viessmann.de: Klimalösungen: Effizient heizen, kühlen, lüften

viessmann.de 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.

Domain: viessmann.de
Status: connect

viessmann.de server information

Servers Location

viessmann.de desktop page speed rank

Last tested: 2018-11-23

Desktop Speed Medium

80/100

viessmann.de Desktop Speed Test Quick Summary

priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.viessmann.de/etc/clientlibs/viessmann/…510758916352-lc.min.js

Optimize CSS Delivery of the following:

https://www.viessmann.de/etc/clientlibs/viessmann/…10758916352-lc.min.css
https://www.viessmann.de/etc/clientlibs/viessmann/…10758916352-lc.min.css
https://fast.fonts.net/t/1.css?apiType=css&project…43ac-b8c5-2c4809e5a450

priority - 5Leverage 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:

https://www.google-analytics.com/gtm/js?id=GTM-WGM…45.1542974797&aip=true (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-5JKBZ8 (15 minutes)
https://amplify.outbrain.com/cp/obtp.js (20 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/186060…2433?v=2.8.33&r=stable (20 minutes)
https://bat.bing.com/bat.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://cdn.inspectlet.com/inspectlet.js (4 hours)
https://cdn.taboola.com/libtrc/unip/1079574/tfa.js (4 hours)
https://cdn.taboola.com/libtrc/viessmannwerkegmbhcokg-sc/tfa.js (4 hours)
https://www.viessmann.de/de/tools/global_js_snippet_head.data.js (25.9 hours)
https://www.viessmann.de/content/dam/vi-corporate/…ns/original./blank.png (6 days)

priority - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 7% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 0Minify 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 665B (14% reduction).

Minifying https://www.viessmann.de/de/tools/global_js_snippet_body.data.js could save 500B (13% reduction) after compression.
Minifying https://www.viessmann.de/de/tools/global_js_snippet_head.data.js could save 165B (24% reduction) after compression.

viessmann.de Desktop Resource Breakdown

Total Resources	62
Number of Hosts	18
Static Resources	41
JavaScript Resources	19
CSS Resources	3

viessmann.de mobile page speed rank

Last tested: 2018-11-23

Mobile Speed Medium

71/100

viessmann.de Mobile Speed Test Quick Summary

priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.viessmann.de/etc/clientlibs/viessmann/…510758916352-lc.min.js

Optimize CSS Delivery of the following:

https://www.viessmann.de/etc/clientlibs/viessmann/…10758916352-lc.min.css
https://www.viessmann.de/etc/clientlibs/viessmann/…10758916352-lc.min.css

priority - 9Leverage 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:

https://www.google-analytics.com/gtm/js?id=GTM-WGM…93.1542974804&aip=true (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-5JKBZ8 (15 minutes)
https://amplify.outbrain.com/cp/obtp.js (20 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/186060…2433?v=2.8.33&r=stable (20 minutes)
https://bat.bing.com/bat.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://cdn.inspectlet.com/inspectlet.js (4 hours)
https://cdn.taboola.com/libtrc/unip/1079574/tfa.js (4 hours)
https://cdn.taboola.com/libtrc/viessmannwerkegmbhcokg-sc/tfa.js (4 hours)
https://www.viessmann.de/de/tools/global_js_snippet_head.data.js (25.9 hours)
https://www.viessmann.de/content/dam/vi-brands/DE/…icon-gewerbe-white.png (28.8 hours)
https://www.viessmann.de/content/dam/vi-brands/DE/…rgie-Spar-Check-1s.jpg (47.5 hours)
https://www.viessmann.de/content/dam/vi-brands/DE/…essmann-logo-weiss.png (3.2 days)
https://www.viessmann.de/content/dam/vi-corporate/…ns/original./blank.png (6 days)

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 12% of the final above-the-fold content could be rendered with the full HTML response.

Click to see the screenshot with only the HTML response:

priority - 0Minify 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 665B (14% reduction).

