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DNS Tool
Engineer's DNS Intelligence Report
Generated 10 Feb 2026, 18:00 UTC
Duration 7.8s
Integrity 1a1b86e337f40a5a872edf2ea91c7ba7b6b00692c7209b3d32b7a598993bc21ecc11be11af4df00836da51c3aa7963692340b89f461885995b6cbefc77d203c1
Subject Domain
natashabedingfield.co.uk

Engineer's DNS Intelligence Report

natashabedingfield.co.uk
10 Feb 2026, 18:00 UTC · 7.8s · SHA-3-512: 1a1b✱✱✱✱ Verify
Executive Methodology
Recon Mode Snapshot Re-analyze New Domain
Footprint
DNS Security & Trust Posture
Risk Level: Medium Risk Monitoring
1 protocols configured, 4 not configured Why we go beyond letter grades
2 action required 2 recommendations 1 monitoring
Suggested Scanner Configuration High Confidence
Based on 13 historical scans of this domain
Parameter Current Suggested Severity Rationale
timeout_seconds 5s 8s low Average scan duration is 75.8s, suggesting DNS responses are slow for this domain. Increasing timeout from 5s to 8s prevents premature resolution failures.
RFC 8767
Suggestions require explicit approval before applying. No automatic changes will be made.
Email Spoofing
Vulnerable
Brand Impersonation
Not Setup
DNS Tampering
Unsigned
Certificate Control
Open
Action Required
SPF needs attention, DMARC needs strengthening
Recommended
No DMARC aggregate reporting (rua) configured — unable to monitor authentication results, No CAA records
Monitoring
DKIM (partial)
Configured
SPF
Not Configured
MTA-STS, TLS-RPT, CAA, DNSSEC
Priority Actions 5 total Achievable posture: Low Risk
Critical Configure DKIM signing

DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing emails, proving they haven't been tampered with. Enable DKIM in your email provider's settings.

selector1._domainkey.yourdomain.com TXT "v=DKIM1; k=rsa; p=<public_key>"
RFC 6376 §3.6
Medium Add CAA records

Publish CAA DNS records to restrict which Certificate Authorities can issue TLS certificates for your domain. Specify your preferred CA (e.g., letsencrypt.org, digicert.com).

yourdomain.com CAA 0 issue "letsencrypt.org"
RFC 8659 §4
Medium Deploy MTA-STS policy

Publish an MTA-STS DNS record and host a policy file at https://mta-sts.yourdomain.com/.well-known/mta-sts.txt. This tells senders to require TLS when delivering mail to your domain.

_mta-sts.yourdomain.com TXT "v=STSv1; id=20240101"
RFC 8461 §3
Low Configure TLS-RPT reporting

TLS-RPT (TLS Reporting) sends you reports about TLS connection failures when other servers try to deliver mail to your domain. Helps diagnose MTA-STS and STARTTLS issues.

_smtp._tls.yourdomain.com TXT "v=TLSRPTv1; rua=mailto:tls-reports@yourdomain.com"
RFC 8460 §3
Low Enable DNSSEC

DNSSEC (DNS Security Extensions) cryptographically signs DNS responses, preventing attackers from forging DNS answers. Contact your DNS hosting provider to enable DNSSEC signing.

RFC 4033 §2
Registrar (RDAP) LIVE
Unknown
Where domain was purchased
Email Service Provider
Unknown
Email: Enabled
Web Hosting
Unknown
Where website is hosted
DNS Hosting
Unknown
Where DNS records are edited
Email Security Methodology Can this domain be impersonated by email? Partially
Verdict: Partial email authentication configured — some spoofed messages may be delivered.

SPF Record RFC 7208 §4 Verified

Does this domain declare who may send email on its behalf? No
Warning

No SPF record found

RFC 7208 Deviation: This SPF record deviates from RFC 7208 requirements.
RFC Failure Mode: Unlike DMARC (where unknown tags are silently ignored per RFC 7489 §6.3), SPF with unrecognized mechanisms produces a PermError per RFC 7208 §4.6 — the record fails loudly rather than silently.
Related CVEs: CVE-2024-7208 (multi-tenant domain spoofing), CVE-2024-7209 (shared SPF exploitation), CVE-2023-51764 (SMTP smuggling bypasses SPF)

DMARC Policy RFC 7489 §6.3 Verified

Are spoofed emails rejected or quarantined? No policy published
Warning

No DMARC record found

RFC 7489 Present — DMARC record published per RFC 7489 §6.3.
DMARCbis (Pending): draft-ietf-dmarc-dmarcbis will elevate DMARC to Standards Track, obsolete RFC 7489, replace pct= with t= (testing flag), add np= (non-existent subdomain policy), and mandate DNS tree walk for policy discovery instead of the Public Suffix List.
Related CVEs: CVE-2024-49040 (Exchange sender spoofing), CVE-2024-7208 (multi-tenant DMARC bypass)

