Alibaba Cloud DNS_智能 DNS 管理_網站域名管理-阿里雲

0.0.201

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Alibaba Cloud DNS (Domain Name System，簡稱 DNS) 是安全快速、穩定可靠的權威 DNS 解析管理服務，為企業和開發人員將方便管理識別的域名轉換為電腦用於互聯通訊的數碼 IP 位址，從而將用戶存取路由到相應的網站或應用程式伺服器。

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優點

: 穩定可靠
提供100%的服務可用性保障，確保用戶的網站或應用持續在線並穩定運行。

: 安全保障
每秒可承受過億次DNS查詢，保障網站或應用服務免受DNS攻擊威脅。

: 智能解析
支援全球 6 大洲 88 個國家/地域精細劃分，可根據用戶地理位置進行智能判斷，提供最佳存取解析地址，為用戶締造完美存取體驗。

: 全球節點
全球20個DNS集群節點和DNS智能加速服務。可為用戶提供就近訪問和最低延遲的解析能力。

產品詳情

全球 BGP Anycast 網絡

記錄類型

支持A、AAAA、CAA、MX、CNAME、TXT、NS、SRV 記錄類型

URL轉發（302）

支持隱性/顯性URL轉發，最高上限10條

子域管理

支持二級、三級子域獨立授權管理，且記錄數量不限制

最低TTL值

域名變更生效時間（TTL最低支持1秒）

負載均衡（單域名、單線路的IP地址容量）

最高上限100條

加權輪詢

支持A記錄、CNAME記錄

查詢量统计

支持主域名、子域名緯度的解析請求量數據統計
內置 DNS 安全功能

運營商線路

支持聯通、電信、移動、教育網、鵬博士、廣電網

運營商線路細分

支持6大運營商可細分至31省份

地域線路

支持華東、華南、華中、華北、西北、東北、西南

地域線路細分

支持中國7大區可細分至31省份

境外線路

支持大洋洲、亞洲、歐洲、北美洲、南美洲、非洲

境外線路細分

支持6大洲細分至88個國家/地區

自定義線路

支持按照自定義IP範圍的智能解析線路
智能解析

DNS查詢攻擊

支援中國五大營運商、全球 6 大洲 87 個國家/地域劃分，能夠智能判斷並提供最佳存取地址，讓用戶獲得最流暢的存取體驗，
秒速解析流暢高效

災難恢復備份

DNS 全球傳播時間 <10 秒；如域名記錄變更，可幫用戶實現秒級生效。

負載均衡

當輔助DNS與您原有DNS同時對外提供解析服務時，可以達到流量負載均衡的效果；您也可以選擇保護原有DNS系統，對外只讓輔助DNS提供域名解析服務

安全高效

使用輔助DNS，能讓您享受到阿里雲解析DNS全球佈點接入帶來的高效解析服務，同時獲得雲解析DNS的DDOS攻擊防護能力
DNS 負載均衡

節點覆蓋範圍廣

有助用戶加權分配流量，避免單點故障。

實時監控告警

7x24小時監測，第一時間發出異常警告，有效幫助運維用戶提前發現異常。

緩解DNS劫持

實時監測域名劫持狀態，可在一定程度上降低DNS劫持概率。

提升解析速度

減少公共DNS遞歸過程，加快域名解析速度。
DNS IPv6

IPv6支持

支持IPv6地址的AAAA記錄，同時提供支持IPv6地址訪問的DNS伺服器
批量域名解析

高效快速

批量任務處理速度快，最快10分鐘可處理1萬條解析記錄；批量任務後台異步處理，提高工作效率。

功能全面

擁有靈活的批量域名解析功能，支持批量添加、修改、刪除解析記錄，可批量分組管理域名、批量託管非阿里註冊域名、批量刪除域名。

能力開放

專門的批量域名解析openAPI，為您提供自定義域名解析工具的可靠基礎服務能力，詳情可查看幫助中心-API說明。
全球節點

中國節點

張家口、北京、石家莊、成都、武漢、上海、杭州、深圳、香港

海外節點

東京、新加坡、馬來西亞、美東、美西、迪拜、澳大利亞、印度、德國、印尼、倫敦

經典使用場景

多線路智能化解析服務

使用加權輪詢、GeoDNS等DNS路由技術，以及結合應用程序健康檢查實現服務的自動故障屏蔽和Failover

優點

分佈式健康檢查

從各個地區，對應用程序進行實時監控，及時發現宕機異常
多線路負載均衡

負載均攤、加權輪詢算法，根據業務需要將用戶訪問流量路由至最佳服務節點。
故障地址自動屏蔽

對發現故障的IP地址，進行自動屏蔽，降低故障中斷時間

可防禦DNS查詢攻擊

對於直播、視頻、遊戲、社交類型的用戶，可以通過購買DNS安全+高防IP配合使用，在解析請求和網站站點兩個方面都添加了防護措施，網站會更安全

優點

Anti-DDoS 保障

解決向受害者DNS服務器發送大量DNS解析請求包，導致業務中斷
頻寬耗盡型的DNS反彈式拒絕服務攻擊

解決大量主機偽造受害者ip向互聯網上的大量開放式遞歸DNS服務
器發送查詢請求包，堵塞受害DNS服務器的網絡，導致業務中斷
可承受每秒過億次DNS查詢

解決大型企業業務訪問量高，QPS解析查詢量高的問題