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libro.at screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

libro.at

LIBRO Onlineshop » Alles für Schule & Büro | LIBRO

Page Load Speed

6.4 sec in total

First Response

305 ms

Resources Loaded

5.6 sec

Page Rendered

503 ms

libro.at screenshot

About Website

Welcome to libro.at homepage info - get ready to check LIBRO best content for Austria right away, or after learning these important things about libro.at

Schnell & einfach online kaufen ➜ Büro- & Schulartikel ✓ Drucker ✓ Bücher ✓ Games ✓ alle Angebote & Produkte entdecken!

Visit libro.at

Key Findings

We analyzed Libro.at page load time and found that the first response time was 305 ms and then it took 6.1 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

libro.at performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value10.6 s

0/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value4,330 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.123

83/100

15%

TTI (Time to Interactive)

Value26.2 s

0/100

10%

Network Requests Diagram

libro.at

305 ms

www.libro.at

763 ms

calendar.css

318 ms

styles-m.css

660 ms

animate.min.css

322 ms

Our browser made a total of 209 requests to load all elements on the main page. We found that 89% of them (186 requests) were addressed to the original Libro.at, 5% (10 requests) were made to Cdn.mth.group and 2% (4 requests) were made to Cdn.sitesearch360.com. The less responsive or slowest element that took the longest time to load (1000 ms) belongs to the original domain Libro.at.

Page Optimization Overview & Recommendations

Page size can be reduced by 899.4 kB (35%)

Content Size

2.5 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Libro.at main page is 2.5 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 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 654.4 kB

  • Original 717.4 kB
  • After minification 537.7 kB
  • After compression 63.0 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 179.7 kB, which is 25% 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 654.4 kB or 91% of the original size.

Image Optimization

-16%

Potential reduce by 226.0 kB

  • Original 1.4 MB
  • After minification 1.2 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. Obviously, LIBRO needs image optimization as it can save up to 226.0 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 159 B

  • Original 264.9 kB
  • After minification 264.9 kB
  • After compression 264.7 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

-11%

Potential reduce by 18.9 kB

  • Original 176.9 kB
  • After minification 176.9 kB
  • After compression 158.1 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. Libro.at needs all CSS files to be minified and compressed as it can save up to 18.9 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 133 (68%)

Requests Now

195

After Optimization

62

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 195 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LIBRO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 119 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

libro.at

libro.at

305 ms

www.libro.at

www.libro.at

763 ms

calendar.css

calendar.css

318 ms

styles-m.css

styles-m.css

660 ms

animate.min.css

animate.min.css

322 ms

chosen.min.css

chosen.min.css

321 ms

minicart.css

minicart.css

325 ms

modal.css

modal.css

326 ms

styles.css

styles.css

423 ms

styles-l.css

styles-l.css

442 ms

require.js

require.js

535 ms

disabled.js

disabled.js

431 ms

mixins.js

mixins.js

436 ms

requirejs-config.js

requirejs-config.js

532 ms

cart-share.js

cart-share.js

541 ms

1504.js

1504.js

45 ms

v2

v2

37 ms

XE9A9F0C34380D460F0410A166C9BE940.js

XE9A9F0C34380D460F0410A166C9BE940.js

16 ms

otSDKStub.js

otSDKStub.js

31 ms

id1yas.js

id1yas.js

709 ms

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216 ms

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246 ms

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246 ms

fast_delivery.svg

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115 ms

wallet.svg

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108 ms

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116 ms

logo.svg

logo.svg

118 ms

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%7B%7Bimage%7D%7D

746 ms

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109 ms

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212 ms

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211 ms

Libro-Pure_Teaser-Header-1_desktop_1240-480_2024_KW18_Gaming_PS5_Bundle_SpiderMan2.jpg

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357 ms

Libro-Pure_Teaser-Header-1_mobil_355-165_2024_KW18_Gaming_PS5_Bundle_SpiderMan2.jpg

Libro-Pure_Teaser-Header-1_mobil_355-165_2024_KW18_Gaming_PS5_Bundle_SpiderMan2.jpg

357 ms

Libro-Pure_Teaser-Header-1_desktop_1240-480_2024_KW18_Kinderparty_Z-Design-Tattoos.jpg

Libro-Pure_Teaser-Header-1_desktop_1240-480_2024_KW18_Kinderparty_Z-Design-Tattoos.jpg

423 ms

Libro-Pure_Teaser-Header-1_mobil_355-165_2024_KW18_Kinderparty_Z-Design-Tattoos.jpg

Libro-Pure_Teaser-Header-1_mobil_355-165_2024_KW18_Kinderparty_Z-Design-Tattoos.jpg

322 ms

Libro-Pure_Teaser-Header-1_desktop_1240-480_2024_KW18_Geschenke_Schl_sselanh_nger_Holz.jpg

Libro-Pure_Teaser-Header-1_desktop_1240-480_2024_KW18_Geschenke_Schl_sselanh_nger_Holz.jpg

355 ms

Libro-Pure_Teaser-Header-1_mobil_355-165_2024_KW18_Geschenke_Schl_sselanh_nger_Holz.jpg

Libro-Pure_Teaser-Header-1_mobil_355-165_2024_KW18_Geschenke_Schl_sselanh_nger_Holz.jpg

431 ms

Libro-Pure_Actiontiles-2_mobil_606-385_Spielen_Sommer_5.jpg

Libro-Pure_Actiontiles-2_mobil_606-385_Spielen_Sommer_5.jpg

432 ms

Libro-Pure_Actiontiles-2_desktop_606-285_Spielen_Sommer.jpg

Libro-Pure_Actiontiles-2_desktop_606-285_Spielen_Sommer.jpg

435 ms

Libro-Pure_Actiontiles-2_mobil_606-385_Buch_Euro-2024_9.jpg

Libro-Pure_Actiontiles-2_mobil_606-385_Buch_Euro-2024_9.jpg

541 ms

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Libro-Pure_Actiontiles-2_desktop_606-285_Buch_Euro-2024_9.jpg

528 ms

Libro-Pure_Actiontiles-2_mobil_606-385_Buch_Euro-2024_7.jpg

Libro-Pure_Actiontiles-2_mobil_606-385_Buch_Euro-2024_7.jpg

536 ms

Libro-Pure_Actiontiles-2_desktop_606-285_Buch_Euro-2024_7.jpg

Libro-Pure_Actiontiles-2_desktop_606-285_Buch_Euro-2024_7.jpg

537 ms

Libro-Pure_beschBild_mobil_392-400_2024_KW18_Marken_Nerf_mitGelblaster_1.jpg

Libro-Pure_beschBild_mobil_392-400_2024_KW18_Marken_Nerf_mitGelblaster_1.jpg

543 ms

Libro-Pure_beschBild_desktop_605-444_2024_KW18_Marken_Nerf_mitGelblaster_2.jpg

Libro-Pure_beschBild_desktop_605-444_2024_KW18_Marken_Nerf_mitGelblaster_2.jpg

635 ms

Libro-Pure_Actiontiles-1_mobil_606-600_2024_KW18_Marken_Pokemon_2.jpg

Libro-Pure_Actiontiles-1_mobil_606-600_2024_KW18_Marken_Pokemon_2.jpg

644 ms

Libro-Pure_Actiontiles-1_desktop_606-600_2024_KW18_Marken_Pokemon_1.jpg

Libro-Pure_Actiontiles-1_desktop_606-600_2024_KW18_Marken_Pokemon_1.jpg

642 ms

Libro-Pure_Actiontiles-2_mobil_606-385_2024_KW18_Taschen-Rucks_cke-Walker_1.jpg

Libro-Pure_Actiontiles-2_mobil_606-385_2024_KW18_Taschen-Rucks_cke-Walker_1.jpg

648 ms

Libro-Pure_Actiontiles-2_desktop_606-285_2024_KW18_Taschen-Rucks_cke_Walker_1.jpg

