna.com 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

tango-vienna.com

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