{"id":41103,"date":"2026-03-03T14:30:45","date_gmt":"2026-03-03T11:30:45","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/next-js-15-uygulamamiz-bir-gecede-trafiginin-%80ini-neden-kaybetti-ve-nasil-duzelttik-%f0%9f%93%89\/"},"modified":"2026-03-03T14:30:45","modified_gmt":"2026-03-03T11:30:45","slug":"next-js-15-uygulamamiz-bir-gecede-trafiginin-%80ini-neden-kaybetti-ve-nasil-duzelttik-%f0%9f%93%89","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/next-js-15-uygulamamiz-bir-gecede-trafiginin-%80ini-neden-kaybetti-ve-nasil-duzelttik-%f0%9f%93%89\/","title":{"rendered":"Next.js 15 Uygulamam\u0131z Bir Gecede Trafi\u011finin %80&#8217;ini Neden Kaybetti (Ve Nas\u0131l D\u00fczelttik) \ud83d\udcc9"},"content":{"rendered":"<h2>Next.js 15 Uygulamam\u0131z Bir Gecede Trafi\u011finin %80&#8217;ini Neden Kaybetti (Ve Nas\u0131l D\u00fczelttik) \ud83d\udcc9<\/h2>\n<p>Bir web uygulamas\u0131n\u0131n trafi\u011fini bir gecede %80 oran\u0131nda kaybetmesi, her geli\u015ftiricinin kabusudur. Next.js 15&#8217;e ge\u00e7i\u015fimiz sonras\u0131 ya\u015fad\u0131\u011f\u0131m\u0131z bu dramatik d\u00fc\u015f\u00fc\u015f, bizi derinlemesine bir incelemeye ve k\u00f6kl\u00fc \u00e7\u00f6z\u00fcmler bulmaya itti. Bu makalede, d\u00fc\u015f\u00fc\u015f\u00fcn nedenlerini, tespit s\u00fcre\u00e7lerimizi ve uygulamam\u0131z\u0131 nas\u0131l eski sa\u011fl\u0131\u011f\u0131na kavu\u015fturdu\u011fumuzu detayl\u0131ca inceleyece\u011fiz.<\/p>\n<h3>Performans D\u00fc\u015f\u00fc\u015fleri ve Optimizasyon Eksiklikleri<\/h3>\n<p>Next.js 15&#8217;e y\u00fckseltme sonras\u0131, uygulamam\u0131z\u0131n performans metriklerinde ciddi bozulmalar g\u00f6zlemledik. Bu durum, do\u011frudan kullan\u0131c\u0131 deneyimini etkileyerek trafik kayb\u0131na yol a\u00e7t\u0131. Y\u00fckleme s\u00fcrelerinin uzamas\u0131, sayfa ge\u00e7i\u015flerinin yava\u015flamas\u0131 ve etkile\u015fim gecikmeleri kullan\u0131c\u0131lar\u0131n sitemizden h\u0131zla ayr\u0131lmas\u0131na neden oldu.<\/p>\n<h4>Gereksiz Yeniden Olu\u015fturmalar ve Bile\u015fen Optimizasyonu<\/h4>\n<p>Next.js 15 ile birlikte React&#8217;\u0131n yeni \u00f6zelliklerini ve optimizasyonlar\u0131n\u0131 benimserken, baz\u0131 bile\u015fenlerimizin gereksiz yere yeniden olu\u015fturuldu\u011funu fark ettik. \u00d6zellikle b\u00fcy\u00fck ve veri yo\u011fun sayfalarda, k\u00fc\u00e7\u00fck bir prop de\u011fi\u015fikli\u011fi t\u00fcm bile\u015fen a\u011fac\u0131n\u0131n yeniden render edilmesine neden oluyordu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> <code>React.memo<\/code> ve <code>useCallback<\/code>\/<code>useMemo<\/code> hook&#8217;lar\u0131n\u0131 kullanarak bile\u015fenlerimizi ve fonksiyonlar\u0131m\u0131z\u0131 memoize ettik. Ayr\u0131ca, Context API yerine daha hedefli prop drilling veya Zustand\/Jotai gibi hafif durum y\u00f6netim k\u00fct\u00fcphanelerine y\u00f6neldik.<\/p>\n<pre><code class=\"language-jsx\">\nimport React from 'react';\n\nconst MyOptimizedComponent = React.memo(({ data }) => {\n  \/\/ Sadece 'data' de\u011fi\u015fti\u011finde render edilir\n  return (\n    <div>\n      <p>{data.title}<\/p>\n      <!-- Di\u011fer i\u00e7erik -->\n    <\/div>\n  );\n});\n\nexport default MyOptimizedComponent;\n<\/pre>\n<p><\/code><\/p>\n<h4>Resim ve Medya Optimizasyonu Sorunlar\u0131<\/h4>\n<p>Next.js'in \u00f6nceki s\u00fcr\u00fcmlerindeki <code>next\/image<\/code> bile\u015feni harika \u00e7al\u0131\u015f\u0131rken, Next.js 15'e ge\u00e7i\u015fle birlikte baz\u0131 resimlerin yanl\u0131\u015f boyutland\u0131r\u0131ld\u0131\u011f\u0131n\u0131 veya optimize edilmedi\u011fini g\u00f6rd\u00fck. \u00d6zellikle dinamik olarak y\u00fcklenen resimlerde bu sorun belirgindi.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> <code>next\/image<\/code> bile\u015feninin yeni \u00f6zelliklerini ve prop'lar\u0131n\u0131 detayl\u0131ca inceledik. Resimlerin do\u011fru <code>width<\/code>, <code>height<\/code> ve <code>sizes<\/code> prop'lar\u0131 ile tan\u0131mland\u0131\u011f\u0131ndan emin olduk. Ayr\u0131ca, resimlerin CDN \u00fczerinden sunuldu\u011funu ve uygun formatlarda (WebP, AVIF) d\u00f6n\u00fc\u015ft\u00fcr\u00fcld\u00fc\u011f\u00fcn\u00fc do\u011frulad\u0131k.<\/p>\n<h4>Sunucu Taraf\u0131 Olu\u015fturma (SSR) ve Statik Site Olu\u015fturma (SSG) Yanl\u0131\u015f Kullan\u0131m\u0131<\/h4>\n<p>Next.js'in g\u00fcc\u00fc, farkl\u0131 render stratejileri sunmas\u0131d\u0131r. Ancak Next.js 15'e y\u00fckseltme sonras\u0131, baz\u0131 sayfalar\u0131m\u0131z\u0131n gereksiz yere SSR kulland\u0131\u011f\u0131n\u0131, halbuki SSG veya ISR (Incremental Static Regeneration) i\u00e7in uygun oldu\u011funu fark ettik. Bu durum, sunucu y\u00fck\u00fcn\u00fc art\u0131rarak yan\u0131t s\u00fcrelerini uzat\u0131yordu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Her sayfan\u0131n veri gereksinimlerini ve g\u00fcncelleme s\u0131kl\u0131\u011f\u0131n\u0131 analiz ederek en uygun render stratejisini belirledik. Statik i\u00e7eri\u011fe sahip sayfalar i\u00e7in <code>getStaticProps<\/code>, s\u0131k g\u00fcncellenen ancak statik olabilecek sayfalar i\u00e7in <code>getStaticProps<\/code> ve <code>revalidate<\/code> ile ISR, dinamik ve kullan\u0131c\u0131ya \u00f6zel i\u00e7erikler i\u00e7in <code>getServerSideProps<\/code> kulland\u0131k.<\/p>\n<p><b>Render Stratejileri Kar\u015f\u0131la\u015ft\u0131rmas\u0131:<\/b><\/p>\n<table>\n<thead>\n<tr>\n<th>Strateji<\/th>\n<th>A\u00e7\u0131klama<\/th>\n<th>Kullan\u0131m Alan\u0131<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><b>SSG (Static Site Generation)<\/b><\/td>\n<td>Build zaman\u0131nda HTML olu\u015fturulur.<\/td>\n<td>Blog yaz\u0131lar\u0131, \u00fcr\u00fcn sayfalar\u0131 (de\u011fi\u015fmeyen).<\/td>\n<\/tr>\n<tr>\n<td><b>ISR (Incremental Static Regeneration)<\/b><\/td>\n<td>Build zaman\u0131nda olu\u015fturulur, belirli aral\u0131klarla yeniden olu\u015fturulur.<\/td>\n<td>S\u0131k g\u00fcncellenen bloglar, haber siteleri.<\/td>\n<\/tr>\n<tr>\n<td><b>SSR (Server-Side Rendering)<\/b><\/td>\n<td>Her istekte sunucuda HTML olu\u015fturulur.<\/td>\n<td>Ki\u015fiye \u00f6zel paneller, dinamik i\u00e7erikler.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>Bundle Boyutu ve Kod B\u00f6lme (Code Splitting) Problemleri<\/h4>\n<p>Yeni ba\u011f\u0131ml\u0131l\u0131klar ekledik\u00e7e veya mevcutlar\u0131 g\u00fcncelledik\u00e7e, JavaScript bundle boyutumuzun Next.js 15 ge\u00e7i\u015fiyle birlikte artt\u0131\u011f\u0131n\u0131 g\u00f6rd\u00fck. Bu durum, \u00f6zellikle mobil cihazlarda yava\u015f y\u00fcklemelere neden oluyordu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> <code>@next\/bundle-analyzer<\/code> gibi ara\u00e7larla bundle boyutunu analiz ettik. Dinamik import kullanarak sadece ihtiya\u00e7 duyulan kodun y\u00fcklenmesini sa\u011flad\u0131k. Gereksiz k\u00fct\u00fcphaneleri kald\u0131rd\u0131k ve a\u011fa\u00e7 sallama (tree-shaking) \u00f6zelliklerini do\u011fru kulland\u0131\u011f\u0131m\u0131zdan emin olduk.<\/p>\n<pre><code class=\"language-jsx\">\nimport dynamic from 'next\/dynamic';\n\nconst DynamicComponent = dynamic(() => import('..\/components\/HeavyComponent'), {\n  loading: () => <p>Y\u00fckleniyor...<\/p>,\n});\n\nfunction MyPage() {\n  return (\n    <div>\n      <h1>Sayfam<\/h1>\n      <DynamicComponent \/>\n    <\/div>\n  );\n}\n<\/pre>\n<p><\/code><\/p>\n<h3>SEO Etkileyen Teknik Sorunlar<\/h3>\n<p>Trafik d\u00fc\u015f\u00fc\u015f\u00fcn\u00fcn en b\u00fcy\u00fck nedenlerinden biri, arama motorlar\u0131n\u0131n uygulamam\u0131z\u0131 do\u011fru \u015fekilde tarayamamas\u0131 veya dizine ekleyememesiydi. Next.js 15 ge\u00e7i\u015fiyle birlikte baz\u0131 SEO ayarlar\u0131n\u0131n bozuldu\u011funu veya g\u00f6zden ka\u00e7t\u0131\u011f\u0131n\u0131 tespit ettik.<\/p>\n<h4>Meta Etiketleri ve Ba\u015fl\u0131k Yap\u0131land\u0131rmas\u0131<\/h4>\n<p>Baz\u0131 sayfalar\u0131m\u0131z\u0131n <code><title><\/code> ve <code><meta description><\/code> etiketlerinin eksik veya yanl\u0131\u015f oldu\u011funu fark ettik. \u00d6zellikle dinamik rotalarda bu sorun daha belirgindi.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Next.js'in <code>next\/head<\/code> veya <code>next\/script<\/code> bile\u015fenlerini kullanarak her sayfa i\u00e7in dinamik ve do\u011fru meta etiketleri olu\u015fturduk. SEO ekibimizle birlikte anahtar kelime ara\u015ft\u0131rmas\u0131 yaparak i\u00e7erik optimizasyonuna gittik.<\/p>\n<h4>Site Haritas\u0131 (Sitemap) ve Robots.txt Hatalar\u0131<\/h4>\n<p>Uygulamam\u0131z\u0131n site haritas\u0131 Next.js 15 ge\u00e7i\u015fiyle birlikte g\u00fcncellenmemi\u015fti ve baz\u0131 yeni sayfalar dizine eklenemiyordu. Ayr\u0131ca, <code>robots.txt<\/code> dosyas\u0131nda yanl\u0131\u015fl\u0131kla \u00f6nemli sayfalar\u0131 engelledi\u011fimizi fark ettik.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Otomatik site haritas\u0131 olu\u015fturma eklentilerini (\u00f6rne\u011fin, <code>next-sitemap<\/code>) kullanarak site haritam\u0131z\u0131 g\u00fcncelledik ve her da\u011f\u0131t\u0131m sonras\u0131 otomatik olarak yenilenmesini sa\u011flad\u0131k. <code>robots.txt<\/code> dosyas\u0131n\u0131 dikkatlice g\u00f6zden ge\u00e7irerek arama motorlar\u0131n\u0131n t\u00fcm \u00f6nemli sayfalar\u0131m\u0131z\u0131 tarayabildi\u011finden emin olduk.<\/p>\n<h4>Dizin Olu\u015fturma (Indexing) ve Taranabilirlik (Crawlability) Sorunlar\u0131<\/h4>\n<p>Google Search Console verilerini inceledi\u011fimizde, Next.js 15'e ge\u00e7i\u015f sonras\u0131 baz\u0131 sayfalar\u0131m\u0131z\u0131n taranamad\u0131\u011f\u0131n\u0131 veya dizine eklenemedi\u011fini g\u00f6rd\u00fck. Bu durum, muhtemelen JavaScript hatalar\u0131 veya sunucu yan\u0131t s\u00fcrelerinin uzamas\u0131yla ilgiliydi.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Sunucu loglar\u0131n\u0131 ve taray\u0131c\u0131 konsolundaki hatalar\u0131 inceleyerek JavaScript hatalar\u0131n\u0131 giderdik. Sunucu yan\u0131t s\u00fcrelerini d\u00fc\u015f\u00fcrerek arama motoru botlar\u0131n\u0131n daha h\u0131zl\u0131 ve verimli bir \u015fekilde sayfalar\u0131m\u0131z\u0131 taramas\u0131n\u0131 sa\u011flad\u0131k. Ayr\u0131ca, <code>noindex<\/code> etiketlerinin yanl\u0131\u015fl\u0131kla kullan\u0131lmad\u0131\u011f\u0131ndan emin olduk.<\/p>\n<h4>Hatal\u0131 Y\u00f6nlendirmeler (Redirects) ve K\u0131r\u0131k Ba\u011flant\u0131lar<\/h4>\n<p>Uygulama i\u00e7inde veya d\u0131\u015f\u0131ndan gelen baz\u0131 ba\u011flant\u0131lar\u0131n Next.js 15 ge\u00e7i\u015fiyle birlikte 404 hatalar\u0131na yol a\u00e7t\u0131\u011f\u0131n\u0131 tespit ettik. \u00d6zellikle URL yap\u0131lar\u0131nda yap\u0131lan de\u011fi\u015fiklikler bu duruma neden olmu\u015ftu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> T\u00fcm k\u0131r\u0131k ba\u011flant\u0131lar\u0131 tespit etmek i\u00e7in bir denetim arac\u0131 kulland\u0131k. Gerekli yerlerde 301 y\u00f6nlendirmeleri (kal\u0131c\u0131) ve 302 y\u00f6nlendirmeleri (ge\u00e7ici) uygulayarak kullan\u0131c\u0131lar\u0131 ve arama motorlar\u0131n\u0131 do\u011fru sayfalara y\u00f6nlendirdik. Next.js'in <code>next.config.js<\/code> dosyas\u0131ndaki <code>redirects<\/code> \u00f6zelli\u011fini aktif olarak kulland\u0131k.<\/p>\n<pre><code class=\"language-javascript\">\n\/\/ next.config.js\nmodule.exports = {\n  async redirects() {\n    return [\n      {\n        source: '\/eski-sayfa',\n        destination: '\/yeni-sayfa',\n        permanent: true, \/\/ 301 y\u00f6nlendirmesi\n      },\n      {\n        source: '\/urunler\/:slug',\n        destination: '\/kategori\/urunler\/:slug',\n        permanent: true,\n      },\n    ];\n  },\n};\n<\/pre>\n<p><\/code><\/p>\n<h3>Altyap\u0131 ve Da\u011f\u0131t\u0131m Hatalar\u0131<\/h3>\n<p>Next.js 15'e y\u00fckseltme, sadece kod taban\u0131nda de\u011fil, altyap\u0131 ve da\u011f\u0131t\u0131m s\u00fcre\u00e7lerimizde de beklenmedik sorunlara yol a\u00e7t\u0131.<\/p>\n<h4>Sunucu Y\u00fck\u00fc ve \u00d6l\u00e7eklenebilirlik Sorunlar\u0131<\/h4>\n<p>Next.js 15'in baz\u0131 yeni \u00f6zelliklerinin veya ba\u011f\u0131ml\u0131l\u0131klar\u0131n\u0131n sunucu taraf\u0131nda daha fazla kaynak t\u00fcketti\u011fini fark ettik. \u00d6zellikle SSR kullan\u0131lan sayfalarda sunucu yan\u0131t s\u00fcreleri uzam\u0131\u015f ve CPU kullan\u0131m\u0131 artm\u0131\u015ft\u0131.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Sunucu kaynaklar\u0131n\u0131 (CPU, RAM) art\u0131rd\u0131k ve otomatik \u00f6l\u00e7eklendirme kurallar\u0131m\u0131z\u0131 g\u00f6zden ge\u00e7irdik. Next.js uygulamas\u0131n\u0131 daha verimli bir \u015fekilde \u00e7al\u0131\u015ft\u0131rmak i\u00e7in Node.js \u00e7al\u0131\u015fma zaman\u0131 optimizasyonlar\u0131 yapt\u0131k (\u00f6rne\u011fin, PM2 gibi bir s\u00fcre\u00e7 y\u00f6neticisi kullanmak).<\/p>\n<h4>CDN Yap\u0131land\u0131rma Hatalar\u0131<\/h4>\n<p>CDN (\u0130\u00e7erik Da\u011f\u0131t\u0131m A\u011f\u0131) yap\u0131land\u0131rmam\u0131z Next.js 15'in yeni statik dosya i\u015fleme mekanizmas\u0131yla tam uyumlu de\u011fildi. Baz\u0131 statik varl\u0131klar (CSS, JS, resimler) do\u011fru bir \u015fekilde \u00f6nbelle\u011fe al\u0131nm\u0131yor veya eski s\u00fcr\u00fcmleri sunuluyordu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> CDN ayarlar\u0131m\u0131z\u0131 Next.js'in statik varl\u0131k da\u011f\u0131t\u0131m stratejisine g\u00f6re g\u00fcncelledik. \u00d6nbellekleme s\u00fcrelerini (TTL) optimize ettik ve da\u011f\u0131t\u0131m sonras\u0131 CDN \u00f6nbelle\u011fini temizleme s\u00fcre\u00e7lerini otomatikle\u015ftirdik.<\/p>\n<h4>Veritaban\u0131 ve API Performans Darbo\u011fazlar\u0131<\/h4>\n<p>Uygulaman\u0131n Next.js 15'e y\u00fckseltilmesiyle birlikte, veritaban\u0131 sorgular\u0131n\u0131n veya harici API \u00e7a\u011fr\u0131lar\u0131n\u0131n yan\u0131t s\u00fcrelerinde art\u0131\u015f oldu\u011funu g\u00f6zlemledik. Bu durum, \u00f6zellikle <code>getServerSideProps<\/code> kullanan sayfalarda kritik bir darbo\u011faz olu\u015fturuyordu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Veritaban\u0131 sorgular\u0131n\u0131 optimize ettik, indekslemeyi kontrol ettik ve gereksiz veri \u00e7ekimlerini azaltt\u0131k. Harici API \u00e7a\u011fr\u0131lar\u0131 i\u00e7in \u00f6nbellekleme mekanizmalar\u0131 (\u00f6rne\u011fin, Redis) uygulad\u0131k ve API yan\u0131t s\u00fcrelerini d\u00fc\u015f\u00fcrmek i\u00e7in sa\u011flay\u0131c\u0131larla ileti\u015fime ge\u00e7tik.<\/p>\n<h4>Da\u011f\u0131t\u0131m S\u00fcrecindeki Hatalar ve Rollback Eksikli\u011fi<\/h4>\n<p>Next.js 15 da\u011f\u0131t\u0131m\u0131 s\u0131ras\u0131nda otomasyon eksiklikleri ve yetersiz test s\u00fcre\u00e7leri nedeniyle hatal\u0131 bir s\u00fcr\u00fcm\u00fcn canl\u0131ya \u00e7\u0131kt\u0131\u011f\u0131n\u0131 fark ettik. Ayr\u0131ca, h\u0131zl\u0131 bir geri alma (rollback) mekanizmam\u0131z\u0131n olmamas\u0131 durumu daha da k\u00f6t\u00fcle\u015ftirdi.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> CI\/CD (S\u00fcrekli Entegrasyon\/S\u00fcrekli Da\u011f\u0131t\u0131m) s\u00fcre\u00e7lerimizi g\u00fc\u00e7lendirdik. Da\u011f\u0131t\u0131m \u00f6ncesi kapsaml\u0131 entegrasyon ve performans testleri ekledik. H\u0131zl\u0131 ve g\u00fcvenli bir geri alma (rollback) stratejisi olu\u015fturarak, olas\u0131 sorunlarda eski s\u00fcr\u00fcme an\u0131nda d\u00f6nebilme yetene\u011fi kazand\u0131k.<\/p>\n<h3>Kullan\u0131c\u0131 Deneyimi (UX) ve \u0130\u00e7erik Problemleri<\/h3>\n<p>Performans ve SEO sorunlar\u0131n\u0131n yan\u0131 s\u0131ra, kullan\u0131c\u0131 deneyimini do\u011frudan etkileyen fakt\u00f6rler de trafik kayb\u0131m\u0131za katk\u0131da bulundu.<\/p>\n<h4>Yava\u015f Y\u00fckleme S\u00fcreleri ve Core Web Vitals<\/h4>\n<p>Google'\u0131n Core Web Vitals metrikleri (LCP, FID, CLS) Next.js 15 ge\u00e7i\u015fiyle birlikte k\u00f6t\u00fcle\u015fmi\u015fti. Bu durum, hem SEO s\u0131ralamalar\u0131m\u0131z\u0131 d\u00fc\u015f\u00fcrd\u00fc hem de kullan\u0131c\u0131lar\u0131n sabr\u0131n\u0131 zorlad\u0131.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Lighthouse ve PageSpeed Insights gibi ara\u00e7larla d\u00fczenli denetimler yaparak Core Web Vitals metriklerini s\u00fcrekli izledik. Resim optimizasyonu, kritik CSS'in sat\u0131r i\u00e7i (inline) olarak y\u00fcklenmesi, JavaScript bundle boyutunun k\u00fc\u00e7\u00fclt\u00fclmesi gibi performans iyile\u015ftirmelerine odakland\u0131k.<\/p>\n<h4>Mobil Uyumluluk Sorunlar\u0131<\/h4>\n<p>Next.js 15'e ge\u00e7i\u015fle birlikte baz\u0131 CSS veya layout hatalar\u0131 mobil cihazlarda beklenmedik g\u00f6rsel bozukluklara yol a\u00e7m\u0131\u015ft\u0131. Bu durum, mobil kullan\u0131c\u0131lar\u0131n uygulamay\u0131 terk etmesine neden oldu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Farkl\u0131 mobil cihazlarda ve taray\u0131c\u0131larda kapsaml\u0131 testler yapt\u0131k. Responsive tasar\u0131m prensiplerine uygun olmayan CSS kurallar\u0131n\u0131 d\u00fczelttik ve mobil \u00f6ncelikli geli\u015ftirme yakla\u015f\u0131m\u0131n\u0131 benimsedik.<\/p>\n<h4>Eri\u015filebilirlik (Accessibility) Eksiklikleri<\/h4>\n<p>Eri\u015filebilirlik, genellikle g\u00f6z ard\u0131 edilen ancak kullan\u0131c\u0131 deneyimi i\u00e7in kritik bir fakt\u00f6rd\u00fcr. Next.js 15 ge\u00e7i\u015fiyle birlikte baz\u0131 yeni bile\u015fenlerin veya etkile\u015fimlerin eri\u015filebilirlik standartlar\u0131na uymad\u0131\u011f\u0131n\u0131 fark ettik.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> WCAG (Web \u0130\u00e7eri\u011fi Eri\u015filebilirlik Y\u00f6nergeleri) standartlar\u0131na uygunluk i\u00e7in eri\u015filebilirlik denetimleri yapt\u0131k. Anlamsal HTML kullan\u0131m\u0131, ARIA nitelikleri ve klavye navigasyonu gibi konulara dikkat ederek uygulamam\u0131z\u0131 daha kapsay\u0131c\u0131 hale getirdik.<\/p>\n<h4>Kullan\u0131c\u0131y\u0131 \u0130lgilendirmeyen veya Eski \u0130\u00e7erik<\/h4>\n<p>Teknik sorunlar\u0131n yan\u0131 s\u0131ra, baz\u0131 sayfalar\u0131m\u0131zdaki i\u00e7eri\u011fin g\u00fcncel olmamas\u0131 veya kullan\u0131c\u0131lar\u0131n ihtiya\u00e7lar\u0131n\u0131 kar\u015f\u0131lamamas\u0131 da trafik kayb\u0131na katk\u0131da bulundu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> \u0130\u00e7erik stratejimizi g\u00f6zden ge\u00e7irdik. D\u00fczenli olarak i\u00e7erik denetimleri yaparak eski veya alakas\u0131z i\u00e7erikleri g\u00fcncelledik, iyile\u015ftirdik veya kald\u0131rd\u0131k. Kullan\u0131c\u0131 geri bildirimlerini dikkate alarak yeni ve de\u011ferli i\u00e7erikler olu\u015fturmaya odakland\u0131k.<\/p>\n<h3>\u00dc\u00e7\u00fcnc\u00fc Taraf Entegrasyonlar\u0131 ve Ba\u011f\u0131ml\u0131l\u0131klar<\/h3>\n<p>Uygulamam\u0131z\u0131n d\u0131\u015f ba\u011f\u0131ml\u0131l\u0131klar\u0131 ve entegrasyonlar\u0131, Next.js 15 y\u00fckseltmesi sonras\u0131 beklenmedik sorunlara yol a\u00e7t\u0131.<\/p>\n<h4>API Entegrasyon Hatalar\u0131<\/h4>\n<p>\u00dc\u00e7\u00fcnc\u00fc taraf API'lar ile olan entegrasyonlar\u0131m\u0131zda Next.js 15 ge\u00e7i\u015fiyle birlikte uyumsuzluklar veya performans d\u00fc\u015f\u00fc\u015fleri ya\u015fand\u0131. \u00d6zellikle API \u00e7a\u011fr\u0131lar\u0131n\u0131n yan\u0131t s\u00fcreleri uzam\u0131\u015f veya hatalar d\u00f6n\u00fcyordu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> T\u00fcm \u00fc\u00e7\u00fcnc\u00fc taraf API entegrasyonlar\u0131n\u0131 g\u00f6zden ge\u00e7irdik. API dok\u00fcmantasyonlar\u0131n\u0131 kontrol ederek uyumluluk sorunlar\u0131n\u0131 giderdik. Hata i\u015fleme mekanizmalar\u0131n\u0131 g\u00fc\u00e7lendirdik ve API \u00e7a\u011fr\u0131lar\u0131 i\u00e7in zaman a\u015f\u0131m\u0131 (timeout) limitleri belirledik.<\/p>\n<h4>K\u00fct\u00fcphane ve Paket \u00c7ak\u0131\u015fmalar\u0131<\/h4>\n<p><code>package.json<\/code> dosyam\u0131zdaki baz\u0131 k\u00fct\u00fcphanelerin Next.js 15 ile uyumsuz oldu\u011funu veya birbiriyle \u00e7ak\u0131\u015ft\u0131\u011f\u0131n\u0131 tespit ettik. Bu durum, \u00e7al\u0131\u015fma zaman\u0131 hatalar\u0131na ve uygulaman\u0131n karars\u0131z \u00e7al\u0131\u015fmas\u0131na neden oluyordu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> T\u00fcm ba\u011f\u0131ml\u0131l\u0131klar\u0131 g\u00fcncelledik ve uyumsuz olanlar\u0131 tespit ederek alternatif \u00e7\u00f6z\u00fcmler bulduk. <code>npm outdated<\/code> veya <code>yarn outdated<\/code> komutlar\u0131n\u0131 d\u00fczenli olarak kullanarak ba\u011f\u0131ml\u0131l\u0131klar\u0131m\u0131z\u0131 g\u00fcncel tuttuk. Gerekirse, <code>package-lock.json<\/code> veya <code>yarn.lock<\/code> dosyalar\u0131n\u0131 yeniden olu\u015fturduk.<\/p>\n<h4>Analytics ve \u0130zleme Kodlar\u0131n\u0131n Performans Etkisi<\/h4>\n<p>Google Analytics, Hotjar gibi izleme ara\u00e7lar\u0131n\u0131n veya reklam kodlar\u0131n\u0131n Next.js 15 ge\u00e7i\u015fi sonras\u0131 performans \u00fczerinde daha b\u00fcy\u00fck bir etkiye sahip oldu\u011funu fark ettik.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> \u0130zleme kodlar\u0131n\u0131 optimize ettik. Gereksiz veya kullan\u0131lmayan izleme ara\u00e7lar\u0131n\u0131 kald\u0131rd\u0131k. <code>next\/script<\/code> bile\u015fenini kullanarak bu kodlar\u0131n asenkron veya ertelenmi\u015f (deferred) olarak y\u00fcklenmesini sa\u011flad\u0131k, b\u00f6ylece sayfa y\u00fcklemesini engellemediler.<\/p>\n<h4>G\u00fcvenlik A\u00e7\u0131klar\u0131 ve G\u00fcncel Olmayan Ba\u011f\u0131ml\u0131l\u0131klar<\/h4>\n<p>Eski veya g\u00fcncel olmayan ba\u011f\u0131ml\u0131l\u0131klar, g\u00fcvenlik a\u00e7\u0131klar\u0131na yol a\u00e7abilir ve uygulaman\u0131n b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc tehlikeye atabilir. Next.js 15 y\u00fckseltmesi s\u0131ras\u0131nda bu t\u00fcr potansiyel riskleri g\u00f6zden ka\u00e7\u0131rm\u0131\u015ft\u0131k.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Ba\u011f\u0131ml\u0131l\u0131klar\u0131m\u0131z\u0131 d\u00fczenli olarak g\u00fcvenlik a\u00e7\u0131klar\u0131 a\u00e7\u0131s\u0131ndan tarad\u0131k (\u00f6rne\u011fin, <code>npm audit<\/code>). T\u00fcm ba\u011f\u0131ml\u0131l\u0131klar\u0131 g\u00fcncel tutarak bilinen g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 kapatt\u0131k. G\u00fcvenlik politikalar\u0131m\u0131z\u0131 g\u00f6zden ge\u00e7irerek uygulaman\u0131n genel g\u00fcvenli\u011fini art\u0131rd\u0131k.<\/p>\n<h3>Veri Analizi ve \u0130zleme Eksiklikleri<\/h3>\n<p>Trafik d\u00fc\u015f\u00fc\u015f\u00fcn\u00fc ilk ba\u015fta fark etmemizdeki gecikme, yeterli izleme ve analiz ara\u00e7lar\u0131na sahip olmamam\u0131zdan kaynaklan\u0131yordu.<\/p>\n<h4>Ger\u00e7ek Zamanl\u0131 \u0130zleme ve Uyar\u0131 Sistemleri<\/h4>\n<p>Next.js 15 ge\u00e7i\u015fi sonras\u0131, uygulamam\u0131zdaki performans d\u00fc\u015f\u00fc\u015flerini veya hatalar\u0131 ger\u00e7ek zamanl\u0131 olarak tespit edemedi\u011fimizi fark ettik.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Uygulama performans\u0131n\u0131 izlemek i\u00e7in Prometheus, Grafana gibi ara\u00e7lar\u0131 entegre ettik. Hata izleme i\u00e7in Sentry veya New Relic gibi hizmetleri kullanarak kritik hatalarda an\u0131nda uyar\u0131 almay\u0131 sa\u011flad\u0131k. Sunucu loglar\u0131n\u0131 merkezi bir sistemde (\u00f6rne\u011fin, ELK Stack) toplad\u0131k.<\/p>\n<h4>Google Analytics ve Search Console Verilerinin Yorumlanmas\u0131<\/h4>\n<p>Trafik d\u00fc\u015f\u00fc\u015f\u00fcn\u00fc fark ettikten sonra Google Analytics ve Search Console verilerini detayl\u0131ca inceledik. Bu veriler, hangi sayfalar\u0131n etkilendi\u011fini, hangi anahtar kelimelerin s\u0131ralama kaybetti\u011fini ve kullan\u0131c\u0131 davran\u0131\u015f\u0131ndaki de\u011fi\u015fiklikleri anlamam\u0131za yard\u0131mc\u0131 oldu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> D\u00fczenli olarak Google Analytics ve Search Console verilerini analiz etmeyi bir rutin haline getirdik. \u00d6zellikle organik trafik, sayfa g\u00f6r\u00fcnt\u00fclemeleri, hemen \u00e7\u0131kma oran\u0131 ve ortalama oturum s\u00fcresi gibi metrikleri yak\u0131ndan takip ettik.<\/p>\n<h4>A\/B Testi ve Kullan\u0131c\u0131 Geri Bildirimlerinin \u00d6nemi<\/h4>\n<p>Yeni \u00f6zelliklerin veya tasar\u0131m de\u011fi\u015fikliklerinin kullan\u0131c\u0131 deneyimi \u00fczerindeki etkisini \u00f6l\u00e7mek i\u00e7in A\/B testleri yapmam\u0131\u015ft\u0131k. Ayr\u0131ca, kullan\u0131c\u0131 geri bildirimlerini toplama mekanizmalar\u0131m\u0131z yetersizdi.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Yeni \u00f6zellikler veya \u00f6nemli de\u011fi\u015fiklikler \u00f6ncesinde A\/B testleri yaparak potansiyel olumsuz etkileri \u00f6nceden tespit etmeyi \u00f6\u011frendik. Kullan\u0131c\u0131 geri bildirimlerini toplamak i\u00e7in anketler, formlar ve do\u011frudan ileti\u015fim kanallar\u0131 olu\u015fturduk.<\/p>\n<h4>Log Kay\u0131tlar\u0131 ve Hata Ay\u0131klama<\/h4>\n<p>Uygulama genelinde olu\u015fan hatalar\u0131 veya performans sorunlar\u0131n\u0131 tespit etmek i\u00e7in yeterli loglama ve hata ay\u0131klama mekanizmalar\u0131m\u0131z yoktu.<\/p>\n<p><b>\u00c7\u00f6z\u00fcm:<\/b> Uygulama genelinde kapsaml\u0131 loglama stratejileri uygulad\u0131k. Hata mesajlar\u0131n\u0131, uyar\u0131lar\u0131 ve \u00f6nemli olaylar\u0131 loglayarak sorun giderme s\u00fcre\u00e7lerini h\u0131zland\u0131rd\u0131k. Next.js'in geli\u015ftirme ara\u00e7lar\u0131n\u0131 ve taray\u0131c\u0131 konsolunu daha etkin bir \u015fekilde kulland\u0131k.<\/p>\n<h3>\u00c7\u00f6z\u00fcm Yollar\u0131 ve Gelecek Stratejileri<\/h3>\n<p>Trafik kayb\u0131n\u0131 telafi etmek ve gelecekte benzer sorunlar\u0131 \u00f6nlemek i\u00e7in kapsaml\u0131 bir strateji belirledik.<\/p>\n<h4>Kapsaml\u0131 Performans Denetimi ve Optimizasyon<\/h4>\n<p>Uygulamam\u0131z\u0131n t\u00fcm kritik sayfalar\u0131nda d\u00fczenli olarak performans denetimleri (Lighthouse, Web Vitals) yapmay\u0131 taahh\u00fct ettik. Resim optimizasyonu, kod b\u00f6lme, \u00f6nbellekleme ve sunucu taraf\u0131 render stratejilerini s\u00fcrekli optimize etmeye devam ettik.<\/p>\n<p><b>Ad\u0131mlar:<\/b><\/p>\n<ul>\n<li>Her da\u011f\u0131t\u0131m \u00f6ncesi otomatik performans testleri.<\/li>\n<li>Kritik kullan\u0131c\u0131 ak\u0131\u015flar\u0131 i\u00e7in sentetik izleme.<\/li>\n<li>Ger\u00e7ek kullan\u0131c\u0131 izleme (RUM) ara\u00e7lar\u0131 ile performans takibi.<\/li>\n<\/ul>\n<h4>SEO Denetimi ve Teknik \u0130yile\u015ftirmeler<\/h4>\n<p>Arama motoru s\u0131ralamalar\u0131m\u0131z\u0131 geri kazanmak i\u00e7in kapsaml\u0131 bir SEO denetimi ger\u00e7ekle\u015ftirdik. Meta etiketleri, site haritas\u0131, <code>robots.txt<\/code> ve y\u00f6nlendirmeleri s\u00fcrekli g\u00fcncel tutmay\u0131 bir \u00f6ncelik haline getirdik.<\/p>\n<p><b>Ad\u0131mlar:<\/b><\/p>\n<ul>\n<li>Periyodik teknik SEO denetimleri.<\/li>\n<li>Anahtar kelime ara\u015ft\u0131rmas\u0131 ve i\u00e7erik optimizasyonu.<\/li>\n<li>Backlink profili analizi ve iyile\u015ftirmesi.<\/li>\n<\/ul>\n<h4>Altyap\u0131 ve Da\u011f\u0131t\u0131m S\u00fcre\u00e7lerinin G\u00f6zden Ge\u00e7irilmesi<\/h4>\n<p>Daha sa\u011flam ve g\u00fcvenilir bir altyap\u0131 i\u00e7in da\u011f\u0131t\u0131m s\u00fcre\u00e7lerimizi otomatikle\u015ftirdik, test kapsam\u0131n\u0131 geni\u015flettik ve h\u0131zl\u0131 geri alma mekanizmalar\u0131 olu\u015fturduk.<\/p>\n<p><b>Ad\u0131mlar:<\/b><\/p>\n<ul>\n<li>CI\/CD pipeline'lar\u0131n\u0131n g\u00fc\u00e7lendirilmesi.<\/li>\n<li>Otomatik \u00f6l\u00e7eklenebilirlik ve y\u00fck dengeleme \u00e7\u00f6z\u00fcmleri.<\/li>\n<li>Felaket kurtarma (disaster recovery) planlar\u0131.<\/li>\n<\/ul>\n<h4>S\u00fcrekli \u0130zleme ve Geri Bildirim Mekanizmalar\u0131<\/h4>\n<p>Gelecekte benzer sorunlar\u0131n erken tespiti i\u00e7in kapsaml\u0131 izleme ve uyar\u0131 sistemleri kurduk. Kullan\u0131c\u0131 geri bildirimlerini aktif olarak dinleyerek uygulamam\u0131z\u0131 s\u00fcrekli iyile\u015ftirmeyi hedefledik.<\/p>\n<p><b>Ad\u0131mlar:<\/b><\/p>\n<ul>\n<li>Ger\u00e7ek zamanl\u0131 performans ve hata izleme<br \/>\n","protected":false},"excerpt":{"rendered":"\u00c7\u00f6z\u00fcm: React. memo ve useCallback\/useMemo hook&#8217;lar\u0131n\u0131 kullanarak bile\u015fenlerimizi ve fonksiyonlar\u0131m\u0131z\u0131 memoize ettik.","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-41103","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - 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