Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
The first occurrence of ID “url” was here.
This document appears to be written in English but the “html” start tag has “lang="ru"”. Consider using “lang="en"” (or variant) instead.
Errors:
Bad value “x-dns-prefetch-control” for attribute “http-equiv” on element “meta”.
Bad value “cn” for attribute “hreflang” on element “link”: The language subtag “cn” is not a valid ISO language part of a language tag.
Bad value “x-pjax-version” for attribute “http-equiv” on element “meta”.
Bad value “x-rim-auto-match” for attribute “http-equiv” on element “meta”.
Element “dl” is missing a required child element.
Element “img” is missing required attribute “src”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “/landing-2016/images/widgets/referral/1/referral_en--m.webp 1x,
/landing-2016/images/widgets/referral/1/referral_en--m@2x.webp 2x” for attribute “srcset” on element “source”: Expected width descriptor but found “1x” at “…_en--m.webp 1x,”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)
Bad value “/landing-2016/images/widgets/referral/1/referral_en--m.jpg 1x,
/landing-2016/images/widgets/referral/1/referral_en--m@2x.jpg 2x” for attribute “srcset” on element “source”: Expected width descriptor but found “1x” at “…l_en--m.jpg 1x,”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)
A “source” element that has a following sibling “source” element or “img” element with a “srcset” attribute must have a “media” attribute and/or “type” attribute.
Bad value “/landing-2016/images/widgets/motivation/motivation_en--m.webp 1x,
/landing-2016/images/widgets/motivation/motivation_en--m@2x.webp 2x” for attribute “srcset” on element “source”: Expected width descriptor but found “1x” at “…_en--m.webp 1x,”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)
Bad value “/landing-2016/images/widgets/motivation/motivation_en--m.jpg 1x,
/landing-2016/images/widgets/motivation/motivation_en--m@2x.jpg 2x” for attribute “srcset” on element “source”: Expected width descriptor but found “1x” at “…n_en--m.jpg 1x,”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)
Bad value “/landing-2016/images/services/gifts/screencast_en--m.webp 1x,
/landing-2016/images/services/gifts/screencast_en--m@2x.webp 2x” for attribute “srcset” on element “source”: Expected width descriptor but found “1x” at “…_en--m.webp 1x,”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)
Bad value “/landing-2016/images/services/gifts/screencast_en--m.jpg 1x,
/landing-2016/images/services/gifts/screencast_en--m@2x.jpg 2x” for attribute “srcset” on element “source”: Expected width descriptor but found “1x” at “…t_en--m.jpg 1x,”. (When the “sizes” attribute is present, all image candidate strings must specify a width.)
Duplicate ID “url”.
Attribute “role” not allowed on element “label” at this point.
Attribute “href” not allowed on element “label” at this point.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “itemprop” attribute was specified, but the element is not a property of any item.