Minifying https://www.viessmann.de/de/tools/global_js_snippet_body.data.js could save 500B (13% reduction) after compression.
Minifying https://www.viessmann.de/de/tools/global_js_snippet_head.data.js could save 165B (24% reduction) after compression.

viessmann.de Mobile Resource Breakdown

Total Resources	61
Number of Hosts	18
Static Resources	41
JavaScript Resources	19
CSS Resources	3

viessmann.de mobile page usability

Last tested: 2018-11-23

Mobile Usability Good

99/100

viessmann.de Mobile Usability Test Quick Summary

priority - 0Size 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="https://twitte…eenergiegesetz">#Gebäudeenergiegesetz</a> and 1 others are close to other tap targets.

viessmann.de HTML validation

Errors

A “charset” attribute on a “meta” element found after the first 1024 bytes.

Line: 18 Column: - 23
"... charset="UTF-8"/> <meta htt..."

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 19 Column: 3 - 65
"...TF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/> <m..."

Element “meta” is missing required attribute “content”.

Line: 49 Column: 5 - 37
"... <meta property="og:description"/> ..."

Element “img” is missing required attribute “src”.

Line: 2720 Column: 7 - 16
".../a> <img class="vi_js_responsive_image" data-resp-src='[{ "mq": "vi_asset_s", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png" },{ "mq": "vi_asset_m", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png" },{ "mq": "vi_asset_l", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png" },{ "mq": "vi_asset_xl", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook-xl.png" }]'/> <..." Line: 2760 Column: 7 - 16
".../a> <img class="vi_js_responsive_image" data-resp-src='[{ "mq": "vi_asset_s", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-twitter.png" },{ "mq": "vi_asset_m", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-twitter.png" },{ "mq": "vi_asset_l", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-twitter.png" },{ "mq": "vi_asset_xl", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-twitter-xl.png" }]'/> <..."

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

Line: 2720 Column: 7 - 16
".../a> <img class="vi_js_responsive_image" data-resp-src='[{ "mq": "vi_asset_s", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png" },{ "mq": "vi_asset_m", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png" },{ "mq": "vi_asset_l", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png" },{ "mq": "vi_asset_xl", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook-xl.png" }]'/> <..." Line: 2760 Column: 7 - 16
".../a> <img class="vi_js_responsive_image" data-resp-src='[{ "mq": "vi_asset_s", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-twitter.png" },{ "mq": "vi_asset_m", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-twitter.png" },{ "mq": "vi_asset_l", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-twitter.png" },{ "mq": "vi_asset_xl", "src": "/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-twitter-xl.png" }]'/> <..."

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Line: 21 Column: 3 - 106
"...e=1"/> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no"/> ..."

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

Line: 1735 Column: 9 - 44
"... <section class="vi_gesc vi_js_gesc"> <di..." Line: 2151 Column: 58 - 103
"... section"><section class="vi_tile_container vi_bg__gr5"> <di..." Line: 2937 Column: 3 - 42
"...ist --> <section class="vi_footer__social_list"> <..." Line: 3171 Column: 3 - 37
"...ction> <section class="vi_footer__bottom"> <..."

This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.

Line: 5 Column: 23 - 42
"...E 8]><!--><html class="no-js"><!--<!..."

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viessmann.de 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.

viessmann.de 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.

VIESSMANN.DE Klimalösungen: Effizient heizen, kühlen, lüften

viessmann.de Website Information

Advertisement

viessmann.de Alexa Rank

viessmann.de whois

viessmann.de server information

Servers Location

viessmann.de desktop page speed rank

viessmann.de Desktop Speed Test Quick Summary

priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 5Leverage 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 - 2Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 0Minify 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 665B (14% reduction).

viessmann.de Desktop Resource Breakdown

viessmann.de mobile page speed rank

viessmann.de Mobile Speed Test Quick Summary

priority - 24Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 9Leverage 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 - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 0Minify 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 665B (14% reduction).

viessmann.de Mobile Resource Breakdown

viessmann.de mobile page usability

viessmann.de Mobile Usability Test Quick Summary

priority - 0Size 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.

viessmann.de HTML validation

Errors

A “charset” attribute on a “meta” element found after the first 1024 bytes.

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Element “meta” is missing required attribute “content”.

Element “img” is missing required attribute “src”.

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

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

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

This document appears to be written in German. Consider adding “lang="de"” (or variant) to the “html” start tag.

viessmann.de similar domains

viessmann.de Ping

viessmann.de TRACEROUTE