Find the third parties your inventory doesn't track.
Most organizations know about their procured vendors. They don't know about the SaaS tools individual teams signed up for, the CDN their development team integrated, the analytics provider that ended up in marketing's stack. Smart Third-Party Discovery starts from your existing vendor list and expands outward through external infrastructure signals to surface the third parties you're actually depending on.
Discover the vendor footprint actually in use.
Discovery starts from two inputs: your formal vendor inventory (uploaded or integrated from your procurement system), and your own external surface (the assets EASM monitors). From those, Deepinfo expands outward through infrastructure signals: subdomains pointing to vendor-controlled CNAMEs, certificates issued to vendor infrastructure, third-party scripts loaded by your web properties, MX records routing through SaaS email vendors.
Each discovered candidate enters a vendor approval queue with classification (which category of third party: payment, analytics, CDN, SaaS, infrastructure), evidence (the infrastructure signal that surfaced it), and risk-relevance assessment (how exposed is your environment to this vendor's posture). Your team approves vendors into the monitored portfolio or sets them aside.
Three discovery techniques, working from your environment.
External infrastructure inference reveals vendors visible from outside. Web-property detection catches scripts and embedded services. Inventory expansion finds scope creep on vendors already on the list.
External infrastructure inference.
Subdomain CNAMEs pointing to vendor-controlled infrastructure. Certificates issued by SSL providers tied to specific platforms. MX records routing through SaaS email providers. The footprint visible from outside reveals the vendors actually in your stack.
Web-property third-party detection.
Scripts loaded by your web properties (analytics, advertising, customer-data platforms, A/B testing). Iframes and embedded services. Third-party tag managers. Each adds a vendor to the picture, often without procurement awareness.
Inventory expansion via infrastructure overlap.
Your formal vendor list paired with infrastructure signals: when a vendor on the list also operates infrastructure that touches your environment in unexpected ways, the additional touchpoints surface. Useful for catching vendor scope creep that's gone unmonitored.
Examples of vendor categories typically discovered.
CDN providers
Content-delivery vendors routing your traffic, often integrated by development teams without procurement involvement.
Analytics platforms
Analytics scripts loaded by your web properties, surfacing customer-data vendors that may not be in the inventory.
SaaS email infrastructure
Email providers in your MX routing, including separate vendors per business unit or per regional brand.
Payment processors
Payment vendors integrated into your checkout flows, including multi-vendor or fallback configurations.
Customer-data platforms
CDPs and customer-data vendors receiving your customer data via direct integration or tag manager.
Authentication providers
Identity providers and SSO vendors in your login flows, including those scoped to specific applications.
Tag managers and A/B testing services
Tag managers and experiment platforms loading on your properties, often inheriting access to first-party data.
Vendor-controlled subdomains
Subdomains on your DNS pointing to vendor-controlled infrastructure (status pages, support portals, marketing landing pages).
Discovery feeds continuous monitoring.
Every approved vendor enters the monitored portfolio. From that point, Continuous Monitoring runs the same external scanning that EASM applies to your own surface, across the third party's external infrastructure. Comprehensive Risk Assessments classify findings, Automated Risk Scoring rolls them up into per-vendor risk scores, and Compliance Tracking maps everything to your compliance framework. One workflow.
“Procurement-tracked vendors are only part of the picture. Discovery found analytics tools, regional CDNs, and SaaS apps individual teams signed up for; we surfaced and triaged each one inside the first quarter.”
Explore the full platform.
See your entire attack surface. Act on what matters.
Continuous discovery and monitoring of every internet-facing asset, including subsidiaries and acquired companies.
See module CTI · CYBER THREAT INTELLIGENCESee what’s exposed. Act before it’s exploited.
Dark-web monitoring, breach corpora, infostealer logs, and threat-actor activity tied to your organization.
See module BRP · BRAND RISK PROTECTIONKeep an eye on the internet. Protect your brand.
Lookalike domains, fake apps, fraudulent listings, and brand abuse caught in hours, not weeks.
See module TPRM · THIRD-PARTY RISK MANAGEMENTEvery third party carries risk. See all of it.
Continuous external monitoring of every approved vendor with the same depth as your own surface.
See module DSI · DEEP SEARCH AND INSIGHTSExplore the entire internet. See every layer.
400M domains, 2B subdomains, 200B DNS records, 30B SSL certificates. All queryable directly.
See moduleSee which third parties are in your stack but not in your inventory.
Book a demo. We'll run discovery against your environment and walk through the candidate queue.