{"id":267442,"date":"2023-05-11T05:44:04","date_gmt":"2023-05-11T02:44:04","guid":{"rendered":"https:\/\/freevpnplanet.com\/blog\/what-does-a-vpn-do\/"},"modified":"2026-06-08T00:30:11","modified_gmt":"2026-06-07T21:30:11","slug":"what-does-a-vpn-do","status":"publish","type":"post","link":"https:\/\/freevpnplanet.com\/cs\/blog\/what-does-a-vpn-do\/","title":{"rendered":"Co d\u011bl\u00e1 VPN? Jak chr\u00e1n\u00ed va\u0161e online soukrom\u00ed"},"content":{"rendered":"\n<p class=\"\">Poka\u017ed\u00e9, kdy\u017e se p\u0159ipoj\u00edte online, v\u00e1\u0161 poskytovatel internetov\u00e9ho p\u0159ipojen\u00ed m\u016f\u017ee vid\u011bt, co d\u011bl\u00e1te. To sam\u00e9 plat\u00ed pro kohokoli, kdo sd\u00edl\u00ed stejnou ve\u0159ejnou Wi-Fi s\u00ed\u0165. VPN to zm\u011bn\u00ed. Za\u0161ifruje v\u00e1\u0161 internetov\u00fd provoz a skryje va\u0161i IP address \u2014 tak\u017ee va\u0161e online aktivity z\u016fstanou soukrom\u00e9, a\u0165 u\u017e jste doma, v pr\u00e1ci nebo na cest\u00e1ch.<\/p>\n\n\n\n<p class=\"\">Tento pr\u016fvodce vysv\u011btluje, co VPN d\u011blaj\u00ed, jak funguj\u00ed a jak vybrat tu spr\u00e1vnou.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Co je to VPN?<\/h2>\n\n\n\n<p class=\"\">VPN je zkratka pro virtual private network. Vytv\u00e1\u0159\u00ed \u0161ifrovan\u00e9 p\u0159ipojen\u00ed mezi va\u0161\u00edm za\u0159\u00edzen\u00edm a VPN serverem, kter\u00fd stoj\u00ed mezi v\u00e1mi a zbytkem internetu. VPN server vy\u0159izuje va\u0161e po\u017eadavky \u2014 webov\u00e9 str\u00e1nky vid\u00ed jeho IP adresu, nikoli va\u0161i.<\/p>\n\n\n\n<p class=\"\">P\u0159edstavte si to jako soukrom\u00fd tunel pro v\u00e1\u0161 internetov\u00fd provoz. Data proch\u00e1zej\u00ed t\u00edmto tunelem \u0161ifrovan\u00e1, mimo dosah kohokoli, kdo by se je mohl pokusit zachytit.<\/p>\n\n\n\n<p class=\"\">S\u00edt\u011b VPN byly p\u016fvodn\u011b vytvo\u0159eny pro firmy, aby umo\u017enily zam\u011bstnanc\u016fm bezpe\u010dn\u00e9 p\u0159ipojen\u00ed k firemn\u00edm s\u00edt\u00edm odkudkoli. Dnes je osobn\u00ed VPN praktick\u00fd ka\u017edodenn\u00ed n\u00e1stroj \u2013 pou\u017e\u00edvan\u00fd miliony lid\u00ed k ochran\u011b jejich soukrom\u00ed online, zabezpe\u010den\u00ed p\u0159ipojen\u00ed ve ve\u0159ejn\u00fdch s\u00edt\u00edch a p\u0159\u00edstupu k obsahu v r\u016fzn\u00fdch regionech.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak funguje VPN?<\/h2>\n\n\n\n<p class=\"\">Kdy\u017e se p\u0159ipoj\u00edte k VPN, va\u0161e za\u0159\u00edzen\u00ed vytvo\u0159\u00ed \u0161ifrovan\u00fd tunel k VPN serveru. Ve\u0161ker\u00fd v\u00e1\u0161 internetov\u00fd provoz proch\u00e1z\u00ed t\u00edmto serverem, ne\u017e se dostane na \u0161ir\u0161\u00ed web.<\/p>\n\n\n\n<p class=\"\">Zde je to, co se m\u011bn\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Spojen\u00ed mezi va\u0161\u00edm za\u0159\u00edzen\u00edm a VPN serverem je \u0161ifrovan\u00e9 \u2014 pro kohokoli mimo tunel ne\u010diteln\u00e9.