Tools & Wizards About Us
jazzbaragge.ch screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

jazzbaragge.ch

JazzBaragge – Wednesday Jam

Page Load Speed

1.3 sec in total

First Response

393 ms

Resources Loaded

774 ms

Page Rendered

110 ms

jazzbaragge.ch screenshot

About Website

Visit jazzbaragge.ch now to see the best up-to-date Jazz Baragge content and also check out these interesting facts you probably never knew about jazzbaragge.ch

Jeden Mittwoch in Zürich: Gratis Jazz Jam Sessions. Bar, Sofas und Konzerte.

Visit jazzbaragge.ch

Key Findings

We analyzed Jazzbaragge.ch page load time and found that the first response time was 393 ms and then it took 884 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

jazzbaragge.ch performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

17/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value1,300 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value17.5 s

4/100

10%

Network Requests Diagram

jazzbaragge.ch

393 ms

jazzbaraggelogo.gif

191 ms

jazzjam.gif

218 ms

jazzkonzerte.jpg

291 ms

schatten_r.gif

188 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that all of those requests were addressed to Jazzbaragge.ch and no external sources were called. The less responsive or slowest element that took the longest time to load (393 ms) belongs to the original domain Jazzbaragge.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.5 kB (12%)

Content Size

21.9 kB

After Optimization

19.3 kB

  • HTML
  • Images

In fact, the total size of Jazzbaragge.ch main page is 21.9 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 19.3 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 1.7 kB

  • Original 2.6 kB
  • After minification 2.2 kB
  • After compression 813 B

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 327 B, which is 13% 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 1.7 kB or 68% of the original size.

Image Optimization

-4%

Potential reduce by 798 B

  • Original 19.3 kB
  • After minification 18.5 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. Jazz Baragge images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

  • Images

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jazz Baragge. According to our analytics all requests are already optimized.

Network Requests Diagram

jazzbaragge.ch

jazzbaragge.ch

393 ms

jazzbaraggelogo.gif

jazzbaraggelogo.gif

191 ms

jazzjam.gif

jazzjam.gif

218 ms

jazzkonzerte.jpg

jazzkonzerte.jpg

291 ms

schatten_r.gif

schatten_r.gif

188 ms

schatten_or.gif

schatten_or.gif

191 ms

schatten_um.gif

schatten_um.gif

193 ms

schatten_ul.gif

schatten_ul.gif

369 ms

schatten_ur.gif

schatten_ur.gif

377 ms

Accessibility Review

jazzbaragge.ch 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

High

Links do not have a discernible name

Best Practices

jazzbaragge.ch 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

jazzbaragge.ch SEO score

86

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

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

Language and Encoding

  • Language Detected

    DE

  • 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 Jazzbaragge.ch can be misinterpreted by Google and other search engines. Our service has detected that German 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 Jazzbaragge.ch 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

jazzbaragge.ch

Open Graph description is not detected on the main page of Jazz Baragge. 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: