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”.
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Bad value “//fonts.googleapis.com/css?family=Roboto+Condensed:300italic,700italic,700,400,300|Roboto:400,400italic|Roboto+Slab” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.
Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Bad value “toolbox-search” for attribute “rel” on element “a”: The string “toolbox-search” is not a registered keyword.
Bad value “toolbox-contact” for attribute “rel” on element “a”: The string “toolbox-contact” is not a registered keyword.
Bad value “toolbox-live” for attribute “rel” on element “a”: The string “toolbox-live” is not a registered keyword.
Bad value “toolbox-share” for attribute “rel” on element “a”: The string “toolbox-share” is not a registered keyword.
Duplicate ID “toolbox-lang”.
Bad value “tab1” for attribute “rel” on element “a”: The string “tab1” is not a registered keyword.
Bad value “tab2” for attribute “rel” on element “a”: The string “tab2” is not a registered keyword.
Bad value “tab3” for attribute “rel” on element “a”: The string “tab3” is not a registered keyword.
Bad value “tab4” for attribute “rel” on element “a”: The string “tab4” is not a registered keyword.
Bad value “tab5” for attribute “rel” on element “a”: The string “tab5” is not a registered keyword.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “https://twitter.com/intent/tweet?text=home page : https://gecina.fr/fr” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “https://www.linkedin.com/shareArticle?mini=true&url=https://gecina.fr/fr&title=home page&summary=description&source=” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “” for attribute “action” on element “form”: Must be non-empty.
Attribute “height” not allowed on element “div” at this point.
Attribute “width” not allowed on element “div” at this point.
Bad value “500px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
Bad value “944px” for attribute “width” on element “iframe”: Expected a digit but saw “p” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “p” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “Calque_1”.
Duplicate ID “tab1”.
Duplicate ID “tab2”.
Duplicate ID “tab3”.
Duplicate ID “tab4”.
Duplicate ID “tab5”.
No “p” element in scope but a “p” end tag seen.
Bad value “” for attribute “id” on element “img”: An ID must not be the empty string.
Bad value “” for attribute “width” on element “img”: The empty string is not a valid non-negative integer.
Bad value “” for attribute “height” on element “img”: The empty string is not a valid non-negative integer.
Duplicate ID “”.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “user-email”.
Duplicate ID “dest-email”.
Duplicate ID “url”.
Duplicate ID “commentaires”.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “toolbox-lang” was here.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
Empty heading.
The first occurrence of ID “Calque_1” was here.
The first occurrence of ID “tab1” was here.
The first occurrence of ID “tab2” was here.
The first occurrence of ID “tab3” was here.
The first occurrence of ID “tab4” was here.
The first occurrence of ID “tab5” was here.
The first occurrence of ID “” was here.
The first occurrence of ID “user-email” was here.
The first occurrence of ID “dest-email” was here.
The first occurrence of ID “url” was here.
The first occurrence of ID “commentaires” was here.