Tools & Wizards About Us
hagstromerlibrary.ki.se screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

hagstromerlibrary.ki.se

The Historical Library of Karolinska Institutet and the Swedish Society of Medicine

Page Load Speed

3 sec in total

First Response

330 ms

Resources Loaded

2.4 sec

Page Rendered

267 ms

hagstromerlibrary.ki.se screenshot

About Website

Welcome to hagstromerlibrary.ki.se homepage info - get ready to check Hagstromer Library Ki best content for Sweden right away, or after learning these important things about hagstromerlibrary.ki.se

Here you can read about and look at pictures of old and rare books within a wide range of biomedical subjects.

Visit hagstromerlibrary.ki.se

Key Findings

We analyzed Hagstromerlibrary.ki.se page load time and found that the first response time was 330 ms and then it took 2.7 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

hagstromerlibrary.ki.se performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value15.1 s

1/100

10%

TBT (Total Blocking Time)

Value410 ms

66/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value5.4 s

72/100

10%

Network Requests Diagram

hagstromerlibrary.ki.se

330 ms

hagstromerlibrary.ki.se

474 ms

application-5c695e272230fd9cb87db70c0130a012.css

216 ms

css

42 ms

application-a67ffbc59e24094b3c3f3587297b1fb5.js

539 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 88% of them (35 requests) were addressed to the original Hagstromerlibrary.ki.se, 8% (3 requests) were made to Fonts.gstatic.com and 3% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (882 ms) belongs to the original domain Hagstromerlibrary.ki.se.

Page Optimization Overview & Recommendations

Page size can be reduced by 22.5 kB (2%)

Content Size

1.0 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Hagstromerlibrary.ki.se main page is 1.0 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. 40% of websites need less resources to load. Images take 883.0 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 7.5 kB

  • Original 11.0 kB
  • After minification 9.8 kB
  • After compression 3.5 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 1.2 kB, which is 11% 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 7.5 kB or 68% of the original size.

Image Optimization

-2%

Potential reduce by 14.4 kB

  • Original 883.0 kB
  • After minification 868.6 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. Hagstromer Library Ki images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 111.7 kB
  • After minification 111.7 kB
  • After compression 111.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-3%

Potential reduce by 664 B

  • Original 25.3 kB
  • After minification 25.3 kB
  • After compression 24.6 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. Hagstromerlibrary.ki.se has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 5 (15%)

Requests Now

33

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hagstromer Library Ki. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

