dus.com Website Information
Daily Unique Visits: 48,277
Daily Page Views: 289,662
Income Per Day: $579
Estimated Value: $416,880
This website is located in United Kingdom and is using following IP address 62.80.100.68. See the complete list of popular websites hosted in United Kingdom.
dus.com is registered under .COM top-level domain. Please check other sites in .COM zone.
Website dus.com is using the following name servers:
- secondary006.dtag.net
- pns.dtag.de
and is probably hosted by euNetworks Managed Services GmbH. See the full list of other websites hosted by euNetworks Managed Services GmbH.
The highest website dus.com position in Alexa rank database was 2806 and the lowest rank position was 884809. Current position of dus.com in Alexa rank database is 29708.
Desktop speed score of dus.com (26/100) is better than the results of 6.47% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of dus.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 dus.com (24/100) is better than the results of 6.28% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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dus.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.
dus.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: 5585939_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.registrar.telekom.de
Registrar URL: http://www.registrar.telekom.de
Updated Date: 2024-08-07T07:01:31Z
Creation Date: 1998-08-07T04:00:00Z
Registry Expiry Date: 2025-08-06T04:00:00Z
Registrar: Deutsche Telekom AG
Registrar IANA ID: 226
Registrar Abuse Contact Email: sece.leitstellenservice@telekom.de
Registrar Abuse Contact Phone: +491805212095
Domain Status: ok https://icann.org/epp#ok
Name Server: PNS.DTAG.DE
Name Server: SECONDARY006.DTAG.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-12T04:38:38Z
dus.com server information
Servers Location
dus.com desktop page speed rank
Last tested: 2017-05-19
dus.com Desktop Speed Test Quick Summary
priority - 119Optimize images
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priority - 68Enable compression
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priority - 34Minify 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 331.2KiB (60% reduction).
Minifying https://www.dus.com/de-de/404 could save 152.8KiB (64% reduction).
priority - 33Leverage 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:
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https://www.dus.com/static/css/font-awesome.css (expiration not specified)
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priority - 10Avoid landing page redirects
Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
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https://www.dus.com/
https://www.dus.com/de-de
priority - 4Prioritize 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.
156.8KiB of the HTML response was required to render the above-the-fold content. This requires 4 network round-trips. However, if the HTML response were compressed, then the HTML required to render the above-the-fold content could be delivered in just 2 network round-trips. Enable compression for the HTML response in order to prioritize the visible content for this page.
priority - 3Minify 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 32.7KiB (35% reduction).
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priority - 3Minify 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 31.5KiB (36% reduction).
priority - 2Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 7 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.dus.com/static/js/libs.infbox.map.js
https://static.etracker.com/code/e.js
https://www.dus.com/static/js/libs.js
https://www.dus.com/static/js/modernizr-2.6.2.min.js
https://cdn.stroeerdigitalmedia.de/praeludium/praeludium_dus.min.js
https://www.dus.com/WebResource.axd?d=HZLMjpGEifGV…1&t=636160876665894255
Optimize CSS Delivery of the following:
https://www.dus.com/static/css/screen.css
https://www.dus.com/static/css/lightbox.css
https://www.dus.com/static/css/jquery.smartbanner.css
https://www.dus.com/static/js/video-js-5.14.1/video-js.min.css
dus.com Desktop Resource Breakdown
Total Resources | 220 |
Number of Hosts | 54 |
Static Resources | 91 |
JavaScript Resources | 78 |
CSS Resources | 7 |
dus.com mobile page speed rank
Last tested: 2017-05-19
dus.com Mobile Speed Test Quick Summary
priority - 118Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1.1MiB (73% reduction).
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priority - 54Enable 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 522.7KiB (88% reduction).
Compressing https://www.dus.com/de-de/404 could save 215.3KiB (90% reduction).
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Compressing https://siteimproveanalytics.com/js/siteanalyze_78192.js could save 7.1KiB (61% reduction).
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priority - 35Avoid landing page redirects
Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://www.dus.com/
https://www.dus.com/
https://www.dus.com/de-de
priority - 34Minify 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 331.2KiB (60% reduction).
