▁and ▁Mike ▁Walker ) ▁contributed ▁their ▁time ▁and ▁expert ise ▁to ▁the ▁smaller ▁enter prise . ▁A ▁number ▁of ▁designs ▁by ▁John ▁Cla pp ison ▁were ▁adapted ▁for ▁use ▁at ▁Sc ar borough ▁Pot tery . ▁ ▁Many ▁collect ors ▁of ▁Horn se a ▁Pot tery ▁also ▁collect ▁Sc ar borough ▁due ▁to ▁this ▁inter relation ▁although ▁it ▁is ▁often ▁difficult ▁to ▁identify ▁Sc ar borough ▁Pot tery , ▁particularly ▁as ▁very ▁few ▁items ▁were ▁marked . ▁ ▁Notes ▁ ▁References ▁Sc ar borough ▁Pot tery , ▁a ▁Collect ors ' ▁Guide ▁by ▁Paul ine ▁Co yle ▁ ▁Category : C er am ics ▁manufact ur ers ▁of ▁England ▁Category : S car borough , ▁North ▁York shire <0x0A> </s> ▁Web ▁performance ▁refers ▁to ▁the ▁speed ▁in ▁which ▁web ▁pages ▁are ▁downloaded ▁and ▁displayed ▁on ▁the ▁user ' s ▁web ▁browser . ▁Web ▁performance ▁optimization ▁( W PO ), ▁or ▁website ▁optimization ▁is ▁the ▁field ▁of ▁knowledge ▁about ▁increasing ▁web ▁performance . ▁ ▁F aster ▁website ▁download ▁spe eds ▁have ▁been ▁shown ▁to ▁increase ▁visitor ▁ret ention ▁and ▁loyal ty ▁and ▁user ▁satisfaction , ▁especially ▁for ▁users ▁with ▁slow ▁internet ▁connections ▁and ▁those ▁on ▁mobile ▁devices . ▁Web ▁performance ▁also ▁leads ▁to ▁less ▁data ▁trav elling ▁across ▁the ▁web , ▁which ▁in ▁turn ▁low ers ▁a ▁website ' s ▁power ▁consumption ▁and ▁environmental ▁impact . ▁Some ▁aspects ▁which ▁can ▁affect ▁the ▁speed ▁of ▁page ▁load ▁include ▁browser / server ▁cache , ▁image ▁optimization , ▁and ▁encryption ▁( for ▁example ▁SSL ), ▁which ▁can