{"id":4568,"date":"2020-04-22T09:00:00","date_gmt":"2020-04-22T07:00:00","guid":{"rendered":"https:\/\/besteto.pari.cz\/kanonizace-seo\/"},"modified":"2021-12-01T11:48:10","modified_gmt":"2021-12-01T10:48:10","slug":"kanonizace-seo","status":"publish","type":"post","link":"https:\/\/www.besteto.cz\/kanonizace-seo\/","title":{"rendered":"Zato\u010dte s duplicitami snadno a rychle. \u0158e\u0161en\u00edm je kanonizace"},"content":{"rendered":"
Kanonizace v\u00e1m ve v\u011bt\u0161in\u011b p\u0159\u00edpad\u016f pom\u016f\u017ee vy\u0159e\u0161it probl\u00e9my s duplicitami<\/strong> na webu nebo e\u2011shopu. Duplicitn\u00ed obsah m\u016f\u017ee vzniknout kop\u00edrov\u00e1n\u00edm obsahu z jin\u00fdch zdroj\u016f (konkurence, dodavatel, v\u00fdrobce) a taky kv\u016fli \u0161patn\u00fdm technick\u00fdm vlastnostem. S vyu\u017eit\u00edm kanonizace m\u016f\u017eete probl\u00e9m duplicitn\u00edho obsahu vy\u0159e\u0161it, vyhled\u00e1va\u010de budou spokojen\u00e9 a nedojde ke zhor\u0161en\u00ed SEO v\u00fdkonu<\/strong>.<\/p>\n <\/div>\n <\/div>\n\n\n Kanonizace (rel=\u201ccanonical\u201d<\/strong>) je HTML prvek pom\u00e1haj\u00edc\u00ed p\u0159edch\u00e1zet probl\u00e9m\u016fm s duplicitn\u00edm obsahem. Vlo\u017een\u00edm prvku canonical up\u0159ednostn\u00edte jednu str\u00e1nky p\u0159ed ostatn\u00edmi str\u00e1nkami se stejn\u00fdm, nebo velmi podobn\u00fdm obsahem na v\u00edce URL adres\u00e1ch.<\/p>\n <\/div>\n <\/div>\n\n\n Kanonick\u00e1 URL slou\u017e\u00ed jen jako doporu\u010den\u00ed pro vyhled\u00e1va\u010de<\/strong>, nicm\u00e9n\u011b je pova\u017eov\u00e1na za hodnot\u00edc\u00ed faktor a v\u00edme, \u017ee ji vyhled\u00e1va\u010de pou\u017e\u00edvaj\u00ed. <\/p>\n <\/div>\n <\/div>\n\n\n Nej\u010dast\u011bji se pomoc\u00ed kanonizace \u0159e\u0161\u00ed:<\/strong><\/p>\n <\/div>\n <\/div>\n\n\n Pokud budete m\u00edt produkt, kter\u00fd existuje ve v\u00edce variant\u00e1ch (barva, velikost, objem apod.), a neozna\u010d\u00edte hlavn\u00ed variantu atributem rel=\u201dcanonical\u201d, vzniknou z ostatn\u00edch variant duplicity.<\/p>\n <\/div>\n <\/div>\n\n\n Kanonick\u00e1 URL adresa (rel= \u201ccanonical\u201d) se nej\u010dast\u011bji nach\u00e1z\u00ed v HTML hlavi\u010dce head<\/strong>.<\/p>\n <\/div>\n <\/div>\n\n\n Chcete se p\u0159esv\u011bd\u010dit, jestli v HTML k\u00f3du tento prvek m\u00e1te? Sta\u010d\u00ed se do k\u00f3du pod\u00edvat. Stisknete prav\u00e9 tla\u010d\u00edtko my\u0161i, zvol\u00edte zobrazit zdrojov\u00fd k\u00f3d str\u00e1nky<\/strong>, nebo prozkoumat prvek, a v hlavi\u010dce head byste m\u011bli naj\u00edt canonical (Obr. 1).<\/p>\n <\/div>\n <\/div>\n\n\n \u0158ekn\u011bme \u017ee m\u00e1me jeden produkt, kter\u00fd m\u00e1 v\u00edce barevn\u00fdch proveden\u00ed (\u010derven\u00e1, zelen\u00e1, b\u00edl\u00e1, modr\u00e1, \u017elut\u00e1).<\/p>\n <\/div>\n <\/div>\n\n\n Takto vypadaj\u00ed URL adresy jednotliv\u00fdch barevn\u00fdch variant:<\/p>\n <\/div>\n <\/div>\n\n\n Pokud bychom nedosadili kanonickou URL, vytvo\u0159ili bychom 5 duplicit<\/strong>. <\/p>\n <\/div>\n <\/div>\n\n\n Zvol\u00edme jednu variantu jako hlavn\u00ed str\u00e1nku<\/strong> (nap\u0159. raketu b\u00edlou), kterou chceme zaindexovat, a kter\u00e1 bude m\u00edt v hlavi\u010dce head nastavenou kanonickou URL sama na sebe<\/strong>: <\/p>\n <\/div>\n <\/div>\n\n\n <head><\/em><\/p>\n <\/div>\n <\/div>\n\n\n <link rel = \u201ccanonical\u201d href=\u201d <\/\u200bhead> <\/em><\/p>\n <\/div>\n <\/div>\n\n\n Jakmile m\u00e1me definovanou hlavn\u00ed URL adresu, kterou chceme indexovat, ozna\u010d\u00edme ostatn\u00ed adresy<\/strong>:<\/p>\n <\/div>\n <\/div>\n\n\n <link rel = \u201ccanonical\u201d href=\u201d <link rel = \u201ccanonical\u201d href=\u201d <link rel = \u201ccanonical\u201d href=\u201d <link rel = \u201ccanonical\u201d href=\u201d Kanonick\u00e1 URL by v\u017edy m\u011bla odkazovat na indexovatelnou<\/strong> str\u00e1nku. V n\u011bkter\u00fdch p\u0159\u00edpadech se st\u00e1v\u00e1, \u017ee adresa odkazuje na str\u00e1nku pomoc\u00ed p\u0159esm\u011brov\u00e1n\u00ed 301, co\u017e m\u016f\u017ee vyhled\u00e1va\u010de zm\u00e1st. V souboru sitemap.xml<\/a> (seznam v\u0161ech str\u00e1nek na webu) by m\u011bla b\u00fdt pouze jedna indexovateln\u00e1 (hlavn\u00ed) str\u00e1nka dan\u00e9 verze\u2009\u2014\u2009viz v\u00fd\u0161e uveden\u00fd p\u0159\u00edklad s tenisovou raketou.<\/p>\n <\/div>\n <\/div>\n\n\n Kanonickou URL m\u016f\u017eeme pou\u017e\u00edt dv\u011bma zp\u016fsoby:<\/p>\n <\/div>\n <\/div>\n\n\n Pou\u017e\u00edv\u00e1 se, pokud m\u00e1te na e\u2011shopu mo\u017enost \u0159azen\u00ed<\/strong> (nap\u0159. se\u0159adit zbo\u017e\u00ed podle ceny, n\u00e1zvu,\u2026) a vznik\u00e1 velk\u00e9 mno\u017estv\u00ed URL adres. <\/p>\n <\/div>\n <\/div>\n\n\n Zde je p\u0159\u00edklad, jak by po se\u0159azen\u00ed zbo\u017e\u00ed URL adresy mohly vypadat:<\/p>\n <\/div>\n <\/div>\n\n\n V tomto p\u0159\u00edpad\u011b kanonick\u00e1 URL zabr\u00e1n\u00ed, aby se tyto adresy indexovaly a sd\u011bl\u00ed vyhled\u00e1va\u010d\u016fm, \u017ee existuje pouze jedna verze t\u00e9to str\u00e1nky.<\/p>\n <\/div>\n <\/div>\n\n\n Parametry se mohou do URL dostat i jinak.<\/strong> P\u0159\u00edkladem je u\u017eivatel, kter\u00fd se na v\u00e1\u0161 \u010dl\u00e1nek proklikne z PPC reklamy nebo mailingu. U t\u011bchto URL adres vkl\u00e1d\u00e1me pro sledov\u00e1n\u00ed n\u00e1v\u0161t\u011bvnosti trackovac\u00ed (UTM) parametry. <\/strong>Samy o sob\u011b UTM parametry nejsou probl\u00e9m. Pokud ale takov\u00fd u\u017eivatel zkop\u00edruje URL adresu i s parametry a vlo\u017e\u00ed ji jako odkaz n\u011bkde jinde m\u00edsto toho, aby pou\u017eil p\u016fvodn\u00ed URL adresu \u010dl\u00e1nku, najdenou tu m\u00e1me divnou URL dohledatelnou vyhled\u00e1va\u010dem<\/strong>. <\/p>\n <\/div>\n <\/div>\n\n\n Doporu\u010dujeme implementovat self-canonical v\u017edy, pokud to situace umo\u017e\u0148uje.<\/p>\n <\/div>\n <\/div>\n\n\n Pou\u017e\u00edv\u00e1 se v p\u0159\u00edpad\u011b, \u017ee existuje v\u00edce verz\u00ed jedn\u00e9 str\u00e1nky. P\u0159i nastaven\u00ed kanonizace byste m\u011bli pou\u017e\u00edvat absolutn\u00ed URL adresu<\/strong>, aby vyhled\u00e1va\u010d\u016fm bylo jasn\u00e9, \u017ee p\u0159esn\u011b tato adresa m\u00e1 b\u00fdt indexov\u00e1na. <\/p>\n <\/div>\n <\/div>\n\n\n <link rel=\u201dcanonical\u201d href=\u201d Zde nen\u00ed p\u0159\u00edli\u0161 jasn\u00e9 o jak\u00e9 um\u00edst\u011bn\u00ed se jedn\u00e1. Canonical se pou\u017e\u00edv\u00e1 i mezi dom\u00e9nami, tud\u00ed\u017e m\u016f\u017eeme odkazovat na r\u016fzn\u00e9 dom\u00e9ny<\/strong>, nejen na tu na\u0161\u00ed. Proto je dobr\u00e9 pou\u017e\u00edt absolutn\u00ed adresu, aby bylo jasn\u00e9, \u017ee canonical vede na n\u011bjakou str\u00e1nku v r\u00e1mci na\u0161i dom\u00e9ny.<\/p>\n <\/div>\n <\/div>\n\n\n M\u00e1me n\u011bkolik mo\u017enost\u00ed jak nastavit kanonickou URL adresu.<\/p>\n <\/div>\n <\/div>\n\n\n I tady se d\u00e1 vymyslet spousta chyb. Kdy\u017e o nich budete v\u011bd\u011bt, ur\u010dit\u011b se jim vyhnete obloukem.<\/p>\n <\/div>\n <\/div>\n\n\n Nikdy byste nem\u011bli pou\u017e\u00edvat z\u00e1rove\u0148 kanonickou adresu a atribut noindex, proto\u017ee jsou to opa\u010dn\u00e9 p\u0159\u00edkazy<\/strong>. Atributem noindex \u0159\u00edk\u00e1te vyhled\u00e1va\u010d\u016fm, aby danou str\u00e1nku neindexovaly a z\u00e1rov\u011bn kanonickou adresou jim sd\u011blujete, by tuto adresu indexovaly.<\/p>\n <\/div>\n <\/div>\n\n\n Co to je kanonick\u00e1 URL a k \u010demu slou\u017e\u00ed?<\/h2>\n <\/div>\n <\/div>\n\n\n
Jak vypad\u00e1 a kde se nej\u010dast\u011bji vyskytuje kanonick\u00e1 URL<\/h2>\n <\/div>\n <\/div>\n\n\n
Jak nastavit HTML tag ( rel=\u201dcanonical\u201d) <\/h2>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-cervena<\/strong><\/code><\/li>
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-zelena<\/strong><\/code><\/li>
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-bila<\/strong><\/code><\/li>
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-modra<\/strong><\/code><\/li>
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-zluta<\/strong><\/code><\/li><\/ul>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-bila<\/code>\u201d \/><\/em><\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-bila<\/code>\u201d \/><\/em><\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-bila<\/code>\u201d \/><\/em><\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-bila<\/code>\u201d \/><\/em><\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt\/tenisova-raketa-head-bila<\/code>\u201d \/><\/em><\/p>\n <\/div>\n <\/div>\n\n\n
Spr\u00e1vn\u00e9 pou\u017eit\u00ed tagu canonical<\/h2>\n <\/div>\n <\/div>\n\n\n
Odkazuj\u00edc\u00ed sama na sebe (self-canonical)<\/h3>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt123<\/strong><\/code><\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt123?sort=brand <\/strong><\/code>(\u0159azen\u00ed podle zna\u010dky)<\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt123?sort=price<\/strong><\/code> (\u0159azen\u00ed podle ceny)<\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt123?sort=size<\/strong><\/code> (\u0159azen\u00ed podle velikosti)<\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt123?sort=size&brand<\/strong><\/code> (kombinace \u0159azen\u00ed)<\/p>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.priklad.cz\/produkt123?sort=size&brand&price<\/strong><\/code><\/p>\n <\/div>\n <\/div>\n\n\n
Odkazuj\u00edc\u00ed na jinou str\u00e1nku<\/h3>\n <\/div>\n <\/div>\n\n\n
Co je absolutn\u00ed a relativn\u00ed adresa?<\/h4>\n <\/div>\n <\/div>\n\n\n
https:\/\/www.besteto.cz\/seo\/blog\/<\/code>\u201d><\/p>\n <\/div>\n <\/div>\n\n\n
seo\/blog<\/code>\u201d><\/li><\/ul>\n <\/div>\n <\/div>\n\n\n
Dal\u0161\u00ed mo\u017enosti, kde kanonickou URL nastavit<\/h2>\n <\/div>\n <\/div>\n\n\n
Nej\u010dast\u011bj\u0161\u00ed chyby<\/h2>\n <\/div>\n <\/div>\n\n\n