Tools & Wizards About Us
tubro.nl screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 74

    SEO

    Google-friendlier than
    31% of websites

tubro.nl

Home

Page Load Speed

6.6 sec in total

First Response

1.8 sec

Resources Loaded

4.7 sec

Page Rendered

185 ms

tubro.nl screenshot

About Website

Welcome to tubro.nl homepage info - get ready to check Tubro best content right away, or after learning these important things about tubro.nl

Welkom op de internetpagina van Tubro Filter- & Luchttechniek. Leverancier van o.a. afzuiginstallaties, hout- en biomassa verbrandingsinstallaties, opslag, rookgasreiniging, ventilatoren, schuurtafels...

Visit tubro.nl

Key Findings

We analyzed Tubro.nl page load time and found that the first response time was 1.8 sec and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

tubro.nl performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.0 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value650 ms

46/100

30%

CLS (Cumulative Layout Shift)

Value0.067

97/100

15%

TTI (Time to Interactive)

Value14.1 s

9/100

10%

Network Requests Diagram

tubro.nl

1773 ms

bootstrap.min.css

443 ms

bootstrap-responsive.css

269 ms

djimageslider.css

184 ms

maximenuck.php

272 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 85% of them (60 requests) were addressed to the original Tubro.nl, 3% (2 requests) were made to Fonts.googleapis.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Tubro.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (54%)

Content Size

1.9 MB

After Optimization

882.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tubro.nl main page is 1.9 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. Javascripts take 875.2 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 114.9 kB

  • Original 131.0 kB
  • After minification 116.6 kB
  • After compression 16.1 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 14.4 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 114.9 kB or 88% of the original size.

Image Optimization

-3%

Potential reduce by 13.1 kB

  • Original 410.1 kB
  • After minification 396.9 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. Tubro images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 468.2 kB

  • Original 875.2 kB
  • After minification 845.6 kB
  • After compression 406.9 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 468.2 kB or 54% of the original size.

CSS Optimization

-88%

Potential reduce by 448.7 kB

  • Original 511.4 kB
  • After minification 412.6 kB
  • After compression 62.7 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. Tubro.nl needs all CSS files to be minified and compressed as it can save up to 448.7 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (66%)

Requests Now

67

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tubro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tubro.nl

tubro.nl

1773 ms

bootstrap.min.css

bootstrap.min.css

443 ms

bootstrap-responsive.css

bootstrap-responsive.css

269 ms

djimageslider.css

djimageslider.css

184 ms

maximenuck.php

maximenuck.php

272 ms

beez3-position1.css

beez3-position1.css

185 ms

maximenuresponsiveck.css

maximenuresponsiveck.css

277 ms

jquery.min.js

jquery.min.js

498 ms

jquery-noconflict.js

jquery-noconflict.js

356 ms

jquery-migrate.min.js

jquery-migrate.min.js

360 ms

caption.js

caption.js

364 ms

bootstrap.min.js

bootstrap.min.js

452 ms

jquery.easing.min.js

jquery.easing.min.js

449 ms

slider.js

slider.js

455 ms

jquery.ui.core.min.js

jquery.ui.core.min.js

457 ms

maximenuck.v8.js

maximenuck.v8.js

534 ms

fancymenuck.v8.js

fancymenuck.v8.js

551 ms

font-awesome.css

font-awesome.css

549 ms

k2style.css

k2style.css

636 ms

joomla.css

joomla.css

639 ms

template.css

template.css

593 ms

style1.css

style1.css

624 ms

tubro-custom.css

tubro-custom.css

642 ms

css

css

19 ms

css

css

37 ms

backtop.js

backtop.js

644 ms

main.css

main.css

827 ms

creativecss-ui.css

creativecss-ui.css

715 ms

creative-scroll.css

creative-scroll.css

727 ms

creative-tooltip.css

creative-tooltip.css

732 ms

creativelib.js

creativelib.js

829 ms

creativelib-ui.js

creativelib-ui.js

1089 ms

creative-mousewheel.js

creative-mousewheel.js

829 ms

creative-scroll.js

creative-scroll.js

837 ms

generate.css.php

generate.css.php

838 ms

api.js

api.js

44 ms

creativecontactform.js

creativecontactform.js

957 ms

analytics.js

analytics.js

9 ms

collect

collect

25 ms

js

js

72 ms

Tubro-zonder-onderschrift-trans-klein-0248x050.png

Tubro-zonder-onderschrift-trans-klein-0248x050.png

95 ms

fond_bg.png

fond_bg.png

144 ms

separator.png

separator.png

143 ms

SCHUKO_079-front-top.png

SCHUKO_079-front-top.png

143 ms

Houtbreker-fornt-topkopie.png

Houtbreker-fornt-topkopie.png

145 ms

Verbranding-front-top.png

Verbranding-front-top.png

144 ms

Briketpers-100x100.png

Briketpers-100x100.png

168 ms

Octopus-20-rechtsboven-50x50.png

Octopus-20-rechtsboven-50x50.png

185 ms

bochten-50x50.png

bochten-50x50.png

188 ms

loader.gif

loader.gif

189 ms

schuko-tubro_filter_01.jpg

schuko-tubro_filter_01.jpg

281 ms

schuko-tubro_entstauber.jpg

schuko-tubro_entstauber.jpg

193 ms

schuko-tubro_entsorgung.jpg

schuko-tubro_entsorgung.jpg

264 ms

binder-verbranding-00.jpg

binder-verbranding-00.jpg

362 ms

brandstof-compilatie-00.jpg

brandstof-compilatie-00.jpg

278 ms

schuko-tubro_anlagenbauteile.jpg

schuko-tubro_anlagenbauteile.jpg

283 ms

prev.png

prev.png

284 ms

next.png

next.png

359 ms

play.png

play.png

371 ms

pause.png

pause.png

373 ms

technische-tekenimg-producten-service-h150.jpg

technische-tekenimg-producten-service-h150.jpg

378 ms

handen-schudden-contact-h150.jpg

handen-schudden-contact-h150.jpg

377 ms

ajax-loader.gif

ajax-loader.gif

452 ms

captcha.php

captcha.php

506 ms

glyphicons-halflings.png

glyphicons-halflings.png

462 ms

recaptcha__en.js

recaptcha__en.js

81 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

7 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

14 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

491 ms

skype.png

skype.png

602 ms

twitter.png

twitter.png

347 ms

Accessibility Review

tubro.nl accessibility score

73

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.

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

ARIA IDs are not unique

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

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

tubro.nl 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tubro.nl SEO score

74

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 Tubro.nl 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 Tubro.nl 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

tubro.nl

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