<\/li>\n\n\n\n<li>VPN server provozovan\u00fd va\u0161\u00edm poskytovatelem odes\u00edl\u00e1 va\u0161e po\u017eadavky na webov\u00e9 str\u00e1nky va\u0161\u00edm jm\u00e9nem.<\/li>\n\n\n\n<li>Weby uvid\u00ed IP adresu serveru, nikoli va\u0161i skute\u010dnou IP adresu a polohu.<\/li>\n<\/ul>\n\n\n\n<p class=\"\">VPN pou\u017e\u00edvaj\u00ed protokoly ke spr\u00e1v\u011b toho, jak se data pohybuj\u00ed t\u00edmto tunelem. VPN protokol ur\u010duje, jak je v\u00e1\u0161 provoz \u0161ifrov\u00e1n a jak rychle putuje. R\u016fzn\u00e9 protokoly d\u011blaj\u00ed r\u016fzn\u00e9 kompromisy mezi rychlost\u00ed a bezpe\u010dnost\u00ed \u2014 v\u00edce o tom v FAQ n\u00ed\u017ee.<\/p>\n\n\n\n<p class=\"\">V\u00fdsledek: v\u00e1\u0161 internet service provider vid\u00ed \u0161ifrovan\u00e9 p\u0159ipojen\u00ed k serveru. Nic v\u00edc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Co VPN vlastn\u011b d\u011bl\u00e1 pro v\u00e1s?<\/h2>\n\n\n\n<p class=\"\">Zde je to, co se zm\u011bn\u00ed v okam\u017eiku, kdy pou\u017eijete VPN p\u0159ipojen\u00ed:<\/p>\n\n\n\n<p class=\"\"><strong>Va\u0161e IP adresa z\u016fst\u00e1v\u00e1 soukrom\u00e1.<\/strong> VPN maskuje va\u0161i skute\u010dnou IP adresu a nahrazuje ji adresou serveru. To je to, co lid\u00e9 mysl\u00ed, kdy\u017e mluv\u00ed o zm\u011bn\u011b va\u0161\u00ed IP adresy \u2013 nen\u00ed to magie, je to sm\u011brov\u00e1n\u00ed. Str\u00e1nky a slu\u017eby nemohou propojit va\u0161e po\u017eadavky zp\u011bt s va\u0161\u00edm za\u0159\u00edzen\u00edm nebo polohou.<\/p>\n\n\n\n<p class=\"\"><strong>V\u00e1\u0161 internetov\u00fd provoz je \u0161ifrov\u00e1n.<\/strong> VPN \u0161ifruje v\u00e1\u0161 internetov\u00fd provoz d\u0159\u00edve, ne\u017e opust\u00ed va\u0161e za\u0159\u00edzen\u00ed. Kdokoli, kdo se jej pokus\u00ed zachytit \u2013 nap\u0159\u00edklad na ve\u0159ejn\u00e9 Wi-Fi s\u00edti \u2013 z\u00edsk\u00e1 za\u0161ifrovan\u00e1 data, kter\u00e1 nem\u016f\u017ee p\u0159e\u010d\u00edst.<\/p>\n\n\n\n<p class=\"\"><strong>Va\u0161e historie prohl\u00ed\u017een\u00ed z\u016fst\u00e1v\u00e1 soukrom\u00e1 p\u0159ed va\u0161\u00edm ISP.<\/strong> V\u00e1\u0161 internet service provider ji\u017e nevid\u00ed webov\u00e9 str\u00e1nky, kter\u00e9 nav\u0161t\u011bvujete. S no-logs VPN providerem si ani samotn\u00e1 VPN neuchov\u00e1v\u00e1 \u017e\u00e1dn\u00e9 z\u00e1znamy o va\u0161\u00ed aktivit\u011b.<\/p>\n\n\n\n<p class=\"\"><strong>Va\u0161e p\u0159ipojen\u00ed je chr\u00e1n\u011bno v otev\u0159en\u00fdch s\u00edt\u00edch.<\/strong> Ve\u0159ejn\u00e9 Wi-Fi lze snadno zneu\u017e\u00edt. VPN automaticky chr\u00e1n\u00ed va\u0161e data v jak\u00e9koli s\u00edti \u2013 nejsou pot\u0159eba \u017e\u00e1dn\u00e9 dal\u0161\u00ed kroky.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kdy pot\u0159ebujete VPN?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Na ve\u0159ejn\u00e9 Wi-Fi: <\/strong>Kav\u00e1rny, leti\u0161t\u011b, hotely \u2013 jak\u00e1koli otev\u0159en\u00e1 s\u00ed\u0165 m\u016f\u017ee vystavit va\u0161e data ostatn\u00edm ve stejn\u00e9 ve\u0159ejn\u00e9 Wi-Fi s\u00edti. VPN udr\u017euje va\u0161e p\u0159ipojen\u00ed soukrom\u00e9 bez ohledu na to, co se d\u011bje kolem v\u00e1s.<\/li>\n\n\n\n<li><strong>Pro streamov\u00e1n\u00ed: <\/strong>Streamovac\u00ed <a href=\"https:\/\/freevpnplanet.com\/cs\/streaming-watch\/\">slu\u017eby zobrazuj\u00ed <\/a>r\u016fzn\u00e9 knihovny v z\u00e1vislosti na va\u0161\u00ed poloze. P\u0159ipojte se p\u0159es VPN server v jin\u00e9 zemi a z\u00edsk\u00e1te p\u0159\u00edstup k obsahu, kter\u00fd je tam k dispozici. Rychlost dostate\u010dnou pro plynul\u00e9 streamov\u00e1n\u00ed by m\u011bla ka\u017ed\u00e1 dobr\u00e1 VPN zvl\u00e1dnout bez probl\u00e9m\u016f.<\/li>\n\n\n\n<li><strong>Pro gaming: <\/strong>VPN m\u016f\u017ee u n\u011bkter\u00fdch p\u0159ipojen\u00ed pomoci sn\u00ed\u017eit lag a chr\u00e1nit p\u0159ed p\u0159eru\u0161en\u00edm na s\u00ed\u0165ov\u00e9 \u00farovni b\u011bhem online hran\u00ed. Dedikovan\u00e9 hern\u00ed servery, kter\u00e9 jsou k dispozici v pr\u00e9miov\u00fdch pl\u00e1nech, jsou pro tento \u00fa\u010del specificky optimalizov\u00e1ny.<\/li>\n\n\n\n<li><strong>Pro pr\u00e1ci na <\/strong>d\u00e1lku: Firmy \u010dasto vy\u017eaduj\u00ed p\u0159ipojen\u00ed VPN pro bezpe\u010dn\u00fd p\u0159\u00edstup k intern\u00edm n\u00e1stroj\u016fm a syst\u00e9m\u016fm. Mobiln\u00ed VPN udr\u017euje toto p\u0159ipojen\u00ed stabiln\u00ed, i kdy\u017e se pohybujete mezi s\u00edt\u011bmi.<\/li>\n\n\n\n<li><strong>Pro ka\u017edodenn\u00ed <\/strong>soukrom\u00ed: Va\u0161e online aktivity jsou va\u0161e v\u011bc. VPN je takov\u00fdmi udr\u017e\u00ed \u2014 v\u00e1\u0161 poskytovatel internetov\u00e9ho p\u0159ipojen\u00ed nevid\u00ed, co d\u011bl\u00e1te, a pro inzerenty je t\u011b\u017e\u0161\u00ed vytvo\u0159it si profil na z\u00e1klad\u011b va\u0161eho prohl\u00ed\u017een\u00ed.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">R\u016fzn\u00e9 typy VPN<\/h2>\n\n\n\n<p class=\"\">Ne ka\u017ed\u00e1 VPN je vytvo\u0159ena pro stejn\u00fd \u00fa\u010del. Zde jsou hlavn\u00ed typy:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Osobn\u00ed <\/strong>VPN: To je to, co pou\u017e\u00edv\u00e1 v\u011bt\u0161ina lid\u00ed. Osobn\u00ed VPN \u0161ifruje va\u0161e internetov\u00e9 p\u0159ipojen\u00ed a chr\u00e1n\u00ed va\u0161e online soukrom\u00ed ve v\u0161ech va\u0161ich za\u0159\u00edzen\u00edch \u2013 telefon, notebook, tablet. Do t\u00e9to kategorie spadaj\u00ed spot\u0159ebitelsk\u00e9 VPN aplikace jako Planet VPN.<\/li>\n\n\n\n<li><strong>Mobile <\/strong>VPN: Mobile VPN je vytvo\u0159ena pro za\u0159\u00edzen\u00ed, kter\u00e1 \u010dasto st\u0159\u00eddaj\u00ed s\u00edt\u011b \u2013 p\u0159ech\u00e1zej\u00ed z dom\u00e1c\u00ed Wi-Fi na mobiln\u00ed data a zp\u011bt. Udr\u017euje p\u0159ipojen\u00ed stabiln\u00ed b\u011bhem t\u011bchto p\u0159echod\u016f bez v\u00fdpadk\u016f.<\/li>\n\n\n\n<li><strong>Softwarov\u00fd VPN <\/strong>client: Aplikace, kterou si nainstalujete do sv\u00e9ho za\u0159\u00edzen\u00ed. VPN client spravuje \u0161ifrovan\u00fd tunel mezi va\u0161\u00edm po\u010d\u00edta\u010dem a VPN serverem \u2013 nic nekonfigurujete ru\u010dn\u011b, v\u0161e prob\u00edh\u00e1 automaticky na pozad\u00ed.<\/li>\n\n\n\n<li><strong>Site-to-site VPN: <\/strong>Pou\u017e\u00edv\u00e1no firmami k propojen\u00ed odd\u011blen\u00fdch kancel\u00e1\u0159sk\u00fdch s\u00edt\u00ed mezi sebou. Nen\u00ed relevantn\u00ed pro individu\u00e1ln\u00ed u\u017eivatele, ale stoj\u00ed za to v\u011bd\u011bt, \u017ee tento term\u00edn existuje.<\/li>\n<\/ul>\n\n\n\n<p class=\"\">Pro osobn\u00ed pou\u017eit\u00ed pokryje spot\u0159ebitelsk\u00e1 VPN aplikace v\u0161e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Bezplatn\u00e1 VPN vs. placen\u00e1 VPN: Jak\u00fd je v tom rozd\u00edl?<\/h2>\n\n\n\n<p class=\"\">Bezplatn\u00e9 VPN a placen\u00e9 VPN nejsou stejn\u00fd produkt v r\u016fzn\u00fdch cenov\u00fdch hladin\u00e1ch. D\u011blaj\u00ed r\u016fzn\u00e9 kompromisy \u2013 a r\u016fzn\u00ed poskytovatel\u00e9 tyto kompromisy \u0159e\u0161\u00ed velmi odli\u0161n\u011b.<\/p>\n\n\n\n<p class=\"\"><strong>Co bezplatn\u00e9 VPN obvykle nab\u00edzej\u00ed:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159\u00edstup k omezen\u00e9 sad\u011b server locations<\/li>\n\n\n\n<li>Standardn\u00ed \u0161ifrov\u00e1n\u00ed pro ka\u017edodenn\u00ed browsing<\/li>\n\n\n\n<li>M\u00e9n\u011b mo\u017enost\u00ed protokol\u016f<\/li>\n\n\n\n<li>Z\u00e1kladn\u00ed privacy funkce bez datov\u00fdch limit\u016f (li\u0161\u00ed se podle poskytovatele)<\/li>\n<\/ul>\n\n\n\n<p class=\"\"><strong>Co placen\u00e9 pl\u00e1ny obvykle p\u0159id\u00e1vaj\u00ed:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mnohem \u0161ir\u0161\u00ed v\u00fdb\u011br um\u00edst\u011bn\u00ed server\u016f (60+ s Planet VPN Premium oproti 5 v bezplatn\u00e9m tarifu)<\/li>\n\n\n\n<li>Vy\u0161\u0161\u00ed rychlosti, zejm\u00e9na na streaming a gaming serverech<\/li>\n\n\n\n<li>Pokro\u010dil\u00e9 funkce: Kill Switch, Double VPN, split tunneling<\/li>\n\n\n\n<li>Prioritn\u00ed podpora<\/li>\n<\/ul>\n\n\n\n<p class=\"\">D\u016fle\u017eit\u011bj\u0161\u00ed ot\u00e1zkou nen\u00ed cena \u2014 je to d\u016fv\u011bra. Mnoho free VPN se financuje sb\u011brem a prodejem u\u017eivatelsk\u00fdch dat. To pop\u00edr\u00e1 cel\u00fd smysl. P\u0159ed pou\u017eit\u00edm jak\u00e9koli free VPN zkontrolujte, zda m\u00e1 skute\u010dn\u00e9 no-logs policy a kde je spole\u010dnost registrovan\u00e1.