{"id":90709,"date":"2026-11-14T14:00:00","date_gmt":"2026-11-14T11:00:00","guid":{"rendered":"https:\/\/www.indir.com\/haber\/?p=90709"},"modified":"2026-11-10T12:42:17","modified_gmt":"2026-11-10T09:42:17","slug":"404-hatasi-neden-404","status":"publish","type":"post","link":"https:\/\/www.indir.com\/haber\/404-hatasi-neden-404\/","title":{"rendered":"404 Hatas\u0131 Neden 404? Sayfa Bulunamad\u0131 Ne Demek?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">404 hatas\u0131, internette gezinen herkesin en az bir kez kar\u015f\u0131la\u015ft\u0131\u011f\u0131 &#8220;sayfa bulunamad\u0131&#8221; mesaj\u0131. Bir linke t\u0131klars\u0131n\u0131z, bekledi\u011finiz i\u00e7erik yerine b\u00fcy\u00fck bir 404 yaz\u0131s\u0131 \u00e7\u0131kar. Bu \u00fc\u00e7 rakam rastgele se\u00e7ilmi\u015f de\u011fil: web sunucular\u0131n\u0131n taray\u0131c\u0131larla konu\u015ftu\u011fu dilin bir par\u00e7as\u0131.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">404 Hatas\u0131 Ne Demek?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/developers.cloudflare.com\/support\/troubleshooting\/http-status-codes\/4xx-client-error\/error-404\/\" target=\"_blank\" rel=\"noopener\">Cloudflare<\/a>&#8216;in tan\u0131m\u0131na g\u00f6re 404 Not Found, sunucunun istenen kayna\u011f\u0131 bulamad\u0131\u011f\u0131n\u0131 g\u00f6steren bir HTTP durum kodu. Burada \u00f6nemli bir ayr\u0131nt\u0131 var: 404 ald\u0131ysan\u0131z siteye ula\u015fm\u0131\u015fs\u0131n\u0131z demektir. Sunucu \u00e7al\u0131\u015f\u0131yor, iste\u011finizi ald\u0131 ve cevap verdi; sadece arad\u0131\u011f\u0131n\u0131z adreste bir sayfa yok.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">404 Hatas\u0131 Neden 404?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Taray\u0131c\u0131n\u0131z bir sayfa istedi\u011finde sunucu her seferinde \u00fc\u00e7 haneli bir durum kodu g\u00f6nderiyor. Bu kodun ilk hanesi cevab\u0131n hangi s\u0131n\u0131fa ait oldu\u011funu s\u00f6yl\u00fcyor. 4 ile ba\u015flayan kodlar istemci hatas\u0131 anlam\u0131na geliyor; yani sorun iste\u011fin kendisinde, \u00f6rne\u011fin yanl\u0131\u015f yaz\u0131lm\u0131\u015f ya da art\u0131k ge\u00e7erli olmayan bir adreste.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sondaki 04 ise bu s\u0131n\u0131f i\u00e7indeki s\u0131ra numaras\u0131. 4xx ailesi s\u0131rayla 400 Bad Request (hatal\u0131 istek), 401 Unauthorized (kimlik do\u011frulama gerekli), 402 Payment Required (\u00f6deme gerekli), 403 Forbidden (eri\u015fim yasak) ve 404 Not Found (bulunamad\u0131) \u015feklinde ilerliyor. Yani 404, &#8220;istemci hatalar\u0131&#8221; grubundaki d\u00f6rd\u00fcnc\u00fc koddan sonra gelen be\u015finci kod.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/www.indir.com\/haber\/wp-content\/uploads\/2026\/11\/http-durum-kodlari-tablosu.webp\" alt=\"404 hatas\u0131 ve HTTP durum kodu s\u0131n\u0131flar\u0131 tablosu\" class=\"wp-image-90699\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u00dc\u00e7 haneli kod fikri webden de eski. Benzer bir sistem 1970&#8217;lerin ba\u015f\u0131nda FTP gibi protokollerde kullan\u0131l\u0131yordu. Web&#8217;in temel protokol\u00fc HTTP&#8217;nin 1.0 s\u00fcr\u00fcm\u00fc, Tim Berners-Lee ve arkada\u015flar\u0131n\u0131n yazd\u0131\u011f\u0131 RFC 1945 belgesiyle 1996&#8217;da resmile\u015fti ve 404 de bu standard\u0131n bir par\u00e7as\u0131 oldu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">CERN&#8217;deki 404 Numaral\u0131 Oda Efsanesi<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130nternette s\u0131k\u00e7a anlat\u0131lan bir hik\u00e2yeye g\u00f6re ilk web sunucusu CERN&#8217;de 404 numaral\u0131 bir odadayd\u0131 ve dosya bulunamay\u0131nca &#8220;404 numaral\u0131 odada bulunamad\u0131&#8221; mesaj\u0131 veriliyordu. Ho\u015f bir hik\u00e2ye ama kodun nereden geldi\u011fi yukar\u0131daki s\u0131n\u0131f d\u00fczeniyle a\u00e7\u0131k\u00e7a anla\u015f\u0131l\u0131yor; efsaneyi do\u011frulayan bir belge yok.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">404 Hatas\u0131 Neden \u00c7\u0131kar?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Adresin yanl\u0131\u015f yaz\u0131lmas\u0131<\/li>\n\n<li>Sayfa ta\u015f\u0131nd\u0131\u011f\u0131 halde eski linkin g\u00fcncellenmemesi<\/li>\n\n<li>\u0130\u00e7eri\u011fin silinmesi<\/li>\n\n<li>Ba\u015fka sitelerdeki bozuk ba\u011flant\u0131lar<\/li>\n\n<li>Arama motorlar\u0131n\u0131n art\u0131k var olmayan bir sayfay\u0131 g\u00f6stermeye devam etmesi<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">404, 410 ve 500 Aras\u0131ndaki Fark<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">404 yaln\u0131zca &#8220;bulunamad\u0131&#8221; der; sayfan\u0131n geri gelip gelmeyece\u011fi hakk\u0131nda bilgi vermez. Bir i\u00e7erik kal\u0131c\u0131 olarak kald\u0131r\u0131ld\u0131ysa 410 Gone kodu kullanmak daha do\u011fru. 403 eri\u015fimin yasak oldu\u011funu, 500 ise hatan\u0131n sunucunun kendisinde oldu\u011funu g\u00f6sterir. Baz\u0131 siteler var olmayan sayfa i\u00e7in 404 yerine normal bir &#8220;200 OK&#8221; yan\u0131t\u0131 ile bo\u015f bir sayfa d\u00f6nd\u00fcr\u00fcr; buna &#8220;soft 404&#8221; deniyor ve arama motorlar\u0131 a\u00e7\u0131s\u0131ndan istenmeyen bir durum.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">404 Hatas\u0131 G\u00f6r\u00fcnce Ne Yapmal\u0131?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u00d6nce adres \u00e7ubu\u011fundaki adresi kontrol edin; tek bir harf bile hataya yol a\u00e7abilir. Ard\u0131ndan sitenin ana sayfas\u0131na gidip arama kutusunu kullanabilirsiniz. Sorun sitenin kendisindeyse yapabilece\u011finiz pek bir \u015fey yok; site sahibi y\u00f6nlendirme eklemeli.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130nternetin arka plan\u0131ndaki benzer detaylar i\u00e7in <a href=\"https:\/\/www.indir.com\/haber\/ben-robot-degilim-kutusu-nasil-calisir\/\">&#8220;Ben robot de\u011filim&#8221; kutusu nas\u0131l \u00e7al\u0131\u015f\u0131r<\/a> ve <a href=\"https:\/\/www.indir.com\/haber\/kaydet-simgesi-neden-disket\/\">kaydet simgesi neden h\u00e2l\u00e2 disket<\/a> yaz\u0131lar\u0131m\u0131za da bakabilirsiniz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">S\u0131k\u00e7a Sorulan Sorular<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">404 hatas\u0131 vir\u00fcs oldu\u011funu mu g\u00f6sterir?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hay\u0131r. 404 hatas\u0131 yaln\u0131zca istenen sayfan\u0131n sunucuda bulunamad\u0131\u011f\u0131n\u0131 g\u00f6sterir; bilgisayar\u0131n\u0131zla ya da g\u00fcvenlikle ilgili de\u011fildir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">404 hatas\u0131 benim internetimden mi kaynaklan\u0131yor?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hay\u0131r. 404 ald\u0131ysan\u0131z internet ba\u011flant\u0131n\u0131z \u00e7al\u0131\u015f\u0131yor ve siteye ula\u015f\u0131yorsunuz demektir; sorun adreste ya da sitededir.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">404 ile 410 aras\u0131ndaki fark nedir?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">404 sayfan\u0131n bulunamad\u0131\u011f\u0131n\u0131 s\u00f6yler, 410 ise sayfan\u0131n bilerek ve kal\u0131c\u0131 olarak kald\u0131r\u0131ld\u0131\u011f\u0131n\u0131 belirtir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>404 hatas\u0131, internette gezinen herkesin en az bir kez kar\u015f\u0131la\u015ft\u0131\u011f\u0131 &#8220;sayfa bulunamad\u0131&#8221; mesaj\u0131. Bir linke t\u0131klars\u0131n\u0131z, bekledi\u011finiz i\u00e7erik yerine b\u00fcy\u00fck bir 404 yaz\u0131s\u0131 \u00e7\u0131kar. Bu \u00fc\u00e7 rakam rastgele se\u00e7ilmi\u015f de\u011fil: web sunucular\u0131n\u0131n taray\u0131c\u0131larla konu\u015ftu\u011fu dilin bir par\u00e7as\u0131. 404 Hatas\u0131 Ne Demek? Cloudflare&#8216;in tan\u0131m\u0131na g\u00f6re 404 Not Found, sunucunun istenen kayna\u011f\u0131 bulamad\u0131\u011f\u0131n\u0131 g\u00f6steren bir HTTP durum [&hellip;]<\/p>\n","protected":false},"author":100,"featured_media":90698,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,48],"tags":[],"class_list":["post-90709","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji","category-yazilim"],"_links":{"self":[{"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/posts\/90709","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/users\/100"}],"replies":[{"embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/comments?post=90709"}],"version-history":[{"count":1,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/posts\/90709\/revisions"}],"predecessor-version":[{"id":90715,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/posts\/90709\/revisions\/90715"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/media\/90698"}],"wp:attachment":[{"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/media?parent=90709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/categories?post=90709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.indir.com\/haber\/wp-json\/wp\/v2\/tags?post=90709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}