Tools & Wizards About Us
stuvia.be screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    31% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    82% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

stuvia.be

De beste samenvattingen kopen en verkopen - Stuvia BE

Page Load Speed

3.8 sec in total

First Response

216 ms

Resources Loaded

2.9 sec

Page Rendered

663 ms

stuvia.be screenshot

About Website

Visit stuvia.be now to see the best up-to-date Stuvia content for Belgium and also check out these interesting facts you probably never knew about stuvia.be

Op Stuvia vind je de beste samenvattingen, notities en ander studiemateriaal. Voor alle tentamens, toetsen en cursussen. Ontdek het aanbod op Stuvia.

Visit stuvia.be

Key Findings

We analyzed Stuvia.be page load time and found that the first response time was 216 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

stuvia.be performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value16.2 s

0/100

10%

TBT (Total Blocking Time)

Value21,340 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.039

100/100

15%

TTI (Time to Interactive)

Value29.6 s

0/100

10%

Network Requests Diagram

stuvia.be

216 ms

nl-be

643 ms

0250c23375-indexpage_css.css

26 ms

sdk.js

21 ms

7ce0241cfc-analytics.js

23 ms

Our browser made a total of 116 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Stuvia.be, 72% (84 requests) were made to Stuvia.com and 4% (5 requests) were made to Platform-lookaside.fbsbx.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source S.s-bol.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 623.6 kB (24%)

Content Size

2.6 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stuvia.be main page is 2.6 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 573.3 kB

  • Original 632.7 kB
  • After minification 353.2 kB
  • After compression 59.3 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 279.4 kB, which is 44% 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 573.3 kB or 91% of the original size.

Image Optimization

-3%

Potential reduce by 50.2 kB

  • Original 1.9 MB
  • After minification 1.9 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. Stuvia images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 46 B

  • Original 20.7 kB
  • After minification 20.7 kB
  • After compression 20.7 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

-0%

Potential reduce by 0 B

  • Original 70.4 kB
  • After minification 70.4 kB
  • After compression 70.4 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. Stuvia.be has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 13 (13%)

Requests Now

103

After Optimization

90

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stuvia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

stuvia.be

stuvia.be

216 ms

nl-be

nl-be

643 ms

0250c23375-indexpage_css.css

0250c23375-indexpage_css.css

26 ms

sdk.js

sdk.js

21 ms

7ce0241cfc-analytics.js

7ce0241cfc-analytics.js

23 ms

analytics.js

analytics.js

89 ms

logo_stuvia.png

logo_stuvia.png

18 ms

logo-2.png

logo-2.png

82 ms

9200000057032332_header_sized.jpg

9200000057032332_header_sized.jpg

85 ms

9200000001049762_header_sized.jpg

9200000001049762_header_sized.jpg

86 ms

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9200000012124528_header_sized.jpg

84 ms

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81 ms

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83 ms

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1001004006423636_header_sized.jpg

86 ms

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85 ms

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86 ms

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495 ms

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86 ms

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86 ms

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494 ms

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86 ms

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9200000025498300_header_sized.jpg

88 ms

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88 ms

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9200000077406571_header_sized.jpg

86 ms

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88 ms

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1001004002380606_header_sized.jpg

89 ms

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9200000014954203_header_sized.jpg

90 ms

9200000050766642_header_sized.jpg

9200000050766642_header_sized.jpg

88 ms

be.svg

be.svg

75 ms

alegreya-sans-stuvia-300.woff

alegreya-sans-stuvia-300.woff

75 ms

alegreya-sans-stuvia-100.woff

alegreya-sans-stuvia-100.woff

75 ms

alegreya-sans-stuvia-regular.woff

alegreya-sans-stuvia-regular.woff

76 ms

alegreya-sans-stuvia-500.woff

alegreya-sans-stuvia-500.woff

75 ms

9200000046611308_header_sized.jpg

9200000046611308_header_sized.jpg

235 ms

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9200000052122713_header_sized.jpg

235 ms

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9200000080900342_header_sized.jpg

237 ms

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9200000021756637_header_sized.jpg

239 ms

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9200000030255300_header_sized.jpg

236 ms

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9200000074890546_header_sized.jpg

237 ms

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9200000039684255_header_sized.jpg

238 ms

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9200000051705359_header_sized.jpg

239 ms

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1001004006738762_header_sized.jpg

242 ms

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9200000063033920_header_sized.jpg

239 ms

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9200000058527891_header_sized.jpg

