Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

libris.kb.se

LIBRIS

Page Load Speed

3.6 sec in total

First Response

703 ms

Resources Loaded

2.7 sec

Page Rendered

164 ms

libris.kb.se screenshot

About Website

Welcome to libris.kb.se homepage info - get ready to check LIBRIS Kb best content for Sweden right away, or after learning these important things about libris.kb.se

Startsida för LIBRIS - Nationell samkatalog

Visit libris.kb.se

Key Findings

We analyzed Libris.kb.se page load time and found that the first response time was 703 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

libris.kb.se performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

76/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

88/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

libris.kb.se

703 ms

kb2.css

858 ms

jquery.js

680 ms

carousel.js

217 ms

websearch2.util.js

331 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 70% of them (30 requests) were addressed to the original Libris.kb.se, 19% (8 requests) were made to Ettan.libris.kb.se and 7% (3 requests) were made to Analytics.kb.se. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Ettan.libris.kb.se.

Page Optimization Overview & Recommendations

Page size can be reduced by 220.7 kB (17%)

Content Size

1.3 MB

After Optimization

1.1 MB

In fact, the total size of Libris.kb.se main page is 1.3 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. 15% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 16.5 kB

  • Original 20.9 kB
  • After minification 14.0 kB
  • After compression 4.4 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 6.9 kB, which is 33% 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 16.5 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 30.2 kB

  • Original 1.0 MB
  • After minification 981.2 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. LIBRIS Kb images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 61.4 kB

  • Original 112.9 kB
  • After minification 80.1 kB
  • After compression 51.6 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 61.4 kB or 54% of the original size.

CSS Optimization

-87%

Potential reduce by 112.7 kB

  • Original 129.4 kB
  • After minification 82.5 kB
  • After compression 16.7 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. Libris.kb.se needs all CSS files to be minified and compressed as it can save up to 112.7 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (54%)

Requests Now

39

After Optimization

18

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LIBRIS Kb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

libris.kb.se accessibility score

75

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

High

Some elements have a [tabindex] value greater than 0

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

Form elements do not have associated labels

Best Practices

libris.kb.se best practices score

58

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

libris.kb.se SEO score

69

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

Language and Encoding

  • Language Detected

    SV

  • Language Claimed

    SV

  • Encoding

    UTF-8

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

Open Graph description is not detected on the main page of LIBRIS Kb. 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: