Q-Shield · compared
Three kinds of tools answer "are we ready for post-quantum cryptography?" Free checkers test a website. Enterprise platforms inventory cryptography across a whole estate. Q-Shield scans the servers you approve (web, mail, VPN, databases and SSH), judges them against NIST IR 8547 or the NSA's CNSA 2.0, ranks what to fix first, and hands your auditor a report they can verify without us.
Every fact about another product below comes from that vendor's own pages, checked in November 2026; the numbers link to them. IBM is EpochCore's partner (IBM Business Partner), and IBM Quantum Safe is IBM's enterprise offering.
Free checkers
Free checkers test whether a public site negotiates a post-quantum key exchange. None of the three says it tests for ML-KEM-1024, the key exchange CNSA 2.0 requires.
| DigiCert PQC Checker | Wiz PQC Tester | Axiad PQC Readiness Tester | Q-Shield | |
|---|---|---|---|---|
| Cost | Free 1 | Free 5 | Free scan, no signup; the full report needs a work email at the scanned company 8 | Free for the three design partners; then $2,500 for a one-time report of up to 25 hosts |
| Connects to | A website or IP address, over TLS 1 | A domain over HTTPS on port 443 4 | Internet-facing hosts found through passive DNS and certificate transparency; TLS on each host, and mail transport in its sample report 9 | The hosts you approve in writing: TLS on any port, SMTP, IMAP, POP3 and PostgreSQL after STARTTLS, SSH, and the front page's headers on HTTPS |
| Tells you | Pass or fail on TLS 1.3 and post-quantum groups 2 | TLS 1.3 support, and whether post-quantum groups such as X25519MLKEM768 are supported 4 | Compliant or not, TLS version, algorithms, a harvest-now-decrypt-later verdict and a ranked roadmap (behind the email step) 7 9 | A verdict for every check, a plan ranked by how sensitive each host's data is and how long it must stay secret, with dates |
| Evidence | No report; planning is in DigiCert Quantum Central 3 | No report 4 | A report, behind the email step 9 | A PDF, signed JSON and a CBOM, signed with Ed25519 and ML-DSA-87; an auditor checks them offline with OpenSSL |
| CNSA 2.0 | Not mentioned 1 | Not mentioned 4 | CNSA 2.0 rows in its report; its coverage note says it checks for X25519MLKEM768 only 9 | A CNSA-2.0-only hello (ML-KEM-1024 and its P-384 hybrid) to every TLS host, and its own profile |
Wiz also offers its customers a separate product, Wiz for PQC Readiness, which builds a cryptography inventory across cloud and code without agents and helps produce a CBOM 6.
Enterprise platforms
Enterprise platforms find cryptography with sensors, agents, network capture, code scanning and integrations, and manage it from there. None of the four lists a price.
| IBM Quantum Safe | SandboxAQ AQtive Guard | Keyfactor AgileSec | AppViewX AVX | Q-Shield | |
|---|---|---|---|---|---|
| Finds cryptography by | Cryptography Manager covers IT operations and code repositories; built-in discovery uses Nmap and Kubernetes, with imports from Vault PKI, Qualys, Tenable Nessus, CSV and a REST API. Explorer reads source code and configurations 11 13 | Sensors (filesystem and container images, a Java tracer, a network analyzer for TLS handshakes) and feeds from AWS, CrowdStrike, Palo Alto, Qualys, SentinelOne and ServiceNow 15 | Sensors on code, servers, endpoints, cloud workloads and network traffic, or existing EDR and vulnerability tools 17 | Agentless discovery of certificates, TLS settings, cipher suites, protocols and code libraries; reuses Tenable and Qualys scans 19 20 | A scan from EpochCore's server of the hosts you approve, the signed collector inside your network, or the command line; a GitHub app reads lock files |
| You get | Inventory, CBOMs, risk scoring, policy compliance, a roadmap, workflows and Jira or ServiceNow tickets; IBM Quantum Safe Proxy adds hybrid post-quantum cryptography without code changes 11 12 | An exportable inventory, issues ranked by severity with fixes, NIST and post-quantum profiles 15 | Inventory with risk context, prioritization, NIST and PCI DSS checks, rotation and renewal workflows, CBOM export 17 18 | An automatic CBOM, readiness scoring with CMDB context, ServiceNow tickets, post-quantum and hybrid certificates 19 | Verdicts under NIST IR 8547 or CNSA 2.0, a dated plan ranked by your data, a signed report and CBOM, and a weekly re-check that emails when a verdict changes |
| How you buy | 90-day free trial; buy from IBM or AWS Marketplace 11 | Contact sales 16 | Request a demo 17 | Custom quote 19 | Free for the three design partners; then $2,500 per 25-host report and $300 to $500 a month for the weekly re-check |
| Runs | On Kubernetes or OpenShift 14 | SaaS 15 | SaaS hosted by Keyfactor, or self-hosted 17 | SaaS, private cloud, hybrid or on-premises 19 | Hosted by EpochCore, as a signed Docker image in your network, or from the command line |
What Q-Shield doesn't do (yet)
Sources