<\/p>\n\n\n\n<p class=\"\">Bezplatn\u00fd tarif Planet VPN funguje jinak: z\u00e1kladn\u00ed funkce z\u016fst\u00e1vaj\u00ed zdarma bez omezen\u00ed provozu nebo \u0161\u00ed\u0159ky p\u00e1sma a tarif je podporov\u00e1n reklamami nam\u00edsto sb\u011bru dat. Placen\u00fd tarif za\u010d\u00edn\u00e1 na 1,99 USD\/m\u011bs\u00edc a odemyk\u00e1 v\u00edce ne\u017e 60 serverov\u00fdch lokalit, servery optimalizovan\u00e9 pro streaming, hern\u00ed servery a pokro\u010dil\u00e9 funkce soukrom\u00ed v\u010detn\u011b Double VPN. Oba tarify pokr\u00fdvaj\u00ed a\u017e 10 sou\u010dasn\u00fdch p\u0159ipojen\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak vybrat spr\u00e1vnou VPN<\/h2>\n\n\n\n<p class=\"\">V\u00fdb\u011br poskytovatele VPN se omezuje na n\u011bkolik v\u011bc\u00ed, na kter\u00fdch skute\u010dn\u011b z\u00e1le\u017e\u00ed:<\/p>\n\n\n\n<p class=\"\"><strong>Jasn\u00e9 z\u00e1sady no-logs policy.<\/strong> VPN by nem\u011bla zaznamen\u00e1vat va\u0161e online aktivity. Hledejte poskytovatele, jejich\u017e z\u00e1sady no-logs policy pro\u0161ly nez\u00e1visl\u00fdm auditem \u2013 a nejsou pouze uvedeny v marketingov\u00fdch materi\u00e1lech.<\/p>\n\n\n\n<p class=\"\"><strong><\/strong>Jurisdikce. Na tom, kde je poskytovatel registrov\u00e1n, z\u00e1le\u017e\u00ed. Planet VPN s\u00eddl\u00ed v Rumunsku, mimo hlavn\u00ed mezin\u00e1rodn\u00ed sledovac\u00ed aliance \u2013 co\u017e znamen\u00e1 m\u00e9n\u011b z\u00e1konn\u00fdch povinnost\u00ed p\u0159ed\u00e1vat \u00fadaje o u\u017eivatel\u00edch.<\/p>\n\n\n\n<p class=\"\"><strong>Mo\u017enosti protokol\u016f.<\/strong> Spolehliv\u00e1 VPN nab\u00edz\u00ed v\u00edce ne\u017e jeden VPN protokol. Mezi b\u011b\u017en\u00e9 volby pat\u0159\u00ed WireGuard (rychl\u00fd, modern\u00ed), OpenVPN (open-source, dob\u0159e otestovan\u00fd) a IKEv2 (stabiln\u00ed na mobiln\u00edch za\u0159\u00edzen\u00edch). <a href=\"https:\/\/freevpnplanet.com\/cs\/blog\/vpn-protocols-what-are-they-and-where-they-are-used\/\">R\u016fzn\u00e9 <\/a>protokoly vyhovuj\u00ed r\u016fzn\u00fdm pot\u0159eb\u00e1m.<\/p>\n\n\n\n<p class=\"\"><strong>Podpora za\u0159\u00edzen\u00ed.<\/strong> VPN aplikace by m\u011bla fungovat na ka\u017ed\u00e9m za\u0159\u00edzen\u00ed, kter\u00e9 pou\u017e\u00edv\u00e1te \u2013 Windows, macOS, Android, iOS, Linux a dopl\u0148ky prohl\u00ed\u017ee\u010de, pokud je pot\u0159ebujete.<\/p>\n\n\n\n<p class=\"\"><strong>Transparentn\u00ed pricing.<\/strong> M\u011bli byste p\u0159esn\u011b v\u011bd\u011bt, co je zahrnuto v free planu a co z\u00edsk\u00e1te upgradem. Pokud to nen\u00ed p\u0159edem jasn\u00e9, je to sign\u00e1l.<\/p>\n\n\n\n<p class=\"\"><strong><\/strong>Rychlost. V\u00fdb\u011br VPN serveru bl\u00edzko va\u0161\u00ed polohy udr\u017euje va\u0161e internetov\u00e9 p\u0159ipojen\u00ed rychl\u00e9. Mnoho poskytovatel\u016f VPN nab\u00edz\u00ed doporu\u010den\u00ed server\u016f na z\u00e1klad\u011b toho, kde se nach\u00e1z\u00edte.