240 ms

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9200000020634218_header_sized.jpg

239 ms

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9200000068208138_header_sized.jpg

241 ms

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9200000047816370_header_sized.jpg

242 ms

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9200000058363588_header_sized.jpg

243 ms

9200000024674133_header_sized.jpg

9200000024674133_header_sized.jpg

246 ms

sound-icon.png

sound-icon.png

243 ms

homepage_new_all.jpg

homepage_new_all.jpg

244 ms

homepage-jouw_kennis_is_geld_waard.jpg

homepage-jouw_kennis_is_geld_waard.jpg

243 ms

homepage-snel_en_makkelijk_verkopen.jpg

homepage-snel_en_makkelijk_verkopen.jpg

245 ms

homepage-jouw_account_op_stuvia.jpg

homepage-jouw_account_op_stuvia.jpg

246 ms

9200000096146440.jpg

9200000096146440.jpg

1350 ms

110x155.jpg

110x155.jpg

626 ms

e218dbc45d-app.js

e218dbc45d-app.js

220 ms

879cfda25c-indexpage.js

879cfda25c-indexpage.js

200 ms

slick.min.js

slick.min.js

481 ms

sdk.js

sdk.js

325 ms

fbevents.js

fbevents.js

509 ms

amplitude-8.5.0-min.gz.js

amplitude-8.5.0-min.gz.js

567 ms

insight.min.js

insight.min.js

606 ms

hotjar-15951.js

hotjar-15951.js

662 ms

js

js

263 ms

9200000089048421.jpg

9200000089048421.jpg

1171 ms

9200000052122713.jpg

9200000052122713.jpg

1160 ms

9200000091620358.jpg

9200000091620358.jpg

1158 ms

9200000107730487.jpg

9200000107730487.jpg

1170 ms

9200000074890546.jpg

9200000074890546.jpg

276 ms

9200000065685747.jpg

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275 ms

9200000014406718.jpg

9200000014406718.jpg

276 ms

9200000025074831.jpg

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365 ms

9200000038560636.jpg

9200000038560636.jpg

299 ms

9200000030255300.jpg

9200000030255300.jpg

364 ms

9200000050766642.jpg

9200000050766642.jpg

377 ms

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9200000040263032.jpg

379 ms

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373 ms

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427 ms

550x791.jpg

550x791.jpg

485 ms

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482 ms

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432 ms

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429 ms

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428 ms

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427 ms

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426 ms

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477 ms

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487 ms

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475 ms

sell_notes.png

sell_notes.png

494 ms

default_avatar.png

default_avatar.png

475 ms

user_avatar_180848_5afafc2c767e2.jpg

user_avatar_180848_5afafc2c767e2.jpg

979 ms

user_avatar_343774_5bbb2a9233182.jpg

user_avatar_343774_5bbb2a9233182.jpg

1146 ms

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user_avatar_345699_5a39158b18974.jpg

977 ms

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user_avatar_488139_5cf50c28b5f2e.jpg

977 ms

user_avatar_590535_5dd6b89a9f3db.png

user_avatar_590535_5dd6b89a9f3db.png

978 ms

stuvia_logo_header_small.png

stuvia_logo_header_small.png

515 ms

fa-stuvia-regular-400.woff

fa-stuvia-regular-400.woff

535 ms

fa-stuvia-light-300.woff

fa-stuvia-light-300.woff

621 ms

fa-stuvia-solid-900.woff

fa-stuvia-solid-900.woff

857 ms

fa-stuvia-brands-400.woff

fa-stuvia-brands-400.woff

974 ms

308 ms

ajax-get-institution-dropdown-content

ajax-get-institution-dropdown-content

945 ms

collect

collect

136 ms

692 ms

819486028117639

819486028117639

79 ms

612 ms

84628273_176159830277856_972693363922829312_n.jpg

84628273_176159830277856_972693363922829312_n.jpg

148 ms

607 ms

485 ms

collect

collect

212 ms

504 ms

modules.61e17720cf639c3e96a7.js

modules.61e17720cf639c3e96a7.js

149 ms

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

box-69edcc3187336f9b0a3fbb4c73be9fe6.html

445 ms

ga-audiences

ga-audiences

515 ms

18 ms

Accessibility Review

stuvia.be accessibility score

77

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

stuvia.be best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

stuvia.be SEO score

85

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 uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

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

stuvia.be

Open Graph data is detected on the main page of Stuvia. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: