Tools & Wizards About Us
birkajazz.se screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    87% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

birkajazz.se

Columbia Records - jazz album covers

Page Load Speed

6.4 sec in total

First Response

480 ms

Resources Loaded

3.5 sec

Page Rendered

2.4 sec

birkajazz.se screenshot

About Website

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

Columbia Records and the pioneers of jazz album cover design. Notes and pictures from Birka Jazz Archive.

Visit birkajazz.se

Key Findings

We analyzed Birkajazz.se page load time and found that the first response time was 480 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

birkajazz.se performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

93/100

10%

LCP (Largest Contentful Paint)

Value1.6 s

99/100

25%

SI (Speed Index)

Value3.6 s

86/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.856

4/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

birkajazz.se

480 ms

birkajazz.se

406 ms

birka.css

107 ms

birka1.js

214 ms

birkajazz3.gif

115 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that all of those requests were addressed to Birkajazz.se and no external sources were called. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Birkajazz.se.

Page Optimization Overview & Recommendations

Page size can be reduced by 279.4 kB (3%)

Content Size

9.6 MB

After Optimization

9.3 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Birkajazz.se main page is 9.6 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 9.5 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 31.7 kB

  • Original 42.4 kB
  • After minification 40.5 kB
  • After compression 10.8 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 31.7 kB or 75% of the original size.

Image Optimization

-3%

Potential reduce by 247.6 kB

  • Original 9.5 MB
  • After minification 9.3 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. Birka Jazz images are well optimized though.

CSS Optimization

-21%

Potential reduce by 131 B

  • Original 613 B
  • After minification 613 B
  • After compression 482 B

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. Birkajazz.se needs all CSS files to be minified and compressed as it can save up to 131 B or 21% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

79

After Optimization

79

  • Images
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Birka Jazz. According to our analytics all requests are already optimized.

