HEAD-TO-HEAD · FACTS ONLY
Censys vs IONIX: exposure management facts side by side
SHORT ANSWER
Censys describes 3 of the five tool types on the pages we read and IONIX describes 5; they differ on exposure management platforms and WAF posture. On proof, Censys describes exploitability checks but not attack-style testing and IONIX describes safe checks but not attack-style testing. We do not score either; the right choice depends on your estate, current platform, WAFs and capacity to fix.
By The Exposure Desk · Exposure Management Finder · Published 2026-10-11
Desk research from public vendor pages read in September 2026, updated 2026-10-11. Profiles follow our published method; we did not run the products.
How do their shapes compare?
- Censys ASM
- IONIX
- Outer point: described on the vendor's pages we read
- Inner point: not in our sources (it may exist; we did not find it)
What are the facts, side by side?
| Fact | Censys ASM | IONIX |
|---|---|---|
| Positioning | Censys's external exposure management product, built on first-party scanning of all 65K ports and the Censys Internet Map. | An ASM and exposure management platform that maps subsidiaries and the digital supply chain, validates exploitability with non-intrusive tests, and invokes compensating controls such as WAF rules, with humans approving what agents do. |
| Deployment | Discovery expands from seeds the customer adds in the console or through the API; assets found beyond the seeds appear under a Found by Censys tab. Source: Censys docs: seed your attack surface · Read 27 Sep 2026 | SaaS with a customer portal at portal.ionix.io; discovery uses 13 techniques and reaches third- and fourth-party assets. Source: IONIX attack surface discovery · Read 27 Sep 2026 |
| EASM discovery | Described First-party scanning across all 65K ports finds services on nonstandard ports and hosts with self-signed certificates. Source: Censys external exposure management · Read 27 Sep 2026 | Described Discovery with 13 techniques, including third- and fourth-party assets in the digital supply chain. Source: IONIX attack surface discovery · Read 27 Sep 2026 |
| Exposure validation | Described Confirms reachability and applies EPSS and KEV; active exploitation testing is not described. Source: Censys external exposure management · Read 27 Sep 2026 | Described Non-disruptive active exploitability testing; for new CVEs, safe, non-intrusive validation tests built from public proof-of-concept exploits. Source: IONIX Live Exposure Defense · Read 11 Oct 2026 |
| Exposure management platformsDiffers | Not in our sources | Described Describes a six-stage workflow for external exposure; internal vulnerability or identity data are not described on the pages we read. Source: IONIX homepage · Read 27 Sep 2026 |
| CTEM programme support | Described Discovery, prioritisation with EPSS and KEV, rapid response alerts and remediation tasks; exploit validation is not described. Source: Censys external exposure management · Read 27 Sep 2026 | Described Describes a six-stage workflow (discovery, inventory, assessment, validation, prioritization, remediation) and a CTEM use case "that detects and acts in real time". Source: IONIX homepage (re-read) · Read 11 Oct 2026 |
| WAF postureDiffers | Not in our sources | Described WAF Posture Management identifies WAFs across Akamai, Cloudflare, AWS, Azure, Imperva, Barracuda, Fortinet, Palo Alto Networks, Fastly and 50+ others, and turns a CVE into a deployable WAF rule within 12 hours of publication. Source: IONIX WAF Posture Management · Read 27 Sep 2026 |
| Subsidiary and owner attributionDiffers | Not in our sources | Matches Describes agentic corporate, subsidiary and brand discovery and attributes each asset to a subsidiary or business owner, including assets that arrive through M&A. Source: IONIX homepage (re-read) · Read 11 Oct 2026 |
| Internal as well as external assets | Not in our sources | Not in our sources |
| Cloud connections named | Matches Names AWS, Google Cloud and Azure among its integrations. Source: Censys integrations · Read 27 Sep 2026 | Matches Names Wiz and Palo Alto Prisma Cloud among its integrations. Source: IONIX exposure validation · Read 27 Sep 2026 |
| Exploitability checkedDiffers | Partly Reachability confirmation and EPSS and KEV scoring, not exploitation. Source: Censys external exposure management · Read 27 Sep 2026 | Matches Non-intrusive exploit simulations. Source: IONIX exposure validation · Read 27 Sep 2026 |
| Attack-style testingDiffers | Not in our sources | Partly Validation uses safe, non-intrusive tests built from public proof-of-concept exploits; attack-agent or red-team style testing is not described. Source: IONIX Live Exposure Defense · Read 11 Oct 2026 |
| Works through your WAF or edgeDiffers | Not in our sources | Matches Delivers WAF rules for new CVEs into remediation workflows. Source: IONIX WAF Posture Management · Read 27 Sep 2026 |
| WAF coverage across several vendorsDiffers | Not in our sources | Matches Finds unprotected assets, checks enforcement status and detects configuration drift across WAF deployments from 50+ vendors. Source: IONIX blog: WAF Posture Management launch · Read 27 Sep 2026 |
