VIESSMANN-US.COM Viessmann - Heating Systems, Industrial Systems, Refrigeration Systems

viessmann-us.com Website Information

Daily Unique Visits: 1,387

Daily Page Views: 2,774

Income Per Day: $9

Estimated Value: $2,160

This website is located in Germany and is using following IP address 93.122.86.52. See the complete list of popular websites hosted in Germany.

viessmann-us.com is registered under .COM top-level domain. Please check other sites in .COM zone.

Website viessmann-us.com is using the following name servers:

  • auth04.ns.de.uu.net
  • auth54.ns.de.uu.net
  • auth40.ns.uu.net
  • auth20.ns.wcom.com

and is probably hosted by T-Systems International GmbH. See the full list of other websites hosted by T-Systems International GmbH.

The highest website viessmann-us.com position in Alexa rank database was 28988 and the lowest rank position was 998529. Current position of viessmann-us.com in Alexa rank database is 517078.

Desktop speed score of viessmann-us.com (81/100) is better than the results of 71.91% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of viessmann-us.com (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.

Mobile speed score of viessmann-us.com (76/100) is better than the results of 85.22% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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viessmann-us.com 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.


viessmann-us.com 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 Name: VIESSMANN-US.COM
Registry Domain ID: 26434284_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.rrpproxy.net
Registrar URL: http://www.key-systems.net
Updated Date: 2021-07-05T10:04:09Z
Creation Date: 2000-05-05T16:43:58Z
Registry Expiry Date: 2023-05-05T16:43:58Z
Registrar: Key-Systems GmbH
Registrar IANA ID: 269
Registrar Abuse Contact Email: abuse@key-systems.net
Registrar Abuse Contact Phone: +49.68949396850
Domain Status: ok https://icann.org/epp#ok
Name Server: AUTH04.NS.DE.UU.NET
Name Server: AUTH54.NS.DE.UU.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-01-01T07:50:33Z

viessmann-us.com server information

Servers Location

viessmann-us.com desktop page speed rank

Last tested: 2019-09-03


Desktop Speed Medium
81/100

viessmann-us.com 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-us.com/etc/clientlibs/viessm…510758916352-lc.min.js

Optimize CSS Delivery of the following:

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

priority - 4Leverage 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.googletagmanager.com/gtm.js?id=GTM-MT2Q229 (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/332568…01878?v=2.9.4&r=stable (20 minutes)
https://connect.facebook.net/signals/plugins/inferredEvents.js?v=2.9.4 (20 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.viessmann-us.com/en.country-suggestion-box-info.json (6 hours)
https://www.viessmann-us.com/content/dam/vi-brands…tile_rewards_card4.jpg (30.7 hours)
https://www.viessmann-us.com/etc/clientlibs/viessm…510758116352-lc.min.js (30.8 hours)
https://www.viessmann-us.com/content/dam/vi-corpor…ns/original./blank.png (46.9 hours)
https://www.viessmann-us.com/content/dam/vi-brands…al./Featured-Video.png (6.3 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 14% 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 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 1.3KiB (13% reduction).

Minifying https://www.viessmann-us.com/ could save 1.3KiB (13% reduction) after compression.

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 887B (46% reduction).

Minifying https://connect.facebook.net/signals/plugins/inferredEvents.js?v=2.9.4 could save 646B (85% reduction) after compression.
Minifying https://www.viessmann-us.com/en/tools/global_js_snippet_body.data.js could save 133B (19% reduction) after compression.
Minifying https://www.viessmann-us.com/en/tools/global_js_snippet_head.data.js could save 108B (23% reduction) after compression.

priority - 0Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 159B (37% reduction).

Compressing https://www.viessmann-us.com/en.country-suggestion-box-info.json could save 159B (37% reduction).

viessmann-us.com Desktop Resource Breakdown

Total Resources51
Number of Hosts12
Static Resources37
JavaScript Resources18
CSS Resources3

viessmann-us.com mobile page speed rank

Last tested: 2019-09-03


Mobile Speed Medium
76/100

viessmann-us.com Mobile Speed Test Quick Summary


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

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

Optimize CSS Delivery of the following:

https://www.viessmann-us.com/etc/clientlibs/viessm…10758916352-lc.min.css

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.googletagmanager.com/gtm.js?id=GTM-MT2Q229 (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/332568…01878?v=2.9.4&r=stable (20 minutes)
https://connect.facebook.net/signals/plugins/inferredEvents.js?v=2.9.4 (20 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.viessmann-us.com/en.country-suggestion-box-info.json (6 hours)
https://www.viessmann-us.com/content/dam/vi-brands…tile_rewards_card4.jpg (26.5 hours)
https://www.viessmann-us.com/content/dam/vi-brands…al./Featured-Video.png (5.8 days)

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 1.3KiB (13% reduction).

Minifying https://www.viessmann-us.com/ could save 1.3KiB (13% reduction) after compression.

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 887B (46% reduction).

Minifying https://connect.facebook.net/signals/plugins/inferredEvents.js?v=2.9.4 could save 646B (85% reduction) after compression.
Minifying https://www.viessmann-us.com/en/tools/global_js_snippet_body.data.js could save 133B (19% reduction) after compression.
Minifying https://www.viessmann-us.com/en/tools/global_js_snippet_head.data.js could save 108B (23% reduction) after compression.

priority - 0Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 159B (37% reduction).

Compressing https://www.viessmann-us.com/en.country-suggestion-box-info.json could save 159B (37% reduction).

viessmann-us.com Mobile Resource Breakdown

Total Resources50
Number of Hosts12
Static Resources36
JavaScript Resources18
CSS Resources3

viessmann-us.com mobile page usability

Last tested: 2019-09-03


Mobile Usability Good
100/100

viessmann-us.com 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: 2414 Column: 7 - 16
".../a> <img class="vi_js_responsive_image" data-resp-src='[{ &quot;mq&quot;: &quot;vi_asset_s&quot;, &quot;src&quot;: &quot;/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png&quot; },{ &quot;mq&quot;: &quot;vi_asset_m&quot;, &quot;src&quot;: &quot;/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png&quot; },{ &quot;mq&quot;: &quot;vi_asset_l&quot;, &quot;src&quot;: &quot;/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png&quot; },{ &quot;mq&quot;: &quot;vi_asset_xl&quot;, &quot;src&quot;: &quot;/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook-xl.png&quot; }]'/> <..."

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

Line: 2414 Column: 7 - 16
".../a> <img class="vi_js_responsive_image" data-resp-src='[{ &quot;mq&quot;: &quot;vi_asset_s&quot;, &quot;src&quot;: &quot;/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png&quot; },{ &quot;mq&quot;: &quot;vi_asset_m&quot;, &quot;src&quot;: &quot;/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png&quot; },{ &quot;mq&quot;: &quot;vi_asset_l&quot;, &quot;src&quot;: &quot;/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook.png&quot; },{ &quot;mq&quot;: &quot;vi_asset_xl&quot;, &quot;src&quot;: &quot;/etc/clientlibs/viessmann/viessmann.base.app/resources/img/icon-kachel-facebook-xl.png&quot; }]'/> <..." Line: 2617 Column: 9 - 151
"...> <img src="//www.viessmann-us.com/etc/clientlibs/viessmann/viessmann.base.app/resources/img/viessmann_logo_footer.png" width="100" height="22"/> ..."

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: 1812 Column: 58 - 103
"... section"><section class="vi_tile_container vi_bg__gr5"> <di..." Line: 2585 Column: 3 - 42
"...ist --> <section class="vi_footer__social_list"> <..." Line: 2755 Column: 3 - 37
"...ction> <section class="vi_footer__bottom"> <..."

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

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

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viessmann-us.com Ping

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viessmann-us.com TRACEROUTE

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