Vendor security questionnaire guide

Got a security questionnaire
from an enterprise prospect?

Enterprise procurement teams send security questionnaires to every vendor before signing a contract. Most ask about the same technical controls — TLS, email authentication, known vulnerabilities, security headers.

Sycrion scans your domain and generates factual, source-attributed answers to the most common questions. Results in 90 seconds.

How it works

01

Scan your domain free

Enter your domain. Sycrion runs the same passive checks that procurement tools run — TLS, DNS, email auth, headers, CVEs, open ports. Results in 90 seconds.

02

Get your pre-written answers

Each finding maps to common questionnaire questions. You get factual, source-attributed answers you can copy directly into the questionnaire — not generic security text.

03

Send the PDF as supplementary evidence

The full report is formatted for vendor questionnaire submission. Attach it to your response. It shows the procurement team the same data their tools show, properly documented.

Common questions — what they map to

These are the technical questions that appear in 80%+ of vendor security questionnaires. Each one maps directly to a Sycrion scan check.

“Do you enforce HTTPS / TLS across all services?”

TLS/SSL configuration checkvia SSL LabsFactual — yes/no with grade

“Do you have DMARC and SPF records configured for your email domain?”

Email authentication checkvia MXToolboxFactual — yes/no with policy level

“Do you monitor for and remediate publicly known CVEs?”

CVE/NVD scan against detected technologyvia NVD / NISTProcess + evidence

“Are security headers implemented on your web properties?”

HTTP security header scanvia SecurityHeaders.ioFactual with specific headers listed

“Do you restrict unnecessary open network services/ports?”

Open port / exposed service scanvia ShodanFactual — what is / is not exposed

“Do you use DNSSEC or equivalent DNS security controls?”

DNS security checkvia MXToolbox DNSFactual — enabled/disabled

“Can you provide a recent security assessment or audit?”

Full Sycrion report with source citationsvia All sourcesDocument — attach the PDF

“How do you handle certificate management?”

Certificate expiry and grade checkvia SSL Labs / crt.shFactual + certificate transparency record

Which questionnaires does this help with?

✓

SIG (Standardized Information Gathering)

Broad — covers everything from HR to network security

Common
✓

CAIQ (Consensus Assessments Initiative Questionnaire)

Cloud-specific — CSA framework

Common
·

VSAQ (Vendor Security Assessment Questionnaire)

Google's open-source questionnaire template

✓

Custom enterprise questionnaire

Internal procurement team format — usually 20–80 questions

Common
·

HECVAT (Higher Ed Community Vendor Assessment Toolkit)

Education sector

✓ = technical controls section covered by Sycrion. The report handles the external posture questions. Governance, policies, and incident history sections require separate documentation.

Important: what Sycrion won't answer for you

Security questionnaires cover more than external technical hygiene. These sections require your own documentation:

  • →Data retention and deletion policies
  • →Employee security training and awareness programs
  • →Incident response plan and history
  • →Access control and identity management policies
  • →Physical security and data center controls (if applicable)
  • →Business continuity and disaster recovery plans
  • →Third-party vendor risk management process

Sycrion covers the external technical controls sections. Everything else requires your security policies. If you don't have those documents yet, a SOC 2 readiness program (Vanta, Drata) is the right next step.

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Scan your domain and get your answers

Free scan shows severity distribution. Deal Package (€199) gives you the full PDF with pre-written questionnaire answers and source citations.

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No credentials · passive · public sources · EU hosted