Tools & Wizards About Us
svlw.ch screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

svlw.ch

Aktuelle Informationen zur Lufthygiene / Wasserhygiene

Page Load Speed

3.9 sec in total

First Response

863 ms

Resources Loaded

2.5 sec

Page Rendered

570 ms

svlw.ch screenshot

About Website

Click here to check amazing Svlw content. Otherwise, check out these important facts you probably never knew about svlw.ch

Der Verein ist eine Plattform zwischen Nutzer - Normen - Bildung und Firmen. In Zusammenarbeit mit Weiterbildungsinstituten und Fachfirmen bieten wir Weiterbildungskurse, Wegleitungen und Werkzeuge od...

Visit svlw.ch

Key Findings

We analyzed Svlw.ch page load time and found that the first response time was 863 ms and then it took 3 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

svlw.ch performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0.039

100/100

15%

TTI (Time to Interactive)

Value5.8 s

67/100

10%

Network Requests Diagram

svlw.ch

863 ms

jcemediabox.css

196 ms

style.css

196 ms

widgetkit-6f8f0754.css

198 ms

mootools-core.js

293 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 89% of them (75 requests) were addressed to the original Svlw.ch, 4% (3 requests) were made to S.ytimg.com and 2% (2 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (863 ms) belongs to the original domain Svlw.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 996.8 kB (59%)

Content Size

1.7 MB

After Optimization

707.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Svlw.ch main page is 1.7 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. 55% of websites need less resources to load. Javascripts take 873.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 56.6 kB

  • Original 70.9 kB
  • After minification 67.7 kB
  • After compression 14.3 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. 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 56.6 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 26.9 kB

  • Original 395.7 kB
  • After minification 368.8 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. Svlw images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 612.2 kB

  • Original 873.9 kB
  • After minification 867.8 kB
  • After compression 261.7 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 612.2 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 301.1 kB

  • Original 363.3 kB
  • After minification 340.9 kB
  • After compression 62.2 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. Svlw.ch needs all CSS files to be minified and compressed as it can save up to 301.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (51%)

Requests Now

81

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Svlw. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

svlw.ch

svlw.ch

863 ms

jcemediabox.css

jcemediabox.css

196 ms

style.css

style.css

196 ms

widgetkit-6f8f0754.css

widgetkit-6f8f0754.css

198 ms

mootools-core.js

mootools-core.js

293 ms

core.js

core.js

202 ms

caption.js

caption.js

281 ms

mootools-more.js

mootools-more.js

575 ms

jcemediabox.js

jcemediabox.js

385 ms

jquery.js

jquery.js

482 ms

widgetkit-d5caf987.js

widgetkit-d5caf987.js

309 ms

base.css

base.css

376 ms

layout.css

layout.css

387 ms

menus.css

menus.css

389 ms

modules.css

modules.css

473 ms

tools.css

tools.css

479 ms

system.css

system.css

482 ms

extensions.css

extensions.css

484 ms

custom.css

custom.css

567 ms

arial.css

arial.css

636 ms

arial.css

arial.css

636 ms

style.css

style.css

636 ms

responsive.css

responsive.css

637 ms

print.css

print.css

663 ms

warp.js

warp.js

667 ms

responsive.js

responsive.js

674 ms

accordionmenu.js

accordionmenu.js

674 ms

dropdownmenu.js

dropdownmenu.js

674 ms

template.js

template.js

674 ms

lightbox.js

lightbox.js

135 ms

mediaelement-and-player.js

mediaelement-and-player.js

138 ms

spotlight.js

spotlight.js

150 ms

base.css

base.css

146 ms

layout.css

layout.css

150 ms

menus.css

menus.css

148 ms

modules.css

modules.css

226 ms

tools.css

tools.css

229 ms

system.css

system.css

243 ms

system.css

system.css

245 ms

system-all.css

system-all.css

246 ms

responsive.css

responsive.css

242 ms

print.css

print.css

290 ms

svlw-logo.jpg

svlw-logo.jpg

111 ms

navi.png

navi.png

111 ms

aktuelles.jpg

aktuelles.jpg

223 ms

printButton.png

printButton.png

100 ms

Bern_-_wer-130x130.png

Bern_-_wer-130x130.png

225 ms

SBB_Hauptsitz_-160x106.jpg

SBB_Hauptsitz_-160x106.jpg

110 ms

Energieettikette-151x113.png

Energieettikette-151x113.png

223 ms

energie_schweiz-118x143.png

energie_schweiz-118x143.png

359 ms

Luftverschmutzung-150x113.png

Luftverschmutzung-150x113.png

225 ms

Rechtssprechung_Berlin_-134x127.png

Rechtssprechung_Berlin_-134x127.png

360 ms

Kursteilnehmer_KLA1-174x98.jpg

Kursteilnehmer_KLA1-174x98.jpg

359 ms

KGTV_Massnahmen-153x110.png

KGTV_Massnahmen-153x110.png

359 ms

SVLW_Jeder_Atemzug_zaehlt-130x130.png

SVLW_Jeder_Atemzug_zaehlt-130x130.png

359 ms

SVLW_Infopoint_Swissbau_Basel_2016-125x135.jpg

SVLW_Infopoint_Swissbau_Basel_2016-125x135.jpg

360 ms

Legionellen_-133x127.jpg

Legionellen_-133x127.jpg

447 ms

EU-Feinstaub_PM_2.5-131x130.png

EU-Feinstaub_PM_2.5-131x130.png

492 ms

Meteostation_Jungfrau_Joch-180x94.png

Meteostation_Jungfrau_Joch-180x94.png

488 ms

Konzentrationsfahigkeit-164x103.png

Konzentrationsfahigkeit-164x103.png

445 ms

VSEI_-_SVLW_gute_Raumluft-167x102.jpg

VSEI_-_SVLW_gute_Raumluft-167x102.jpg

446 ms

Biomonitorin_VDI_Monica_Waber_-127x133.png

Biomonitorin_VDI_Monica_Waber_-127x133.png

449 ms

dena-studie_-151x112.jpg

dena-studie_-151x112.jpg

497 ms

energieettikette_.jpg

energieettikette_.jpg

499 ms

Innenraumklima_-_Coutalides_-128x132.jpg

Innenraumklima_-_Coutalides_-128x132.jpg

498 ms

Organismus_Raumlufttechnik-134x127.jpg

Organismus_Raumlufttechnik-134x127.jpg

506 ms

Dicke_Luft_LCH-139x122.jpg

Dicke_Luft_LCH-139x122.jpg

584 ms

KGTV_Logo-169x100.jpg

KGTV_Logo-169x100.jpg

586 ms

energie-cluster.jpeg

energie-cluster.jpeg

595 ms

banner-raumluft.jpg

banner-raumluft.jpg

596 ms

totop_scroller.png

totop_scroller.png

594 ms

popup.html

popup.html

543 ms

tooltip.html

tooltip.html

624 ms

yDL5RoI0890

yDL5RoI0890

78 ms

W_6DOorHCik

W_6DOorHCik

154 ms

close.png

close.png

623 ms

blank.gif

blank.gif

630 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

20 ms

www-embed-player.js

www-embed-player.js

52 ms

base.js

base.js

86 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

43 ms

ad_status.js

ad_status.js

75 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

88 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

88 ms

Accessibility Review

svlw.ch accessibility score

85

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

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

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

Best Practices

svlw.ch 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

svlw.ch SEO score

98

Search Engine Optimization Advices

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

svlw.ch

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