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Ddun alternatives & similar sites

D盾防火墙 — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Information And Network Security →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
d99net.cn ↗	100 match 1 shared topics	D盾防火墙	China zh	information-and-network-security	robotsllmsaihumans	emailphone	none
cssw.net ↗	69 match 1 shared topics	网神SecGate3600防火墙	zh	information-and-network-security	robotsllmsaihumans	emailphone	none
7-cloud.com ↗	63 match 1 shared topics	海外高防CDN\|高防cdn\|CDN加速\|防DDOS\|WAF防火墙\|防CC\|CDN云防护\|全球覆盖-DDOS防御专家	zh	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
defx.cn ↗	61 match 1 shared topics	DefenderX - X卫士 - 勒索病毒免费防护服务器安全运维软件	China zh	information-and-network-security	robotsllmsaihumans	email phone	none
jcwlyf.com ↗	61 match 1 shared topics	精创网络 - 专业DDoS防御、CC攻击防护与WAF服务提供商	zh	information-and-network-security	robotsllmsaihumans	emailphone	none
jisu10.com ↗	61 match 1 shared topics	超速安全 - APK过毒免杀 \| 域名防红跳转 \| 专业安卓加固 \| 微信防红	zh	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
ddoswaf.cn ↗	61 match 1 shared topics	云铠T级高防 - 专业DDoS防护与云安全服务提供商	China zh	information-and-network-security	robotsllmsaihumans	emailphone	none
mdwlzy.com ↗	60 match 1 shared topics	名盾网络验证系统 - 专业的软件收费系统-专为EXE成品语言软件添加网络验证而打造的网络防破解验证-免费的网络验证	zh	information-and-network-security	robotsllmsaihumans	emailphone	none
qssp-me.com ↗	60 match 1 shared topics	国盾量子安全产品官网 - 量子加密耳机、密盘、密邮、密会、密身、密钉	zh	information-and-network-security	robotsllmsaihumans	emailphone	none
adsec.com.cn ↗	60 match 1 shared topics	凹盾(北京)科技有限公司	China zh	information-and-network-security	robotsllmsaihumans	emailphone	none
doosit.cn ↗	60 match 1 shared topics	Doosit's Blog \| 记录青春的足迹！	China zh	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
fisec.cn ↗	60 match 1 shared topics	加密机_密码卡_签名验签服务器-渔翁信息	China zh	information-and-network-security	robotsllmsaihumans	email phone	none
fangqieting.cn ↗	60 match 1 shared topics	反窃听检测\|反窃听服务\|反窃听检测上门服务公司-凌云隐私防护	China zh	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
1stopcomputers.org ↗	60 match 1 shared topics	WG包网系統：領先WireGuard協議加密，打造全港最安全的自動出款平台	zh	information-and-network-security	robotsllmsaihumans	emailphone	none
360cdn.com ↗	60 match 1 shared topics	360高防cdn_免备案cdn加速服务_免费cdn_高防IP_sdk游戏盾_360CDN	zh	information-and-network-security	robotsllmsaihumans	emailphone	none
aastorex.com ↗	60 match 1 shared topics	Home - Aastorex	zh	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
achengyun.com ↗	60 match 1 shared topics	成云网络	zh	information-and-network-security	robotsllmsaihumans	email phone	none
doosit.com ↗	60 match 1 shared topics	Doosit's Blog \| 记录青春的足迹！	zh	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.