[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.klvn.cz\/vyhodnocujte-vykon-vasi-webove-stranky-protoze-na-kazde-sekunde-zalezi\/#Article","mainEntityOfPage":"https:\/\/www.klvn.cz\/vyhodnocujte-vykon-vasi-webove-stranky-protoze-na-kazde-sekunde-zalezi\/","headline":"Vyhodnocujte v\u00fdkon va\u0161\u00ed webov\u00e9 str\u00e1nky, proto\u017ee na ka\u017ed\u00e9 sekund\u011b z\u00e1le\u017e\u00ed","name":"Vyhodnocujte v\u00fdkon va\u0161\u00ed webov\u00e9 str\u00e1nky, proto\u017ee na ka\u017ed\u00e9 sekund\u011b z\u00e1le\u017e\u00ed","description":"P\u00e1r let zp\u00e1tky, Amazon ohl\u00e1sil, \u017ee za ka\u017ed\u00e9 zrychlen\u00ed jejich webov\u00e9 str\u00e1nky o sto milisekund zaznamenaj\u00ed zv\u00fd\u0161en\u00ed zisku o jedno procento. Tohle bylo n\u00e1sledov\u00e1no ozn\u00e1men\u00edm Google, \u017ee rychlost na\u010d\u00edt\u00e1n\u00ed webov\u00e9&hellip; <span class=\"read-more-span\"><a href=\"https:\/\/www.klvn.cz\/vyhodnocujte-vykon-vasi-webove-stranky-protoze-na-kazde-sekunde-zalezi\/\" class=\"more-link\">Pokra\u010dovat ve \u010dten\u00ed<span class=\"screen-reader-text\"> \"Vyhodnocujte v\u00fdkon va\u0161\u00ed webov\u00e9 str\u00e1nky, proto\u017ee na ka\u017ed\u00e9 sekund\u011b z\u00e1le\u017e\u00ed\"<\/span> <span class=\"genericon genericon-next\"><\/span><\/a><\/span>","datePublished":"2020-02-04","dateModified":"2020-02-04","author":{"@type":"Person","@id":"https:\/\/www.klvn.cz\/author\/#Person","name":"","url":"https:\/\/www.klvn.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/6eaf701939e92690bed32d6f2e2c0f9e1355f2e3837c1fb45fbfacf848239e2d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/6eaf701939e92690bed32d6f2e2c0f9e1355f2e3837c1fb45fbfacf848239e2d?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"klvn.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"url":"https:\/\/www.klvn.cz\/vyhodnocujte-vykon-vasi-webove-stranky-protoze-na-kazde-sekunde-zalezi\/","wordCount":871,"articleBody":"P\u00e1r let zp\u00e1tky, Amazon ohl\u00e1sil, \u017ee za ka\u017ed\u00e9 zrychlen\u00ed jejich webov\u00e9 str\u00e1nky o sto milisekund zaznamenaj\u00ed zv\u00fd\u0161en\u00ed zisku o jedno procento. Tohle bylo n\u00e1sledov\u00e1no ozn\u00e1men\u00edm Google, \u017ee rychlost na\u010d\u00edt\u00e1n\u00ed webov\u00e9 str\u00e1nky je v\u00fdznamn\u00fd faktor pro hodnocen\u00ed str\u00e1nky v\u00a0Google v\u00fdsledc\u00edch hodnocen\u00ed.\u00a0Proces optimalizace rychlosti na\u010d\u00edt\u00e1n\u00ed va\u0161\u00ed webov\u00e9 str\u00e1nky je nikdy nekon\u010d\u00edc\u00ed proces, jako nap\u0159\u00edklad b\u011bh na b\u011b\u017e\u00edc\u00edm p\u00e1su. Optimalizace rychlosti str\u00e1nky v\u017edycky bude m\u00edt n\u011bjak\u00fd ten prostor pro zlep\u0161en\u00ed a nikdy tedy z\u00e1konit\u011b nebude \u00fapln\u011b dosta\u010duj\u00edc\u00ed. S\u00a0t\u00edmto \u0159e\u010deno, tady jsou n\u011bjak\u00e9 kroky k\u00a0nav\u00fd\u0161en\u00ed rychlosti webov\u00e9 str\u00e1nky.\u00a0\tMinimalizujte http po\u017eadavky\u00a0Alespo\u0148 podle zve\u0159ejn\u011bn\u00e9 zpr\u00e1vy od spole\u010dnosti Yahoo, osmdes\u00e1t procent v\u0161ech dob na\u010d\u00edt\u00e1n\u00ed webov\u00fdch str\u00e1nek zab\u00edraj\u00ed pr\u00e1v\u011b rozli\u010dn\u00e9 \u010d\u00e1st\u00ed webov\u00e9 str\u00e1nky, viz tabulky, obr\u00e1zky, skripty, apod.\u00a0Nebo\u0165 je nutn\u00e9 u\u010dinit http po\u017eadavek pro ka\u017ed\u00fd z\u00a0t\u011bchto jednotliv\u00fdch element\u016f, \u010d\u00edm v\u00edce komponent\u016f je na str\u00e1nce, t\u00edm del\u0161\u00ed bude doba vykreslen\u00ed takov\u00e9 str\u00e1nky.\u00a0Prvotn\u00edm krokem, kdy\u017e se pokou\u0161\u00edte minimalizovat po\u017eadavky, je z\u00fa\u017eit a porovnat po\u010det po\u017eadavk\u016f a po\u010det po\u017eadavk\u016f, kolik str\u00e1nka vlastn\u011b dokon\u010d\u00ed.\u00a0S\u00a0Google Chrome, n\u00e1stroje pro v\u00fdvoj\u00e1\u0159e prohl\u00ed\u017ee\u010de dovoluj\u00ed u\u017eivatel\u016fm zhl\u00e9dnout po\u010det http po\u017eadavk\u016f u\u010din\u011bn\u00fdch webovou str\u00e1nkou. Abyste vid\u011bli po\u010det http po\u017eadavk\u016f, kter\u00e9 str\u00e1nka u\u010din\u00ed, u\u017eivatel\u00e9 mohou:\t\tKliknout prav\u00fdm tla\u010d\u00edtkem my\u0161i na str\u00e1nku, kterou pot\u0159ebuj\u00ed analyzovat a zvolit \u201einspect\u201c (prohl\u00e9dnout)\t\tKliknout na Network tab (z\u00e1lo\u017eka \u201es\u00ed\u0165\u201c)V\u00a0p\u0159\u00edpad\u011b, \u017ee je\u00a0 z\u00e1lo\u017eka \u201es\u00ed\u0165\u201c nedostupn\u00e1, budete muset p\u0159et\u00e1hnout levou hranici d\u00e1le do leva a roz\u0161\u00ed\u0159it tak celou kolonku.\u00a0N\u00e1zev sloupce ozna\u010duje soubory, um\u00edst\u011bn\u00e9 na str\u00e1nce. Velikost ka\u017ed\u00e9ho souboru je uk\u00e1z\u00e1na pod sloupcem velikosti a tak\u00e9 je zde uveden p\u0159edpokl\u00e1dan\u00fd \u010das k\u00a0na\u010dten\u00ed ka\u017ed\u00e9ho souboru, co\u017e je ve sloupci \u201e\u010das\u201c.\u00a0Lev\u00fd doln\u00ed roh str\u00e1nky zobrazuje celkov\u00fd po\u010det po\u017eadavk\u016f, kter\u00e9 str\u00e1nka u\u010dinila. U\u017eivatel\u00e9 tak budou schopni zrychlit dobu na\u010d\u00edt\u00e1n\u00ed jejich webov\u00e9 str\u00e1nky redukov\u00e1n\u00edm tohoto \u010d\u00edsla. Nejp\u0159\u00edm\u011bj\u0161\u00ed cestou je vyhodnotit set soubor\u016f a identifikovat ty, kter\u00e9 lze pova\u017eovat za nepot\u0159ebn\u00e9.\u00a0Zat\u00edmco m\u016f\u017ee n\u011bjakou chv\u00edli trvat, ne\u017e si v\u0161imnete n\u011bjak\u00e9ho podstatn\u00e9ho rozd\u00edlu, p\u00e1r soubor\u016f m\u016f\u017ee b\u00fdt tak\u00e9 pova\u017eov\u00e1no za hlavn\u00ed kandid\u00e1ty na konsolidaci.\u00a0\tPou\u017e\u00edvejte skripty pro asynchronn\u00ed na\u010d\u00edt\u00e1n\u00ed\u00a0Skripty jako je JavaScript nebo CSS mohou b\u00fdt na\u010dteny dv\u011bma r\u016fzn\u00fdmi zp\u016fsoby \u2013 synchronn\u011b nebo asynchronn\u011b. Synchronizovan\u00e9 na\u010d\u00edt\u00e1n\u00ed zahrnuje na\u010d\u00edt\u00e1n\u00ed jednotliv\u00fdch vybran\u00fdch polo\u017eek jdouc\u00edch po sob\u011b, v\u017edy po jedn\u00e9, v\u00a0tom sam\u00e9m po\u0159ad\u00ed, v\u00a0jak\u00e9m jsou zobrazeny na obrazovce. V\u00a0asynchronn\u00edm na\u010d\u00edt\u00e1n\u00ed jsou skripty na\u010d\u00edt\u00e1n\u00ed najednou, co\u017e m\u016f\u017ee pomoci trochu urychlit proces. U\u017eivatel\u00e9 tak\u00e9 mohou up\u0159ednostnit na\u010d\u00edt\u00e1n\u00ed specifick\u00fdch element\u016f, ani\u017e by musel \u010dekat, a\u017e se extern\u00ed zdroje na\u010dtou.