Choose a common host or paste a URL. Inspect DNS, security signals and next steps.
選常用網域或貼上網址，查看 DNS、安全訊號與下一步。
Cache-Control: private, no-store). IP is masked by default for screenshot safety.private, no-store 阻絕跨站讀取）。IP 預設打碼，方便安心截圖分享。Short answer: it won't raise your speed cap — but it isn't nothing. Here's the real split, without the marketing.
簡短答案：它絕對不會提高你的頻寬上限 —— 但也並非完全沒用。跳出都市傳說，這是底層網路協定真正的分工邊界：
Why this happens: Before a single byte downloads, your device asks DNS for the CDN's IP address. If your ISP's resolver times out or lacks EDNS Client Subnet / local peering, the CDN hands you an overseas mirror. Switching resolvers can immediately point you to a closer edge server.
Test No-ECS vs. ECS resolvers (1.1.1.1, 8.8.8.8, 9.9.9.11, 208.67.222.222) and compare their answers; test actual download performance on your device.
Leave it on Automatic on modern consoles. Manual MTU tweaks are mostly cargo-cult.
Let it download in rest mode — consoles give downloads more resources when nothing else runs.
Ethernet over Wi-Fi, and download off-peak — CDN and ISP congestion is often the real cap.
用上方評選工具實測 No-ECS 與 ECS 解析器（1.1.1.1、8.8.8.8、9.9.9.11、208.67.222.222），比較解析結果，並在原設備驗證實際下載效果。
在現代主機上請維持 自動（Automatic / 1500）。手動改小 MTU 多半是犧牲封包效率的都市傳說。
關閉背景遊戲並進入待機模式（Rest Mode）下載 —— 主機在背景有遊戲執行時，會主動限制網路佇列與 CPU 資源。
用 實體網路線（Ethernet）取代隔牆 Wi-Fi，並避開晚間尖峰 —— 多數時候真正的上限是無線重傳與 ISP 互連塞車。
Our 6 built-in security resolvers and one-click custom DoH presets evaluate domains against the most trusted open-source DNS blocklists and threat intelligence feeds — synced upstream every 5 to 60 minutes with zero local query logging.
本站內建的 6 大資安防毒 DNS 與上方一鍵自訂 DoH 按鈕，底層整合了全球社群最權威的開源防護清單與威脅情資庫（上游每 5～60 分鐘自動更新，本站零查詢留存），你也可以直接點選加入實測或設定於路由器／AdGuard Home／Pi-hole：
Open-source threat intelligence feed (github.com/hagezi/dns-blocklists) blocking malware, phishing, scam, C2 botnets, and newly registered malicious domains.
GitHub 指標性開源防護庫（hagezi/dns-blocklists），涵蓋 TIF 威脅情資、釣魚詐騙、殭屍網路 C2 與惡意軟體散佈網域，誤殺率極低。
Community-curated blocklist (oisd.nl) engineered so "it works without breaking websites" — blocks phishing, malware, spyware, and intrusive trackers.
以「零誤殺、不破壞正常網站與遊戲連線」聞名的社群開源規則集（oisd.nl），攔截釣魚、惡意程式、加密貨幣詐騙與背景追蹤器。
Swiss non-profit threat feeds (URLhaus, ThreatFox, Feodo Tracker) tracking active malware payloads, ransomware distribution, and botnet command-and-control hosts.
瑞士非營利資安計畫（URLhaus、ThreatFox、Feodo Tracker），每 5～15 分鐘更新活躍惡意載荷、勒索軟體中繼站與木馬 C2 伺服器清單。
Open-source AdGuardSDNSFilter and phishing blocklists combining AdGuard Base, EasyList, and community anti-scam rules.
開源 AdGuardSDNSFilter 專案，整合 EasyList、惡意廣告與假冒登入頁攔截規則，廣泛用於 AdGuard Home 與公共防毒 DNS。
Aggregated open-source credential-phishing lists (phishing.army, OpenPhish, PhishTank, Spamhaus DBL) targeting fake banking, wallet, and login domains.
聚合 phishing.army、OpenPhish、PhishTank 等開源反釣魚情資，專責攔截假冒銀行、遊戲帳號盜取、電商與加密錢包釣魚網域。
Classic open-source unified hosts (StevenBlack/hosts, badmojr/1Hosts) and RethinkDNS Sky aggregator with 190+ selectable open blocklists.
經典開源 StevenBlack/hosts、badmojr/1Hosts 與 RethinkDNS Sky 開源規則聚合器，支援嚴格隱私與反遙測過濾。
Born from a free, public-good DNS (34.80.2.188 · DoT ns.dnsviewer.org) that was kept running for years — just to help people whose downloads were too slow, right when they'd bought a game and wanted to play. Same spirit here: a clean tool that tells you the truth and asks nothing back.
源自當年默默維護多年的一座免費公益 DNS（34.80.2.188 · 私人 DNS ns.dnsviewer.org）—— 初衷只是為了幫那些剛買了遊戲、下班只想好好玩一場，卻被下載速度卡住的玩家。這裡延續同樣的精神：給你一把乾淨的工具、講真話，而且不向你索取任何東西。