| Retests after a fixDiffers | Not in our sources | Matches IONIX's homepage lists "Instant re-validation of remediated items". Source: IONIX homepage (re-read) · Read 11 Oct 2026 |
| Routes findings to owners and tickets | Matches Auto-creates, routes and tracks remediation tasks. Source: Censys external exposure management · Read 27 Sep 2026 | Matches Integrations with Jira, ServiceNow, Slack, Splunk and Cortex XSOAR. Source: IONIX exposure validation · Read 27 Sep 2026 |
| Applies a compensating controlDiffers | Not in our sources | Matches Describes agentic mitigation that "automatically invoke[s] compensating controls": WAF rules deployable via Akamai, Cloudflare or other supported WAF vendors, and Active Protection for dangling assets and DNS hijacking targets. Source: IONIX Live Exposure Defense · Read 11 Oct 2026 |
| Price or pricing basis publishedDiffers | Partly ASM is contact sales; a free platform account exists and credits start at $100. Source: Censys pricing · Read 27 Sep 2026 | Matches AWS Marketplace lists Silver, Gold and Platinum plans at $25,000, $35,000 and $45,000 a month on a 1-month contract. Source: AWS Marketplace: IONIX Attack Surface Management · Read 11 Oct 2026 |
| Trial or self-serve startDiffers | Partly A free Censys platform account exists; ASM itself is sold through sales. Source: Censys pricing · Read 27 Sep 2026 | Not in our sources |
| Platform it extends | None | None |
| Integrations | Webex, Slack, Jira, ServiceNow ITSM, Tenable VM, Google Security Operations, Microsoft Sentinel, ServiceNow CMDB, Axonius, Brinqa, AWS, Google Cloud and Azure. Source: Censys integrations · Read 27 Sep 2026 | Names Jira, ServiceNow, Splunk, Microsoft Azure Sentinel, Cortex XSOAR, Slack, Wiz and Palo Alto Prisma Cloud, plus an API, on its validation page. No integrations list is published: ionix.io/integrations returned a 404 in September and the partners page lists none. Source: IONIX exposure validation · Read 27 Sep 2026 |
| Price | ASM: contact sales. A free Censys platform account exists, and credits start at $100. Source: Censys pricing · Read 27 Sep 2026 | AWS Marketplace, 1-month contract, per month: Silver Plan (monthly monitoring) $25,000; Gold Plan (weekly monitoring) $35,000; Platinum Plan (continuous monitoring) $45,000. 12-, 24- and 36-month contracts are offered, with savings of up to 10% (24 months) and 20% (36 months). Sold as SaaS by IONIX.IO. Source: AWS Marketplace: IONIX Attack Surface Management · Read 11 Oct 2026 |
Where do they differ?
- Exposure management platforms: Censys is not in our sources; IONIX describes it.
- WAF posture: Censys is not in our sources; IONIX describes it.
- Subsidiary and owner attribution: Censys is not in our sources; IONIX matches.
- Exploitability checked: Censys partly matches; IONIX matches.
- Attack-style testing: Censys is not in our sources; IONIX partly matches.
- Works through your WAF or edge: Censys is not in our sources; IONIX matches.
- WAF coverage across several vendors: Censys is not in our sources; IONIX matches.
- Retests after a fix: Censys is not in our sources; IONIX matches.
- Applies a compensating control: Censys is not in our sources; IONIX matches.
- Price or pricing basis published: Censys partly matches; IONIX matches.
- Trial or self-serve start: Censys partly matches; IONIX is not in our sources.
Choose Censys if
- Your team hunts threats and wants raw internet scan evidence
- You need findings in ServiceNow CMDB, Microsoft Sentinel or Tenable VM
Choose IONIX if
- You have many subsidiaries or acquisitions and need each asset tied to an owner
- Your fastest fix is usually a WAF rule rather than a patch
Which limits should you check?
Censys
- Discovery starts from seeds you supply.
- No exploit validation or mitigation is described on the pages we read.
IONIX
- Validation uses safe, non-intrusive tests; CyCognito, Hadrian and watchTowr describe more aggressive attack-style testing.
- Internal (behind the firewall) assets are not described on the pages we read.
- No integrations list is published, and the lowest AWS Marketplace plan is $25,000 a month.
Questions readers ask
Is Censys or IONIX better?
Neither is scored on this site. Censys describes 3 of five tool types and IONIX 5 on the pages we read, and they differ on 11 recorded facts. Which fits depends on your estate, current platform, need for proof, WAFs and capacity to fix; the finder checks those.
Which of the two proves exploitability?
Censys: exploitability checked: Partly; attack-style testing: Not in our sources. IONIX: exploitability checked: Matches; attack-style testing: Partly.
Do Censys or IONIX publish prices?
Censys: ASM: contact sales. A free Censys platform account exists, and credits start at $100. IONIX: AWS Marketplace, 1-month contract, per month: Silver Plan (monthly monitoring) $25,000; Gold Plan (weekly monitoring) $35,000; Platinum Plan (continuous monitoring) $45,000. 12-, 24- and 36-month contracts are offered, with savings of up to 10% (24 months) and 20% (36 months). Sold as SaaS by IONIX.IO.