MCP servercom.blackveilsecurity/dns

Measure whether a domain's DNS security posture improved or regressed by comparing the current state against a prior scan snapshot. Returns a drift classification (improving/stable

Compute a composite email spoofability risk score (0–100, higher = more spoofable) by combining SPF trust surface, DMARC enforcement, and DKIM coverage. Returns a risk level (minim

Bulk-scan up to 10 domains in parallel. Runs a full security audit on each domain in the list and returns score, NIST-aligned letter grade (6-band A+/A/B/C/D/F), and finding counts

Fetch owner-scoped findings for a completed asynchronous batch scan.

Start a durable asynchronous scan of 1–10 domains. Returns a stable job ID; replaying the same idempotency key with the same principal, normalized inputs, and scoring versions retu

Read the owner-scoped status of an asynchronous batch scan.

Enqueue an async brand audit across up to 50 target domains with optional standard/deep discovery depth, brand aliases, and caller-supplied candidate domains. Returns { auditId, qu

Fetch the result JSON for a completed brand audit. With `target` set, returns the per-target CheckResult; without, returns the audit-level aggregate. Returns notReady when polling

Run a full brand audit on a single target with optional standard/deep discovery depth, brand aliases, and caller-supplied candidate domains. Discovers brand-related domains, looks

Poll the status of an enqueued brand audit. Returns audit-level status (queued | running | completed | failed), progress 'N/M', and per-target statuses. Owner-scoped — auditIds own

Assess the security posture of IETF BANDAID agent-discovery records (draft-mozleywilliams-dnsop-dnsaid). Detects SVCB agent records under _agents/_index._{protocol}._agents, report

Measure authoritative DNS infrastructure posture for a hostname over direct DNS-over-TCP/53 from a single vantage: TCP/53 reachability, the authoritative AA flag, recursion exposur

Check the BIMI brand-logo record at default._bimi.<domain>. Validates the logo URL (l=) and the presence of mark-certificate authority evidence (a=) — the a= tag is a bare URL, so

Look up CAA records for a domain. Shows which Certificate Authorities are authorized to issue certificates. Part of the scan_domain audit.

Check DANE/TLSA certificate pinning for SMTP at port 25. Resolves the domain's MX hosts and looks up TLSA records at _25._tcp.<mx-host>, validating their syntax, usage/selector/mat

Verify DANE certificate pinning for HTTPS connections. Looks up TLSA records at _443._tcp.{domain} (port 443) and validates their syntax, usage/selector/matching-type fields and DN

Check domain reputation against DNS-based Domain Block Lists (Spamhaus DBL, URIBL, SURBL). Returns listing status with decoded return codes.

Look up DKIM records for a domain. Probes common selectors, validates the signing algorithm used for outgoing email (RSA-1024/2048, Ed25519), and reports key strength. Use to verif

Look up and validate the DMARC record for a domain. Shows the enforcement level (none/quarantine/reject), alignment mode (strict/relaxed), and aggregate/forensic reporting destinat

Audit the cryptographic strength of DNSKEY signing algorithms used for DNSSEC. Reports which algorithm is used for DNSSEC signing keys (RSA/SHA-1, RSA/SHA-256, ECDSA P-256, Ed25519

Check DNSSEC status for a domain. Verifies whether DNS is tamper-proof and protected against cache poisoning and DNS spoofing attacks by validating DNSKEY and DS records. Reports w

Walk the full DNSSEC chain of trust from the DNS root down to the target domain, tracing DS/DNSKEY records and algorithm usage at each zone level. Use when asked to trace the chain

Detect fast-flux DNS behavior: performs multiple rounds of A/AAAA queries and checks whether IP addresses are rotating rapidly on each DNS query (a sign of botnet or malicious infr

Audit a domain's browser-facing HTTP security headers over HTTPS. Inspects Content-Security-Policy (flagging unsafe-inline/unsafe-eval/wildcards), X-Frame-Options, X-Content-Type-O

Inspect a domain's published /llms.txt and /llms-full.txt for links and install instructions an AI agent could inherit from someone else. Parses and dedupes the links (same-origin

Detect active typosquat and lookalike/homoglyph domains that impersonate your brand and could be used in phishing. Identifies character-substitution and visual-confusion domains re

Check whether a domain enforces SMTP TLS for inbound mail via MTA-STS, protecting against downgrade attacks. Queries _mta-sts.<domain> and fetches the policy file, reports mode (en

Look up MX records for a domain. Identifies which mail servers receive inbound email for the domain and which email hosting provider is used (Google Workspace, Microsoft 365, Proof

Check whether the mail server (MX) IP addresses are listed on spam blocklists (Spamhaus, Barracuda, SORBS, and other RBLs). Also verifies reverse DNS for MX hosts. Use when you wan

Audit a domain’s nameserver delegation and redundancy. Identifies the DNS hosting provider and, when the infrastructure probe is available, directly compares parent and child NS se

Assess zone walkability risk by analyzing NSEC3PARAM configuration. Detects plain NSEC zones, weak NSEC3 parameters, and opt-out flags.

Verify forward-confirmed reverse DNS (PTR/FCrDNS) for mail servers. Part of the scan_domain audit.

Check MX server IP reputation against 6 DNS-based Real-time Blocklists (SpamCop, UCEProtect, Mailspike, Barracuda, PSBL). Resolves MX hosts to IPs first.

Check a domain against BlackVeil real-time threat intelligence (curated intel-gateway feed). Distinct from DNSBL checks. Operator-deploy only; degrades to info when unprovisioned.

Check DNS consistency across 4 public resolvers.

Query a rotating sample of 3 root servers per call and compare the priming NS set, glue, SOA serials, and cross-root consistency against the embedded official root hints. Uses BV_I

Find alternate TLD variants of a domain (e.g. example.net, example.co) that have weak or missing email authentication and could be used to spoof email. Use when asked about TLD var

Look up and validate the SPF record for a domain. Lists all IP addresses and third-party senders authorised to send email on behalf of the domain, flags syntax errors, and shows th

Map a domain's DNS-visible service footprint by probing 19 common SRV record prefixes (email, calendar, messaging, directory, web) in parallel. Returns discovered services and flag

Check the HTTPS/TLS posture of a domain: HTTPS reachability, HSTS policy, and HTTP-to-HTTPS redirect. Also returns certificate metadata (issuer, expiry date, days remaining, SAN co

Detect SubdoMailing risk: analyzes the SPF include chain for dangling or hijackable subdomains that could let an attacker send email as the domain. Use when you want to know if an

Sweep subdomains for dangling CNAMEs pointing to deprovisioned cloud services that could be claimed by an attacker (subdomain takeover vulnerabilities). Detects 16 provider familie

Validate HTTPS/SVCB records (RFC 9460) for modern transport capability advertisement. Part of the scan_domain audit.

Check whether a domain has SMTP TLS Reporting (TLS-RPT) configured. Queries _smtp._tls.<domain> for the v=TLSRPTv1 record and validates its reporting destination (rua= mailto:/http

Audit TXT records for stale entries and SaaS exposure.

Audit DNS zone hygiene: identifies sensitive or forgotten subdomains exposed in DNS, stale SOA records, and zone propagation issues. Use to find any sensitive subdomains that shoul

Compare a domain's current security configuration against a fixed policy baseline to determine compliance. Use to check whether a domain meets a policy requirement — not for tracki

Side-by-side security comparison of 2–5 domains. Shows relative scores, category gaps, and unique weaknesses for each domain. Use when comparing your security posture against a com

Map domain IPs to Autonomous System Numbers via Team Cymru DNS. Returns ASN, prefix, country, registry, and organization for each IP. Flags high-risk hosting ASNs.

Permanently removes a recurring brand-audit watch by watchId. Owner-scoped — a watchId owned by another principal surfaces as notFound. Returns confirmation of deletion.

Discover all domains that belong to a brand's portfolio by aggregating certificate, DNS, redirect, and mail-policy signals. Use when asked what domains are part of a brand portfoli

Fetch the ranked candidate domains (the discovery CheckResult) for an async run started with discover_brand_domains_start. Returns notReady while the discovery is still in-flight;

Start an async brand-domain discovery for the EXACT seed domain provided (the async sibling of discover_brand_domains, which can run ~24s and time out interactive clients). Same ar

Poll the status of an async brand-domain discovery started with discover_brand_domains_start. Returns status (queued | running | completed | failed) and progress. Owner-scoped — op

Find subdomains of a domain using Certificate Transparency logs. Reveals shadow IT, forgotten services, and unauthorized certificate issuance. Returns a CT SAMPLE, not an asset inv

Explain a finding with impact and remediation.

