{"id":89,"date":"2026-02-13T10:45:00","date_gmt":"2026-02-13T10:45:00","guid":{"rendered":"https:\/\/perminet.com\/blog\/?p=89"},"modified":"2026-02-12T18:51:17","modified_gmt":"2026-02-12T18:51:17","slug":"waf-nedir-web-siteleri-icin-gercekten-gerekli-mi","status":"publish","type":"post","link":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/","title":{"rendered":"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Gece saat 02:40. Sunucu izleme panelinde CPU dalgalan\u0131yor. Trafik normal g\u00f6r\u00fcn\u00fcyor ama veritaban\u0131 sorgu s\u00fcresi artm\u0131\u015f. Loglar\u0131 a\u00e7\u0131yorsunuz. Ayn\u0131 endpoint\u2019e y\u00fczlerce farkl\u0131 parametreyle istek geliyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Port 80 a\u00e7\u0131k. SSL aktif. Firewall \u00e7al\u0131\u015f\u0131yor.<br>Ama biri uygulaman\u0131n i\u00e7ine konu\u015fuyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130\u015fte \u00e7o\u011fu i\u015fletmenin ge\u00e7 fark etti\u011fi nokta bu: Sunucu g\u00fcvenli olabilir. A\u011f g\u00fcvenli olabilir. Ama web uygulamas\u0131 savunmas\u0131z olabilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WAF tam burada devreye girer.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Web siteleri en \u00e7ok hangi a\u00e7\u0131k \u00fczerinden sald\u0131r\u0131 al\u0131r?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sahada g\u00f6rd\u00fc\u011f\u00fcm tablo net: Sald\u0131r\u0131lar\u0131n b\u00fcy\u00fck k\u0131sm\u0131 network seviyesinden de\u011fil, application layer\u2019dan geliyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En s\u0131k kar\u015f\u0131la\u015ft\u0131klar\u0131m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SQL injection denemeleri<\/li>\n\n\n\n<li>XSS payload\u2019lar\u0131<\/li>\n\n\n\n<li>Brute force login sald\u0131r\u0131lar\u0131<\/li>\n\n\n\n<li>XML-RPC abuse<\/li>\n\n\n\n<li>Sahte bot trafi\u011fi<\/li>\n\n\n\n<li>Sepet ve form spamlar\u0131<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Firewall bu istekleri \u201cnormal HTTP trafi\u011fi\u201d olarak g\u00f6r\u00fcr. \u00c7\u00fcnk\u00fc teknik olarak ba\u011flant\u0131 me\u015frudur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ama i\u00e7erik zararl\u0131d\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00d6rne\u011fin:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/product?id=5 UNION SELECT username,password FROM users\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Firewall bunu durdurmaz.<br>WAF durdurur.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">WAF tam olarak ne yapar?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WAF (Web Application Firewall), HTTP isteklerini i\u00e7erik seviyesinde analiz eder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yani sadece IP\u2019ye bakmaz.<br>G\u00f6nderilen parametreleri, header\u2019lar\u0131, cookie davran\u0131\u015flar\u0131n\u0131 inceler.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u015eunlar\u0131 yapabilir:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SQL injection pattern\u2019lar\u0131n\u0131 bloklar<\/li>\n\n\n\n<li>XSS payload\u2019lar\u0131n\u0131 filtreler<\/li>\n\n\n\n<li>Anormal query string\u2019leri drop eder<\/li>\n\n\n\n<li>Bot davran\u0131\u015f analizi yapar<\/li>\n\n\n\n<li>Rate limiting uygular<\/li>\n\n\n\n<li>IP reputation kontrol\u00fc yapar<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Basit\u00e7e s\u00f6yleyeyim: Firewall kap\u0131y\u0131 korur.<br>WAF, i\u00e7eri giren ki\u015finin niyetini kontrol eder.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Ger\u00e7ek bir senaryo: \u201cG\u00fcvenli\u201d san\u0131lan site nas\u0131l zorland\u0131?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bir e-ticaret m\u00fc\u015fterim vard\u0131. G\u00fcnl\u00fck 3.000 ziyaret\u00e7i. G\u00fc\u00e7l\u00fc sunucu. \u0130zole kaynak. SSL aktif. Hosting taraf\u0131 stabil.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ama WAF yoktu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bir ak\u015fam \u00fcr\u00fcn arama sayfas\u0131na gelen injection denemeleri artt\u0131. URL\u2019ler \u015f\u00f6yleydi:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/search?q=telefon'+UNION+SELECT+...\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Sunucu \u00e7\u00f6kmedi. Ama veritaban\u0131 sorgu s\u00fcresi 4 kat artt\u0131.<br>Sayfa a\u00e7\u0131l\u0131\u015f h\u0131z\u0131 600 ms\u2019den 2.4 saniyeye \u00e7\u0131kt\u0131.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Google bot siteyi yava\u015f g\u00f6rd\u00fc. Crawl oran\u0131 d\u00fc\u015ft\u00fc.<br>Reklam d\u00f6n\u00fc\u015f\u00fcm oran\u0131 azald\u0131.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WAF entegre edildi.<br>Ayn\u0131 parametre yap\u0131s\u0131na sahip t\u00fcm injection denemeleri edge seviyesinde kesildi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sunucu g\u00fcc\u00fc yetmiyordu de\u011fil.<br>Filtreleme eksikti.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">WAF ile klasik firewall aras\u0131ndaki fark nedir?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bu fark \u00e7o\u011fu zaman kar\u0131\u015ft\u0131r\u0131l\u0131yor.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u00d6zellik<\/th><th>Network Firewall<\/th><th>WAF<\/th><\/tr><\/thead><tbody><tr><td>IP engelleme<\/td><td>\u2714<\/td><td>\u2714<\/td><\/tr><tr><td>Port kontrol\u00fc<\/td><td>\u2714<\/td><td>\u2716<\/td><\/tr><tr><td>HTTP parametre analizi<\/td><td>\u2716<\/td><td>\u2714<\/td><\/tr><tr><td>SQL injection korumas\u0131<\/td><td>\u2716<\/td><td>\u2714<\/td><\/tr><tr><td>XSS engelleme<\/td><td>\u2716<\/td><td>\u2714<\/td><\/tr><tr><td>Bot davran\u0131\u015f analizi<\/td><td>\u2716<\/td><td>\u2714<\/td><\/tr><tr><td>Uygulama katman\u0131 koruma<\/td><td>\u2716<\/td><td>\u2714<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Firewall ba\u011flant\u0131y\u0131 kontrol eder.<br>WAF i\u00e7eri\u011fi kontrol eder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130kisi birbirinin alternatifi de\u011fil.<br>Farkl\u0131 katmanlarda \u00e7al\u0131\u015f\u0131rlar.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">WAF ger\u00e7ekten her site i\u00e7in gerekli mi?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u015eu sorulara d\u00fcr\u00fcst cevap verin:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Admin paneliniz var m\u0131?<\/li>\n\n\n\n<li>Login sistemi var m\u0131?<\/li>\n\n\n\n<li>Kullan\u0131c\u0131 kayd\u0131 a\u00e7\u0131k m\u0131?<\/li>\n\n\n\n<li>Arama kutusu var m\u0131?<\/li>\n\n\n\n<li>Form var m\u0131?<\/li>\n\n\n\n<li>\u00d6deme altyap\u0131s\u0131 var m\u0131?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Bunlardan biri bile varsa risk alt\u0131ndas\u0131n\u0131z.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00fc\u00e7\u00fck i\u015fletmeler genelde \u201cbize sald\u0131rmazlar\u201d der.<br>Oysa bot a\u011flar\u0131 hedef se\u00e7mez. IP aral\u0131\u011f\u0131n\u0131 tarar. A\u00e7\u0131k bulursa dener.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00d6zellikle WordPress sitelerde XML-RPC brute force ve bot sald\u0131r\u0131lar\u0131 \u00e7ok yayg\u0131n.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c7o\u011fu ki\u015finin bilmedi\u011fi teknik detay<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WAF sadece g\u00fcvenlik sa\u011flamaz. Do\u011fru konfig\u00fcrasyonla performans\u0131 da korur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Application layer sald\u0131r\u0131lar\u0131nda sald\u0131rganlar genelde cache\u2019i devre d\u0131\u015f\u0131 b\u0131rakmak i\u00e7in parametre ekler:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/?utm=938472938\n\/?ref=239482394\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Bu sayede CDN cache \u00e7al\u0131\u015fmaz.<br>Her istek origin sunucuya gider.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130yi yap\u0131land\u0131r\u0131lm\u0131\u015f bir WAF:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Anlams\u0131z query string\u2019leri normalize eder<\/li>\n\n\n\n<li>Cache bypass giri\u015fimlerini bloklar<\/li>\n\n\n\n<li>\u015e\u00fcpheli botlar\u0131 edge seviyesinde keser<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Bu da sunucu kaynak t\u00fcketimini d\u00fc\u015f\u00fcr\u00fcr.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yani WAF sadece \u201cengelleyen\u201d bir ara\u00e7 de\u011fil, kaynak koruyan bir katmand\u0131r.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">WAF nas\u0131l konumland\u0131r\u0131lmal\u0131?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u00dc\u00e7 model var:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Sunucu i\u00e7i (mod_security gibi)<\/li>\n\n\n\n<li>Reverse proxy bazl\u0131<\/li>\n\n\n\n<li>Cloud tabanl\u0131 (CDN entegre)<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Sunucu i\u00e7i WAF en zay\u0131f modeldir. \u00c7\u00fcnk\u00fc trafik \u00f6nce sunucuya gelir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En etkili model: Edge seviyesinde filtreleme.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu noktada altyap\u0131 kalitesi \u00f6nemlidir. G\u00fc\u00e7l\u00fc ve izole edilmi\u015f bir hosting mimarisi, WAF ile birlikte \u00e7al\u0131\u015ft\u0131\u011f\u0131nda ger\u00e7ek verim al\u0131n\u0131r. \u00d6zellikle dinamik projelerde performans ve g\u00fcvenlik dengesi kritik.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kurumsal projeler i\u00e7in optimize edilmi\u015f ve y\u00fcksek eri\u015filebilirlik sunan altyap\u0131lar tercih edilmeli. Detayl\u0131 bilgi i\u00e7in <a href=\"https:\/\/perminet.com\/web-hosting\">https:\/\/perminet.com\/web-hosting<\/a> sayfas\u0131na g\u00f6z atabilirsiniz.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Altyap\u0131 zay\u0131fsa, WAF tek ba\u015f\u0131na yeterli olmaz.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">WAF yanl\u0131\u015f yap\u0131land\u0131r\u0131l\u0131rsa ne olur?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">En s\u0131k g\u00f6rd\u00fc\u011f\u00fcm hata:<br>Kuruluyor ama optimize edilmiyor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yanl\u0131\u015f ayarlanm\u0131\u015f bir WAF:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ger\u00e7ek kullan\u0131c\u0131y\u0131 engeller<\/li>\n\n\n\n<li>API \u00e7a\u011fr\u0131lar\u0131n\u0131 bozabilir<\/li>\n\n\n\n<li>\u00d6deme sistemini kilitleyebilir<\/li>\n\n\n\n<li>False positive \u00fcretir<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u00d6zellikle:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hassas endpoint\u2019ler i\u00e7in \u00f6zel kurallar<\/li>\n\n\n\n<li>Rate limit de\u011ferleri<\/li>\n\n\n\n<li>Whitelist IP\u2019ler<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">dikkatli ayarlanmal\u0131.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ben production\u2019a ge\u00e7meden \u00f6nce staging ortam\u0131nda test yapar\u0131m. Trafik sim\u00fclasyonu yapmadan canl\u0131ya al\u0131nmamal\u0131.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">WAF SEO a\u00e7\u0131s\u0131ndan neden \u00f6nemlidir?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SEO sadece i\u00e7erik de\u011fildir.<br>Stabilite ve h\u0131z da \u00f6nemlidir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Injection denemeleri ve bot sald\u0131r\u0131lar\u0131:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sunucu yan\u0131t s\u00fcresini art\u0131r\u0131r<\/li>\n\n\n\n<li>5xx hatalar\u0131na yol a\u00e7ar<\/li>\n\n\n\n<li>Crawl budget\u2019\u0131 d\u00fc\u015f\u00fcr\u00fcr<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Google istikrarl\u0131 siteleri sever.<br>Dalgal\u0131 performans, s\u0131ralamaya zarar verir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">WAF, \u00f6zellikle y\u00fcksek trafik alan ve dinamik sayfalar\u0131 olan sitelerde SEO istikrar\u0131n\u0131 korur.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">S\u0131k Sorulan Sorular (FAQ)<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\">WAF ile DDoS korumas\u0131 ayn\u0131 \u015fey mi?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hay\u0131r.<br>DDoS genelde trafik hacmini hedef al\u0131r.<br>WAF uygulama katman\u0131 sald\u0131r\u0131lar\u0131n\u0131 analiz eder. Baz\u0131 WAF \u00e7\u00f6z\u00fcmleri temel DDoS korumas\u0131 sunsa da kapsamlar\u0131 farkl\u0131d\u0131r.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">K\u00fc\u00e7\u00fck bir blog sitesi i\u00e7in WAF gerekli mi?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Login sistemi varsa evet.<br>\u00d6zellikle WordPress sitelerde brute force sald\u0131r\u0131lar\u0131 yayg\u0131nd\u0131r.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u00dccretsiz WAF yeterli olur mu?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Basit projelerde ba\u015flang\u0131\u00e7 i\u00e7in olabilir.<br>Ama geli\u015fmi\u015f bot ve injection sald\u0131r\u0131lar\u0131nda yetersiz kalabilir.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">WAF siteyi yava\u015flat\u0131r m\u0131?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yanl\u0131\u015f konfig\u00fcre edilirse evet.<br>Edge seviyesinde do\u011fru yap\u0131land\u0131r\u0131lm\u0131\u015f bir WAF genelde performans kayb\u0131 olu\u015fturmaz.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Hosting firmas\u0131 g\u00fcvenlik sa\u011fl\u0131yorsa yine de WAF gerekir mi?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hosting altyap\u0131s\u0131 network seviyesinde koruma sa\u011flayabilir.<br>Ama uygulama katman\u0131 sald\u0131r\u0131lar\u0131 i\u00e7in WAF gerekir.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Web sitesi g\u00fcvenli\u011fi sadece SSL ve g\u00fc\u00e7l\u00fc sunucu de\u011fildir.<br>Uygulama katman\u0131n\u0131 korumuyorsan\u0131z a\u00e7\u0131k b\u0131rakt\u0131\u011f\u0131n\u0131z bir alan vard\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bug\u00fcn k\u00fc\u00e7\u00fck g\u00f6r\u00fcnen bir a\u00e7\u0131k, yar\u0131n ciddi performans ve itibar kayb\u0131na d\u00f6n\u00fc\u015febilir. WAF bu riski kontrol alt\u0131na alman\u0131n en etkili yollar\u0131ndan biridir.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gece saat 02:40. Sunucu izleme panelinde CPU dalgalan\u0131yor. Trafik normal g\u00f6r\u00fcn\u00fcyor ama veritaban\u0131 sorgu s\u00fcresi artm\u0131\u015f. Loglar\u0131 a\u00e7\u0131yorsunuz. Ayn\u0131 endpoint\u2019e y\u00fczlerce farkl\u0131 parametreyle istek geliyor. Port 80 a\u00e7\u0131k. SSL aktif&#8230;.<\/p>\n","protected":false},"author":2,"featured_media":90,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[41,16,40],"class_list":["post-89","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-genel","tag-firewall","tag-hosting","tag-waf"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi? - Perminet<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi? - Perminet\" \/>\n<meta property=\"og:description\" content=\"Gece saat 02:40. Sunucu izleme panelinde CPU dalgalan\u0131yor. Trafik normal g\u00f6r\u00fcn\u00fcyor ama veritaban\u0131 sorgu s\u00fcresi artm\u0131\u015f. Loglar\u0131 a\u00e7\u0131yorsunuz. Ayn\u0131 endpoint\u2019e y\u00fczlerce farkl\u0131 parametreyle istek geliyor. Port 80 a\u00e7\u0131k. SSL aktif....\" \/>\n<meta property=\"og:url\" content=\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/\" \/>\n<meta property=\"og:site_name\" content=\"Perminet\" \/>\n<meta property=\"article:published_time\" content=\"2026-02-13T10:45:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png\" \/>\n\t<meta property=\"og:image:width\" content=\"312\" \/>\n\t<meta property=\"og:image:height\" content=\"161\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Furkan Y\u0131lmaz\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Furkan Y\u0131lmaz\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/\"},\"author\":{\"name\":\"Furkan Y\u0131lmaz\",\"@id\":\"https:\/\/perminet.com\/blog\/#\/schema\/person\/4fc5889f8c8cbe86d3969d4e24da2d0f\"},\"headline\":\"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi?\",\"datePublished\":\"2026-02-13T10:45:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/\"},\"wordCount\":1087,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/perminet.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png\",\"keywords\":[\"firewall\",\"hosting\",\"waf\"],\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/\",\"url\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/\",\"name\":\"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi? - Perminet\",\"isPartOf\":{\"@id\":\"https:\/\/perminet.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png\",\"datePublished\":\"2026-02-13T10:45:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#primaryimage\",\"url\":\"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png\",\"contentUrl\":\"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png\",\"width\":312,\"height\":161},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Anasayfa\",\"item\":\"https:\/\/perminet.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/perminet.com\/blog\/#website\",\"url\":\"https:\/\/perminet.com\/blog\/\",\"name\":\"Perminet Blog\",\"description\":\"T\u00fcrkiyenin Hosting Blogu\",\"publisher\":{\"@id\":\"https:\/\/perminet.com\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/perminet.com\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"tr\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/perminet.com\/blog\/#organization\",\"name\":\"Perminet Technology\",\"url\":\"https:\/\/perminet.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\/\/perminet.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/cropped-png-1.png\",\"contentUrl\":\"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/cropped-png-1.png\",\"width\":1238,\"height\":292,\"caption\":\"Perminet Technology\"},\"image\":{\"@id\":\"https:\/\/perminet.com\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/perminet.com\/blog\/#\/schema\/person\/4fc5889f8c8cbe86d3969d4e24da2d0f\",\"name\":\"Furkan Y\u0131lmaz\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\/\/perminet.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/fe71977e5b04b24b0d520946ae814b65fcb7e1daf05064a54ae3d6f33a55873f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/fe71977e5b04b24b0d520946ae814b65fcb7e1daf05064a54ae3d6f33a55873f?s=96&d=mm&r=g\",\"caption\":\"Furkan Y\u0131lmaz\"},\"url\":\"https:\/\/perminet.com\/blog\/author\/furkan\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi? - Perminet","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/","og_locale":"tr_TR","og_type":"article","og_title":"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi? - Perminet","og_description":"Gece saat 02:40. Sunucu izleme panelinde CPU dalgalan\u0131yor. Trafik normal g\u00f6r\u00fcn\u00fcyor ama veritaban\u0131 sorgu s\u00fcresi artm\u0131\u015f. Loglar\u0131 a\u00e7\u0131yorsunuz. Ayn\u0131 endpoint\u2019e y\u00fczlerce farkl\u0131 parametreyle istek geliyor. Port 80 a\u00e7\u0131k. SSL aktif....","og_url":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/","og_site_name":"Perminet","article_published_time":"2026-02-13T10:45:00+00:00","og_image":[{"width":312,"height":161,"url":"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png","type":"image\/png"}],"author":"Furkan Y\u0131lmaz","twitter_card":"summary_large_image","twitter_misc":{"Yazan:":"Furkan Y\u0131lmaz","Tahmini okuma s\u00fcresi":"6 dakika"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#article","isPartOf":{"@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/"},"author":{"name":"Furkan Y\u0131lmaz","@id":"https:\/\/perminet.com\/blog\/#\/schema\/person\/4fc5889f8c8cbe86d3969d4e24da2d0f"},"headline":"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi?","datePublished":"2026-02-13T10:45:00+00:00","mainEntityOfPage":{"@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/"},"wordCount":1087,"commentCount":0,"publisher":{"@id":"https:\/\/perminet.com\/blog\/#organization"},"image":{"@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#primaryimage"},"thumbnailUrl":"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png","keywords":["firewall","hosting","waf"],"inLanguage":"tr","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/","url":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/","name":"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi? - Perminet","isPartOf":{"@id":"https:\/\/perminet.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#primaryimage"},"image":{"@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#primaryimage"},"thumbnailUrl":"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png","datePublished":"2026-02-13T10:45:00+00:00","breadcrumb":{"@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#breadcrumb"},"inLanguage":"tr","potentialAction":[{"@type":"ReadAction","target":["https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/"]}]},{"@type":"ImageObject","inLanguage":"tr","@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#primaryimage","url":"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png","contentUrl":"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/perminet-waf-nedir.png","width":312,"height":161},{"@type":"BreadcrumbList","@id":"https:\/\/perminet.com\/blog\/waf-nedir-web-siteleri-icin-gercekten-gerekli-mi\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Anasayfa","item":"https:\/\/perminet.com\/blog\/"},{"@type":"ListItem","position":2,"name":"WAF Nedir? Web Siteleri \u0130\u00e7in Ger\u00e7ekten Gerekli mi?"}]},{"@type":"WebSite","@id":"https:\/\/perminet.com\/blog\/#website","url":"https:\/\/perminet.com\/blog\/","name":"Perminet Blog","description":"T\u00fcrkiyenin Hosting Blogu","publisher":{"@id":"https:\/\/perminet.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/perminet.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"tr"},{"@type":"Organization","@id":"https:\/\/perminet.com\/blog\/#organization","name":"Perminet Technology","url":"https:\/\/perminet.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"tr","@id":"https:\/\/perminet.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/cropped-png-1.png","contentUrl":"https:\/\/perminet.com\/blog\/wp-content\/uploads\/2026\/02\/cropped-png-1.png","width":1238,"height":292,"caption":"Perminet Technology"},"image":{"@id":"https:\/\/perminet.com\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/perminet.com\/blog\/#\/schema\/person\/4fc5889f8c8cbe86d3969d4e24da2d0f","name":"Furkan Y\u0131lmaz","image":{"@type":"ImageObject","inLanguage":"tr","@id":"https:\/\/perminet.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/fe71977e5b04b24b0d520946ae814b65fcb7e1daf05064a54ae3d6f33a55873f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/fe71977e5b04b24b0d520946ae814b65fcb7e1daf05064a54ae3d6f33a55873f?s=96&d=mm&r=g","caption":"Furkan Y\u0131lmaz"},"url":"https:\/\/perminet.com\/blog\/author\/furkan\/"}]}},"_links":{"self":[{"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/posts\/89","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/comments?post=89"}],"version-history":[{"count":1,"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/posts\/89\/revisions"}],"predecessor-version":[{"id":91,"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/posts\/89\/revisions\/91"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/media\/90"}],"wp:attachment":[{"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/media?parent=89"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/categories?post=89"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perminet.com\/blog\/wp-json\/wp\/v2\/tags?post=89"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}