DKIM Records RFC 6376 §3.6 Verified

Are outbound emails cryptographically signed? Not discoverable
Not Discoverable

DKIM not discoverable via common selectors (large providers use rotating selectors)

RFC 6376 (Provider-Managed) — DKIM signing managed by the detected mail provider per RFC 6376.
Known Vulnerabilities: DKIM l= tag body length vulnerability (attacker appends unsigned content to signed mail), weak key exploitation (keys below 1024-bit are cryptographically breakable per RFC 6376 §3.3.3), DKIM replay attacks (re-sending legitimately signed messages at scale)

MTA-STS RFC 8461 §3 Verified

Can attackers downgrade SMTP to intercept mail? Not prevented
Warning

No MTA-STS record found

MTA-STS policy enforcement is evaluated in Mail Transport Security below.

TLS-RPT RFC 8460 §3 Verified

Will failures in TLS delivery be reported? No reporting
Warning

No TLS-RPT record found

DANE / TLSA Verified Recon Methodology Can mail servers establish identity without a public CA? No
RFC 7672 §3 RFC 6698 §2 Not Configured

No DANE/TLSA records found (checked 1 MX host)

DANE (RFC 7672) binds TLS certificates to DNSSEC-signed DNS records, protecting email transport against man-in-the-middle attacks and rogue CAs. It is the primary transport security standard — MTA-STS (RFC 8461) was created as the alternative for domains that cannot deploy DNSSEC. Over 1 million domains use DANE globally, including Microsoft Exchange Online, Proton Mail, and Fastmail. Best practice: deploy both for defense in depth.
Email Transport Security

Two mechanisms protect email in transit. DANE is the primary standard; MTA-STS is the alternative for domains that cannot deploy DNSSEC:

  • DNSSEC + DANE (RFC 7672) — Cryptographic chain of trust from DNS root to mail server certificate. Eliminates reliance on certificate authorities. No trust-on-first-use weakness. Requires DNSSEC.
  • MTA-STS (RFC 8461) — HTTPS-based policy requiring TLS for mail delivery. Works without DNSSEC but relies on CA trust and is vulnerable on first use (§10). Created for domains where “deploying DNSSEC is undesirable or impractical” (§2).
This domain has neither DANE nor MTA-STS. Mail transport relies on opportunistic TLS without policy enforcement, leaving it vulnerable to downgrade attacks. Deploy DANE (RFC 7672) with DNSSEC for the strongest protection, or MTA-STS (RFC 8461) if DNSSEC is not feasible.

Industry trend: Microsoft Exchange Online enforces inbound DANE with DNSSEC (GA October 2024), and providers like Proton Mail and Fastmail also support DANE. Google Workspace does not support DANE and relies on MTA-STS. Both mechanisms coexist because DANE is backward-compatible — senders skip the check if the domain isn't DNSSEC-signed (RFC 7672 §1.3).

Brand Security Can this brand be convincingly faked?
Verdict: No brand protection configured. Any CA can issue certificates and no brand logo verification in place.

BIMI BIMI Spec Verified Warning

Is the brand identity verified and displayed in inboxes? No

No BIMI record found

CAA RFC 8659 §4 Verified Warning

Does this domain restrict who can issue TLS certificates? No

No CAA records found - any CA can issue certificates

Domain Security Methodology Can DNS responses be tampered with in transit?

DNSSEC RFC 4033 §2 Verified Unsigned

DNSSEC not configured - DNS responses are unsigned

Domain does not use DNSSEC. Enable in your registrar's DNS settings (look for "DNSSEC" or "DS records" section).

NS Delegation Verified

4 nameserver(s) configured

Nameservers: ns1.netnames.net ns2.netnames.net ns5.netnames.net ns6.netnames.net
Multi-Resolver Verification Recon: Consensus reached - 4 resolvers (Cloudflare, Google, Quad9, OpenDNS, DNS4EU) agree on DNS records
Traffic & Routing Where does this domain's traffic actually terminate?

AIPv4 Address

165.160.13.20
165.160.15.20
Where the domain points for web traffic

AAAAIPv6 Address

No AAAA records
IPv6 not configured

MXMail Servers

10 custmx.cscdns.net.
Priority + mail server for email delivery

SRVServices

No SRV records
No service-specific routing configured
Web: Reachable (2 IPv4, 0 IPv6) Mail: 1 server Services: None
Subdomain Discovery RFC 6962 Recon LIVE What subdomains and infrastructure are exposed in certificate logs? None found
How did we find these?

