koester-bau.de

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 3.6:1. Recommendation: change text colour to #0b0b0b.

Selector: html > body > div:nth-child(3) > div:nth-child(2) > div > ol > li

Kontext: <li class="breadcrumb-item active"> Köster GmbH </li>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.17:1. Recommendation: change background to #f5f6f1.

Selector: html > body > div:nth-child(3) > div:nth-child(3) > div:nth-child(1) > div:nth-child(2) > div > div:nth-child(1) > div > div > p > a

Kontext: <a href="/unternehmen/unsere-art-zu-bauen.html">Art zu Bauen</a>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.17:1. Recommendation: change background to #f5f6f1.

Selector: html > body > div:nth-child(3) > div:nth-child(3) > div:nth-child(2) > div:nth-child(2) > div > div:nth-child(1) > div:nth-child(1) > a > picture > noscript

Kontext: <noscript><img class="img-fluid lazy" sty...</noscript>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.17:1. Recommendation: change background to #f5f6f1.

Selector: html > body > div:nth-child(3) > div:nth-child(3) > div:nth-child(2) > div:nth-child(2) > div > div:nth-child(2) > div:nth-child(1) > a > picture > noscript

Kontext: <noscript><img class="img-fluid lazy" sty...</noscript>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.17:1. Recommendation: change background to #f5f6f1.

Selector: html > body > div:nth-child(3) > div:nth-child(3) > div:nth-child(2) > div:nth-child(2) > div > div:nth-child(3) > div:nth-child(1) > a > picture > noscript

Kontext: <noscript><img class="img-fluid lazy" sty...</noscript>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.17:1. Recommendation: change background to #f5f6f1.

Selector: html > body > div:nth-child(3) > div:nth-child(3) > div:nth-child(3) > div:nth-child(2) > div > div:nth-child(1) > span:nth-child(1) > h3

Kontext: <h3 class="text-left h3">Wie wir die Baubranche bewegen</h3>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.23:1. Recommendation: change text colour to #767676.

Selector: #teaserbox__slider-a42e9e09-fcc6-4fbf-8984-2c62e50691e6 > div:nth-child(3) > div:nth-child(1) > div > div:nth-child(2) > div:nth-child(1) > p

Kontext: <p class="teaserbox-header__date">2. April 2026</p>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.23:1. Recommendation: change text colour to #767676.

Selector: #teaserbox__slider-a42e9e09-fcc6-4fbf-8984-2c62e50691e6 > div:nth-child(3) > div:nth-child(2) > div > div:nth-child(2) > div:nth-child(1) > p

Kontext: <p class="teaserbox-header__date">28. März 2026</p>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.23:1. Recommendation: change text colour to #767676.

Selector: #teaserbox__slider-a42e9e09-fcc6-4fbf-8984-2c62e50691e6 > div:nth-child(3) > div:nth-child(3) > div > div:nth-child(2) > div:nth-child(1) > p

Kontext: <p class="teaserbox-header__date">23. März 2026</p>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.23:1. Recommendation: change text colour to #767676.

Selector: #teaserbox__slider-a42e9e09-fcc6-4fbf-8984-2c62e50691e6 > div:nth-child(3) > div:nth-child(4) > div > div:nth-child(2) > div:nth-child(1) > p

Kontext: <p class="teaserbox-header__date">18. März 2026</p>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.23:1. Recommendation: change text colour to #767676.

Selector: #teaserbox__slider-a42e9e09-fcc6-4fbf-8984-2c62e50691e6 > div:nth-child(3) > div:nth-child(5) > div > div:nth-child(2) > div:nth-child(1) > p

Kontext: <p class="teaserbox-header__date">17. März 2026</p>

Originalmeldung: This element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.23:1. Recommendation: change text colour to #767676.

Selector: #teaserbox__slider-a42e9e09-fcc6-4fbf-8984-2c62e50691e6 > div:nth-child(3) > div:nth-child(6) > div > div:nth-child(2) > div:nth-child(1) > p

Kontext: <p class="teaserbox-header__date">13. März 2026</p>

Originalmeldung: This form does not contain a submit button, which creates issues for those who cannot submit the form using the keyboard. Submit buttons are INPUT elements with type attribute "submit" or "image", or BUTTON elements with type "submit" or omitted/invalid.

Selector: html > body > div:nth-child(2) > div:nth-child(2) > div > div > div > ul:nth-child(1) > form

Kontext: <form method="post" action="/suche.html"> <li class="search"> <div ...</form>

Originalmeldung: This form does not contain a submit button, which creates issues for those who cannot submit the form using the keyboard. Submit buttons are INPUT elements with type attribute "submit" or "image", or BUTTON elements with type "submit" or omitted/invalid.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(2) > form

Kontext: <form method="post" action="/suche.html"> <li class="search"> <div ...</form>

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(1) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileOrigs%2Fjz%2FjZFHRlbThRuIrpVNsI__1745491997_H7l8E6j.jpg&amp;w=5...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(2) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileOrigs%2F6d%2F6dxeRzvvE90tibONRl__1754456077_69hTEBv.jpg&amp;w=5...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(3) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileArchiv%2F8o%2F8oQT4KDhTok8xw1a2S__1772807941_Ym7y8CT.jpg&amp;wi...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(4) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileArchiv%2F9u%2F9uRrxcPXOJDnlsKNHP__1761905109_DyJwBGK.jpg&amp;wi...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(5) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileOrigs%2Fra%2FRaou0vsBBPNETq3lkK__1750884763_L0dVjmE.jpg&amp;w=5...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(6) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileArchiv%2Fuv%2FuvjcLXmXdXURKlSIiv__1760964223_S7TrF2l.jpg&amp;wi...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(7) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileOrigs%2Fn7%2FN7XecJQ4wT5VAiUr3B__1761033299_Lw2Y5Aa.jpg&amp;w=5...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(8) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileArchiv%2Fax%2FaxpC6cRZTPMrA8nR6J__1756622599_DKV6Hv2.jpg&amp;wi...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(9) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileOrigs%2Frl%2FRLQ1qABQzoWbpHo8jy__1751183157_FmwTotp.jpg&amp;w=5...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(10) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileOrigs%2Fwb%2FwBdWEAGdaR9ie7yf45__1750317713_nspHgIJ.jpg&amp;w=5...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(11) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileOrigs%2F9i%2F9I67sgXMWjgXCfgF0H__1756575715_8PYMOs3.jpg&amp;w=5...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #teaserbox__slider-fc7e174b-dd35-4377-912c-d61ae461fa38 > div:nth-child(3) > div:nth-child(12) > div > div:nth-child(2) > div > a > picture > img

Kontext: <img class="img-fluid lazy loading" style="" data-src="https://www.koester-bau.de/gobackend/mediaserver?fp=%2FfileOrigs%2Fce%2FcehCSO5JqRKPa5c7Gt__1756567211_y1WxiHh.jpg&amp;w=5...

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #loader-4e2a3b9369c54445bd2a407dde5b9c10

Kontext: <img id="loader-4e2a3b9369c54445bd2a407dde5b9c10" class="loaderImage" src="https://www.koester-bau.de/_Resources/Static/Packages/Avency.KoesterBau.Base/Images/ajax-loader.gif">

Originalmeldung: Img element missing an alt attribute. Use the alt attribute to specify a short text alternative.

Selector: #map4e2a3b9369c54445bd2a407dde5b9c10 > img

Kontext: <img class="hidden-image-for-size" src="https://www.koester-bau.de/_Resources/Static/Packages/Avency.KoesterBau.Base/Images/map_large.png">

Originalmeldung: This form does not contain a submit button, which creates issues for those who cannot submit the form using the keyboard. Submit buttons are INPUT elements with type attribute "submit" or "image", or BUTTON elements with type "submit" or omitted/invalid.