hagstromerlibrary.ki.se

hagstromerlibrary.ki.se

330 ms

hagstromerlibrary.ki.se

hagstromerlibrary.ki.se

474 ms

application-5c695e272230fd9cb87db70c0130a012.css

application-5c695e272230fd9cb87db70c0130a012.css

216 ms

css

css

42 ms

application-a67ffbc59e24094b3c3f3587297b1fb5.js

application-a67ffbc59e24094b3c3f3587297b1fb5.js

539 ms

js

js

75 ms

hs-logo.png

hs-logo.png

115 ms

topimage_topimage_start-1.jpg

topimage_topimage_start-1.jpg

438 ms

topimage_topimage_start-2.jpg

topimage_topimage_start-2.jpg

246 ms

topimage_topimage_start-3.jpg

topimage_topimage_start-3.jpg

657 ms

icon-search.png

icon-search.png

334 ms

icon-chevron-down.png

icon-chevron-down.png

334 ms

orange-mobile-a98d5f96bea315f1433da5356b3f666f.jpg

orange-mobile-a98d5f96bea315f1433da5356b3f666f.jpg

332 ms

man-mobile-7d926f2f172db461c849d676e4691183.jpg

man-mobile-7d926f2f172db461c849d676e4691183.jpg

354 ms

flower-mobile-c6a1aa1e9efac0042f384e35dff3e33b.jpg

flower-mobile-c6a1aa1e9efac0042f384e35dff3e33b.jpg

439 ms

standing-man-mobile-9ff5de7d0014561a8e8f35db0bf9408b.jpg

standing-man-mobile-9ff5de7d0014561a8e8f35db0bf9408b.jpg

445 ms

icon-arrow-right.png

icon-arrow-right.png

442 ms

orange-5d82564cf313770bcec3d93673bf7550.jpg

orange-5d82564cf313770bcec3d93673bf7550.jpg

461 ms

couple-ab208190a57bcb2b0b64161d0559d8cd.jpg

couple-ab208190a57bcb2b0b64161d0559d8cd.jpg

546 ms

art-promo-mobile-a09af1693e2d6ca67bf16eca773322e8.jpg

art-promo-mobile-a09af1693e2d6ca67bf16eca773322e8.jpg

547 ms

tatooed-man-mobile-55abfd7f3026b51261e067f4860ea758.jpg

tatooed-man-mobile-55abfd7f3026b51261e067f4860ea758.jpg

553 ms

bearded-man-mobile-addbe668949902f4d943c276c65432d4.jpg

bearded-man-mobile-addbe668949902f4d943c276c65432d4.jpg

554 ms

jellyfish-mobile-918dca473103ade9fdb247c437d32d11.jpg

jellyfish-mobile-918dca473103ade9fdb247c437d32d11.jpg

569 ms

jellyfish-ff325bfb4e93dcc30dcec23a3a779784.jpg

jellyfish-ff325bfb4e93dcc30dcec23a3a779784.jpg

653 ms

bearded-man-2a98803106bdca2d9262fa78de71d70c.jpg

bearded-man-2a98803106bdca2d9262fa78de71d70c.jpg

655 ms

art-promo-1f7b5a37022c51692b2e9668a3859357.jpg

art-promo-1f7b5a37022c51692b2e9668a3859357.jpg

882 ms

contact-48f19940dc0af0ae989b0ae0e283dfb2.jpg

contact-48f19940dc0af0ae989b0ae0e283dfb2.jpg

662 ms

friends-dc584709b57887ad9bb8c4bb57d90bd3.jpg

friends-dc584709b57887ad9bb8c4bb57d90bd3.jpg

676 ms

about-f18985df223c853bd492f6e8be31a9f2.jpg

about-f18985df223c853bd492f6e8be31a9f2.jpg

763 ms

news-9848242cf929756cde1d1c4c4dce129e.jpg

news-9848242cf929756cde1d1c4c4dce129e.jpg

764 ms

hs-logo-footer.png

hs-logo-footer.png

763 ms

ki-logo-72004e4596fd37c9f093d7cdf17d8513.png

ki-logo-72004e4596fd37c9f093d7cdf17d8513.png

771 ms

sls-logo-0d8c481516e6879f75acd7b784f10d2c.png

sls-logo-0d8c481516e6879f75acd7b784f10d2c.png

783 ms

prev-btn.png

prev-btn.png

870 ms

next-btn.png

next-btn.png

868 ms

BauWeb-Regular.woff

BauWeb-Regular.woff

854 ms

BauWeb-Medium.woff

BauWeb-Medium.woff

864 ms

4UaSrEBBsBhlBjvfkSLk3abBFkvpkARTPlbgv5qhmSA.ttf

4UaSrEBBsBhlBjvfkSLk3abBFkvpkARTPlbgv5qhmSA.ttf

168 ms

4UacrEBBsBhlBjvfkQjt71kZfyBzPgNG9hU4-6qm.ttf

4UacrEBBsBhlBjvfkQjt71kZfyBzPgNG9hU4-6qm.ttf

176 ms

4UacrEBBsBhlBjvfkQjt71kZfyBzPgNGERI4-6qm.ttf

4UacrEBBsBhlBjvfkQjt71kZfyBzPgNGERI4-6qm.ttf

177 ms

Accessibility Review

hagstromerlibrary.ki.se accessibility score

66

Accessibility Issues

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

Buttons do not have an accessible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

hagstromerlibrary.ki.se best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

hagstromerlibrary.ki.se SEO score

99

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hagstromerlibrary.ki.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 Hagstromerlibrary.ki.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

hagstromerlibrary.ki.se

Open Graph description is not detected on the main page of Hagstromer Library Ki. 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: