{"id":1906,"date":"2026-04-08T09:12:55","date_gmt":"2026-04-08T06:12:55","guid":{"rendered":"https:\/\/allinonewpsettings.com\/blog\/?p=1906"},"modified":"2026-08-02T12:08:44","modified_gmt":"2026-08-02T12:08:44","slug":"wordpress-te-javascript-defer-ve-delay-arasindaki-fark-nedir","status":"publish","type":"post","link":"https:\/\/allinonewpsettings.com\/blog\/tr\/wordpress-te-javascript-defer-ve-delay-arasindaki-fark-nedir\/","title":{"rendered":"WordPress&#8217;te JavaScript Defer ve Delay Aras\u0131ndaki Fark Nedir?"},"content":{"rendered":"<p><code>defer<\/code> ve JavaScript geciktirme ayn\u0131 \u015fey de\u011fildir. Defer edilen d\u0131\u015f betik HTML ayr\u0131\u015ft\u0131r\u0131l\u0131rken indirilebilir ve belge haz\u0131r oldu\u011funda \u00e7al\u0131\u015f\u0131r. \u201cDelay\u201d ise performans ara\u00e7lar\u0131n\u0131n beti\u011fi belirli s\u00fcreye, kullan\u0131c\u0131 etkile\u015fimine veya ba\u015fka bir ko\u015fula kadar hi\u00e7 \u00e7al\u0131\u015ft\u0131rmamas\u0131 i\u00e7in kulland\u0131\u011f\u0131 genel bir y\u00f6ntemdir.<\/p>\n<p>Men\u00fc, form veya izin y\u00f6netimi ilk anda haz\u0131r olmal\u0131ysa agresif geciktirme i\u015flevi bozabilir. Sohbet arac\u0131 ya da zorunlu olmayan analiz kodu ise daha ge\u00e7 ba\u015flayabilir.<\/p>\n<div class=\"aiows-article-toc\" style=\"margin:28px 0;padding:20px 22px;border:1px solid #dcdcde;border-radius:12px;background:#fafafa;\">\n<strong style=\"display:block;margin-bottom:10px;font-size:18px;\">\u0130\u00e7indekiler<\/strong><\/p>\n<ol style=\"margin:0 0 0 20px;\">\n<li><a href=\"#definition\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">Bu konu ne anlama gelir?<\/a><\/li>\n<li><a href=\"#example\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">Ger\u00e7ek\u00e7i bir WordPress \u00f6rne\u011fi<\/a><\/li>\n<li><a href=\"#why\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">Neden \u00f6nemlidir ve ne zaman kullan\u0131l\u0131r?<\/a><\/li>\n<li><a href=\"#beginner\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">Yeni ba\u015flayanlar i\u00e7in anla\u015f\u0131l\u0131r yol<\/a><\/li>\n<li><a href=\"#advanced\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">\u0130leri teknik yol<\/a><\/li>\n<li><a href=\"#risks\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">Riskler, s\u0131k hatalar, yedekleme ve geri alma<\/a><\/li>\n<li><a href=\"#aiows-module\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">AIOWS nas\u0131l yard\u0131mc\u0131 olur?<\/a><\/li>\n<li><a href=\"#related\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">\u0130lgili AIOWS yaz\u0131lar\u0131<\/a><\/li>\n<li><a href=\"#conclusion\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">Sonu\u00e7 ve \u00f6nerilen yol<\/a><\/li>\n<li><a href=\"#sources\" style=\"color:inherit;text-decoration:underline;text-underline-offset:2px;\">Resm\u00ee kaynaklar<\/a><\/li>\n<\/ol>\n<\/div>\n<h2 id=\"definition\" style=\"scroll-margin-top:96px;\">Bu konu ne anlama gelir?<\/h2>\n<p>Klasik d\u0131\u015f betikte <code>defer<\/code>, indirmeyi HTML ayr\u0131\u015ft\u0131rmas\u0131na paralel y\u00fcr\u00fct\u00fcr ve betikleri belge s\u0131ras\u0131n\u0131 koruyarak ayr\u0131\u015ft\u0131rma sonras\u0131nda \u00e7al\u0131\u015ft\u0131r\u0131r. Delay standart bir HTML niteli\u011fi de\u011fildir; eklenti veya \u00f6zel kodun se\u00e7ti\u011fi tetikleyiciye ba\u011fl\u0131d\u0131r.<\/p>\n<ul>\n<li><code>async<\/code> beti\u011fi haz\u0131r oldu\u011funda \u00e7al\u0131\u015ft\u0131r\u0131r ve s\u0131ray\u0131 garanti etmez.<\/li>\n<li>ES mod\u00fclleri varsay\u0131lan olarak defer benzeri davran\u0131r ancak ba\u011f\u0131ml\u0131l\u0131k grafi\u011fine sahiptir.<\/li>\n<li>G\u00fcvenli se\u00e7im, kodun hangi anda ve hangi ba\u011f\u0131ml\u0131l\u0131ktan sonra gerekli oldu\u011funa ba\u011fl\u0131d\u0131r.<\/li>\n<\/ul>\n<h2 id=\"example\" style=\"scroll-margin-top:96px;\">Ger\u00e7ek\u00e7i bir WordPress \u00f6rne\u011fi<\/h2>\n<p>Bir tema gezinme beti\u011fini defer ile y\u00fckledi\u011finde men\u00fc DOM haz\u0131r olur olmaz \u00e7al\u0131\u015f\u0131yor. Ayn\u0131 betik \u201cilk etkile\u015fime kadar geciktir\u201d listesine eklenince klavye kullan\u0131c\u0131s\u0131 men\u00fcy\u00fc a\u00e7am\u0131yor; \u00e7\u00fcnk\u00fc geciktirme arac\u0131n\u0131n dinledi\u011fi ilk etkile\u015fim men\u00fcn\u00fcn kendi tu\u015f olay\u0131yla \u00e7ak\u0131\u015f\u0131yor.<\/p>\n<p>Men\u00fc beti\u011fi delay listesinden \u00e7\u0131kar\u0131l\u0131p defer b\u0131rak\u0131l\u0131yor. Sohbet widget&#8217;\u0131 ise kullan\u0131c\u0131 sayfada birka\u00e7 saniye kald\u0131\u011f\u0131nda y\u00fckleniyor. B\u00f6ylece kritik gezinme korunurken ba\u015flang\u0131\u00e7taki gereksiz JavaScript i\u015fi azal\u0131yor.<\/p>\n<h2 id=\"why\" style=\"scroll-margin-top:96px;\">Neden \u00f6nemlidir ve ne zaman kullan\u0131l\u0131r?<\/h2>\n<p>Yanl\u0131\u015f zamanlama LCP&#8217;den \u00e7ok etkile\u015fim g\u00fcvenilirli\u011fini etkileyebilir. \u0130lk t\u0131klaman\u0131n kaybolmas\u0131, izin tercihlerinin ge\u00e7 uygulanmas\u0131 veya form dinleyicisinin ba\u011flanmamas\u0131 kullan\u0131c\u0131y\u0131 do\u011frudan etkiler.<\/p>\n<p>Defer, indirme ve \u00e7al\u0131\u015ft\u0131rma s\u0131ras\u0131n\u0131 d\u00fczenlemek i\u00e7in; delay ise ba\u015flang\u0131\u00e7ta gerekli olmayan kodu ertelemek i\u00e7in uygundur. Kritik aray\u00fcz\u00fc, eri\u015filebilirli\u011fi, g\u00fcvenli\u011fi veya sat\u0131n alma i\u015flemini y\u00f6neten betikleri yaln\u0131z \u00f6l\u00e7\u00fclm\u00fc\u015f bir gerek\u00e7eyle geciktirin.<\/p>\n<h2 id=\"beginner\" style=\"scroll-margin-top:96px;\">Yeni ba\u015flayanlar i\u00e7in anla\u015f\u0131l\u0131r yol<\/h2>\n<ol>\n<li>Betikleri men\u00fc, form, \u00f6deme, analiz ve \u00fc\u00e7\u00fcnc\u00fc taraf ara\u00e7lar olarak s\u0131n\u0131fland\u0131r\u0131n.<\/li>\n<li>\u0130lk kullan\u0131c\u0131 eylemi i\u00e7in gereken kodu delay listesinden \u00e7\u0131kar\u0131n.<\/li>\n<li>Ba\u011f\u0131ms\u0131z ve DOM sonras\u0131nda \u00e7al\u0131\u015fabilen d\u0131\u015f betiklerde defer&#8217;i deneyin.<\/li>\n<li>\u0130ste\u011fe ba\u011fl\u0131 ara\u00e7lar\u0131 a\u00e7\u0131k bir s\u00fcre veya etkile\u015fim tetikleyicisiyle geciktirin.<\/li>\n<li>Klavye, dokunma, form, sepet ve etkile\u015fimsiz oturum senaryolar\u0131n\u0131 s\u0131nay\u0131n.<\/li>\n<\/ol>\n<h2 id=\"advanced\" style=\"scroll-margin-top:96px;\">\u0130leri teknik yol<\/h2>\n<p>Ger\u00e7ek \u00e7al\u0131\u015fma s\u0131ras\u0131n\u0131 Performance paneli ve a\u011f zaman \u00e7izelgesiyle inceleyin. Sat\u0131r i\u00e7i ba\u015flatma kodu, ba\u011f\u0131ml\u0131l\u0131\u011f\u0131 defer edildi\u011finde ondan \u00f6nce \u00e7al\u0131\u015fabilir; <code>DOMContentLoaded<\/code> kullanmak her s\u0131ra hatas\u0131n\u0131 \u00e7\u00f6zmez.<\/p>\n<ul>\n<li>Ba\u011f\u0131ml\u0131l\u0131k grafi\u011fini ve WordPress enqueue s\u0131ras\u0131n\u0131 belgeleyin.<\/li>\n<li>Delay tetikleyicisinin klavye, dokunma ve programl\u0131 etkile\u015fimleri kapsad\u0131\u011f\u0131n\u0131 do\u011frulay\u0131n.<\/li>\n<li>\u0130zin platformunun engelledi\u011fi kodu performans gecikmesiyle kar\u0131\u015ft\u0131rmay\u0131n.<\/li>\n<li>Makul bir maksimum bekleme s\u00fcresi ve betik y\u00fcklenmezse kullan\u0131lacak alternatif belirleyin.<\/li>\n<\/ul>\n<h2 id=\"risks\" style=\"scroll-margin-top:96px;\">Riskler, s\u0131k hatalar, yedekleme ve geri alma<\/h2>\n<p>En s\u0131k hata, b\u00fct\u00fcn JavaScript dosyalar\u0131na ayn\u0131 kural\u0131 uygulamakt\u0131r. Boyutu k\u00fc\u00e7\u00fck olsa bile kritik bir betik ilk etkile\u015fimden \u00f6nce haz\u0131r olmal\u0131d\u0131r; b\u00fcy\u00fck bir sohbet paketi ise sayfa a\u00e7\u0131l\u0131r a\u00e7\u0131lmaz \u00e7al\u0131\u015fmak zorunda de\u011fildir.<\/p>\n<ul>\n<li>Defer, delay ve k\u00fc\u00e7\u00fcltmeyi ayn\u0131 de\u011fi\u015fiklikte a\u00e7may\u0131n.<\/li>\n<li>Yaln\u0131z fare t\u0131klamas\u0131n\u0131 test etmeyin; klavye ve dokunmay\u0131 da kapsay\u0131n.<\/li>\n<li>Analitik gecikiyorsa ilk etkile\u015fim verisinin kaybolup kaybolmad\u0131\u011f\u0131n\u0131 de\u011ferlendirin.<\/li>\n<\/ul>\n<p>De\u011fi\u015fiklikten \u00f6nce betik ayar\u0131n\u0131 kaydedin. Kritik i\u015flev gecikirse yaln\u0131z ilgili zamanlama kural\u0131n\u0131 kapat\u0131p \u00f6nbelle\u011fi yenileyin.<\/p>\n<section aria-labelledby=\"aiows-module\" class=\"aiows-blog-cta\" style=\"margin:38px 0;padding:28px;border:1px solid #cddcff;border-radius:16px;background:#f6f9ff;\">\n<p style=\"margin:0 0 8px;font-size:13px;font-weight:800;letter-spacing:.05em;color:#1746a2;\">AIOWS nas\u0131l yard\u0131mc\u0131 olur?<\/p>\n<h2 id=\"aiows-module\" style=\"margin:0 0 14px;scroll-margin-top:96px;\">AIOWS \u00d6nbellek Y\u00f6neticisi<\/h2>\n<p>AIOWS \u00d6nbellek Y\u00f6neticisi, desteklenen JavaScript optimizasyon ayarlar\u0131n\u0131 tek yerde y\u00f6netmeye yard\u0131mc\u0131 olur. Defer ile delay aras\u0131ndaki fark\u0131 uygulamada korumak i\u00e7in \u00f6nce betikleri i\u015flevlerine g\u00f6re ay\u0131r\u0131n; men\u00fc, form ve \u00f6deme koduyla sohbet veya analiz kodunu ayn\u0131 listede de\u011ferlendirmeyin.<\/p>\n<p>Desteklenen ayar\u0131 dar kapsamda uygulad\u0131ktan sonra \u00f6nbelle\u011fi yenileyin ve temiz taray\u0131c\u0131da ger\u00e7ek kullan\u0131c\u0131 ad\u0131mlar\u0131n\u0131 s\u0131nay\u0131n. Defer edilen betik DOM haz\u0131r oldu\u011funda \u00e7al\u0131\u015fmal\u0131, geciktirilen iste\u011fe ba\u011fl\u0131 ara\u00e7 ise belirlenen tetikleyicide devreye girmelidir. \u0130lk t\u0131klama, klavye ile gezinme, izin se\u00e7imi, form g\u00f6nderimi ve sepet i\u015flemi kaybolmamal\u0131d\u0131r. Etkile\u015fim olmadan a\u00e7\u0131k kalan sayfada da geciktirilmi\u015f kodun beklenen maksimum s\u00fcrede y\u00fcklenip y\u00fcklenmedi\u011fini kontrol edin.<\/p>\n<p>AIOWS, yanl\u0131\u015f yaz\u0131lm\u0131\u015f ba\u011f\u0131ml\u0131l\u0131klar\u0131 veya \u00fc\u00e7\u00fcnc\u00fc taraf kodun zamanlama varsay\u0131mlar\u0131n\u0131 onaramaz. Tema ya da eklenti sat\u0131r i\u00e7i ba\u015flatmay\u0131 yanl\u0131\u015f s\u0131rada \u00fcretiyorsa kaynak d\u00fczeyinde d\u00fczeltme gerekir. Mod\u00fcl bu s\u0131n\u0131rlar i\u00e7inde se\u00e7enekleri g\u00f6r\u00fcn\u00fcr tutmay\u0131, tek de\u011fi\u015fkenle test yapmay\u0131 ve i\u015flev bozulursa \u00f6nceki ayara d\u00f6nmeyi kolayla\u015ft\u0131r\u0131r.<\/p>\n<p style=\"margin-bottom:0;\"><a href=\"https:\/\/allinonewpsettings.com\/tr\/ozellikler\/onbellek-yoneticisi\" rel=\"noopener noreferrer\" style=\"display:inline-block;padding:11px 17px;margin:6px 8px 0 0;border-radius:8px;background:#1557ff;color:#fff;text-decoration:none;font-weight:700;\" target=\"_blank\">AIOWS \u00d6nbellek Y\u00f6neticisi&#8217;ni inceleyin<\/a><a href=\"https:\/\/allinonewpsettings.com\/tr\/fiyatlandirma\" rel=\"noopener noreferrer\" style=\"display:inline-block;padding:10px 16px;margin:6px 8px 0 0;border:1px solid #1557ff;border-radius:8px;color:#1557ff;text-decoration:none;font-weight:700;background:#fff;\" target=\"_blank\">AIOWS planlar\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131r\u0131n<\/a><\/p>\n<\/section>\n<h2 id=\"related\" style=\"scroll-margin-top:96px;\">\u0130lgili AIOWS yaz\u0131lar\u0131<\/h2>\n<ul>\n<li><a href=\"https:\/\/allinonewpsettings.com\/blog\/tr\/javascript-kucultme-wordpress-sitesini-bozdu-nedenler-ve-cozumler\/\" target=\"_blank\" rel=\"noopener noreferrer\">JavaScript K\u00fc\u00e7\u00fcltme WordPress Sitesini Bozduysa: Nedenler ve \u00c7\u00f6z\u00fcmler<\/a><\/li>\n<li><a href=\"https:\/\/allinonewpsettings.com\/blog\/tr\/wordpress-lazy-loading-dogru-sekilde-nasil-etkinlestirilir\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress&#8217;te Lazy Loading Nas\u0131l Do\u011fru Etkinle\u015ftirilir?<\/a><\/li>\n<li><a href=\"https:\/\/allinonewpsettings.com\/blog\/tr\/wordpress-lcp-gorseli-neden-lazy-load-edilmemeli\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress LCP G\u00f6rseli Neden Lazy Load Edilmemeli?<\/a><\/li>\n<\/ul>\n<h2 id=\"conclusion\" style=\"scroll-margin-top:96px;\">Sonu\u00e7 ve \u00f6nerilen yol<\/h2>\n<p>DOM sonras\u0131nda \u00e7al\u0131\u015fmas\u0131 yeterli olan s\u0131ral\u0131 d\u0131\u015f betiklerde defer kullan\u0131n. Delay&#8217;i yaln\u0131z ilk g\u00f6r\u00fcn\u00fcm ve ilk etkile\u015fim i\u00e7in gerekli olmayan kodlara ay\u0131r\u0131n. Yay\u0131ndan \u00f6nce klavye, dokunma, form, sepet ve etkile\u015fimsiz oturumlar\u0131 ger\u00e7ek cihazlarda s\u0131nay\u0131n.<\/p>\n<h2 id=\"sources\" style=\"scroll-margin-top:96px;\">Resm\u00ee kaynaklar<\/h2>\n<ul class=\"aiows-article-sources\">\n<li><a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/HTML\/Reference\/Elements\/script\" target=\"_blank\" rel=\"noopener noreferrer\">MDN script \u00f6\u011fesi referans\u0131<\/a><\/li>\n<li><a href=\"https:\/\/developer.wordpress.org\/advanced-administration\/performance\/cache\/\" target=\"_blank\" rel=\"noopener noreferrer\">WordPress \u00f6nbellekleme belgesi<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Defer ile delay y\u00f6ntemlerinin JavaScript&#8217;i ne zaman indirip \u00e7al\u0131\u015ft\u0131rd\u0131\u011f\u0131n\u0131, hangi betiklerde g\u00fcvenli oldu\u011funu ve WordPress&#8217;te nas\u0131l s\u0131nanaca\u011f\u0131n\u0131 \u00f6\u011frenin.<\/p>\n","protected":false},"author":1,"featured_media":7592,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[90],"tags":[],"class_list":["post-1906","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-onbellek-yoneticisi"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>WordPress&#039;te JavaScript Defer ve Delay Fark\u0131<\/title>\n<meta name=\"description\" content=\"WordPress JavaScript defer ve delay fark\u0131: Se\u00e7enekleri kar\u015f\u0131la\u015ft\u0131r\u0131n, siteye uygun yolu belirleyin, sonucu do\u011frulay\u0131n ve g\u00fcvenli geri d\u00f6n\u00fc\u015f yolunu koruyun.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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