Selector: html > body > div:nth-child(3) > div:nth-child(3) > div:nth-child(7) > div > div > div > div > div:nth-child(2) > div > div > div > div > div > form

Kontext: <form style="background-image: url(https://www.koester-bau.de/_Resources/Static/Packages/Avency.KoesterBau.Locations/Images/Map.png);"> ...</form>

Originalmeldung: Img element is the only content of the link, but is missing alt text. The alt text should describe the purpose of the link.

Selector: html > body > div:nth-child(2) > div:nth-child(1) > div > div > div:nth-child(1) > a

Kontext: <a class="navbar-brand" href="/"><img src="https://www.koester-b...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(1) > div > div > div:nth-child(2) > a

Kontext: <a href="#" class="menu-toggle"> <span ...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(1) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(1) > ul > li:nth-child(1) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(1) > ul > li:nth-child(2) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(1) > ul > li:nth-child(3) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(1) > ul > li:nth-child(4) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(2) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(4) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(6) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(6) > ul > li:nth-child(1) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(6) > ul > li:nth-child(2) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(6) > ul > li:nth-child(3) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > ul:nth-child(1) > li:nth-child(7) > a:nth-child(2)

Kontext: <a href="#" class="toggle-submenu"> <span class="a...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(2) > div:nth-child(3) > div > div > div > a

Kontext: <a href="#" class="menu-close"> <span ...</a>

Originalmeldung: Anchor element found with a valid href attribute, but no link content has been supplied.

Selector: html > body > div:nth-child(4) > div > div > div > a

Kontext: <a href="#top"> <span clas...</a>

Originalmeldung: This link points to a named anchor "top" within the document, but no anchor exists with that name.

Selector: html > body > div:nth-child(4) > div > div > div > a

Kontext: <a href="#top"> <span clas...</a>

Originalmeldung: This searchinput element does not have a name available to an accessibility API. Valid names are: label element, title , aria-label , aria-labelledby .

Selector: #search

Kontext: <input type="search" autocomplete="off" class="form-control" id="search" name="search">

Originalmeldung: This searchinput element does not have a name available to an accessibility API. Valid names are: label element, title , aria-label , aria-labelledby .

Selector: #search

Kontext: <input type="search" autocomplete="off" class="form-control" id="search" name="search">

Originalmeldung: This select element does not have a name available to an accessibility API. Valid names are: label element, title , aria-label , aria-labelledby .

Selector: html > body > div:nth-child(3) > div:nth-child(3) > div:nth-child(7) > div > div > div > div > div:nth-child(2) > div > div > div > div > div > form > div > select

Kontext: <select class="form-control xlarge" onchange="window.location.href = this.value;"> ...</select>

Originalmeldung: This form field should be labelled in some way. Use the label element (either with a "for" attribute or wrapped around the form field), or "title", "aria-label" or "aria-labelledby" attributes as appropriate.

Selector: html > body > div:nth-child(3) > div:nth-child(3) > div:nth-child(7) > div > div > div > div > div:nth-child(2) > div > div > div > div > div > form > div > select

Kontext: <select class="form-control xlarge" onchange="window.location.href = this.value;"> ...</select>

Originalmeldung: Duplicate id attribute value "search" found on the web page.

Selector: #search

Kontext: <input type="search" autocomplete="off" class="form-control" id="search" name="search">

Originalmeldung: Heading tag found with no content. Text that is not intended as a heading should not be marked up with heading tags.

Selector: #sliderItem_41cee652-8129-4dd6-ad35-b959af22c7f2 > div:nth-child(2) > div > div > div > h1

Kontext: <h1 class="sliderBox__title"></h1>

Originalmeldung: The html element should have a lang or xml:lang attribute which describes the language of the document.

Selector: html

Kontext: <html class="no-js"><!-- Idee & Realisierung: ...</html>