Tools & Wizards About Us
metrolab.brussels screenshot

Report Summary

  • 62

    Performance

    Renders faster than
    76% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

metrolab.brussels

Metrolab

Page Load Speed

6 sec in total

First Response

657 ms

Resources Loaded

3.6 sec

Page Rendered

1.7 sec

metrolab.brussels screenshot

About Website

Visit metrolab.brussels now to see the best up-to-date Metrolab content and also check out these interesting facts you probably never knew about metrolab.brussels

Metrolab Brussels (MLB) is a trans-disciplinary and inter-university laboratory for applied and critical urban research

Visit metrolab.brussels

Key Findings

We analyzed Metrolab.brussels page load time and found that the first response time was 657 ms and then it took 5.3 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

metrolab.brussels performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value18.9 s

0/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

metrolab.brussels

657 ms

screen.min.css

481 ms

logo-metrolab.svg

1056 ms

logo-urban-inclusion-reduced.svg

2887 ms

logo-urban-ecology-reduced.svg

1259 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 81% of them (34 requests) were addressed to the original Metrolab.brussels, 7% (3 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Metrolab.brussels.

Page Optimization Overview & Recommendations

Page size can be reduced by 807.4 kB (32%)

Content Size

2.5 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Metrolab.brussels 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. 50% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 36.4 kB

  • Original 43.8 kB
  • After minification 35.7 kB
  • After compression 7.4 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 8.1 kB, which is 19% 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 36.4 kB or 83% of the original size.

Image Optimization

-27%

Potential reduce by 619.5 kB

  • Original 2.3 MB
  • After minification 1.6 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, Metrolab needs image optimization as it can save up to 619.5 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 92.4 kB

  • Original 160.1 kB
  • After minification 160.1 kB
  • After compression 67.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 92.4 kB or 58% of the original size.

CSS Optimization

-81%

Potential reduce by 59.1 kB

  • Original 72.5 kB
  • After minification 72.4 kB
  • After compression 13.4 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. Metrolab.brussels needs all CSS files to be minified and compressed as it can save up to 59.1 kB or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

38

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Metrolab. According to our analytics all requests are already optimized.

Network Requests Diagram

metrolab.brussels

metrolab.brussels

657 ms

screen.min.css

screen.min.css

481 ms

logo-metrolab.svg

logo-metrolab.svg

1056 ms

logo-urban-inclusion-reduced.svg

logo-urban-inclusion-reduced.svg

2887 ms

logo-urban-ecology-reduced.svg

logo-urban-ecology-reduced.svg

1259 ms

logo-urban-production-reduced.svg

logo-urban-production-reduced.svg

2222 ms

scripts.min.js

scripts.min.js

422 ms

css

css

44 ms

css

css

69 ms

icon-search.svg

icon-search.svg

115 ms

bg.svg

bg.svg

300 ms

1623231409-brochure-entete.JPG

1623231409-brochure-entete.JPG

573 ms

1710062760-publication-metrolab-04-couverture.jpg

1710062760-publication-metrolab-04-couverture.jpg

675 ms

1688056079-pages-de-logbook-07-web.png

1688056079-pages-de-logbook-07-web.png

1445 ms

pattern-09.png

pattern-09.png

668 ms

1656585747-miniature-site-infrasoc2.JPG

1656585747-miniature-site-infrasoc2.JPG

977 ms

pattern-06.png

pattern-06.png

781 ms

1647522325-couverture-vignette-site.jpg

1647522325-couverture-vignette-site.jpg

1219 ms

pattern-05.png

pattern-05.png

1155 ms

pattern-04.png

pattern-04.png

1074 ms

pattern-03.png

pattern-03.png

1171 ms

1642433626-illus-brusselsacademy.png

1642433626-illus-brusselsacademy.png

1837 ms

pattern-01.png

pattern-01.png

1362 ms

pattern-00.png

pattern-00.png

1605 ms

pattern-08.png

pattern-08.png

1745 ms

pattern-07.png

pattern-07.png

1732 ms

1624973792-neweuropeanbauhaus-gen-square.jpg

1624973792-neweuropeanbauhaus-gen-square.jpg

1907 ms

1624951287-photo-aerienne.jpg

1624951287-photo-aerienne.jpg

2128 ms

1623413140-brochure-entete.JPG

1623413140-brochure-entete.JPG

2061 ms

1617893652-img-3022-2-abattoir.jpg

1617893652-img-3022-2-abattoir.jpg

2105 ms

1608549222-icic2020-vignes.jpg

1608549222-icic2020-vignes.jpg

2413 ms

1610625599-affiche-harze-v5.jpg

1610625599-affiche-harze-v5.jpg

2506 ms

partners-metrolab.png

partners-metrolab.png

2158 ms

partners-ucl.png

partners-ucl.png

2202 ms

partners-ulb.png

partners-ulb.png

2225 ms

partners-ue.png

partners-ue.png

2544 ms

KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff

KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff

70 ms

KFOlCnqEu92Fr1MmWUlfBBc-AMP6lQ.woff

KFOlCnqEu92Fr1MmWUlfBBc-AMP6lQ.woff

71 ms

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aXx-p7K4GLs.woff

JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aXx-p7K4GLs.woff

72 ms

analytics.js

analytics.js

55 ms

collect

collect

27 ms

js

js

62 ms

Accessibility Review

metrolab.brussels accessibility score

80

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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

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

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

Best Practices

metrolab.brussels best practices score

83

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

SEO Factors

metrolab.brussels SEO score

91

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

metrolab.brussels

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