slf.ch Website Information

Daily Unique Visits: 16,796

Daily Page Views: 100,776

Income Per Day: $202

Estimated Value: $145,440

This website is located in Switzerland and is using following IP address 195.176.244.111. See the complete list of popular websites hosted in Switzerland.

slf.ch is registered under .CH top-level domain. Please check other sites in .CH zone.

Website slf.ch is using the following name servers:

ns2.slf.ch
scsnms.switch.ch
ns1.slf.ch

and is probably hosted by SWITCH. See the full list of other websites hosted by SWITCH.

The highest website slf.ch position in Alexa rank database was 18295 and the lowest rank position was 995963. Current position of slf.ch in Alexa rank database is 85392.

Desktop speed score of slf.ch (71/100) is better than the results of 52.66% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of slf.ch (63/100) is better than the results of 9.16% of other sites and means that the page is not mobile-friendly.

Mobile speed score of slf.ch (59/100) is better than the results of 52.41% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

slf.ch Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

slf.ch whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

Requests of this client are not permitted. Please use https://www.nic.ch/whois/ for queries.

slf.ch server information

Servers Location

slf.ch desktop page speed rank

Last tested: 2017-05-18

Desktop Speed Medium

71/100

slf.ch Desktop Speed Test Quick Summary

priority - 18Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

http://www.slf.ch/Diagonal_2_16.jpg (expiration not specified)
http://www.slf.ch/FB-f-Logo__blue_29.png (expiration not specified)
http://www.slf.ch/YouTube-social-squircle_red_24px.png (expiration not specified)
http://www.slf.ch/dienstleistungen/news/2017-05-15/index_DE/thumbnail (expiration not specified)
http://www.slf.ch/fragment/css/lwp-gk/jquery-ui-1.8.20.custom.css (expiration not specified)
http://www.slf.ch/fragment/css/lwp.css (expiration not specified)
http://www.slf.ch/fragment/js/jquery-1.7.2.min.js (expiration not specified)
http://www.slf.ch/fragment/js/jquery-ui-1.8.20.custom.min.js (expiration not specified)
http://www.slf.ch/fragment/js/jquery.mousewheel.js (expiration not specified)
http://www.slf.ch/fragment/js/lwp-gk.js (expiration not specified)
http://www.slf.ch/fragment/js/wz_tooltip.js (expiration not specified)
http://www.slf.ch/icon_achtung.gif (expiration not specified)
http://www.slf.ch/schneeinfo/wochenbericht_c_teaser.jpg (expiration not specified)
http://www.slf.ch/style/basis.css (expiration not specified)
http://www.slf.ch/style/bg3.css (expiration not specified)
http://www.slf.ch/style/bg3_start.jpg (expiration not specified)
http://www.slf.ch/style/bg_footer_area.gif (expiration not specified)
http://www.slf.ch/style/bg_lupe.gif (expiration not specified)
http://www.slf.ch/style/bg_main_nav.gif (expiration not specified)
http://www.slf.ch/style/bg_mainnav_left.gif (expiration not specified)
http://www.slf.ch/style/bg_mainnav_right.gif (expiration not specified)
http://www.slf.ch/style/bg_mainnav_right_a.gif (expiration not specified)
http://www.slf.ch/style/bg_mainnavhome_a.gif (expiration not specified)
http://www.slf.ch/style/bg_service_area.gif (expiration not specified)
http://www.slf.ch/style/bg_subnav.gif (expiration not specified)
http://www.slf.ch/style/content.css (expiration not specified)
http://www.slf.ch/style/doppelbox.css (expiration not specified)
http://www.slf.ch/style/icon_pfeil_li.gif (expiration not specified)
http://www.slf.ch/style/jquery.bxslider.css (expiration not specified)
http://www.slf.ch/style/jquery.bxslider.min.js (expiration not specified)
http://www.slf.ch/style/lupe_schatten.png (expiration not specified)
http://www.slf.ch/style/main_nav_rollover.js (expiration not specified)
http://www.slf.ch/style/pix.gif (expiration not specified)
http://www.slf.ch/style/relaunch.css (expiration not specified)
http://www.slf.ch/style/slflogo.gif (expiration not specified)
http://www.slf.ch/style/wsl_logo.gif (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 12Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 116.9KiB (58% reduction).

