mpl.mpg.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 4.33:1. Recommendation: change text colour to #006d7b.

Selector: #c119744 > div > div:nth-child(1) > div > div > div > div:nth-child(2) > time > h4

Kontext: <h4> ...</h4>

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 4.33:1. Recommendation: change text colour to #006d7b.

Selector: #c119744 > div > div:nth-child(2) > div > div > div > div:nth-child(2) > time > h4

Kontext: <h4> ...</h4>

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 4.33:1. Recommendation: change text colour to #006d7b.

Selector: #c119744 > div > div:nth-child(3) > div > div > div > div:nth-child(2) > time > h4

Kontext: <h4> ...</h4>

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

Selector: #menu > li:nth-child(6) > button > img

Kontext: <img height="30px" src="/_assets/fe1c50b9b00e796125abc1438955cd26/img/lupe.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: #wrapper > div > div:nth-child(3) > div > div:nth-child(2) > form

Kontext: <form> <div class="cookie...</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: #news-container-119738 > div:nth-child(1) > div > div > div:nth-child(1) > div > a

Kontext: <a title="Max Planck Institute for the Science of Light honored as DPG Quantum Location" href="/news/article/max-planck-institute-for-the-science-of-light-honored-as-dpg-quantum...

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: #news-container-119738 > div:nth-child(2) > div > div > div:nth-child(1) > div > a

Kontext: <a title="New insights into optical switching processes through extremely rapid light-matter interactions" href="/news/article/new-insights-into-optical-switching-processes-thro...

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: #news-container-119738 > div:nth-child(3) > div > div > div:nth-child(1) > div > a

Kontext: <a title="International experts evaluate research at MPL" href="/news/article/international-experts-evaluate-research-at-mpl"> ...</a>

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: #c119744 > div > div:nth-child(1) > div > div > div > div:nth-child(1) > a

Kontext: <a href="/events/event/scott-diddams"> ...</a>

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: #c119744 > div > div:nth-child(2) > div > div > div > div:nth-child(1) > a

Kontext: <a href="/events/event/girlsday-2026"> ...</a>

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: #c119744 > div > div:nth-child(3) > div > div > div > div:nth-child(1) > a

Kontext: <a href="/events/event/symposium-celebrating-the-75th-birthday-of-professor-gerd-leuchs"> ...</a>

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: #c104585 > div > div:nth-child(2) > a

Kontext: <a href="https://mpzpm.mpg.de/" target="_blank" class="external"> ...</a>

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: #c104585 > div > div:nth-child(3) > a

Kontext: <a href="https://mpl.mpg.de/study-work-or-visit/graduate-programs/welcome" class="external"> ...</a>

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: #c104585 > div > div:nth-child(4) > a

Kontext: <a href="https://mpl.mpg.de/study-work-or-visit/graduate-programs/welcome" class="external"> ...</a>

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: #c104585 > div > div:nth-child(5) > a

Kontext: <a href="https://www.maxplanckschools.de/de/photonics" target="_blank" class="external"> ...</a>

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: #c104585 > div > div:nth-child(6) > a

Kontext: <a href="https://www.uottawa.ca/research-innovation/max-planck-centre" target="_blank" class="external"> ...</a>

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

Selector: #scrollToTop > a

Kontext: <a href="#" class="scrollToTop"></a>

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

Selector: #tx-indexedsearch-searchbox-sword-mini

Kontext: <input placeholder="Search..." class="form-control tx-indexedsearch-searchbox-sword" id="tx-indexedsearch-searchbox-sword-mini" type="text" name="tx_indexedsearch_pi2[search][sw...

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: #tx-indexedsearch-searchbox-sword-mini

Kontext: <input placeholder="Search..." class="form-control tx-indexedsearch-searchbox-sword" id="tx-indexedsearch-searchbox-sword-mini" type="text" name="tx_indexedsearch_pi2[search][sw...

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

Selector: #tx-indexedsearch-searchbox-button-submit

Kontext: <button class="btn btn-default tx-indexedsearch-searchbox-button" id="tx-indexedsearch-searchbox-button-submit" type="submit" name="tx_indexedsearch_pi2[search][submitButton]" v...

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

Selector: #Mobilesidenav > div:nth-child(1) > button

Kontext: <button type="button" class="hamburger is-open animated fadeInLeft" data-toggle="offcanvas"> <span class="hamb-...</button>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #accordion > li:nth-child(1) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" data-parent="#accordion" aria-expanded="true" aria-controls="#collapse11" class="" href="#collapse11"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse11 > li:nth-child(1) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7829" class="" href="#collapse7829"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse11 > li:nth-child(2) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7984" class="" href="#collapse7984"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #accordion > li:nth-child(2) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" data-parent="#accordion" aria-expanded="true" aria-controls="#collapse19" class="" href="#collapse19"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse19 > li:nth-child(1) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7690" class="" href="#collapse7690"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse19 > li:nth-child(2) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7768" class="" href="#collapse7768"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse19 > li:nth-child(3) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7443" class="" href="#collapse7443"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse19 > li:nth-child(4) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse21" class="" href="#collapse21"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse19 > li:nth-child(5) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7629" class="" href="#collapse7629"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse19 > li:nth-child(6) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse18" class="" href="#collapse18"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse19 > li:nth-child(7) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse8006" class="" href="#collapse8006"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #accordion > li:nth-child(3) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" data-parent="#accordion" aria-expanded="true" aria-controls="#collapse17" class="" href="#collapse17"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse17 > li:nth-child(1) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse132" class="" href="#collapse132"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse17 > li:nth-child(2) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7871" class="" href="#collapse7871"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #accordion > li:nth-child(4) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" data-parent="#accordion" aria-expanded="true" aria-controls="#collapse30" class="" href="#collapse30"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse30 > li:nth-child(1) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7911" class="" href="#collapse7911"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse30 > li:nth-child(3) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7788" class="" href="#collapse7788"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #accordion > li:nth-child(5) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" data-parent="#accordion" aria-expanded="true" aria-controls="#collapse37" class="" href="#collapse37"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse37 > li:nth-child(1) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse7082" class="" href="#collapse7082"><i class="menutoggler fa fa-che...</a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #collapse37 > li:nth-child(4) > a:nth-child(2)

Kontext: <a role="button" data-toggle="collapse" aria-expanded="false" aria-controls="#collapse40" class="" href="#collapse40"><i class="menutoggler fa fa-che...</a>

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

Selector: #header > div > div > div:nth-child(2) > button

Kontext: <button class="hamburger is-closed animated fadeInLeft pull-right" data-toggle="offcanvas" type="button"> <span ...</button>

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

Selector: #tx-indexedsearch-searchbox-sword-mini

Kontext: <input placeholder="Search..." class="form-control tx-indexedsearch-searchbox-sword" id="tx-indexedsearch-searchbox-sword-mini" type="text" name="tx_indexedsearch_pi2[search][sw...

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: #tx-indexedsearch-searchbox-sword-mini

Kontext: <input placeholder="Search..." class="form-control tx-indexedsearch-searchbox-sword" id="tx-indexedsearch-searchbox-sword-mini" type="text" name="tx_indexedsearch_pi2[search][sw...

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

Selector: #tx-indexedsearch-searchbox-button-submit

Kontext: <button class="btn btn-default tx-indexedsearch-searchbox-button" id="tx-indexedsearch-searchbox-button-submit" type="submit" name="tx_indexedsearch_pi2[search][submitButton]" v...

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

Selector: #menu > li:nth-child(6) > button

Kontext: <button class="searchbtn" type="button"><img height="30px" src="/_asset...</button>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #lightbox > div:nth-child(1) > div > div:nth-child(3) > a

Kontext: <a class="lb-cancel" role="button" tabindex="0"></a>

Originalmeldung: This element has role of "button" but does not have a name available to an accessibility API. Valid names are: element content, aria-label , aria-labelledby .

Selector: #lightbox > div:nth-child(2) > div > div:nth-child(2) > a

Kontext: <a class="lb-close" role="button" tabindex="0"></a>

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

Selector: #tx_indexedsearch_mini

Kontext: <form method="post" class="main-search" id="tx_indexedsearch_mini" action="/search?tx_indexedsearch_pi2%5Baction%5D=search&amp;tx_indexedsearch_pi2%5Bcontroller%5D=Search&amp;cH...

Originalmeldung: Duplicate id attribute value "tx-indexedsearch-searchbox-sword-mini" found on the web page.

Selector: #tx-indexedsearch-searchbox-sword-mini

Kontext: <input placeholder="Search..." class="form-control tx-indexedsearch-searchbox-sword" id="tx-indexedsearch-searchbox-sword-mini" type="text" name="tx_indexedsearch_pi2[search][sw...

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

Selector: #newsletterbutton

Kontext: <a class="btn btn-xs" id="newsletterbutton" href="/newsletter"><i class="fa fa-envelope" aria-...</a>

Originalmeldung: Duplicate id attribute value "tx-indexedsearch-searchbox-button-submit" found on the web page.

Selector: #tx-indexedsearch-searchbox-button-submit

Kontext: <button class="btn btn-default tx-indexedsearch-searchbox-button" id="tx-indexedsearch-searchbox-button-submit" type="submit" name="tx_indexedsearch_pi2[search][submitButton]" v...

Originalmeldung: Duplicate id attribute value "c119704" found on the web page.

Selector: #c119704

Kontext: <div id="c119704"> <div class="styl...</div>

Originalmeldung: Duplicate id attribute value "c119706" found on the web page.

Selector: #c119706

Kontext: <div id="c119706"> <div class="wrap...</div>

Originalmeldung: Duplicate id attribute value "c119708" found on the web page.

Selector: #c119708

Kontext: <div id="c119708"> <div class="bord...</div>

Originalmeldung: Duplicate id attribute value "c119710" found on the web page.

Selector: #c119710

Kontext: <div id="c119710"> <div class="bord...</div>

Originalmeldung: Duplicate id attribute value "c119712" found on the web page.

Selector: #c119712

Kontext: <div id="c119712"> <div class="bord...</div>

Originalmeldung: Duplicate id attribute value "c119714" found on the web page.

Selector: #c119714

Kontext: <div id="c119714"> <div class="bord...</div>

Originalmeldung: Duplicate id attribute value "c119718" found on the web page.

Selector: #c119718

Kontext: <div id="c119718"> <div class="bord...</div>

Originalmeldung: Duplicate id attribute value "c119716" found on the web page.

Selector: #c119716

Kontext: <div id="c119716"> <div class="bord...</div>

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

Selector: #c119716 > div > a > h3

Kontext: <h3></h3>

Originalmeldung: Duplicate id attribute value "c119722" found on the web page.

Selector: #c119722

Kontext: <div id="c119722"> <div class="styl...</div>

Originalmeldung: Duplicate id attribute value "c119728" found on the web page.

Selector: #c119728

Kontext: <div id="c119728"> <div class="styl...</div>

Originalmeldung: Duplicate id attribute value "c119730" found on the web page.

Selector: #c119730

Kontext: <div id="c119730"> <div class="row"> ...</div>

Originalmeldung: Duplicate id attribute value "c119734" found on the web page.

Selector: #c119734

Kontext: <div id="c119734"> ...</div>

Originalmeldung: Duplicate id attribute value "c1054" found on the web page.

Selector: #c1054

Kontext: <div id="c1054"> <div class="styl...</div>