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Instead of Detectify Surface Monitoring
Detectify Surface Monitoring alternatives
Detectify Surface Monitoring keeps watch over internet-facing assets, discovering domains, subdomains, IP addresses and ranges, open ports, and running technologies. It checks for vulnerabilities and misconfigurations with thousands of security tests, supports custom monitoring rules, and gives teams ways to filter and tag findings with remediation tips. Cloud connectors cover AWS, Azure, Cloudflare, and GCP, while integrations connect findings to development, messaging, alerting, and security tools.
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Nuclei
Free plan LinuxMacSelf-hosted+1Free, template-driven vulnerability scanning across multiple target types — Nuclei is a free, self-hosted scanner using over 6,500 community templates, rather than a cloud service for continuous asset monitoring.
Free plan Visit site - 2
OWASP ZAP
Free plan Open source APIExtensionLinux+3Free web application scanning with automation and add-ons — ZAP offers a free web scanner and proxy with active and passive scans, spidering, and YAML-based automation, rather than external asset discovery.
Free plan Visit site - 3
Wapiti
Free plan APILinuxMac+2Free website and REST API vulnerability scans — Wapiti crawls deployed applications and tests links, forms, and scripts, while Detectify focuses on continuously monitoring internet-facing assets.
Free plan Visit site - 4
Beagle Security
Free plan APIWebAutomated penetration testing for web apps, APIs, and GraphQL — Beagle Security automates penetration testing and can test recorded business-logic flows, rather than focusing on continuous external asset discovery.
Free plan · paid from $99/mo (annual) · 14-day trial Visit site - 5
Qualys External Attack Surface Management
Free trial APILinuxWebExternal asset attribution and unmanaged-resource detection — Qualys adds asset ownership mapping, shadow IT detection, and TruRisk scoring to continuous external asset monitoring.
Free plan · pricing on request Visit site - 6
ZeroThreat
Free plan APIWebAutonomous web and API penetration testing with exploit evidence — ZeroThreat provides reproducible exploit evidence and tests authenticated workflows and multiple API types, rather than emphasizing external asset discovery.
Free plan · paid from $25 Visit site - 7
ImmuniWeb
Free plan AndroidAPIiPhone+1Combined attack-surface, web, API, and mobile security services — ImmuniWeb combines attack-surface monitoring with web, API, mobile, cloud, and network security testing.
Free plan · paid from €395 Visit site - 8
Cloudbric
Free plan AndroidAPIExtension+4 - 9
ModSecurity
Free plan LinuxMacSelf-hosted+1 - 10
OWASP Coraza WAF
Free plan APILinuxMac+1 - 11
MalCare
Free plan Self-hostedWeb - 12
Patchstack
Free plan APIWeb - 13
SiteLock
Free plan Self-hostedWeb - 14
Acunetix
Free trial APILinuxSelf-hosted+2 - 15
Virusdie
Free plan APIWeb - 16
Shield Security
Free plan Web - 17
Astra Security
Free trial APIWeb - 18
Google Cloud Secret Manager
Free plan Web - 19
AWS WAF
Paid APIWeb - 20
Cloudflare Advanced Certificate Manager
Paid APIWeb - 21
Invicti
Paid APISelf-hostedWeb - 22
NinjaFirewall
Free plan - 23
Quttera
Free plan Web - 24
Azure Web Application Firewall
Paid Web - 25
Barracuda Web Application Firewall
Paid Web - 26
F5 WAF for Distributed Cloud
Paid Web - 27
Fastly Next-Gen WAF
Paid LinuxWeb - 28
FortiWeb
Paid Web - 29
Imperva Web Application Firewall
Paid Web - 30
Rapid7 InsightAppSec
Paid WebWindows - 31
Radware Cloud WAF Service
Paid Web
Its ongoing asset visibility may be more than a team needs if the priority is testing a particular application or API. Surface Monitoring starts at €90/mo, and each plan adds a per-domain cost; extra assets, environments, and IP ranges can also add cost. It is cloud-deployed and lists API and web platforms. Alternatives differ in focus: some offer free open-source scanning, while others add penetration testing, asset attribution, or mobile testing. Compare whether continuous discovery or application-level testing matters more, and consider deployment, supported targets, authentication needs, reporting, and the cost structure before switching.
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