Minifying https://www.dus.com/de-de/404 could save 152.8KiB (64% reduction).
priority - 33Leverage 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:
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https://www.dus.com/static/css/lightbox.css (expiration not specified)
https://www.dus.com/static/css/print.css (expiration not specified)
https://www.dus.com/static/css/screen.css (expiration not specified)
https://www.dus.com/static/images/app-Icon.jpg (expiration not specified)
https://www.dus.com/static/images/light/close.png (expiration not specified)
https://www.dus.com/static/images/light/loading.gif (expiration not specified)
https://www.dus.com/static/images/light/next.png (expiration not specified)
https://www.dus.com/static/images/light/prev.png (expiration not specified)
https://www.dus.com/static/images/media/newsletter-button.png (expiration not specified)
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https://www.dus.com/static/images/no-repeat/stoerer_btn_blue.png (expiration not specified)
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https://www.dus.com/static/js/ad-mobile-interstitial.js (expiration not specified)
https://www.dus.com/static/js/custom-tracking.js (expiration not specified)
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https://www.dus.com/static/js/ecx.js (expiration not specified)
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https://www.dus.com/static/js/libs.infbox.map.js (expiration not specified)
https://www.dus.com/static/js/libs.js (expiration not specified)
https://www.dus.com/static/js/libs/LiveRail.AdMana…ayer-5.4.6.1.plugin.js (expiration not specified)
https://www.dus.com/static/js/libs/flowplayer.comm…al-5.5.0/flowplayer.js (expiration not specified)
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https://www.dus.com/static/js/selflearningsearch.js (expiration not specified)
https://www.dus.com/static/js/ua-parser.min.js (expiration not specified)
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https://maps.google.com/maps/api/js?sensor=true&language=de (30 minutes)
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https://js.adscale.de/match.js (60 minutes)
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priority - 16Prioritize 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.
213.9KiB of the HTML response was required to render the above-the-fold content. This requires 4 network round-trips. However, if the HTML response were compressed, then the HTML required to render the above-the-fold content could be delivered in just 2 network round-trips. Enable compression for the HTML response in order to prioritize the visible content for this page.
priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 9 blocking script resources and 5 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.dus.com/static/js/libs.infbox.map.js
https://static.etracker.com/code/e.js
https://www.dus.com/static/js/libs.js
https://www.dus.com/static/js/modernizr-2.6.2.min.js
https://cdn.stroeerdigitalmedia.de/praeludium/praeludium_dus.min.js
https://www.dus.com/static/js/ad-mobile-banner.js
https://www.dus.com/static/js/ad-mobile-interstitial.js
https://www.dus.com/WebResource.axd?d=HZLMjpGEifGV…1&t=636160876665894255
Optimize CSS Delivery of the following:
https://www.dus.com/static/css/screen.css
https://www.dus.com/static/css/lightbox.css
https://www.dus.com/static/css/jquery.smartbanner.css
https://www.dus.com/static/js/video-js-5.14.1/video-js.min.css
priority - 3Minify 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 32.7KiB (35% reduction).
Minifying https://www.dus.com/static/js/libs/flowplayer.comm…al-5.5.0/flowplayer.js could save 5.8KiB (27% reduction) after compression.
Minifying https://www.dus.com/static/js/flightplan.js could save 5.8KiB (45% reduction) after compression.
Minifying https://www.dus.com/static/js/custom.js could save 4.5KiB (40% reduction) after compression.
Minifying https://www.dus.com/static/js/jquery.smartbanner.js could save 2.7KiB (49% reduction) after compression.
Minifying https://www.dus.com/static/js/libs/socialsharepriv….socialshareprivacy.js could save 2.6KiB (46% reduction) after compression.
Minifying https://www.dus.com/static/js/libs/lightbox2-master/lightbox.js could save 2.1KiB (42% reduction) after compression.
Minifying https://www.dus.com/static/js/selflearningsearch.js could save 1.1KiB (49% reduction).
Minifying https://script.ioam.de/iam.js could save 715B (12% reduction) after compression.
Minifying https://www.dus.com/static/js/ecx.js could save 623B (26% reduction) after compression.
priority - 3Minify 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 31.5KiB (36% reduction).
dus.com Mobile Resource Breakdown
Total Resources | 154 |
Number of Hosts | 45 |
Static Resources | 69 |
JavaScript Resources | 61 |
CSS Resources | 7 |
dus.com mobile page usability
Last tested: 2017-05-19
dus.com HTML validation
Errors
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
"...="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta..."
Stray end tag “meta”.
"...04862037"></meta> <meta..." Line: 51 Column: 88 - 94
"....Airport"></meta> <..."
Bad value for attribute “href” on element “link”: Illegal character in query: space is not allowed.
"...ript> <link rel="stylesheet" media="all" href="//www.etracker.de/cnt_css.php?et=dCm5hb &v=4.0&java=n& et_easy=0&et_pagename=__INDEX__[DE] Düsseldorf Airport/Home -A64FC2A3CF6C44ABB37580FD2BA57935-&et_areas=DUS/[DE]/Home&et_ilevel=1&et_target=,0,0,0&et_lpage=0&et_trig=0&et_se=0&et_cust=0&et_basket=&et_url=http://www.dus.com:1443/de-de&et_tag=&et_sub=&et_organisation=&et_demographic=" /> </nos..."
Bad value “true” for attribute “async” on element “script”.
"...g --> <script type="text/javascript" src="//tag.md-nx.com/nx/76b06994-abd3-4fb1-96bc-1e6594818b56/loader.js" async="true"></scri..."
Element “title” not allowed as child of element “head” in this context. (Suppressing further errors from this subtree.)
"...g --> <title> </ti..."
Element “title” must not be empty.
"... <title> </title></head..."
Forbidden code point U+0081.
"...Å£aqat al MaÅ£Är","originCoor..." Line: 3231 Column: - 241
"...ame":"AÅ£ Å¢uwÄr","originCoor..." Line: 3231 Column: - 3636
"...{"name":"MuḩÄfaz̧at al Baá..."
Element “p” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
"... <p class="validation nodestination">Bitte ..." Line: 4187 Column: 13 - 43
"... <p class="validation nofromto">Bitte ..." Line: 4974 Column: 13 - 48
"... <p class="validation nodestination">Bitte ..." Line: 4975 Column: 13 - 43
"... <p class="validation nofromto">Bitte ..."
Bad value “park” for attribute “role” on element “div”.
".../div> <div id="flight-finder-mobile-div" class="widget park" role="park"> ..." Line: 4979 Column: 5 - 64
".../div> <div id="flight-finder-div" class="widget park" role="park"> ..." Line: 5090 Column: 9 - 45
"...> <div class="widget park" role="park"> ..."
Bad value “” for attribute “name” on element “input”: Must not be empty.
"... <input type="checkbox" id="flightmap_check_rueckflugMobile" class="ui-checkbox" checked="checked" value="" name=""> ..." Line: 4448 Column: 13 - 177
"... <input id="PromotionKeyMobileToolbox" type="text" name="" value="" title="" size="4" maxlength="20" placeholder="00000000000000000000" class="ui-input voucherinput"> ..." Line: 5162 Column: 21 - 186
"... <input id="PromotionKeyTextBoxToolbox" type="text" name="" value="" title="" size="4" maxlength="20" placeholder="00000000000000000000" class="ui-input voucherinput"> ..."
Element “style” not allowed as child of element “section” in this context. (Suppressing further errors from this subtree.)
"... <style> #..."
Bad value “/~/media/fdg/dus_com/reisende/bilder_startseite/buehne/airlines und ziele/easyjet-london_home_970x465.jpg?h=465&la=de-DE&w=970” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
"... <img src="/~/media/fdg/dus_com/reisende/bilder_startseite/buehne/airlines und ziele/easyjet-london_home_970x465.jpg?h=465&la=de-DE&w=970" alt="London Tower Bridge" width="970" height="465" /> ..."
Duplicate ID “tabs-1”.
"...l> <section id="tabs-1" class="widget-content widget-fly-content widgetDetail hide"> <..."
Duplicate ID “subtabs-1”.
"...> <div id="subtabs-1" class="scrollbar-inner"> ..."
Duplicate ID “subtabs-2”.
"...> <div id="subtabs-2" class="scrollbar-inner"> ..."
Duplicate ID “ddlReasonForTravelRepeater”.
"... <select name="phtoolbox_0$ctl03$ddlReasonForTravelRepeater" id="ddlReasonForTravelRepeater" class="selectboxit"> <opt..."