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651 ms

Libro-Pure_Actiontiles-2_mobil_606-385_2024_KW16_Musik-Film_Abverkauf_3.jpg

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740 ms

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748 ms

Buch.png

Buch.png

750 ms

Schule_B_ro.png

Schule_B_ro.png

756 ms

Gaming.png

Gaming.png

759 ms

Geschenke.png

Geschenke.png

846 ms

Party.png

Party.png

851 ms

Spielen.png

Spielen.png

854 ms

Tinte-Toner-Suche_410x320_2024-04.jpg

Tinte-Toner-Suche_410x320_2024-04.jpg

853 ms

jquery.js

jquery.js

1000 ms

index.js

index.js

51 ms

index.js

index.js

45 ms

common.js

common.js

763 ms

dataPost.js

dataPost.js

845 ms

bootstrap.js

bootstrap.js

849 ms

app.js

app.js

843 ms

form-key-provider.js

form-key-provider.js

837 ms

db7774b2-d796-470b-83c6-7f8ef3c1246d.json

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61 ms

sitesearch360-v14.frozen.c43e04da09132b3f00d2989d4df997fb.js

sitesearch360-v14.frozen.c43e04da09132b3f00d2989d4df997fb.js

32 ms

mage-translation-dictionary.js

mage-translation-dictionary.js

768 ms

theme.js

theme.js

850 ms

ss360-translations-v14.chunk.bd975354446d496fdfa4.js

ss360-translations-v14.chunk.bd975354446d496fdfa4.js

21 ms

otBannerSdk.js

otBannerSdk.js

53 ms

ss360-unibox-v14.chunk.8136b0bc9de59b864d79.js

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27 ms

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64 ms

filter.js

filter.js

714 ms

filter-handle.js

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712 ms

public-events.js

public-events.js

715 ms

add-to-cart-form.js

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729 ms

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693 ms

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746 ms

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672 ms

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665 ms

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686 ms

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731 ms

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741 ms

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648 ms

newsletter-image.png

newsletter-image.png

752 ms

icon-instagram.svg

icon-instagram.svg

661 ms

icon-pinterest.svg

icon-pinterest.svg

685 ms

icon-facebook.svg

icon-facebook.svg

725 ms

icon-youtube.svg

icon-youtube.svg

644 ms

icon-tiktok.svg

icon-tiktok.svg

641 ms

mastercard.png

mastercard.png

664 ms

Visa.png

Visa.png

690 ms

paypal.png

paypal.png

723 ms

Klarna_Payment.png

Klarna_Payment.png

728 ms

kauf-auf-rechnung.png

kauf-auf-rechnung.png

641 ms

klarna-sofort-kauf.svg

klarna-sofort-kauf.svg

652 ms

ssl_logo.png

ssl_logo.png

668 ms

geizhals_logo_official.png

geizhals_logo_official.png

695 ms

domReady.js

domReady.js

717 ms

jquery-mixin.js

jquery-mixin.js

640 ms

template.js

template.js

635 ms

confirm.js

confirm.js

651 ms

widget.js

widget.js

673 ms

main.js

main.js

682 ms

bootstrap.js

bootstrap.js

674 ms

types.js

types.js

640 ms

layout.js

layout.js

636 ms

text.js

text.js

655 ms

smart-keyboard-handler.js

smart-keyboard-handler.js

675 ms

mage.js

mage.js

682 ms

icon-phone_edited.svg

icon-phone_edited.svg

670 ms

icon-reachability_edited.svg

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628 ms

icon-mail_edited.svg

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631 ms

icon-contactform_edited.svg

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632 ms

wrapper.js

wrapper.js

259 ms

underscore.js

underscore.js

291 ms

translate.js

translate.js

290 ms

modal.js

modal.js

299 ms

version.js

version.js

277 ms

scripts.js

scripts.js

278 ms

knockout.js

knockout.js

391 ms

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302 ms

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engine.js

311 ms

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main.js

318 ms

bootstrap.js

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321 ms

observable_array.js

observable_array.js

350 ms

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407 ms

registry.js

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417 ms

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416 ms

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406 ms

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247 ms

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311 ms

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core.js

313 ms

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320 ms

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255 ms

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renderer.js

290 ms

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304 ms

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knockout-fast-foreach.js

311 ms

arrays.js

arrays.js

311 ms

compare.js

compare.js

316 ms

misc.js

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356 ms

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392 ms

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415 ms

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421 ms

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463 ms

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498 ms

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518 ms

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517 ms

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518 ms

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525 ms

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570 ms

datepicker.js

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605 ms

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621 ms

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624 ms

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621 ms

staticChecked.js

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628 ms

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656 ms

bind-html.js

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649 ms

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tooltip.js

651 ms

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636 ms

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events.js

638 ms

local.js

local.js

634 ms

logger.js

logger.js

657 ms

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657 ms

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641 ms

formatter.js

formatter.js

636 ms

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message-pool.js

641 ms

levels-pool.js

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634 ms

logger-utils.js

logger-utils.js

656 ms

data.js

data.js

655 ms

disable-selection.js

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640 ms

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635 ms

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form.js

641 ms

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ie.js

639 ms

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656 ms

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labels.js

654 ms

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637 ms

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plugin.js

635 ms

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640 ms

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641 ms

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scroll-parent.js

655 ms

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654 ms

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class.js

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loader.js

640 ms

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645 ms

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spectrum.js

502 ms

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tinycolor.js

531 ms

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tooltip.html

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entry.js

430 ms

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moment.js

437 ms

dom-observer.js

dom-observer.js

112 ms

bindings.js

bindings.js

165 ms

print.css

print.css

111 ms

Accessibility Review

libro.at accessibility score

85

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

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

libro.at best practices score

75

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

libro.at SEO score

73

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

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

libro.at

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