Compressing http://www.slf.ch/dienstleistungen/news/2017-05-15/index_DE/thumbnail could save 38.1KiB (65% reduction).
Compressing http://www.slf.ch/schneeinfo/wochenbericht_c_teaser.jpg could save 33.7KiB (78% reduction).
Compressing http://www.slf.ch/Diagonal_2_16.jpg could save 24.8KiB (86% reduction).
Compressing http://www.slf.ch/style/bg3_start.jpg could save 18.1KiB (29% reduction).
Compressing http://www.slf.ch/style/bg_main_nav.gif could save 1,023B (50% reduction).
Compressing http://www.slf.ch/style/bg_mainnav_right_a.gif could save 690B (61% reduction).
Compressing http://www.slf.ch/icon_achtung.gif could save 523B (48% reduction).

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://www.slf.ch/fragment/js/jquery-1.7.2.min.js
http://www.slf.ch/fragment/js/jquery-ui-1.8.20.custom.min.js
http://www.slf.ch/fragment/js/jquery.mousewheel.js
http://www.slf.ch/fragment/js/lwp-gk.js
http://www.slf.ch/style/jquery.bxslider.min.js

Optimize CSS Delivery of the following:

http://www.slf.ch/style/content.css
http://www.slf.ch/style/basis.css
http://www.slf.ch/style/doppelbox.css
http://www.slf.ch/style/relaunch.css
http://www.slf.ch/style/bg3.css
http://www.slf.ch/fragment/css/lwp-gk/jquery-ui-1.8.20.custom.css
http://www.slf.ch/fragment/css/lwp.css
http://www.slf.ch/style/jquery.bxslider.css

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 5.2KiB (43% reduction).

Minifying http://www.slf.ch/fragment/js/wz_tooltip.js could save 5.2KiB (43% reduction) after compression.

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 3.3KiB (26% reduction).

Minifying http://www.slf.ch/fragment/css/lwp-gk/jquery-ui-1.8.20.custom.css could save 1.5KiB (27% reduction) after compression.
Minifying http://www.slf.ch/style/basis.css could save 923B (23% reduction) after compression.
Minifying http://www.slf.ch/style/content.css could save 868B (27% reduction) after compression.

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 1.1KiB (19% reduction).

Minifying http://www.slf.ch/ could save 1.1KiB (19% reduction) after compression.

slf.ch Desktop Resource Breakdown

Total Resources	40
Number of Hosts	3
Static Resources	37
JavaScript Resources	8
CSS Resources	8

slf.ch mobile page speed rank

Last tested: 2017-05-18

Mobile Speed Bad

59/100

slf.ch Mobile Speed Test Quick Summary

priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 28Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 12Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 116.9KiB (58% reduction).

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 5.2KiB (43% reduction).

Minifying http://www.slf.ch/fragment/js/wz_tooltip.js could save 5.2KiB (43% reduction) after compression.

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 3.3KiB (26% reduction).

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 1.1KiB (19% reduction).

Minifying http://www.slf.ch/ could save 1.1KiB (19% reduction) after compression.

slf.ch Mobile Resource Breakdown

Total Resources	40
Number of Hosts	3
Static Resources	37
JavaScript Resources	8
CSS Resources	8

slf.ch mobile page usability

Last tested: 2017-05-18

Mobile Usability Bad

63/100

slf.ch Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

WSL-Institut f…nforschung SLF renders only 4 pixels tall (11 CSS pixels).

DE renders only 4 pixels tall (11 CSS pixels).

FR and 2 others render only 4 pixels tall (11 CSS pixels).

KONTAKT and 2 others render only 4 pixels tall (11 CSS pixels).

Home renders only 4 pixels tall (11 CSS pixels).

Dienstleistungen und Produkte and 5 others render only 4 pixels tall (11 CSS pixels).

Lawineninfo and 1 others render only 8 pixels tall (20 CSS pixels).

Winterrückblick 2016/2017 and 3 others render only 6 pixels tall (16 CSS pixels).

Natürliche Störungen nehmen zu and 1 others render only 5 pixels tall (12 CSS pixels).

gültig bis and 6 others render only 5 pixels tall (12 CSS pixels).

- De…zwanzig Jahre. and 2 others render only 5 pixels tall (12 CSS pixels).

Mehr and 5 others render only 5 pixels tall (12 CSS pixels).

Alle News and 2 others render only 5 pixels tall (12 CSS pixels).

l renders only 5 pixels tall (12 CSS pixels).

Das WSL-Magazin and 1 others render only 5 pixels tall (12 CSS pixels).

SLF/WSL-Forschung and 2 others render only 5 pixels tall (12 CSS pixels).

Lawinenbulletin renders only 6 pixels tall (16 CSS pixels).

18. Mai 2017 renders only 5 pixels tall (12 CSS pixels).

Rascher Anstie…nasser Lawinen renders only 5 pixels tall (12 CSS pixels).

aktualisiert a…05.2017, 17:00 renders only 5 pixels tall (12 CSS pixels).

Forschung renders only 8 pixels tall (20 CSS pixels).

Bergwälder der Alpen and 2 others render only 6 pixels tall (16 CSS pixels).

- Ei…rungen führen. and 2 others render only 5 pixels tall (12 CSS pixels).

und damit des ETH-Bereichs and 2 others render only 4 pixels tall (11 CSS pixels).

Eidg. Forschungsanstalt WSL and 2 others render only 4 pixels tall (11 CSS pixels).

priority - 10Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="/index_DE" class="sprache_on">DE</a> is close to 1 other tap targets.

The tap target <a href="/index_FR" class="sprache_off">FR</a> and 2 others are close to other tap targets.

The tap target <a href="/dienstleistungen/rss/index_DE">RSS</a> is close to 2 other tap targets.

The tap target <a href="/medien_DE">MEDIEN</a> and 1 others are close to other tap targets.

The tap target <a href="javascript:doc…form.submit();" class="go"></a> is close to 1 other tap targets.

The tap target <a href="/index_DE" class="mainnav_on">Home</a> is close to 1 other tap targets.

The tap target <a href="/schneeinfo/index_DE" class="mainnav_off">Schneeinfo</a> and 3 others are close to other tap targets.

The tap target <a href="http://www.wsl…ahlen/index_DE">Mehr</a> is close to 2 other tap targets.

The tap target <a href="http://www.slf…/news/index_DE">Alle News</a> and 1 others are close to other tap targets.

The tap target <a href="https://www.fa…com/whiterisk/" class="image"></a> and 2 others are close to other tap targets.

The tap target <a href="https://www.fa…com/whiterisk/">White Risk</a> and 2 others are close to other tap targets.

The tap target <a href="/impressum_DE">Impressum</a> and 1 others are close to other tap targets.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

slf.ch HTML validation

Errors

Bad value “Suche-&-Themen” for attribute “id” on element “g”: Not a valid XML 1.0 name.

Line: 43 Column: 424 - 577
"...le></defs><g id="Suche-&-Themen" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" font-size="12" font-family="'Libre Franklin'" font-weight="100"><g id=..." Line: 45 Column: 424 - 577
"...le></defs><g id="Suche-&-Themen" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" font-size="10" font-family="'Libre Franklin'" font-weight="100"><g id=..." Line: 47 Column: 424 - 577
"...le></defs><g id="Suche-&-Themen" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" font-size="12" font-family="'Libre Franklin'" font-weight="100"><g id=..."

