ASM Comparison
HailBytes ASM vs Axonius
Both land on the same shortlist when a security team goes looking for “ASM” tooling. They solve different halves of the problem — and understanding the gap determines which one you actually need.
TL;DR
Axonius is a CAASM (Cyber Asset Attack Surface Management) platform: it connects to 800+ existing security and IT tools via adapters and aggregates a unified asset inventory from what those tools already know. It excels at finding coverage gaps — assets not enrolled in your EDR, or servers not scanned by your vuln scanner. HailBytes ASM is an EASM (External Attack Surface Management) platform: it actively discovers internet-facing assets your existing tools have never seen through recon pipelines (subdomain enumeration, port scanning, nuclei templates, directory fuzzing), then monitors them continuously.
- Pick HailBytes ASM if your concern is the internet-facing attack surface — unknown subdomains, exposed services, external vulnerabilities — especially for MSSP delivery, pen-test enrichment, or continuous external monitoring.
- Pick Axonius if your concern is internal asset inventory: finding every managed and unmanaged device across your existing tools and ensuring nothing falls through the security-coverage cracks.
- Run both if you need external discovery and internal aggregation. They address opposite ends of the same asset-visibility problem and don’t overlap meaningfully.
The Core Distinction: Active Recon vs Connector Aggregation
| Dimension | HailBytes ASM | Axonius |
|---|---|---|
| Category | EASM — External Attack Surface Management | CAASM — Cyber Asset Attack Surface Management |
| How it finds assets | Active recon: subdomain enumeration, port scanning, crawling, fuzzing | Passive aggregation: reads from 800+ existing tool APIs and cloud APIs |
| Discovers unknown assets | ✅ Core capability — finds assets no tool knew existed | ❌ Only sees what your connected tools already report |
| Identifies security-coverage gaps | 🟡 Surfaces exposed services; no EDR/AV layer awareness | ✅ Core capability — “which assets aren’t in CrowdStrike?” |
| Vulnerability scanning | ✅ 30+ tools including Nuclei (auto-updating CVE templates), Nmap, Dalfox, S3 Scanner | 🟡 Ingests vuln data from connected scanners; no independent scanning |
| Internet-facing asset focus | ✅ Designed for it | 🟡 Can surface internet-facing context, not the primary use case |
| Internal/on-prem device discovery | ❌ Not the use case | ✅ Core capability |
Pricing & Cost Model
| Dimension | HailBytes ASM | Axonius |
|---|---|---|
| Pricing axis | Infrastructure ($0.24/vCPU/hour) | Per managed device / asset (enterprise contract) |
| Annual cost (small team, ~1,000 devices) | ~$4,200 | ~$50,000–$80,000 |
| Annual cost (mid-size, ~10,000 devices) | ~$4,200–$8,400 | ~$120,000–$250,000 |
| Annual cost (enterprise, 50,000+ devices) | ~$8,400–$17,000 | $300,000–$500,000+ |
| Cost scales with… | VM size (vCPU count) | Number of managed devices |
| Free trial | 30 days via AWS / Azure Marketplace | Sales-led POC |
| Procurement path | Cloud marketplace (counts toward AWS EDP / Azure MACC) | Direct enterprise contract |
| Minimum deal size | No minimum — marketplace self-serve | Typically $50,000+ per year |
HailBytes ASM pricing is fixed to the underlying VM; it doesn’t scale with the number of assets you discover. Running a recon pipeline against 10 targets or 10,000 targets costs the same VM-hour.
