Cloudflare \u00e4r ett decentraliserat n\u00e4tverk f\u00f6r leverans av inneh\u00e5ll (CDN). Under ledning av VD Matthew Prince driver f\u00f6retaget 102 datacenter i 49 l\u00e4nder v\u00e4rlden \u00f6ver. I slutet av 2010 tillk\u00e4nnagavs den officiella lanseringen av f\u00f6retaget p\u00e5 konferensen TechCrunch Disrupt. Redan under det f\u00f6rsta \u00e5ret r\u00e4knades 150 miljoner anv\u00e4ndarinteraktioner med cirka 5 miljarder sidvisningar per m\u00e5nad.<\/p>\n
Cloudflare \u00e4r operat\u00f6ren av ett n\u00e4tverk som fungerar med b\u00e5de regionalt distribuerade servrar och servrar som \u00e4r anslutna via internet. Denna form av tj\u00e4nst kallas antingen Contend Delivery eller Content Distribution Network (CDN). Huvudsyftet \u00e4r att leverera inneh\u00e5ll till anv\u00e4ndarna med h\u00f6gre hastighet. S\u00e4rskilt n\u00e4r det g\u00e4ller att bygga en Webbplats<\/a> Denna teknik \u00e4r avsedd att ge h\u00e5llbara f\u00f6rb\u00e4ttringar. Minskad bandbredd \u00e4r ocks\u00e5 en viktig fr\u00e5ga i detta sammanhang.<\/p>\n Om en webbplats till exempel \u00e4r s\u00e4rskilt avsedd f\u00f6r bes\u00f6kare fr\u00e5n Asien och servern \u00e4r placerad i Tyskland, kan anv\u00e4ndningen av ett CDN faktiskt garantera en betydligt b\u00e4ttre \u00e5tkomsthastighet och p\u00e5 s\u00e5 s\u00e4tt locka betydligt fler bes\u00f6kare. P\u00e5 grund av den bepr\u00f6vade principen i praktiken beslutar sig allt fler f\u00f6retag f\u00f6r att inkludera olika tj\u00e4nster fr\u00e5n Cloudflare som en enkel integrering i sin utbudsportf\u00f6lj.<\/p>\n Enkelt uttryckt skapar Cloudflare i princip kopior av en viss webbplats p\u00e5 sina egna servrar. Dessa distribueras i sin tur \u00f6ver hela v\u00e4rlden. N\u00e4r potentiella bes\u00f6kare vill komma \u00e5t en sida p\u00e5 Internet ser systemet till att alla de servrar som snabbast kan leverera den beg\u00e4rda webbplatsen till anv\u00e4ndaren \u00e4r adresserade, vilket gynnar en v\u00e4lutvecklad lastf\u00f6rdelning. Cloudflares servrar kan b\u00e4st j\u00e4mf\u00f6ras med en webbl\u00e4sares sidcache.<\/p>\n Cloudflare anses fortfarande vara ett nystartat f\u00f6retag. Det kapital som hittills erh\u00e5llits fr\u00e5n investeringar uppg\u00e5r f\u00f6r n\u00e4rvarande till mer \u00e4n 182 miljoner US-dollar. F\u00f6rutom snabb distribution av webbplatser erbjuder f\u00f6retaget sina kunder ett omfattande DDoS-skydd och m\u00e5nga andra tj\u00e4nster inom IT- och informationss\u00e4kerhet. Dessa inkluderar bland annat en s\u00e5 kallad webbbrandv\u00e4gg. Samtidigt arbetade Cloudflare-anst\u00e4llda regelbundet med att f\u00f6rb\u00e4ttra befintliga produkter. Cloudflares algoritm har till exempel blivit allt mer kraftfull under de senaste \u00e5ren. F\u00f6retaget fick s\u00e4rskilt stor uppm\u00e4rksamhet n\u00e4r Wikileaks anv\u00e4nde CDN f\u00f6r att skydda sin egen webbplats 2013.<\/p>\n Under de senaste \u00e5ren har Cloudflare utvecklats mycket positivt i direkt j\u00e4mf\u00f6relse med marknaden som helhet. Samtidigt levererade f\u00f6retaget mer och mer inneh\u00e5ll till ett st\u00e4ndigt v\u00e4xande antal kunder. En unders\u00f6kning visade att knappt 7,7 procent av alla webbplatser som publiceras i v\u00e4rlden anv\u00e4nder CDN f\u00f6r sina \u00e4ndam\u00e5l. Av dessa tillh\u00f6r omkring 5,5 procent Cloudflare. Med denna siffra har f\u00f6retaget med s\u00e4te i San Francisco, USA, en marknadsandel p\u00e5 71,8 procent. L\u00e5ngt efter ligger Akamai, som har en marknadsandel p\u00e5 endast 12,7 procent.<\/p>\n Cloudflares DDoS-skydd \u00e4r i synnerhet en slags \"livf\u00f6rs\u00e4kring\" f\u00f6r m\u00e5nga f\u00f6retag, t.ex. operat\u00f6rer av en n\u00e4tbutik. Om en DDoS-attack \u00e4ger rum \u00e4r risken stor att n\u00e4tbutiken inte l\u00e4ngre \u00e4r tillg\u00e4nglig och att inga pengar kan tj\u00e4nas. I takt med att fler och fler detaljhandlare s\u00e4ljer sina varor uteslutande via internet forts\u00e4tter experterna att f\u00f6rv\u00e4nta sig tillv\u00e4xt f\u00f6r Cloudflare. P\u00e5 grund av spridningen av HTTPS-krypterade sidor v\u00e4xte behovet av att \u00e4ven dessa sidor lagras i cacheminnet p\u00e5 Cloudflares servrar.<\/p>\n En viktig f\u00f6rdel med CDN \u00e4r att webbplatser med statiskt inneh\u00e5ll, t.ex. bilder och Java-skripter, laddas mycket snabbare eftersom de inte l\u00e4ngre beh\u00f6ver h\u00e4mtas fr\u00e5n den faktiska servern som tidigare. Med Cloudflare kan allt inneh\u00e5ll p\u00e5 en sida h\u00e4mtas fr\u00e5n en server som ligger n\u00e4rmast i fr\u00e5ga om plats. S\u00e4rskilt om servern ligger l\u00e5ngt borta blir skillnaden m\u00e4rkbar mycket snabbt.<\/p>\n Cloudflare \u00e4r mycket kraftfullare \u00e4n vad som ofta h\u00e4vdas, men det \u00e4r inte alls ett rent CDN. F\u00f6rutom det ovann\u00e4mnda DDoS-skyddet erbjuder f\u00f6retaget sina anv\u00e4ndare en s\u00e5 kallad always-online-funktion. Med den h\u00e4r lilla funktionen kan relativt sm\u00e5 webbplatser, som vanligtvis lagras p\u00e5 en enda server, skyddas helt och h\u00e5llet mot attacker. Sidorna \u00e4r fortfarande online n\u00e4r de egentligen skulle ha varit offline f\u00f6r l\u00e4nge sedan.<\/p>\n Cloudflare erbjuder ocks\u00e5 m\u00f6jligheten att skapa s\u00e4rskilda SSL-anslutningar. Eftersom varje uppr\u00e4ttad anslutning g\u00e5r via en Cloudflare-namensserver finns det alltid en s\u00e4ker \u00f6verf\u00f6ringsv\u00e4g. Det amerikanska f\u00f6retaget har under en tid erbjudit helt gratis krypterad data\u00f6verf\u00f6ring. Anslutningen mellan Cloudflares servrar och webbplatsens servrar kan ocks\u00e5 krypteras. I dagsl\u00e4get accepterar Cloudflare \u00e4ven icke-certifierade anslutningar. En saknad Certifikat<\/a> g\u00f6r inte en anslutning via SSL mindre s\u00e4ker. En webbl\u00e4sare f\u00f6r denna bakgrund ger faktiskt ett varningsmeddelande.<\/p>\n Att optimera s\u00e4kerheten och prestandan har h\u00f6gsta prioritet f\u00f6r de flesta webbplatsoperat\u00f6rer. Cloudflare \u00e4r i princip en s\u00e5 kallad omv\u00e4nd proxy. S\u00e5 snart webbplatsen anv\u00e4nder Cloudflare leds all datatrafik genom leverant\u00f6rens n\u00e4tverk. Fr\u00e5n och med nu tar Cloudflare \u00f6ver det grundl\u00e4ggande skyddet mot DDoS-attacker, minimering av CSS-, Javascript- och HTML-kod och caching av statiskt inneh\u00e5ll p\u00e5 webbplatsen.<\/p>\n F\u00f6r aktivering m\u00e5ste potentiella kunder ha ett Cloudflare-konto p\u00e5 Hemsidan<\/a> hos leverant\u00f6ren. Kunden kan sedan ange sitt dom\u00e4nnamn och skicka alla DNS-zonposter f\u00f6r dom\u00e4nen i fr\u00e5ga till Cloudflares supportteam. Tillhandah\u00e5llandet av tj\u00e4nster fr\u00e5n Cloudflare kan ta upp till 48 timmar. Om Cloudflares anst\u00e4llda uppt\u00e4cker n\u00e5gra avvikelser kontaktar de vanligtvis kunden personligen eller via e-post och\/eller telefon.<\/p>\n Cloudflare har i allm\u00e4nhet ett mycket gott rykte. Den snabba \u00f6kningen av virtualisering, en \u00f6kad k\u00e4nsla av datas\u00e4kerhet och optimering av tillg\u00e4ngligheten g\u00f6r Cloudflares tj\u00e4nster extremt attraktiva. Intresserade parter b\u00f6r f\u00f6rst registrera sig gratis och noggrant utforska de tj\u00e4nster som erbjuds. De som vill ha lite fler tj\u00e4nster kan byta till en betald plan som erbjuder ytterligare funktioner och egenskaper som riktar sig till en specifik m\u00e5lgrupp. Med webbhotell som t.ex. webhoster.de AG<\/a> eller . Byr\u00e5n Hedersamt UG<\/a> Cloudflare kan anv\u00e4ndas gratis i alla taxor.<\/p>","protected":false},"excerpt":{"rendered":" Cloudflare: Spezialist f\u00fcr dezentral aufgestellte Netzwerke Bei Cloudflare handelt ist sich um ein dezentral aufgestelltes Content Delivery Network (CDN). Weltweit betreibt das Unternehmen unter der F\u00fchrung von CEO Matthew Prince 102 Rechenzentren in 49 L\u00e4ndern. Ende des Jahres 2010 wurde der offizielle Start f\u00fcr die Unternehmung auf der TechCrunch Disrupt Conference bekannt gegeben. Bereits im 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tekniska detaljer om Cloudflare<\/h2>\n
Aktivera Cloudflare f\u00f6r din egen webbplats<\/h2>\n
Slutsats om Cloudflare<\/h2>\n