{"id":2878,"date":"2026-10-15T10:00:00","date_gmt":"2026-10-15T07:00:00","guid":{"rendered":"https:\/\/narhost.com\/destek\/?p=2878"},"modified":"2026-10-14T01:13:19","modified_gmt":"2026-10-13T22:13:19","slug":"err-http2-protocol-error-hatasi","status":"publish","type":"post","link":"https:\/\/narhost.com\/destek\/err-http2-protocol-error-hatasi\/","title":{"rendered":"ERR_HTTP2_PROTOCOL_ERROR Hatas\u0131 Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr"},"content":{"rendered":"<p class=\"kb-dogrulama\">Son g\u00f6zden ge\u00e7irme: Ekim 2026 \u00b7 HTTP\/2 standard\u0131 (RFC 9113) ve Google Chrome yard\u0131m belgelerine g\u00f6re<\/p>\n<div id=\"hizli-cozum\" class=\"ai-box ai-box--cozum\">\n<p class=\"ai-box-title\">H\u0131zl\u0131 \u00e7\u00f6z\u00fcm<\/p>\n<p><code>ERR_HTTP2_PROTOCOL_ERROR<\/code> (aramalarda ERR HTTP2 PROTOCOL ERROR olarak da yaz\u0131l\u0131r), taray\u0131c\u0131 ile sunucu aras\u0131ndaki HTTP\/2 ba\u011flant\u0131s\u0131n\u0131n kurallara ayk\u0131r\u0131 bir yan\u0131t y\u00fcz\u00fcnden yar\u0131da kesildi\u011fini g\u00f6sterir. Sorun \u00e7o\u011fu zaman taray\u0131c\u0131 taraf\u0131ndad\u0131r.<\/p>\n<ol>\n<li>Sayfay\u0131 gizli pencerede a\u00e7\u0131n; a\u00e7\u0131l\u0131yorsa neden bir uzant\u0131 ya da bozuk \u00f6nbellektir.<\/li>\n<li>Taray\u0131c\u0131 \u00f6nbelle\u011fini ve \u00e7erezleri temizleyin, taray\u0131c\u0131y\u0131 g\u00fcncelleyin.<\/li>\n<li>Antivir\u00fcs yaz\u0131l\u0131m\u0131ndaki HTTPS taramas\u0131n\u0131 ve VPN&#8217;i ge\u00e7ici olarak kapat\u0131n.<\/li>\n<li>Hata yaln\u0131z sizin sitenizde ve her cihazda \u00e7\u0131k\u0131yorsa sunucu hata g\u00fcnl\u00fc\u011f\u00fcne bak\u0131n.<\/li>\n<\/ol>\n<\/div>\n<table class=\"kb-uyg\">\n<tr>\n<th>Panel<\/th>\n<td>Taray\u0131c\u0131 (Chrome, Edge, Opera); site sahibi i\u00e7in cPanel<\/td>\n<\/tr>\n<tr>\n<th>Sistem<\/th>\n<td>Windows, macOS, Android; payla\u015f\u0131ml\u0131 hosting<\/td>\n<\/tr>\n<tr>\n<th>Yetki<\/th>\n<td>Ziyaret\u00e7i ya da cPanel kullan\u0131c\u0131s\u0131<\/td>\n<\/tr>\n<tr>\n<th>Narhost \u00fcr\u00fcn\u00fc<\/th>\n<td><a href=\"https:\/\/narhost.com\/web-hosting\" title=\"Narhost Web Hosting paketleri\">Web Hosting<\/a><\/td>\n<\/tr>\n<\/table>\n<div class=\"kb-once\">\n<p class=\"label\">Ba\u015flamadan \u00f6nce<\/p>\n<ul>\n<li>Hatan\u0131n tek sitede mi her sitede mi \u00e7\u0131kt\u0131\u011f\u0131n\u0131 not edin; her sitede \u00e7\u0131k\u0131yorsa sorun kesinlikle sizin cihaz\u0131n\u0131zdad\u0131r.<\/li>\n<li>Ayn\u0131 sayfay\u0131 telefonunuzdan mobil veriyle a\u00e7may\u0131 deneyin; a\u00e7\u0131l\u0131yorsa sunucu sa\u011flamd\u0131r.<\/li>\n<li>Site sahibiyseniz hatan\u0131n hangi sayfada ve hangi i\u015flemde \u00e7\u0131kt\u0131\u011f\u0131n\u0131 yaz\u0131n (dosya y\u00fckleme, form g\u00f6nderme, belirli bir sayfa).<\/li>\n<\/ul>\n<\/div>\n<h2>ERR HTTP2 PROTOCOL ERROR neden olur<\/h2>\n<p>HTTP\/2, taray\u0131c\u0131 ile sunucunun tek ba\u011flant\u0131 \u00fczerinden bir\u00e7ok iste\u011fi ayn\u0131 anda ta\u015f\u0131d\u0131\u011f\u0131 protokold\u00fcr. <a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc9113\" title=\"RFC 9113 \u2014 HTTP\/2 protokol standard\u0131\" target=\"_blank\" rel=\"noopener\">RFC 9113<\/a> bu ak\u0131\u015f\u0131n kurallar\u0131n\u0131 tan\u0131mlar; taraflardan biri kurala uymayan bir \u00e7er\u00e7eve ya da ba\u015fl\u0131k g\u00f6nderirse ba\u011flant\u0131 protokol hatas\u0131yla kapat\u0131l\u0131r. Taray\u0131c\u0131 bunu <code>ERR_HTTP2_PROTOCOL_ERROR<\/code> olarak g\u00f6sterir.<\/p>\n<p>Ziyaret\u00e7i taraf\u0131ndaki nedenler: istekleri de\u011fi\u015ftiren taray\u0131c\u0131 uzant\u0131lar\u0131, HTTPS trafi\u011fini araya girerek tarayan g\u00fcvenlik yaz\u0131l\u0131mlar\u0131, bozulmu\u015f \u00f6nbellek ve eski taray\u0131c\u0131 s\u00fcr\u00fcm\u00fc. Site taraf\u0131ndaki nedenler: PHP&#8217;nin yan\u0131t\u0131 yar\u0131da keserek hata vermesi, ge\u00e7ersiz karakter ta\u015f\u0131yan ya da \u00e7ok b\u00fcy\u00fck yan\u0131t ba\u015fl\u0131klar\u0131, araya giren CDN ya da g\u00fcvenlik duvar\u0131n\u0131n yan\u0131t\u0131 kesmesi.<\/p>\n<figure class=\"nh-sema\"><img src=\"https:\/\/narhost.com\/destek\/wp-content\/uploads\/2026\/10\/err-http2-protocol-error-hatasi-sema-narhost.webp\" alt=\"err http2 protocol error te\u015fhis \u015femas\u0131 \u2014 gizli pencere, ba\u015fka cihaz, hata g\u00fcnl\u00fc\u011f\u00fc ve eklenti kontrol\u00fc\" width=\"1200\" height=\"500\" loading=\"lazy\" decoding=\"async\"><figcaption>Gizli pencerede ve ba\u015fka cihazda a\u00e7\u0131lan sayfa sunucunun sa\u011flam oldu\u011funu g\u00f6sterir.<\/figcaption><\/figure>\n<h2>Ziyaret\u00e7iyseniz ad\u0131m ad\u0131m \u00e7\u00f6z\u00fcm<\/h2>\n<ol class=\"kb-adimlar\">\n<li><strong>Gizli pencerede deneyin.<\/strong> Chrome&#8217;da <code>Ctrl + Shift + N<\/code> ile gizli pencere a\u00e7\u0131p adresi yeniden girin.\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: sayfa a\u00e7\u0131l\u0131yorsa neden uzant\u0131 ya da \u00f6nbellektir; sonraki iki ad\u0131m\u0131 uygulay\u0131n. A\u00e7\u0131lm\u0131yorsa d\u00f6rd\u00fcnc\u00fc ad\u0131ma ge\u00e7in.<\/p>\n<\/li>\n<li><strong>\u00d6nbelle\u011fi ve \u00e7erezleri temizleyin.<\/strong> Chrome&#8217;da <code>Ctrl + Shift + Delete<\/code> tu\u015flar\u0131na bas\u0131n, zaman aral\u0131\u011f\u0131n\u0131 &#8220;T\u00fcm zamanlar&#8221; se\u00e7in, \u00f6nbelle\u011fe al\u0131nan dosyalar\u0131 ve \u00e7erezleri i\u015faretleyip silin. Ad\u0131mlar\u0131n resm\u00ee anlat\u0131m\u0131 <a href=\"https:\/\/support.google.com\/chrome\/answer\/2392709\" title=\"Google Chrome Yard\u0131m \u2014 \u00f6nbelle\u011fi ve \u00e7erezleri temizleme\" target=\"_blank\" rel=\"noopener\">Chrome yard\u0131m sayfas\u0131nda<\/a>.\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: taray\u0131c\u0131 sayfan\u0131n b\u00fct\u00fcn dosyalar\u0131n\u0131 sunucudan yeniden ister.<\/p>\n<\/li>\n<li><strong>Uzant\u0131lar\u0131 kapat\u0131n.<\/strong> Adres \u00e7ubu\u011funa <code>chrome:\/\/extensions<\/code> yaz\u0131n, b\u00fct\u00fcn uzant\u0131lar\u0131 kapat\u0131p sayfay\u0131 deneyin; a\u00e7\u0131l\u0131rsa uzant\u0131lar\u0131 birer birer a\u00e7arak sorunlu olan\u0131 bulun. Reklam engelleyiciler ve indirme y\u00f6neticileri en s\u0131k nedenlerdir.<\/li>\n<li><strong>G\u00fcvenlik yaz\u0131l\u0131m\u0131n\u0131 ve VPN&#8217;i ge\u00e7ici kapat\u0131n.<\/strong> Antivir\u00fcs programlar\u0131ndaki &#8220;HTTPS tarama&#8221; ya da &#8220;web kalkan\u0131&#8221; \u00f6zelli\u011fi ba\u011flant\u0131n\u0131n aras\u0131na girer. \u00d6zelli\u011fi kapat\u0131p sayfay\u0131 deneyin; sorun buysa siteyi o yaz\u0131l\u0131mda istisna listesine ekleyin.<\/li>\n<li><strong>Taray\u0131c\u0131y\u0131 g\u00fcncelleyin ve ba\u015fka a\u011f deneyin.<\/strong> Adres \u00e7ubu\u011funa <code>chrome:\/\/settings\/help<\/code> yazarak g\u00fcncellemeyi ba\u015flat\u0131n. Ard\u0131ndan ayn\u0131 sayfay\u0131 telefonunuzun mobil verisiyle a\u00e7\u0131n.\n<p class=\"kb-cikti\">Beklenen sonu\u00e7: ba\u015fka a\u011fda a\u00e7\u0131l\u0131yorsa sorun modeminizde ya da internet sa\u011flay\u0131c\u0131n\u0131z\u0131n a\u011f\u0131ndad\u0131r; modemi yeniden ba\u015flat\u0131n.<\/p>\n<\/li>\n<\/ol>\n<h2>Site sahibiyseniz bak\u0131lacak yerler<\/h2>\n<ol class=\"kb-adimlar\">\n<li><strong>cPanel \u2192 \u00d6l\u00e7\u00fcmler \u2192 Hatalar<\/strong> sayfas\u0131nda hatan\u0131n \u00e7\u0131kt\u0131\u011f\u0131 ana denk gelen sat\u0131rlar\u0131 okuyun. PHP&#8217;nin \u00f6l\u00fcmc\u00fcl hatayla durdu\u011fu istekte yan\u0131t yar\u0131m kal\u0131r ve taray\u0131c\u0131 protokol hatas\u0131 g\u00f6sterir. G\u00fcnl\u00fc\u011f\u00fcn okunu\u015fu <a href=\"https:\/\/narhost.com\/destek\/cpanel-hata-gunlukleri-inceleme\/\" title=\"cPanel Hata G\u00fcnl\u00fckleri \u0130nceleme \u2014 Narhost Destek Merkezi\">cPanel hata g\u00fcnl\u00fckleri inceleme<\/a> kart\u0131nda.<\/li>\n<li><strong>Son eklenen eklentiyi ve .htaccess kurallar\u0131n\u0131 kontrol edin.<\/strong> Yan\u0131t ba\u015fl\u0131\u011f\u0131 ekleyen g\u00fcvenlik ve \u00f6nbellek eklentileri ge\u00e7ersiz ba\u015fl\u0131k \u00fcretebilir. Eklentiyi kapat\u0131p deneyin; y\u00f6ntem <a href=\"https:\/\/narhost.com\/destek\/adim-adim-wordpresste-sorunlu-eklenti-nasil-bulunur\/\" title=\"WordPress&#039;te Sorunlu Eklenti Nas\u0131l Bulunur \u2014 Narhost Destek Merkezi\">sorunlu eklenti nas\u0131l bulunur<\/a> kart\u0131nda.<\/li>\n<li><strong>CDN kullan\u0131yorsan\u0131z ge\u00e7ici olarak devre d\u0131\u015f\u0131 b\u0131rak\u0131n.<\/strong> Hata CDN kapal\u0131yken kayboluyorsa sorun CDN ile sunucu aras\u0131ndaki ba\u011flant\u0131dad\u0131r.<\/li>\n<li><strong>Disk alan\u0131n\u0131 kontrol edin.<\/strong> Dolu diskte PHP oturum ve \u00f6nbellek dosyas\u0131 yazamaz, yan\u0131t yar\u0131da kesilir.<\/li>\n<\/ol>\n<h2>Do\u011frulama<\/h2>\n<div class=\"success-box\">\n<p class=\"label\">Sonu\u00e7<\/p>\n<p>Sayfay\u0131 normal pencerede a\u00e7\u0131p <code>F12<\/code> ile geli\u015ftirici ara\u00e7lar\u0131n\u0131 a\u00e7\u0131n, A\u011f sekmesinde sayfay\u0131 yenileyin. B\u00fct\u00fcn sat\u0131rlarda durum <code>200<\/code> ya da <code>304<\/code> g\u00f6r\u00fcn\u00fcyor ve k\u0131rm\u0131z\u0131 sat\u0131r kalmad\u0131ysa sorun giderilmi\u015ftir.<\/p>\n<\/div>\n<h2>H\u00e2l\u00e2 \u00e7\u00f6z\u00fclmediyse<\/h2>\n<ul>\n<li><strong>Hata yaln\u0131z dosya y\u00fcklerken \u00e7\u0131k\u0131yor.<\/strong> Y\u00fckleme s\u0131n\u0131r\u0131 a\u015f\u0131l\u0131yordur; de\u011ferler <a href=\"https:\/\/narhost.com\/destek\/cpanel-php-ini-ayarlari\/\" title=\"cPanel&#039;de php.ini Ayarlar\u0131 \u2014 Narhost Destek Merkezi\">cPanel php.ini ayarlar\u0131<\/a> kart\u0131ndan b\u00fcy\u00fct\u00fcl\u00fcr.<\/li>\n<li><strong>Sayfa bazen a\u00e7\u0131l\u0131yor bazen a\u00e7\u0131lm\u0131yor.<\/strong> Kaynak s\u0131n\u0131r\u0131na dayan\u0131l\u0131yor olabilir; <a href=\"https:\/\/narhost.com\/destek\/resource-limit-is-reached-508-hatasi\/\" title=\"Resource Limit Is Reached 508 Hatas\u0131 Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr \u2014 Narhost Destek Merkezi\">508 kaynak s\u0131n\u0131r\u0131 hatas\u0131<\/a> kart\u0131na bak\u0131n.<\/li>\n<li><strong>Taray\u0131c\u0131 farkl\u0131 bir hata g\u00f6steriyor.<\/strong> Ba\u011flant\u0131 tamamen kurulam\u0131yorsa <a href=\"https:\/\/narhost.com\/destek\/err-connection-reset-hatasi\/\" title=\"ERR_CONNECTION_RESET Hatas\u0131 Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr \u2014 Narhost Destek Merkezi\">ERR_CONNECTION_RESET hatas\u0131<\/a> kart\u0131ndaki ad\u0131mlar ge\u00e7erlidir.<\/li>\n<\/ul>\n<div class=\"cta-box\">\n<p class=\"label\">Narhost deste\u011fi<\/p>\n<p>Talebe \u015funlar\u0131 ekleyin: alan ad\u0131, hatan\u0131n \u00e7\u0131kt\u0131\u011f\u0131 sayfan\u0131n tam adresi, tarih ve saat, hatan\u0131n her cihazda \u00e7\u0131k\u0131p \u00e7\u0131kmad\u0131\u011f\u0131, hata g\u00fcnl\u00fc\u011f\u00fcnden ilgili sat\u0131r.<\/p>\n<p><a class=\"cta-btn\" href=\"https:\/\/narhost.com\/submitticket.php\" title=\"Narhost destek talebi a\u00e7\">Destek talebi a\u00e7<\/a><\/div>\n<div class=\"kb-ilgili\">\n<p class=\"label\">Sonraki ad\u0131mlar<\/p>\n<ul>\n<li><a href=\"https:\/\/narhost.com\/destek\/site-bazen-acilmiyorsa-ne-yapilmali\/\" title=\"Site A\u00e7\u0131lm\u0131yor, Ad\u0131m Ad\u0131m Te\u015fhis Rehberi \u2014 Narhost Destek Merkezi\">Site a\u00e7\u0131lm\u0131yor, ad\u0131m ad\u0131m te\u015fhis rehberi<\/a><\/li>\n<li><a href=\"https:\/\/narhost.com\/destek\/err-connection-timed-out-hatasi-nasil-cozulur\/\" title=\"ERR_CONNECTION_TIMED_OUT Hatas\u0131 Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr \u2014 Narhost Destek Merkezi\">ERR_CONNECTION_TIMED_OUT hatas\u0131<\/a><\/li>\n<li><a href=\"https:\/\/narhost.com\/destek\/err-empty-response-hatasi-nasil-cozulur\/\" title=\"ERR_EMPTY_RESPONSE Hatas\u0131 Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr \u2014 Narhost Destek Merkezi\">ERR_EMPTY_RESPONSE hatas\u0131<\/a><\/li>\n<\/ul>\n<\/div>\n<div class=\"kb-faq\">\n<h2>S\u0131k\u00e7a sorulan sorular<\/h2>\n<h3>ERR_HTTP2_PROTOCOL_ERROR ne demek?<\/h3>\n<p>Taray\u0131c\u0131n\u0131n sunucuyla kurdu\u011fu HTTP\/2 ba\u011flant\u0131s\u0131nda protokol kurallar\u0131na uymayan bir yan\u0131t ald\u0131\u011f\u0131n\u0131 ve ba\u011flant\u0131y\u0131 kapatt\u0131\u011f\u0131n\u0131 g\u00f6sterir. Site kapal\u0131 demek de\u011fildir; ayn\u0131 sayfa ba\u015fka taray\u0131c\u0131da ya da cihazda \u00e7o\u011fu zaman a\u00e7\u0131l\u0131r.<\/p>\n<h3>Hata yaln\u0131z Chrome&#8217;da \u00e7\u0131k\u0131yor, neden?<\/h3>\n<p>Chrome, Edge ve Opera ayn\u0131 altyap\u0131y\u0131 kulland\u0131\u011f\u0131 i\u00e7in ayn\u0131 hata ad\u0131n\u0131 g\u00f6sterir. Firefox ayn\u0131 durumu farkl\u0131 bir iletiyle bildirir. Yaln\u0131z tek taray\u0131c\u0131da \u00e7\u0131kmas\u0131, nedenin o taray\u0131c\u0131n\u0131n uzant\u0131lar\u0131 ya da \u00f6nbelle\u011fi oldu\u011funu g\u00f6sterir.<\/p>\n<h3>Bu hata sitemin s\u0131ralamas\u0131n\u0131 etkiler mi?<\/h3>\n<p>Hata yaln\u0131z sizin taray\u0131c\u0131n\u0131zda \u00e7\u0131k\u0131yorsa etkilemez. B\u00fct\u00fcn ziyaret\u00e7ilerde ve arama motoru taray\u0131c\u0131s\u0131nda \u00e7\u0131k\u0131yorsa sayfalar taranamaz; bu durumda sunucu taraf\u0131ndaki neden hemen bulunmal\u0131d\u0131r.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>ERR_HTTP2_PROTOCOL_ERROR hatas\u0131n\u0131n nedenleri ve \u00e7\u00f6z\u00fcm\u00fc: gizli pencere testi, \u00f6nbellek temizleme, uzant\u0131 ve antivir\u00fcs kontrol\u00fc; site sahibi i\u00e7in cPanel hata g\u00fcnl\u00fc\u011f\u00fc, eklenti, CDN ve disk alan\u0131 denetimi.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[305,306],"class_list":["post-2878","post","type-post","status-publish","format-standard","hentry","category-web-hosting","tag-tarayici-hatasi","tag-chrome"],"meta_box":[],"_links":{"self":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/2878","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/comments?post=2878"}],"version-history":[{"count":1,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/2878\/revisions"}],"predecessor-version":[{"id":2883,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/2878\/revisions\/2883"}],"wp:attachment":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/media?parent=2878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/categories?post=2878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/tags?post=2878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}