Architecture & Control
| Dimension | HailBytes ASM | Axonius |
|---|---|---|
| Deployment model | Self-hosted in your AWS or Azure account | SaaS (Axonius-hosted) with optional on-prem deployment |
| Source code access | Full ELv2 source-available | Closed source |
| Data residency | Your chosen AWS / Azure region | Axonius-controlled SaaS regions (or your DCs for on-prem) |
| Adapters / integrations | 30+ recon tools built in; REST API + cloud connectors (AWS, Azure, GCP, Cloudflare) | 800+ adapters to existing security and IT tools |
| Custom scan logic | ✅ Custom wordlists, Nuclei templates, add-your-own recon tools | ❌ Connector-based; no active scanning logic |
| Per-tenant isolation | One VM per tenant — clean boundary for MSSPs | Multi-tenant SaaS or separate on-prem instance |
| Government cloud support | ✅ AWS GovCloud + Azure Government | 🟡 On-prem available; GovCloud support varies by contract |
Capability Comparison
| Capability | HailBytes ASM | Axonius |
|---|---|---|
| Subdomain enumeration (multi-source) | ✅ subfinder, amass, assetfinder, ctfr, tlsx + more | ❌ Reads from connected tools only |
| Port & service scanning | ✅ Nmap, Naabu | ❌ |
| Web technology fingerprinting | ✅ httpx, Wappalyzer | ❌ |
| CVE / vulnerability scanning | ✅ Nuclei (auto-updating), Dalfox, crlfuzz | 🟡 Aggregates vuln data from connected scanners |
| Directory & file fuzzing | ✅ ffuf, dirsearch | ❌ |
| Screenshot capture | ✅ gowitness | ❌ |
| Email security posture (SPF/DKIM/DMARC/BIMI) | ✅ Built-in, graded A–F | ❌ |
| WAF detection | ✅ wafw00f | ❌ |
| Unified asset inventory across tools | 🟡 Limited to discovered external assets | ✅ Core capability — all devices, all tools, one view |
| Security-coverage gap analysis | ❌ | ✅ “Which assets lack EDR / vuln scanner coverage?” |
| Software inventory (SBOM / SaaS) | ❌ | ✅ Software, SaaS, cloud account inventory |
| AI-powered analysis | ✅ OpenAI + Ollama (local GPU — NVIDIA CUDA + AMD ROCm) | ✅ Axonius AI — natural-language asset queries |
| MCP server / AI-agent orchestration | ✅ Built-in (Claude, Cursor, Windsurf) | ❌ |
| Continuous monitoring / scheduled scans | ✅ Hatchet cron workflows at any interval | ✅ Continuous adapter polling |
| SIEM integration | ✅ Splunk HEC, Sentinel, CrowdStrike LogScale, Wiz Issues, Syslog/CEF, Webhook, Jira, ServiceNow | ✅ SIEM push via connectors |
| RBAC & multi-tenancy | ✅ Project-based isolation, 3 roles, SCIM 2.0 provisioning | ✅ Enterprise RBAC |
| White-label / client deliverables | ✅ Full white-label: custom branding, PDF reports | ❌ |
| REST API with OpenAPI docs | ✅ 40+ endpoints | ✅ Axonius Platform API |
When HailBytes ASM Wins
- Unknown internet-facing assets are the threat. HailBytes ASM actively discovers subdomains, ports, services, and web applications that no existing tool has ever catalogued. Axonius will never find an asset that isn’t already in one of your connected tools.
- Pen-test firms and MSSPs needing external recon deliverables. White-label branded reports + a fixed per-instance cost means external ASM can be offered profitably to clients at any scale. See the MSSP page.
- Continuous vulnerability scanning, not just inventory. HailBytes runs Nuclei templates, directory fuzzing, and XSS scans against your external surface. Axonius ingests findings from a scanner you already run.
- Infrastructure-priced scaling. Scan 50 or 50,000 subdomains for the same VM-hour. Axonius pricing scales with every device added to your inventory.
- Regulated industries requiring full data control. Self-hosted in AWS GovCloud or Azure Government — scan data never leaves your account.
- AI-agent recon workflows. A built-in MCP server lets Claude, Cursor, and Windsurf initiate scans, triage findings, and build attack narratives programmatically.
When Axonius Wins
- You have a fragmented tool stack and need one asset-of-record. If you run CrowdStrike, Jamf, AWS Config, Qualys, ServiceNow, and Active Directory and want to ask “show me every device and what tools it has coverage from,” Axonius is the right primitive.
- Coverage gap analysis is the real objective. Knowing which assets are missing EDR enrollment or vuln-scanner coverage is Axonius’s core value proposition. HailBytes ASM has no visibility into your internal tooling.
- Large enterprise internal inventory. Axonius handles unmanaged devices, OT assets (via connectors), SaaS account discovery, and cloud workloads sourced from your cloud management plane — all unified. HailBytes ASM doesn’t touch internal networks.
- Natural-language asset queries. Axonius AI lets you ask conversational questions across the whole inventory. Useful when the inventory span is enormous and RBAC-scoped drill-downs matter.
Most mature security programs end up needing both layers: Axonius to know what’s on your internal network and whether it’s covered, HailBytes ASM to know what’s exposed to the internet and whether it’s vulnerable.
Try HailBytes ASM
Deploy from AWS Marketplace or Azure Marketplace for a 30-day trial — includes the underlying VM. Running a live subdomain enumeration and vulnerability scan during the eval is the fastest way to see whether the coverage gap between “what Axonius knows” and “what HailBytes finds” is worth closing.
Related Comparisons
Other asset-visibility and ASM platforms evaluated alongside Axonius:
- vs runZero — agentless internal network discovery, OT/IoT focus.
- vs Wiz — cloud security platform with cloud-API-sourced risk data.
- vs Qualys CSAM — asset inventory within the Qualys Cloud Platform.
- vs Microsoft Defender EASM — Azure-native external ASM (RiskIQ-derived).
- vs Censys — internet-wide certificate and port intelligence dataset.
- Full ASM comparison matrix — every vendor side by side, plus the HailBytes ASM product page.
See HailBytes ASM in Action
Skip the slide deck. Watch the product run end-to-end before you book a call.
Try HailBytes ASM Free
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