Duplicate ID “Suche-&-Themen”.

Line: 45 Column: 424 - 577
"...le></defs><g id="Suche-&-Themen" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" font-size="10" font-family="'Libre Franklin'" font-weight="100"><g id=..." Line: 47 Column: 424 - 577
"...le></defs><g id="Suche-&-Themen" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" font-size="12" font-family="'Libre Franklin'" font-weight="100"><g id=..."

Duplicate ID “wsl-desktop-suchresultate”.

Line: 45 Column: 578 - 672
"...ght="100"><g id="wsl-desktop-suchresultate" transform="translate(-35.000000, -67.000000)" fill="#FFFFFF"><g id=..." Line: 47 Column: 578 - 672
"...ght="100"><g id="wsl-desktop-suchresultate" transform="translate(-35.000000, -67.000000)" fill="#000000"><g id=..."

Duplicate ID “Linke-Spalte-Navigation”.

Line: 45 Column: 673 - 747
"..."#FFFFFF"><g id="Linke-Spalte-Navigation" transform="translate(-0.799974, 0.000000)"><g id=..." Line: 47 Column: 673 - 747
"..."#000000"><g id="Linke-Spalte-Navigation" transform="translate(-0.799974, 0.000000)"><g id=..."

Duplicate ID “Logo”.

Line: 45 Column: 748 - 804
"....000000)"><g id="Logo" transform="translate(12.999973, 11.599999)"><text ..." Line: 47 Column: 748 - 804
"....000000)"><g id="Logo" transform="translate(12.999973, 11.599999)"><text ..."

Duplicate ID “Eidg.-Forschungsanst”.

Line: 45 Column: 805 - 853
"....599999)"><text id="Eidg.-Forschungsanst" textlength="265"><tspan..." Line: 47 Column: 805 - 853
"....599999)"><text id="Eidg.-Forschungsanst" textlength="289"><tspan..."

Element “style” not allowed as child of element “article” in this context. (Suppressing further errors from this subtree.)

Line: 71 Column: 6 - 12
"...iv> <style>div#so..."

Duplicate ID “winter”.

Line: 327 Column: 5 - 53
".../div> <div id="winter" class="singleCard singleCard_0"> <div..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 359 Column: 4 - 80
"...-img"> <img src="/avalanche/bki/bki_de_c_teaser.gif" data-desktop="" data-mobile=""></div>..."

Duplicate ID “text_bulletin”.

Line: 367 Column: 5 - 60
"...> <div id="text_bulletin" class="singleCard singleCard_0"> <div..."

Warnings

The first occurrence of ID “Suche-&-Themen” was here.

The first occurrence of ID “wsl-desktop-suchresultate” was here.

Line: 43 Column: 578 - 672
"...ght="100"><g id="wsl-desktop-suchresultate" transform="translate(-35.000000, -67.000000)" fill="#FFFFFF"><g id=..." Line: 43 Column: 578 - 672
"...ght="100"><g id="wsl-desktop-suchresultate" transform="translate(-35.000000, -67.000000)" fill="#FFFFFF"><g id=..."

The first occurrence of ID “Linke-Spalte-Navigation” was here.

Line: 43 Column: 673 - 747
"..."#FFFFFF"><g id="Linke-Spalte-Navigation" transform="translate(-0.799974, 0.000000)"><g id=..." Line: 43 Column: 673 - 747
"..."#FFFFFF"><g id="Linke-Spalte-Navigation" transform="translate(-0.799974, 0.000000)"><g id=..."

The first occurrence of ID “Logo” was here.

Line: 43 Column: 748 - 804
"....000000)"><g id="Logo" transform="translate(12.999973, 11.599999)"><text ..." Line: 43 Column: 748 - 804
"....000000)"><g id="Logo" transform="translate(12.999973, 11.599999)"><text ..."