Generate a DNS/email security remediation artifact. Artifact types: spf_record (build a new SPF record), dmarc_record (create a DMARC policy), dkim_config (DKIM key setup), mta_sts

Get industry benchmark data: shows what percentile a domain's security score ranks at within its sector or country cohort, the mean score, and the most common DNS security failures

Rank a domain against its country or global cohort using the GSI benchmark corpus. Accepts a domain score (from scan_domain) and optional country/sector; returns a percentile: "sco

Get security benchmarks and common configuration issues for a specific email or DNS service-provider cohort (e.g. Google Workspace customers, Microsoft 365 customers). Use when ask

Returns the caller's recurring brand-audit watches: watchId, domain, interval, webhook presence, last-run time, and active state. Owner-scoped. Read-only.

Map scan findings to compliance frameworks: NIST 800-177, PCI DSS 4.0, SOC 2, CIS Controls. Shows pass/fail/partial status per control.

Map DNS-visible third-party service dependencies for a domain. Correlates SPF, NS, TXT verifications, SRV services, and CAA records to reveal which third-party vendors can send ema

Start an async OSINT investigation for a domain. Operator-deploy only; targets must be operator-authorized on the recon watchlist; degrades to info when unprovisioned. Returns an i

Start an async OSINT investigation for an email address (breach exposure, account correlation). Owner/enterprise tier only — people-centric OSINT is restricted to prevent misuse. R

Start an async deep-infrastructure OSINT investigation for a query (domain, IP, or org). Operator-deploy only; targets must be operator-authorized on the recon watchlist; degrades

Start an async supply-chain OSINT investigation for a query. Operator-deploy only; targets must be operator-authorized on the recon watchlist; degrades to info when unprovisioned.

Start an async OSINT investigation for a username (cross-platform presence, breach correlation). Owner/enterprise tier only — people-centric OSINT is restricted to prevent misuse.

Retrieve the final report of a completed OSINT investigation by investigationId. Operator-deploy only; targets must be operator-authorized on the recon watchlist; degrades to info

Poll the status of an OSINT investigation by investigationId. Operator-deploy only; targets must be operator-authorized on the recon watchlist; degrades to info when unprovisioned.

Rank a brand’s portfolio (or an explicit domain set) into prioritized registrar-partner sales leads by product-gap value × severity. Multi-domain, paid. Reuses map_registrar_produc

Fetch domain registration data via RDAP (modern WHOIS replacement). Returns the domain registrar (the company the domain was registered with), registrant contact, creation/expirati

Creates a recurring brand-audit watch for a domain on a daily/weekly/monthly cadence. Each run enqueues a fresh brand_audit_batch_start and (when a webhook is configured) POSTs a d

Trace the full SPF include chain for a domain. Recursively resolves all includes, shows lookup count, tree depth, and flags circular includes or exceeding the 10-lookup limit.

Retrieve findings from a completed cloud-bucket discovery scan by scanId. Operator-deploy only; targets must be operator-authorized on the recon watchlist; degrades to info when un

Start an async cloud-bucket discovery scan for a target domain. Operator-deploy only; targets must be operator-authorized on the recon watchlist; degrades to info when unprovisione

Poll the status of a cloud-bucket discovery scan by scanId. Operator-deploy only; targets must be operator-authorized on the recon watchlist; degrades to info when unprovisioned. R

Run a full DNS and email security audit for a single domain. Aggregates every scan-included check in parallel (SPF, DKIM, DMARC, DNSSEC, TLS/SSL, MTA-STS, CAA, BIMI, subdomain take

Answer, for ONE domain, whether it meets the New Zealand Secure Government Email (SGE) requirements agencies must satisfy by October 2026. Reports all seven SGE controls — DMARC p=

Analyze current DNS posture and enumerate specific attack paths an adversary could exploit, with severity, feasibility, steps, and mitigations.

Re-check a specific security control after applying a fix, to confirm the finding is now resolved. Use only when a fix has already been applied and you want to verify or confirm th