Network Requests Diagram

birkajazz.se

birkajazz.se

480 ms

birkajazz.se

birkajazz.se

406 ms

birka.css

birka.css

107 ms

birka1.js

birka1.js

214 ms

birkajazz3.gif

birkajazz3.gif

115 ms

egoKeps2.jpg

egoKeps2.jpg

390 ms

birkagatan.jpg

birkagatan.jpg

407 ms

bokSkivaffarer.jpg

bokSkivaffarer.jpg

478 ms

ArrowGreen.gif

ArrowGreen.gif

293 ms

columbiaGammal.jpg

columbiaGammal.jpg

386 ms

ColumbiaFirstAlbum3.jpg

ColumbiaFirstAlbum3.jpg

480 ms

sinatraFirstLPb.jpg

sinatraFirstLPb.jpg

491 ms

columbia.jpg

columbia.jpg

490 ms

alexSteinweiss150px.jpg

alexSteinweiss150px.jpg

588 ms

jimFlora150pix.jpg

jimFlora150pix.jpg

509 ms

columbiaEyes2.jpg

columbiaEyes2.jpg

582 ms

columbia2eyes2.jpg

columbia2eyes2.jpg

583 ms

steinweissKirby.jpg

steinweissKirby.jpg

874 ms

holidayColumbia78.jpg

holidayColumbia78.jpg

1062 ms

boogieWoogie78.jpg

boogieWoogie78.jpg

802 ms

armstrong78flora.jpg

armstrong78flora.jpg

971 ms

BixTram78.jpg

BixTram78.jpg

972 ms

oryColumbia78.jpg

oryColumbia78.jpg

972 ms

krupaColumbia78.jpg

krupaColumbia78.jpg

1005 ms

sinatraVoice78.jpg

sinatraVoice78.jpg

1259 ms

goodmanCarnegie.jpg

goodmanCarnegie.jpg

1357 ms

wileyManhattan10.jpg

wileyManhattan10.jpg

1171 ms

armstrongStory.jpg

armstrongStory.jpg

1171 ms

baileyMildredColumbia10.jpg

baileyMildredColumbia10.jpg

1203 ms

goodmanCombos.jpg

goodmanCombos.jpg

1261 ms

smithStory.jpg

smithStory.jpg

1368 ms

johnsonLastTestament.jpg

johnsonLastTestament.jpg

1371 ms

clooneyColumbia10.jpg

clooneyColumbia10.jpg

1401 ms

bakerStrings.jpg

bakerStrings.jpg

1457 ms

brubeckGoesCollege.jpg

brubeckGoesCollege.jpg

1461 ms

brubeckTime.jpg

brubeckTime.jpg

1647 ms

shahnChicago.jpg

shahnChicago.jpg

1566 ms

vaughanColumbia660.jpg

vaughanColumbia660.jpg

1568 ms

brubeckRedHot.jpg

brubeckRedHot.jpg

1504 ms

claytonWoodside.jpg

claytonWoodside.jpg

1653 ms

armstrongFatsWaller.jpg

armstrongFatsWaller.jpg

1454 ms

condonBixieland.jpg

condonBixieland.jpg

1412 ms

johnsonColumbia742.jpg

johnsonColumbia742.jpg

1379 ms

sinatraVoice.jpg

sinatraVoice.jpg

1379 ms

wilsonFabulous.jpg

wilsonFabulous.jpg

1269 ms

basieColumbia.jpg

basieColumbia.jpg

1276 ms

goodmanVintage.jpg

goodmanVintage.jpg

1281 ms

condonTreasury.jpg

condonTreasury.jpg

1292 ms

jayKaiColumbia.jpg

jayKaiColumbia.jpg

1412 ms

blakeyColumbia.jpg

blakeyColumbia.jpg

1348 ms

ellingtonNewport.jpg

ellingtonNewport.jpg

1283 ms

johnsonJazz.jpg

johnsonJazz.jpg

1286 ms

davisRoundMidnight.jpg

davisRoundMidnight.jpg

1285 ms

ellingtonDrumWoman.jpg

ellingtonDrumWoman.jpg

1077 ms

rushingOdyssey.jpg

rushingOdyssey.jpg

1089 ms

byrdGryceColumbia.jpg

byrdGryceColumbia.jpg

998 ms

blakeyDrumSuite.jpg

blakeyDrumSuite.jpg

1002 ms

ellingtonThunder.jpg

ellingtonThunder.jpg

1003 ms

blakeyHardbopColumbia.jpg

blakeyHardbopColumbia.jpg

984 ms

davisMilesAhead.jpg

davisMilesAhead.jpg

945 ms

ellingtonIndigos.jpg

ellingtonIndigos.jpg

897 ms

rushingBrass.jpg

rushingBrass.jpg

902 ms

johnsonInPerson.jpg

johnsonInPerson.jpg

873 ms

davisMilestones.jpg

davisMilestones.jpg

820 ms

legrandJazzColumbia.jpg

legrandJazzColumbia.jpg

833 ms

davisJazzTrack.jpg

davisJazzTrack.jpg

754 ms

mulliganColumbia.jpg

mulliganColumbia.jpg

804 ms

davisKind.jpg

davisKind.jpg

807 ms

ellingtonAnatomy.jpg

ellingtonAnatomy.jpg

780 ms

mingusAhUm.jpg

mingusAhUm.jpg

725 ms

wilderPrettySound.jpg

wilderPrettySound.jpg

736 ms

brubeckTimeOut.jpg

brubeckTimeOut.jpg

710 ms

mingusDynasty.jpg

mingusDynasty.jpg

805 ms

davisPrince.jpg

davisPrince.jpg

717 ms

davisBlackhawk.jpg

davisBlackhawk.jpg

715 ms

giuffreFreeFall.jpg

giuffreFreeFall.jpg

639 ms

monkEugeneSmith.jpg

monkEugeneSmith.jpg

649 ms

monkUnderground.jpg

monkUnderground.jpg

649 ms

monkBlues.jpg

monkBlues.jpg

687 ms

davisMilesBitches.jpg

davisMilesBitches.jpg

640 ms

santanaAbraxas.jpg

santanaAbraxas.jpg

634 ms

DavisMilesLiveEvil.jpg

DavisMilesLiveEvil.jpg

646 ms

Accessibility Review

birkajazz.se accessibility score

68

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

Best Practices

birkajazz.se best practices score

58

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

birkajazz.se SEO score

67

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

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Birkajazz.se 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 Birkajazz.se main page’s claimed encoding is . 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

birkajazz.se

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