Tools & Wizards About Us
lenntech.nl screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 78

    SEO

    Google-friendlier than
    39% of websites

lenntech.nl

Lenntech Waterbehandeling

Page Load Speed

3.5 sec in total

First Response

307 ms

Resources Loaded

3.1 sec

Page Rendered

119 ms

lenntech.nl screenshot

About Website

Visit lenntech.nl now to see the best up-to-date Lenntech content for Netherlands and also check out these interesting facts you probably never knew about lenntech.nl

Lenntech ontwerpt, bouwt en installeert alle soorten waterzuiverings systemen om bronwater, oppervlakte water en leidingwater zodanig te zuiveren dat ze aan de process water eisen van de industrie vol...

Visit lenntech.nl

Key Findings

We analyzed Lenntech.nl page load time and found that the first response time was 307 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

lenntech.nl performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value16.1 s

0/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value1,810 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value16.1 s

6/100

10%

Network Requests Diagram

lenntech.nl

307 ms

www.lenntech.nl

577 ms

googlefonts.min.css

426 ms

bootstrap.min.css

194 ms

lenntech.min.css

357 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 15% of them (17 requests) were addressed to the original Lenntech.nl, 73% (80 requests) were made to Lenntech.com and 5% (5 requests) were made to C.delivery.consentmanager.net. The less responsive or slowest element that took the longest time to load (854 ms) relates to the external source Lenntech.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 315.2 kB (8%)

Content Size

3.8 MB

After Optimization

3.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lenntech.nl main page is 3.8 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. 60% of websites need less resources to load. Images take 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 105.4 kB

  • Original 130.3 kB
  • After minification 128.5 kB
  • After compression 24.9 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 105.4 kB or 81% of the original size.

Image Optimization

-6%

Potential reduce by 207.1 kB

  • Original 3.2 MB
  • After minification 3.0 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. Lenntech images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.2 kB

  • Original 384.6 kB
  • After minification 384.6 kB
  • After compression 382.5 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

-1%

Potential reduce by 538 B

  • Original 44.1 kB
  • After minification 44.1 kB
  • After compression 43.6 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. Lenntech.nl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 25 (27%)

Requests Now

92

After Optimization

67

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lenntech. 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