Bad value “/~/media/fdg/dus_com/reisende/bilder_startseite/halbe teaser/shops_305x180.jpg?h=180&la=de-DE&w=305” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
"... <img src="/~/media/fdg/dus_com/reisende/bilder_startseite/halbe teaser/shops_305x180.jpg?h=180&la=de-DE&w=305" alt="Kleider auf Kleiderständer" width="305" height="180" /> ..."
Bad value “/~/media/fdg/dus_com/reisende/bilder_startseite/halbe teaser/flugbuchung2_305x180.jpg?h=180&la=de-DE&w=305” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
"... <img src="/~/media/fdg/dus_com/reisende/bilder_startseite/halbe teaser/flugbuchung2_305x180.jpg?h=180&la=de-DE&w=305" alt="Santorini" width="305" height="180" /> ..."
Bad value “/~/media/fdg/dus_com/reisende/bilder_startseite/halbe teaser/restaurants1_305x180.jpg?h=180&la=de-DE&w=305” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.
"... <img src="/~/media/fdg/dus_com/reisende/bilder_startseite/halbe teaser/restaurants1_305x180.jpg?h=180&la=de-DE&w=305" alt="Himbeertörtchen" width="305" height="180" /> ..."
Element “p” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
"... <p> ..." Line: 5511 Column: 29 - 31
"... <p> ..."
The value of the “for” attribute of the “label” element must be the ID of a non-hidden form control.
"...> <label class="invisible" for="global-search"> ..." Line: 4238 Column: 17 - 67
"... <label class="invisible" for="flightmap_startziel">Abflug..." Line: 5025 Column: 17 - 67
"... <label class="invisible" for="flightmap_startziel">Abflug..."
Warnings
The “charset” attribute on the “script” element is obsolete.
"...meta> <script type="text/javascript" src="https://www.google.com/jsapi" charset="utf-8"></scri..." Line: 59 Column: 1 - 83
".../script> <script type="text/javascript" src="/static/js/libs.infbox.map.js" charset="utf-8"></scri..." Line: 85 Column: 1 - 126
"...</script> <script id="_etLoader" type="text/javascript" charset="UTF-8" data-secure-code="dCm5hb" src="//static.etracker.com/code/e.js"></scri..."
The “type” attribute is unnecessary for JavaScript resources.
"...meta> <script type="text/javascript" src="https://www.google.com/jsapi" charset="utf-8"></scri..." Line: 57 Column: 1 - 121
"...</script> <script src="https://maps.googleapis.com/maps/api/js?client=gme-flughafendusseldorf&language=de" type="text/javascript"></sc..." Line: 59 Column: 1 - 83
".../script> <script type="text/javascript" src="/static/js/libs.infbox.map.js" charset="utf-8"></scri..." Line: 64 Column: 1 - 31
"...acker --> <script type="text/javascript"> v..." Line: 85 Column: 1 - 126
"...</script> <script id="_etLoader" type="text/javascript" charset="UTF-8" data-secure-code="dCm5hb" src="//static.etracker.com/code/e.js"></scri..." Line: 97 Column: 5 - 120
"...g --> <script type="text/javascript" src="//tag.md-nx.com/nx/76b06994-abd3-4fb1-96bc-1e6594818b56/loader.js" async="true"></scri..." Line: 201 Column: 2 - 32
"...e-ad"> <script type="text/javascript"> ..." Line: 212 Column: 5 - 35
"...d"> <script type="text/javascript"> ..." Line: 229 Column: 1 - 31
"... </div> <script type="text/javascript"> //<![..." Line: 2973 Column: 1 - 31
"... <script type="text/javascript"> ..." Line: 3058 Column: 1 - 31
"... </ul> <script type="text/javascript"> f..." Line: 3159 Column: 1 - 31
"...--> <script type="text/javascript"> $..." Line: 3986 Column: 1 - 31
"... <script type="text/javascript"> $..." Line: 4274 Column: 1 - 31
"... <script type="text/javascript"> f..." Line: 4348 Column: 1 - 31
"... <script type="text/javascript"> f..." Line: 5056 Column: 1 - 31
"...n> <script type="text/javascript"> f..." Line: 5611 Column: 1 - 31
"...</div> <script type="text/javascript"> f..." Line: 5691 Column: 1 - 31
"... <script type="text/javascript"> f..." Line: 5749 Column: 1 - 31
"... <script type="text/javascript"> f..." Line: 6010 Column: 1 - 31
"...</script> <script type="text/javascript"> ..." Line: 6027 Column: 1 - 31
".../script> <script type="text/javascript"> v..." Line: 6221 Column: 5 - 35
"..." --> <script type="text/javascript"> ..." Line: 6246 Column: 1 - 104
"...ivaci --> <script type="text/javascript" src="/static/momente/js/socialshareprivacy/jquery.socialshareprivacy.js"></scri..." Line: 6248 Column: 1 - 31
".../script> <script type="text/javascript"> j..." Line: 6278 Column: 1 - 31
"... <script type="text/javascript"> //<![..."
