{"id":244,"date":"2021-02-19T09:57:58","date_gmt":"2021-02-19T09:57:58","guid":{"rendered":"https:\/\/dev.sourcecode.sk\/wsczkb\/?post_type=ht_kb&#038;p=244"},"modified":"2025-11-05T15:39:35","modified_gmt":"2025-11-05T14:39:35","slug":"ochrana-formularu-pres-captcha","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.cz\/podpora\/kb\/ochrana-formularu-pres-captcha\/","title":{"rendered":"Ochrana formul\u00e1\u0159\u016f p\u0159es Captcha"},"content":{"rendered":"\n<p style=\"font-size:18px\">Tento \u010dl\u00e1nek popisuje <strong>ochranu kontaktn\u00edch formul\u00e1\u0159\u016f<\/strong> p\u0159ed roboty a odes\u00edl\u00e1n\u00ed ne\u017e\u00e1douc\u00edch <strong>SPAM&nbsp;mail\u016f<\/strong> p\u0159es tzv. CAPTCHu. Vysv\u011btl\u00edme si o co jde, jak\u00e9 typy ochrany zn\u00e1me a tak\u00e9 jak takovou ochranu aktivovat na Va\u0161\u00ed str\u00e1nce.<\/p>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<h2 class=\"wp-block-heading\">Co je to captcha?<\/h2>\n\n\n\n<p><strong>CAPTCHA<\/strong> je syst\u00e9m ochrany webstr\u00e1nky, vytvo\u0159en\u00fd na <strong>odli\u0161en\u00ed \u010dlov\u011bka od automatizovan\u00e9ho stroje<\/strong>, resp. robota, kter\u00fd se sna\u017e\u00ed napadnout Va\u0161i str\u00e1nku. <strong>CAPTCHA<\/strong> <em>(Completely Automated Public Turing test to tell Computers and Humans Apart)<\/em> v&nbsp;preklad\u011b znamen\u00e1 &#8222;pln\u011b automatick\u00fd ve\u0159ejn\u00fd Turing\u016fv test na odli\u0161en\u00ed po\u010d\u00edta\u010d\u016f a lid\u00ed&#8220;. Na str\u00e1nce se p\u0159i vypln\u011bn\u00ed registrace nebo kontaktn\u00edho formul\u00e1\u0159e m\u016f\u017eete setkat s n\u011b\u010d\u00edm takov\u00fdm:<\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.websupport.sk\/support\/app\/uploads\/2019\/01\/NoCAPTCHA_reCAPTCHA-1.gif\" alt=\"\" class=\"wp-image-4698\" width=\"277\" height=\"74\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.websupport.sk\/support\/app\/uploads\/2019\/01\/captcha2-582d29295f9b58d5b1a6a292-2.png\" alt=\"\" class=\"wp-image-4701\" width=\"308\" height=\"132\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Jak\u00e9 typy CAPTCHA existuj\u00ed<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Logick\u00e1 &#8211; <\/strong>formou textu nebo matematick\u00e9ho p\u0159\u00edkladu, kter\u00fd je pot\u0159ebn\u00e9 p\u0159ed odesl\u00e1n\u00edm formul\u00e1\u0159e spr\u00e1vn\u011b vypo\u010d\u00edtat<\/li><li><strong>Textov\u00e1 &#8211; <\/strong>jde o p\u0159eps\u00e1n\u00ed deformovan\u00e9ho textu, kter\u00fd um\u00ed lidsk\u00fd mozek p\u0159e\u010d\u00edst. Text sta\u010d\u00ed p\u0159epsat do p\u0159\u00edslu\u0161n\u00e9ho pole, syst\u00e9m n\u00e1sledn\u011b dovol\u00ed odesl\u00e1n\u00ed formul\u00e1\u0159e<\/li><li><strong>Obr\u00e1zkov\u00e1<\/strong> &#8211; ochrana, kterou vymyslel Google &#8211; jde o v\u00fdb\u011br spr\u00e1vn\u00fdch obr\u00e1zk\u016f na z\u00e1klad\u011b ur\u010dit\u00e9 podm\u00ednky, nap\u0159. vybrat v\u0161echny dopravn\u00ed zna\u010dky z obr\u00e1zk\u016f<\/li><li><strong>reCAPTCHA<\/strong> &#8211; typ ochrany p\u0159ed SPAMem od Google<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Co m\u00e1m tedy d\u011blat, pokud jsou moje kontaktn\u00ed formul\u00e1\u0159e zneu\u017e\u00edvan\u00e9 roboty a odes\u00edlaj\u00ed SPAMy?<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">P\u0159id\u00e1n\u00ed captcha ochrany na str\u00e1nku<\/h2>\n\n\n\n<p>Implementace se li\u0161\u00ed od toho, v jak\u00e9m jazyce nebo redak\u010dn\u00edm syst\u00e9mu je str\u00e1nka vytvo\u0159en\u00e1. Pokud m\u00e1te sv\u00e9ho program\u00e1tora, kontaktujte ho a prov\u011b\u0159te mo\u017enosti implementace na Va\u0161i str\u00e1nku. Pokud si str\u00e1nku spravujete sami a pou\u017e\u00edv\u00e1te vlastn\u00ed PHP nebo HTML aplikaci, doporu\u010dujeme <strong><a rel=\"noreferrer noopener\" aria-label=\"tento&nbsp;tutori\u00e1l. (otvor\u00ed sa v novej karte)\" href=\"https:\/\/www.itnetwork.cz\/php\/bezpecnost\/nova-recaptcha-tutorial\" target=\"_blank\">tento&nbsp;tutori\u00e1l.