\u00a0Pokud tedy prohl\u00ed\u017ee\u010d najde nebo naraz\u00ed na asynchronn\u00ed CSS soubor nebo na JavaScript, na\u010d\u00edt\u00e1n\u00ed str\u00e1nky se zastav\u00ed, dokud relevantn\u00ed archiv nebude \u00fapln\u011b na\u010dten. Av\u0161ak pro asynchronn\u00ed data plat\u00ed, \u017ee prohl\u00ed\u017ee\u010d bude pokra\u010dovat s\u00a0na\u010d\u00edt\u00e1n\u00edm ostatn\u00edch element\u016f str\u00e1nky.\u00a0Pro WordPress, u\u017eivatel\u00e9 mohou zkontrolovat mo\u017enosti jin\u00e9, krom\u011b blokov\u00e1n\u00ed-vykreslov\u00e1n\u00ed CSS\/JS, kdy\u017e pou\u017e\u00edv\u00e1te WP Rocket z\u00e1lo\u017eky statick\u00fdch soubor\u016f.\u00a0M\u016f\u017eete tak\u00e9 na\u010d\u00edst CSS nebo JS soubory p\u0159\u00edmo za pou\u017eit\u00ed asynchronn\u00ed \u010di defer funkce v\u00a0JavaScrptu. N\u00ed\u017ee je p\u0159\u00edklad takov\u00e9 asynchronn\u00ed mo\u017enosti:\u00a0\u00a0Ulo\u017een\u00e9 zm\u011bny tak dovol\u00ed u\u017eivatel\u016fm ov\u011b\u0159it si, \u017ee v\u0161echno bylo na\u010dteno tak, jak m\u00e1 b\u00fdt.\u00a0\tRedukujte \u010das odpov\u011bdi serveru\u00a0Jeden z\u00a0podstatn\u00fdch faktor\u016f v\u00a0ur\u010dov\u00e1n\u00ed toho, jak rychle se vlastn\u011b webov\u00e1 str\u00e1nka na\u010d\u00edt\u00e1, je tak\u00e9 \u010das, kter\u00fd je spot\u0159ebov\u00e1n pro DNS. DNS lookup je proces identifikace specifick\u00e9 webov\u00e9 str\u00e1nky a jej\u00edho n\u00e1zvu v\u00a0z\u00e1znamu. M\u016f\u017eete si to p\u0159edstavit jako po\u010d\u00edta\u010d, kter\u00fd prohl\u00ed\u017e\u00ed telefonn\u00ed seznam p\u0159i hled\u00e1n\u00ed konkr\u00e9tn\u00edho \u010d\u00edsla.\u00a0\u010cas, kter\u00fd to zabere, ne\u017e se tento krok dokon\u010d\u00ed, je odvozen od toho, jak rychl\u00fd je vlastn\u011b u\u017eivatel\u016fv DNS poskytovatel. Pokud u\u017eivatel zjist\u00ed, \u017ee nen\u00ed dostate\u010dn\u011b rychl\u00fd, m\u016f\u017ee b\u00fdt mo\u017en\u00e1 ta spr\u00e1vn\u00e1 chv\u00edle na zm\u011bnu k\u00a0rychlej\u0161\u00edmu poskytovateli DNS. Pro pomoc s\u00a0volbou DNS poskytovatele, m\u016f\u017eete ur\u010dit\u011b zkonzultovat nap\u0159\u00edklad r\u016fzn\u00e1 hl\u00e1\u0161en\u00ed s\u00a0porovn\u00e1n\u00edm rychlosti DNS poskytovatel\u016f, jako je nap\u0159\u00edklad toto z\u00a0SolveDNS, kter\u00e9 poskytuje m\u011bs\u00ed\u010dn\u00ed aktualizace hodnocen\u00ed rychlosti r\u016fzn\u00fdch poskytovatel\u016f.                                                                                                                                                                                                                                                                                                                                                                                        3.5\/5 - (2 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Vyhodnocujte v\u00fdkon va\u0161\u00ed webov\u00e9 str\u00e1nky, proto\u017ee na ka\u017ed\u00e9 sekund\u011b z\u00e1le\u017e\u00ed","item":"https:\/\/www.klvn.cz\/vyhodnocujte-vykon-vasi-webove-stranky-protoze-na-kazde-sekunde-zalezi\/#breadcrumbitem"}]}]