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak za\u010d\u00edt pou\u017e\u00edvat VPN<\/h2>\n\n\n\n<p class=\"\">Za\u010d\u00edt m\u016f\u017eete p\u0159ibli\u017en\u011b za dv\u011b minuty:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Nainstalujte si aplikaci VPN <\/strong>do sv\u00e9ho za\u0159\u00edzen\u00ed. <a href=\"http:\/\/freevpnplanet.com\">Planet VPN <\/a>je k dispozici pro Windows, macOS, Android, iOS, Linux a v\u0161echny hlavn\u00ed prohl\u00ed\u017ee\u010de.<\/li>\n\n\n\n<li><strong>Vyberte VPN server.<\/strong> Server v bl\u00edzkosti v\u00e1m zajist\u00ed nejrychlej\u0161\u00ed p\u0159ipojen\u00ed. Vyberte server v jin\u00e9 zemi pro p\u0159\u00edstup k obsahu specifick\u00e9mu pro dan\u00fd region.<\/li>\n\n\n\n<li><strong>P\u0159ipojte se.<\/strong> V\u00e1\u0161 <a href=\"https:\/\/freevpnplanet.com\/cs\/blog\/what-is-vpn-encryption\/\">internetov\u00fd provoz je nyn\u00ed <\/a>\u0161ifrov\u00e1n a va\u0161e IP adresa je nahrazena adresou serveru.<\/li>\n<\/ol>\n\n\n\n<p class=\"\">\u017d\u00e1dn\u00e9 technick\u00e9 znalosti nejsou pot\u0159eba. Kvalitn\u00ed VPN zvl\u00e1dne v\u0161e na pozad\u00ed \u2013 vy jen norm\u00e1ln\u011b prohl\u00ed\u017e\u00edte.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Co d\u011bl\u00e1 VPN s va\u0161\u00edm internetov\u00fdm p\u0159ipojen\u00edm?<\/h3>\n\n\n\n<p class=\"\">VPN \u0161ifruje v\u00e1\u0161 internetov\u00fd provoz a sm\u011bruje jej p\u0159es VPN server, ne\u017e se dostane na web. V\u00e1\u0161 poskytovatel internetov\u00e9ho p\u0159ipojen\u00ed vid\u00ed \u0161ifrovan\u00e9 p\u0159ipojen\u00ed \u2014 nikoli str\u00e1nky, kter\u00e9 nav\u0161t\u011bvujete. Webov\u00e9 str\u00e1nky vid\u00ed IP adresu VPN serveru, nikoli va\u0161i. U dob\u0159e udr\u017eovan\u00e9 VPN s bl\u00edzk\u00fdm serverem je dopad na rychlost minim\u00e1ln\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Skryje VPN va\u0161i historii prohl\u00ed\u017een\u00ed?<\/h3>\n\n\n\n<p class=\"\">VPN br\u00e1n\u00ed va\u0161emu poskytovateli internetov\u00fdch slu\u017eeb vid\u011bt webov\u00e9 str\u00e1nky, kter\u00e9 nav\u0161t\u011bvujete. Tak\u00e9 chr\u00e1n\u00ed v\u00e1\u0161 provoz p\u0159ed ostatn\u00edmi ve stejn\u00e9 s\u00edti \u2013 co\u017e je u\u017eite\u010dn\u00e9 na ve\u0159ejn\u00e9 Wi-Fi. P\u0159esto by v\u00e1\u0161 poskytovatel VPN mohl technicky zaznamen\u00e1vat va\u0161i aktivitu. S no-logs VPN nem\u00e1 ani poskytovatel ulo\u017eeno nic, co by mohl p\u0159edat. Planet VPN dodr\u017euje p\u0159\u00edsn\u00e9 no-logs policy: \u017e\u00e1dn\u00e9 protokoly aktivit, \u017e\u00e1dn\u00e1 data o relac\u00edch, \u017e\u00e1dn\u00e1 historie proch\u00e1zen\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Je bezpe\u010dn\u00e9 pou\u017e\u00edvat free VPN?