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boss-symposium.org screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

boss-symposium.org

BOSS XVIII Symposium

Page Load Speed

5.8 sec in total

First Response

200 ms

Resources Loaded

4.8 sec

Page Rendered

741 ms

boss-symposium.org screenshot

About Website

Welcome to boss-symposium.org homepage info - get ready to check BOSS Symposium best content right away, or after learning these important things about boss-symposium.org

The BOSS XVIII will take place in Liège, Belgium on June 30-July 5, 2024.

Visit boss-symposium.org

Key Findings

We analyzed Boss-symposium.org page load time and found that the first response time was 200 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

boss-symposium.org performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.271

45/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

boss-symposium.org

200 ms

www.boss-symposium.org

708 ms

bootstrap.css

184 ms

layer1-v2common-btsp.php

366 ms

layer1-v2products-btsp.php

277 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 80% of them (56 requests) were addressed to the original Boss-symposium.org, 4% (3 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Boss-symposium.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 262.4 kB (4%)

Content Size

6.5 MB

After Optimization

6.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Boss-symposium.org main page is 6.5 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. 50% of websites need less resources to load. Images take 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 22.1 kB

  • Original 28.6 kB
  • After minification 27.5 kB
  • After compression 6.5 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. 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 22.1 kB or 77% of the original size.

Image Optimization

-3%

Potential reduce by 201.2 kB

  • Original 6.3 MB
  • After minification 6.1 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. BOSS Symposium images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 35.1 kB

  • Original 158.1 kB
  • After minification 158.0 kB
  • After compression 123.0 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 35.1 kB or 22% of the original size.

CSS Optimization

-10%

Potential reduce by 4.0 kB

  • Original 38.5 kB
  • After minification 38.5 kB
  • After compression 34.5 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. Boss-symposium.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 43 (67%)

Requests Now

64

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BOSS Symposium. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

boss-symposium.org

boss-symposium.org

200 ms

www.boss-symposium.org

www.boss-symposium.org

708 ms

bootstrap.css

bootstrap.css

184 ms

layer1-v2common-btsp.php

layer1-v2common-btsp.php

366 ms

layer1-v2products-btsp.php

layer1-v2products-btsp.php

277 ms

layer1-v2specific.php

layer1-v2specific.php

287 ms

ant_filter_effects.php

ant_filter_effects.php

300 ms

colorbox-btsp.php

colorbox-btsp.php

377 ms

swipebox.css

swipebox.css

376 ms

default.css

default.css

387 ms

bar.css

bar.css

454 ms

light.css

light.css

465 ms

dark.css

dark.css

462 ms

nivo-slider-btsp.css

nivo-slider-btsp.css

474 ms

ant_ddmen_styles.php

ant_ddmen_styles.php

555 ms

layer1-v2responsive.php

layer1-v2responsive.php

562 ms

font-awesome.min.css

font-awesome.min.css

556 ms

sweetalert.css

sweetalert.css

562 ms

icon

icon

49 ms

css

css

62 ms

hc-offcanvas-nav.php

hc-offcanvas-nav.php

655 ms

antalys_base_functions.js

antalys_base_functions.js

644 ms

swfobject.js

swfobject.js

647 ms

jquery.min.js

jquery.min.js

39 ms

jquery.colorbox.js

jquery.colorbox.js

649 ms

antalys_jv_operations.php

antalys_jv_operations.php

761 ms

md5.js

md5.js

735 ms

antalys.js

antalys.js

737 ms

antalys-check.js

antalys-check.js

741 ms

antalys2.js

antalys2.js

821 ms

antalys_jv_misc.php

antalys_jv_misc.php

848 ms

jquery.nivo.slider.pack.js

jquery.nivo.slider.pack.js

829 ms

ant_ddmen_script.js

ant_ddmen_script.js

850 ms

sliding_langues.js

sliding_langues.js

907 ms

calendar.js

calendar.js

918 ms

calendar-english.js

calendar-english.js

935 ms

calendar-setup.js

calendar-setup.js

938 ms

ie-emulation-modes-warning.js

ie-emulation-modes-warning.js

995 ms

bootstrap.bundle.js

bootstrap.bundle.js

1100 ms

jquery.swipebox.js

jquery.swipebox.js

1022 ms

jquery.easing.min.js

jquery.easing.min.js

63 ms

addthis_widget.js

addthis_widget.js

68 ms

js

js

187 ms

sweetalert.min.js

sweetalert.min.js

1025 ms

jquery.easy-ticker.min.js

jquery.easy-ticker.min.js

893 ms

hc-offcanvas-nav.js

hc-offcanvas-nav.js

840 ms

1681739938BOSSXVIII-Banners-1600x600px-HD-a.jpg

1681739938BOSSXVIII-Banners-1600x600px-HD-a.jpg

2789 ms

1582801516LinkedIn_logo_initials.png

1582801516LinkedIn_logo_initials.png

113 ms

1692283564logo-black.png

1692283564logo-black.png

353 ms

Uliege-New%20for%20web.jpg

Uliege-New%20for%20web.jpg

112 ms

copy-1707399393-Logo%20ULi%C3%A8ge_Web.jpg

copy-1707399393-Logo%20ULi%C3%A8ge_Web.jpg

164 ms

copy-1683644972-Logo%20EDT-CHIM%20web.jpg

copy-1683644972-Logo%20EDT-CHIM%20web.jpg

201 ms

copy-1700061351-Elsevier%20for%20web.jpg

copy-1700061351-Elsevier%20for%20web.jpg

200 ms

copy-1700061336-Janssen%20New%20Etroite_web.jpg

copy-1700061336-Janssen%20New%20Etroite_web.jpg

200 ms

copy-1709562472-Galapagos%20for%20web.jpg

copy-1709562472-Galapagos%20for%20web.jpg

251 ms

Minakem2.jpg

Minakem2.jpg

274 ms

Trasis_web.jpg

Trasis_web.jpg

275 ms

fixed-Logo%20Chem.png

fixed-Logo%20Chem.png

279 ms

copy-1709562317-Roche%20for%20web.jpg

copy-1709562317-Roche%20for%20web.jpg

339 ms

RSC_web.jpg

RSC_web.jpg

363 ms

copy-1709562385-UCB%20for%20web.jpg

copy-1709562385-UCB%20for%20web.jpg

365 ms

S6u9w4BMUTPHh7USSwiPHA.ttf

S6u9w4BMUTPHh7USSwiPHA.ttf

119 ms

S6uyw4BMUTPHjx4wWw.ttf

S6uyw4BMUTPHjx4wWw.ttf

161 ms

S6u9w4BMUTPHh6UVSwiPHA.ttf

S6u9w4BMUTPHh6UVSwiPHA.ttf

172 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

521 ms

js

js

60 ms

analytics.js

analytics.js

24 ms

collect

collect

47 ms

collect

collect

93 ms

ga-audiences

ga-audiences

36 ms

Accessibility Review

boss-symposium.org accessibility score

82

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

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

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>).

Best Practices

boss-symposium.org 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

boss-symposium.org SEO score

92

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

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Boss-symposium.org 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 Boss-symposium.org main page’s claimed encoding is iso-8859-1. 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

boss-symposium.org

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