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.
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
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:
Optimize CSS Delivery of the following:
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://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.
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).
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://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).
viessmann-us.com Desktop Resource Breakdown
Total Resources | 51 |
Number of Hosts | 12 |
Static Resources | 37 |
JavaScript Resources | 18 |
CSS Resources | 3 |
viessmann-us.com mobile page speed rank
Last tested: 2019-09-03
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:
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://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).
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://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).
viessmann-us.com Mobile Resource Breakdown
Total Resources | 50 |
Number of Hosts | 12 |
Static Resources | 36 |
JavaScript Resources | 18 |
CSS Resources | 3 |
viessmann-us.com mobile page usability
Last tested: 2019-09-03
viessmann-us.com HTML validation
Errors
A “charset” attribute on a “meta” element found after the first 1024 bytes.
"... 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”.
"...TF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/> <m..."
Element “meta” is missing required attribute “content”.
"... <meta property="og:description"/> ..."
Element “img” is missing required attribute “src”.
".../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" }]'/> <..."
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
".../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: 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.
"...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.
"... 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.
"...E 8]><!--><html class="no-js"><!--<!..."
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viessmann-us.com 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-us.com 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.