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”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/tennissers/competitie/competitie-2017-04.jpg?preset=large thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/toptennis/nederlandse-mannen/thiemo-de-bakker/thiemo-de-bakker-davis-cup-2017--02.jpg?preset=large thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/toptennis/nederlandse-mannen/robin-haase/foto-11-06-18-15-31-44.jpg?preset=large thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/toptennis/nederlandse-vrouwen/bibiane-schoofs/bibiane-schoofs-libema-open-2.jpg?preset=large thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/toptennis/nederlandse-mannen/scott-griekspoor/scott-griekspoor-nk-tennis-2017-1.jpg?preset=large thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/toptennis/nederlandse-mannen/robin-haase/robin-haase-libema-open.png?preset=large thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/tennissers/competitie/competitie---jongens-aan-het-net.jpg?preset=span6 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/tennissers/competitie/competitie-dame-aan-net.jpg?preset=span6 ratio2to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Attribute “visible” not allowed on element “span” at this point.
Bad value “/siteassets/1.-knltb.nl/teasers/padel-competitie-teaserblock.jpg?preset=span6 ratio2to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/tennissers/beachtennis/margot-van-doorn-nk-beachtennis-2014.jpg?preset=span6 ratio2to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/homepage/robin-haase-2017-teaserblok-600x600.jpg?preset=span6 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/toptennis/nederlandse-loterij-nk-tennis-2017/van-de-zandschulp-westerhof-naar-finale.jpg?preset=span6 ratio2to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/homepage/waarom_tennis_homepage_600x600.jpg?preset=span6 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/homepage/lidmaatschapsvoordelen-teaser-300x300.jpg?preset=span6 ratio2to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/homepage/contact_teaser_600x300.jpg?preset=span6 ratio2to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/brandboxen/brandbox-scheidsrechter.jpg?preset=span6 ratio2to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/tennistv-stills/knltb-op-libema-open-still.jpg?preset=tennistv thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/tennistv-stills/spelers/robin-haase/haase-meet--beat-libema-open.jpg?preset=tennistv thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/tennistv-stills/eredivisie-heren-nieuwerkerk-430x242-still.jpeg?preset=tennistv thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/tennistv-stills/spelers/kiki-bertens/kiki-bertens-libema-open-2018-tennistv.jpg?preset=tennistv thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/toptennis/nederlandse-mannen/robin-haase/foto-11-06-18-15-31-44.jpg?preset=tennistv thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/siteassets/1.-knltb.nl/afbeeldingen/toptennis/nederlandse-vrouwen/bibiane-schoofs/bibiane-schoofs-libema-open-3.jpg?preset=tennistv thumbnail” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/nederlandse-loterij-2017-liggend-1.png?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/logo-heineken-1.jpg?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/logo-rabobank-1.png?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/logo-kpn.png?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/sponsor_menzis.jpg?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/tennisdirect-partnerlogo.png?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/sponsor_dunlop-1.png?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/sponsor_skyradio-1.jpg?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/sponsor_k-swiss-1.jpg?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/ad-partner-logo.png?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.
Bad value “/globalassets/generieke-afbeeldingen/sponsorlogos/logo-kia.png?preset=span3 ratio1to1” for attribute “src” on element “img”: Illegal character in query: space is not allowed.