<\/h3>\n\n\n\n<p class=\"\">Z\u00e1le\u017e\u00ed na poskytovateli. N\u011bkter\u00e9 free VPN jsou transparentn\u00ed v tom, jak funguj\u00ed, a jejich pou\u017eit\u00ed je bezpe\u010dn\u00e9. Jin\u00e9 se financuj\u00ed protokolov\u00e1n\u00edm a prodejem u\u017eivatelsk\u00fdch dat \u2013 co\u017e p\u0159\u00edmo podkop\u00e1v\u00e1 to, co m\u00e1 VPN poskytovat. P\u0159ed pou\u017eit\u00edm jak\u00e9koli free VPN zkontrolujte no-logs policy, kde spole\u010dnost s\u00eddl\u00ed a zda byla tato policy nez\u00e1visle ov\u011b\u0159ena. Free VPN, kter\u00e9 p\u0159edem uv\u00e1d\u011bj\u00ed, jak pokr\u00fdvaj\u00ed n\u00e1klady \u2013 nap\u0159\u00edklad prost\u0159ednictv\u00edm reklam \u2013 jsou obecn\u011b d\u016fv\u011bryhodn\u011bj\u0161\u00ed ne\u017e ty, kter\u00e9 nab\u00edzej\u00ed v\u0161e za nic bez vysv\u011btlen\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Zpomaluj\u00ed VPN va\u0161e internetov\u00e9 p\u0159ipojen\u00ed?<\/h3>\n\n\n\n<p class=\"\">M\u00edrn\u00e9 zpomalen\u00ed je norm\u00e1ln\u00ed. \u0160ifrov\u00e1n\u00ed internetov\u00e9ho provozu vy\u017eaduje procesn\u00ed v\u00fdkon a va\u0161e data putuj\u00ed o n\u011bco del\u0161\u00ed trasou p\u0159es VPN server. V praxi je p\u0159i dobr\u00e9m p\u0159ipojen\u00ed s bl\u00edzk\u00fdm serverem rozd\u00edl b\u011bhem b\u011b\u017en\u00e9ho prohl\u00ed\u017een\u00ed t\u011b\u017eko post\u0159ehnuteln\u00fd. Modern\u00ed protokoly jako WireGuard jsou speci\u00e1ln\u011b navr\u017eeny tak, aby minimalizovaly dopad na v\u00fdkon. Pokud rychlost v\u00fdrazn\u011b klesne, obvykle pom\u016f\u017ee p\u0159epnut\u00ed na bli\u017e\u0161\u00ed server nebo rychlej\u0161\u00ed protokol v nastaven\u00ed va\u0161\u00ed VPN aplikace.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Poka\u017ed\u00e9, kdy\u017e se p\u0159ipoj\u00edte online, v\u00e1\u0161 poskytovatel internetov\u00e9ho p\u0159ipojen\u00ed m\u016f\u017ee vid\u011bt, co d\u011bl\u00e1te. To sam\u00e9 plat\u00ed pro kohokoli, kdo sd\u00edl\u00ed stejnou ve\u0159ejnou Wi-Fi s\u00ed\u0165. VPN to zm\u011bn\u00ed. Za\u0161ifruje v\u00e1\u0161 internetov\u00fd provoz a skryje va\u0161i IP address \u2014 tak\u017ee va\u0161e online aktivity z\u016fstanou soukrom\u00e9, a\u0165 u\u017e jste doma, v pr\u00e1ci nebo na cest\u00e1ch. Tento pr\u016fvodce vysv\u011btluje,&#8230;<\/p>\n","protected":false},"author":72,"featured_media":139520,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[695],"tags":[],"class_list":["post-267442","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vpn-cs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Co d\u011bl\u00e1 VPN? | Planet VPN<\/title>\n<meta name=\"description\" content=\"Odemkn\u011bte online soukrom\u00ed s VPN. Zjist\u011bte, jak VPN funguj\u00ed, \u0161ifruj\u00ed va\u0161e p\u0159ipojen\u00ed mezi va\u0161\u00edm za\u0159\u00edzen\u00edm a VPN serverem, aby chr\u00e1nily va\u0161i IP adresu.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/freevpnplanet.com\/cs\/blog\/what-does-a-vpn-do\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Co d\u011bl\u00e1 VPN? | Planet VPN\" \/>\n<meta property=\"og:description\" content=\"Odemkn\u011bte online soukrom\u00ed s VPN. Zjist\u011bte, jak VPN funguj\u00ed, \u0161ifruj\u00ed va\u0161e p\u0159ipojen\u00ed mezi va\u0161\u00edm za\u0159\u00edzen\u00edm a VPN serverem, aby chr\u00e1nily va\u0161i IP adresu.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/freevpnplanet.com\/cs\/blog\/what-does-a-vpn-do\/\" \/>\n<meta property=\"og:site_name\" content=\"Planet VPN\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-11T02:44:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-07T21:30:11+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/stage.freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-frame-6-20230511_024131_741537.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"360\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Veljko Petrovic\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Veljko Petrovic\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/freevpnplanet.com\/cs\/blog\/what-does-a-vpn-do\/\",\"url\":\"https:\/\/freevpnplanet.com\/cs\/blog\/what-does-a-vpn-do\/\",\"name\":\"Co d\u011bl\u00e1 VPN? | Planet VPN\",\"primaryImageOfPage\":{\"@id\":\"https:\/\/freevpnplanet.com\/cs\/blog\/what-does-a-vpn-do\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/freevpnplanet.com\/cs\/blog\/what-does-a-vpn-do\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-frame-6-20230511_024131_741537.jpg\",\"datePublished\":\"2023-05-11T02:44:04+00:00\",\"dateModified\":\"2026-06-07T21:30:11+00:00\",\"author\":{\"@id\":\"https:\/\/freevpnplanet.com\/cs\/#\/schema\/person\/f8926edb9eb2dc6e3cc47df87d33010a\"},\"description\":\"Odemkn\u011bte online soukrom\u00ed s VPN. 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need P2P-optimised servers and IP masking to protect their identity while sharing files.\"},{\"@type\":\"Audience\",\"audienceType\":\"Bargain Hunters\",\"description\":\"Shoppers comparing flight, hotel, car-rental and Steam prices across regions to capture the best deal available.\"},{\"@type\":\"Audience\",\"audienceType\":\"Activists & Journalists\",\"description\":\"Reporters and human-rights advocates working in restrictive regions who need obfuscation and censorship circumvention.\"},{\"@type\":\"Audience\",\"audienceType\":\"Casual Users\",\"description\":\"Everyday users seeking quick, free, no-signup privacy on public Wi-Fi or to bypass simple regional blocks.\"}],\"hasPart\":[{\"@type\":\"SoftwareApplication\",\"name\":\"Planet VPN for Desktop\",\"operatingSystem\":[\"Windows\",\"macOS\",\"Linux\"],\"url\":\"https:\/\/freevpnplanet.com\/cs\/free-vpn-pc\/\"},{\"@type\":\"MobileApplication\",\"name\":\"Planet VPN for 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