lenntech.nl

lenntech.nl

307 ms

www.lenntech.nl

www.lenntech.nl

577 ms

googlefonts.min.css

googlefonts.min.css

426 ms

bootstrap.min.css

bootstrap.min.css

194 ms

lenntech.min.css

lenntech.min.css

357 ms

api.js

api.js

36 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

474 ms

bootstrap.min.js

bootstrap.min.js

397 ms

dependencies.js

dependencies.js

604 ms

js.cookie.min.js

js.cookie.min.js

448 ms

main.min-v2.js

main.min-v2.js

448 ms

Tracer.js

Tracer.js

51 ms

addthis_widget.js

addthis_widget.js

167 ms

in.js

in.js

36 ms

cmp.php

cmp.php

485 ms

cmp_final.min.js

cmp_final.min.js

237 ms

deflag.gif

deflag.gif

99 ms

logo_trans.png

logo_trans.png

100 ms

Lenntech_logo_blue.jpg

Lenntech_logo_blue.jpg

139 ms

en.gif

en.gif

146 ms

UpperbannerLenntech2.jpg

UpperbannerLenntech2.jpg

145 ms

Home-front-1.jpg

Home-front-1.jpg

397 ms

Home-front-2.jpg

Home-front-2.jpg

370 ms

DSC01745-2A.jpg

DSC01745-2A.jpg

213 ms

boiler.png

boiler.png

249 ms

water-5.jpg

water-5.jpg

370 ms

kraanwater.png

kraanwater.png

369 ms

Irigation_small.jpg

Irigation_small.jpg

367 ms

Waste_water_small.jpg

Waste_water_small.jpg

370 ms

solarwind.jpg

solarwind.jpg

458 ms

SPX.jpg

SPX.jpg

456 ms

Seawater.jpg

Seawater.jpg

544 ms

Surface_water_small.jpg

Surface_water_small.jpg

457 ms

Pentair-5600SXT.png

Pentair-5600SXT.png

455 ms

desinfection_small.jpg

desinfection_small.jpg

475 ms

erts.png

erts.png

562 ms

Arsenic.png

Arsenic.png

562 ms

Nitrates.png

Nitrates.png

564 ms

Remineralisation.png

Remineralisation.png

563 ms

hm-remover.png

hm-remover.png

569 ms

Pestiside.png

Pestiside.png

639 ms

Lennro.png

Lennro.png

642 ms

Deepfilter.png

Deepfilter.png

642 ms

LennRO-2000.png

LennRO-2000.png

642 ms

Ultra-module.png

Ultra-module.png

640 ms

ATG-SP-2.png

ATG-SP-2.png

664 ms

image002.png

image002.png

721 ms

flaguk.gif

flaguk.gif

96 ms

esflag.gif

esflag.gif

93 ms

frflag.gif

frflag.gif

177 ms

itflag.gif

itflag.gif

178 ms

nlflag.gif

nlflag.gif

184 ms

plflag.gif

plflag.gif

359 ms

ptflag.gif

ptflag.gif

355 ms

flagtr.jpg

flagtr.jpg

357 ms

flagsarab2.gif

flagsarab2.gif

357 ms

shipping_to_and_phone.cgi

shipping_to_and_phone.cgi

605 ms

IonPure-LX-HI.png

IonPure-LX-HI.png

688 ms

ionicons.ttf

ionicons.ttf

486 ms

Clarifier.png

Clarifier.png

687 ms

sediment_small.jpg

sediment_small.jpg

633 ms

home_V3.jpg

home_V3.jpg

644 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

272 ms

oxidengen.png

oxidengen.png

664 ms

toray_2.png

toray_2.png

678 ms

Chemicals-5.jpg

Chemicals-5.jpg

854 ms

AQL-940-945.png

AQL-940-945.png

673 ms

PICT0427.JPG

PICT0427.JPG

683 ms

filter_media_small.png

filter_media_small.png

616 ms

eaton%20loftop.jpg

eaton%20loftop.jpg

533 ms

grundfos-total.png

grundfos-total.png

577 ms

Valve-2.png

Valve-2.png

539 ms

Spares.png

Spares.png

549 ms

slide-1.png

slide-1.png

560 ms

slide-2.png

slide-2.png

595 ms

slide-3.png

slide-3.png

609 ms

slide-4.png

slide-4.png

610 ms

slide-5.png

slide-5.png

561 ms

slide-6.png

slide-6.png

570 ms

slide-7.png

slide-7.png

613 ms

slide-8.png

slide-8.png

634 ms

cmp.php

cmp.php

101 ms

slide-99.png

slide-99.png

627 ms

slide-10.png

slide-10.png

544 ms

slide-11.png

slide-11.png

552 ms

slide-12.png

slide-12.png

560 ms

VCA2017-C80A.png

VCA2017-C80A.png

602 ms

OHSAS45001-C80A.png

OHSAS45001-C80A.png

616 ms

ISO4001-C80A.png

ISO4001-C80A.png

621 ms

cmp.php

cmp.php

104 ms

ISO9001-C80A.png

ISO9001-C80A.png

552 ms

bV8xLndfOTI0Mzgucl9HRFBSLmxfbmwuZF8zNDAxMS54XzIudi5wLnRfMzQwMTEueHRfMg.js

bV8xLndfOTI0Mzgucl9HRFBSLmxfbmwuZF8zNDAxMS54XzIudi5wLnRfMzQwMTEueHRfMg.js

639 ms

home_V3.jpg

home_V3.jpg

466 ms

PICT0427.jpg

PICT0427.jpg

564 ms

Slide-1.png

Slide-1.png

522 ms

Slide-2.png

Slide-2.png

411 ms

Slide-3.png

Slide-3.png

544 ms

Slide-4.png

Slide-4.png

370 ms

Slide-5.png

Slide-5.png

454 ms

Slide-6.png

Slide-6.png

511 ms

Slide-7.png

Slide-7.png

392 ms

Slide-8.png

Slide-8.png

477 ms

Slide-99.png

Slide-99.png

727 ms

Slide-10.png

Slide-10.png

449 ms

Slide-11.png

Slide-11.png

535 ms

Slide-12.png

Slide-12.png

506 ms

recall_settings.svg

recall_settings.svg

34 ms

102 ms

cmplogo.svg

cmplogo.svg

15 ms

187 ms

Accessibility Review

lenntech.nl accessibility score

68

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

[id] attributes on active, focusable elements are not unique

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

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

lenntech.nl best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

lenntech.nl SEO score

78

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lenntech.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch 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 Lenntech.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

lenntech.nl

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