<\/a><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Instalace reCAPTCHA do WordPressu<\/h2>\n\n\n\n<p>Dopln\u011bk <strong>Google Captcha (reCAPTCHA)<\/strong> je efektivn\u00ed bezpe\u010dnostn\u00ed \u0159e\u0161en\u00ed, kter\u00e9 ochr\u00e1n\u00ed Va\u0161i WordPress str\u00e1nku p\u0159ed SPAMom a umo\u017e\u0148uje pou\u017e\u00edt captcha ochranu na<strong> p\u0159ihl\u00e1\u0161en\u00ed, registraci, obnoven\u00ed hesla, koment\u00e1\u0159e, kontaktn\u00ed formul\u00e1\u0159e<\/strong> a pod. Podporovan\u00e1 je recaptcha v2, v3 a nediviteln\u00e1 ochrana.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/bestwebsoft.com\/demo-for-google-captcha\/?ref=readme\" target=\"_blank\" rel=\"noreferrer noopener\">Zobrazit demo pluginu<\/a><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Postup instalace<\/strong><\/p>\n\n\n\n<p>St\u00e1hn\u011bte si plugin na <strong><a href=\"https:\/\/sk.wordpress.org\/plugins\/google-captcha\/#installation\" target=\"_blank\" rel=\"noreferrer noopener\">t\u00e9to adrese<\/a>&nbsp;<\/strong>a postupujte s instalac\u00ed podle krok\u016f na zm\u00edn\u011bn\u00e9m odkaze, nainstalujte ho a aktivujte. P\u0159\u00edpadn\u011b plugin nainstalujte p\u0159\u00edmo z rohran\u00ed WordPressu p\u0159es <strong>Pluginy<\/strong> &gt; <strong>P\u0159idat nov\u00fd.<\/strong> V t\u00e9to \u010dasti vyhledejte plugin s n\u00e1zvem &#8222;Google Captcha (reCAPTCHA) by BestWebSoft&#8220; a spust\u00edte jeho instalaci. Po instalaci ho nezapome\u0148te <strong>Aktivovat.<\/strong><\/p>\n\n\n\n<p>Po nainstalovan\u00ed pluginu m\u016f\u017eete ochranu zapnout p\u0159id\u00e1n\u00edm tzv. shortcode &#8222;[bws_google_captcha]&#8220; ke konkr\u00e9tn\u00ed str\u00e1nce, p\u0159\u00edpadn\u011b kontaktn\u00edmu formul\u00e1\u0159i. Jako plugin na kontaktn\u00ed formul\u00e1\u0159e doporu\u010dujeme <strong><a rel=\"noreferrer noopener\" aria-label=\"Contact&nbsp;form&nbsp;7. (otvor\u00ed sa v novej karte)\" href=\"https:\/\/sk.wordpress.org\/plugins\/contact-form-7\/\" target=\"_blank\">Contact&nbsp;form&nbsp;7.<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-ht-blocks-messages wp-block-hb-message wp-block-hb-message--withicon\">K ochran\u011b syst\u00e9mu WordPress doporu\u010dujeme nainstalovat i dal\u0161\u00ed bezpe\u010dnostn\u00ed pluginy jako nap\u0159\u00edklad&nbsp;<strong>All In One WP Security &amp; Firewall<\/strong>&nbsp;nebo&nbsp;<strong>WordFence.<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-medium-font-size\" style=\"color:#177d58\"><strong>Blahop\u0159ejeme!&nbsp;Kontaktn\u00ed&nbsp;formul\u00e1\u0159e&nbsp;m\u00e1te&nbsp;zabezpe\u010den\u00e9&nbsp;p\u0159ed&nbsp;SPAMem.<\/strong><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tento \u010dl\u00e1nek popisuje ochranu kontaktn\u00edch formul\u00e1\u0159\u016f p\u0159ed roboty a odes\u00edl\u00e1n\u00ed ne\u017e\u00e1douc\u00edch SPAM&nbsp;mail\u016f p\u0159es tzv. CAPTCHu. Vysv\u011btl\u00edme si o co jde, jak\u00e9 typy ochrany zn\u00e1me a tak\u00e9 jak takovou ochranu aktivovat na Va\u0161\u00ed str\u00e1nce. Co je to captcha? CAPTCHA je syst\u00e9m ochrany webstr\u00e1nky, vytvo\u0159en\u00fd na odli\u0161en\u00ed \u010dlov\u011bka od automatizovan\u00e9ho stroje, resp&#8230;.<\/p>\n","protected":false},"author":3,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[63,15],"ht-kb-tag":[],"class_list":["post-244","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-redakcni-systemy","ht_kb_category-hosting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ochrana formul\u00e1\u0159\u016f p\u0159es Captcha - Websupport Centrum n\u00e1pov\u011bdy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.cz\/podpora\/kb\/ochrana-formularu-pres-captcha\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ochrana formul\u00e1\u0159\u016f p\u0159es Captcha - Websupport Centrum n\u00e1pov\u011bdy\" \/>\n<meta property=\"og:description\" content=\"Tento \u010dl\u00e1nek popisuje ochranu kontaktn\u00edch formul\u00e1\u0159\u016f p\u0159ed roboty a odes\u00edl\u00e1n\u00ed ne\u017e\u00e1douc\u00edch SPAM&nbsp;mail\u016f p\u0159es tzv. 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