The first occurrence of ID “Eidg.-Forschungsanst” was here.

Line: 43 Column: 805 - 853
"....599999)"><text id="Eidg.-Forschungsanst" textlength="289"><tspan..." Line: 43 Column: 805 - 853
"....599999)"><text id="Eidg.-Forschungsanst" textlength="289"><tspan..."

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Line: 58 Column: 129 - 193
"... </a><article class="contentElement clearfix cType_list" id="ce16922"><div c..." Line: 114 Column: 135 - 197
"... </a><article class="contentElement clearfix cType_list" id="ce493"><div c..." Line: 921 Column: 132 - 239
"... </a><article class="contentElement col-xs-12 col-sm-4 col-lg-3 equalHeight clearfix cType_textmedia" id="ce185"><div c..." Line: 958 Column: 107 - 214
"... </a><article class="contentElement col-xs-12 col-sm-4 col-lg-3 equalHeight clearfix cType_textmedia" id="ce186"><div c..." Line: 995 Column: 107 - 214
"... </a><article class="contentElement col-xs-12 col-sm-4 col-lg-3 equalHeight clearfix cType_textmedia" id="ce187"><div c..." Line: 1032 Column: 107 - 214
"... </a><article class="contentElement col-xs-12 col-sm-4 col-lg-3 equalHeight clearfix cType_textmedia" id="ce190"><div c..." Line: 1069 Column: 110 - 220
"... </a><article class="contentElement col-xs-12 col-sm-4 col-lg-3 equalHeight clearfix cType_textmedia" id="ce299844"><div c..." Line: 1106 Column: 110 - 220
"... </a><article class="contentElement col-xs-12 col-sm-4 col-lg-3 equalHeight clearfix cType_textmedia" id="ce299721"><div c..."

The first occurrence of ID “winter” was here.

Line: 65 Column: 4 - 34
"...</div> <div id="winter" class="image"> ..."

The first occurrence of ID “text_bulletin” was here.

Line: 63 Column: 4 - 41
".../div> <div id="text_bulletin" class="image"> ..."

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slf.ch Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

slf.ch TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.

SLF.CH SLF Startseite

slf.ch Website Information

Advertisement

slf.ch Alexa Rank

slf.ch whois

slf.ch server information

Servers Location

slf.ch desktop page speed rank

slf.ch Desktop Speed Test Quick Summary

priority - 18Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 12Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 116.9KiB (58% reduction).

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 5.2KiB (43% reduction).

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 3.3KiB (26% reduction).

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 1.1KiB (19% reduction).

slf.ch Desktop Resource Breakdown

slf.ch mobile page speed rank

slf.ch Mobile Speed Test Quick Summary

priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 5 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 28Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 12Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 116.9KiB (58% reduction).

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 5.2KiB (43% reduction).

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 3.3KiB (26% reduction).

priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 1.1KiB (19% reduction).

slf.ch Mobile Resource Breakdown

slf.ch mobile page usability

slf.ch Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

priority - 10Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

slf.ch HTML validation

Errors

Bad value “Suche-&-Themen” for attribute “id” on element “g”: Not a valid XML 1.0 name.

Duplicate ID “Suche-&-Themen”.

Duplicate ID “wsl-desktop-suchresultate”.

Duplicate ID “Linke-Spalte-Navigation”.

Duplicate ID “Logo”.

Duplicate ID “Eidg.-Forschungsanst”.

Element “style” not allowed as child of element “article” in this context. (Suppressing further errors from this subtree.)

Duplicate ID “winter”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Duplicate ID “text_bulletin”.

Warnings

The first occurrence of ID “Suche-&-Themen” was here.

The first occurrence of ID “wsl-desktop-suchresultate” was here.

The first occurrence of ID “Linke-Spalte-Navigation” was here.

The first occurrence of ID “Logo” was here.

The first occurrence of ID “Eidg.-Forschungsanst” was here.

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.