The “banner” role is unnecessary for element “header”.
"...eader --> <header id="header" class="container" role="banner"> <..."
The “navigation” role is unnecessary for element “nav”.
"...> <nav class="grid grid-15 leftcol" role="navigation"> ..." Line: 3038 Column: 9 - 61
"...> <nav class="grid grid-85 rightcol" role="navigation"> ..." Line: 3250 Column: 5 - 61
"... <nav id="nav" class="mainnav nav-skin" role="navigation"> ..."
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
"...t --> <section class="metanav cf"> ..." Line: 3119 Column: 5 - 29
"...t --> <section class="head cf"> ..." Line: 4046 Column: 1 - 81
"... <section id="tabs-1" class="widget-content widget-fly-content widgetDetail hide"> <..." Line: 4143 Column: 5 - 69
"... <section id="tabs-mflycheck" class="widget-content widgetDetail"> ..." Line: 4182 Column: 1 - 62
"...an</span> <section id="tabs-mcheck" class="widget-content widgetDetail"> <..." Line: 4374 Column: 1 - 61
".../script> <section id="tabs-mpark" class="widget-content widgetDetail"> <..." Line: 4466 Column: 1 - 61
"... <section id="tabs-mrail" class="widget-content widgetDetail"> <..." Line: 4493 Column: 1 - 68
"... <section id="tabs-waitingtimes" class="widget-content widgetDetail"> <..." Line: 4522 Column: 5 - 67
"... <section id="tabs-luggage" class="widget-content widgetDetail"> ..." Line: 4822 Column: 1 - 81
"...l> <section id="tabs-1" class="widget-content widget-fly-content widgetDetail hide"> <..." Line: 4918 Column: 5 - 73
"... <section id="tabs-2" class="widget-content widget-plan-content hide"> ..." Line: 4964 Column: 1 - 70
"...an</span> <section id="tabs-6" class="widget-content widget-check-content hide"> <..." Line: 5082 Column: 1 - 69
".../script> <section id="tabs-4" class="widget-content widget-park-content hide"> <..." Line: 5182 Column: 1 - 69
"... <section id="tabs-5" class="widget-content widget-rail-content hide"> <..." Line: 5214 Column: 5 - 73
"... <section id="tabs-7" class="widget-content widget-plan-content hide"> ..." Line: 5258 Column: 1 - 77
"... <section id="tabs-8" class="widget-content widget-waiting-time-content hide"> <..." Line: 4008 Column: 25 - 63
"... <section class="modulbox stage-box cf"> ..." Line: 5758 Column: 5 - 34
"...</h2> <section class="grid grid-66"> ..." Line: 5909 Column: 5 - 34
"...ion> <section class="grid grid-33"> ..."
The first occurrence of ID “tabs-1” was here.
"... <section id="tabs-1" class="widget-content widget-fly-content widgetDetail hide"> <..."
The first occurrence of ID “subtabs-1” was here.
"...> <div id="subtabs-1" class="scrollbar-inner"> ..."
The first occurrence of ID “subtabs-2” was here.
"...> <div id="subtabs-2" class="scrollbar-inner"> ..."
The first occurrence of ID “ddlReasonForTravelRepeater” was here.
"... <select name="phtoolboxmobile_0$ctl04$ddlReasonForTravelRepeater" id="ddlReasonForTravelRepeater" class="selectboxit"> <opt..."
The “contentinfo” role is unnecessary for element “footer”.
"...ooter --> <footer id="footer" role="contentinfo"> <..."
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dus.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.
dus.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.