No subdomains found via Certificate Transparency logs, DNS probing, or CNAME chain traversal for this domain. No TLS certificates have been issued and no common service names resolve for subdomains of natashabedingfield.co.uk.

Δ No Propagation Issues: All DNS records are synchronized between resolver and authoritative nameserver.
DNS Intelligence What does DNS look like right now — and what changed over time?
DNS Evidence Diff Side-by-side comparison
Resolver Records (Public DNS cache)
Authoritative Records (Source of truth)
A Synchronized 2 / 2 records
165.160.13.20
165.160.13.20
165.160.15.20
165.160.15.20
AAAA 0 / 0 records
No records
No records
CAA RFC 8659 §4 0 / 0 records
No records
No records
MX RFC 5321 Synchronized 1 / 1 records
10 custmx.cscdns.net.
10 custmx.cscdns.net.
NS RFC 1035 Synchronized 4 / 4 records
ns5.netnames.net.
ns1.netnames.net.
ns6.netnames.net.
ns2.netnames.net.
ns1.netnames.net.
ns5.netnames.net.
ns2.netnames.net.
ns6.netnames.net.
SOA RFC 1035 Synchronized 1 / 1 records
ns1.netnames.net. hostmaster.cscdns.net. 2019060602 28800 7200 604800 14400
ns1.netnames.net. hostmaster.cscdns.net. 2019060602 28800 7200 604800 14400
TXT RFC 7208 §4 0 / 0 records
No records
No records
DNS History Timeline BETA
Your key is sent directly to SecurityTrails and is never stored on our servers. Get an API key
DNS History Timeline BETA

When was a record added, removed, or changed — and could that change be the problem?

Analyze Another Domain

Confirm Your Email Configuration

This tool analyzes DNS records, but to verify actual email delivery, send a test email to Red Sift Investigate. Their tool shows exactly how your emails arrive, including SPF/DKIM/DMARC pass/fail results in the headers.

DATA FRESHNESS & METHODOLOGY

All security-critical records (SPF, DMARC, DKIM, DANE/TLSA, DNSSEC, MTA-STS, TLS-RPT, BIMI, CAA) are queried live from authoritative nameservers and cross-referenced against 5 independent public DNS resolvers (Cloudflare, Google, Quad9, OpenDNS, DNS4EU) at the time of each analysis. No security verdict uses cached data.

Registrar data (RDAP) is cached for up to 24 hours because domain ownership and registration details change infrequently. Certificate Transparency logs (subdomain discovery via RFC 6962) are cached for 1 hour because CT entries are append-only historical records. Sections using cached data are marked with a CACHED badge; live queries show LIVE.

Intelligence Sources

This analysis used 4 DNS resolvers (consensus), reverse DNS (PTR), Team Cymru (ASN attribution), IANA RDAP (registrar), crt.sh (CT logs), and SMTP probing (transport). All using open-standard protocols.

Full List
Verify Report Integrity SHA-3-512 Has this report been altered since generation? Verify below

This cryptographic hash seals the analysis data, domain, timestamp, and tool version into a tamper-evident fingerprint. Any modification to the report data will produce a different hash. This is distinct from the posture hash (used for drift detection) — the integrity hash uniquely identifies this specific report instance.

1a1b86e337f40a5a872edf2ea91c7ba7b6b00692c7209b3d32b7a598993bc21ecc11be11af4df00836da51c3aa7963692340b89f461885995b6cbefc77d203c1
Evaluations reference 12 RFCs. Methods are reproducible using the verification commands provided. Results reflect DNS state at 10 Feb 2026, 18:00 UTC.
Download Raw Intelligence Download Checksum (.sha3)

Download the intelligence dump and verify its integrity, like you would a Kali ISO or any critical artifact. The SHA-3-512 checksum covers every byte of the download — deterministic serialization ensures identical hashes across downloads.

After downloading, verify with any of these commands:

Tip: cd ~/Downloads first (or wherever you saved the files).

OpenSSL + Sidecar (macOS, Linux, WSL) 
cat dns-intelligence-natashabedingfield.co.uk.json.sha3 && echo '---' && openssl dgst -sha3-512 dns-intelligence-natashabedingfield.co.uk.json
Python 3 (cross-platform) 
python3 -c "import hashlib; print(hashlib.sha3_512(open('dns-intelligence-natashabedingfield.co.uk.json','rb').read()).hexdigest())"
sha3sum (coreutils 9+) 
sha3sum -a 512 dns-intelligence-natashabedingfield.co.uk.json
Compare the output against the .sha3 file or the checksum API at /api/analysis/537/checksum. Hash algorithm: SHA-3-512 (Keccak, NIST FIPS 202).

Every finding in this report is backed by DNS queries you can run yourself. These vetted one-liners reproduce the exact checks used to build this report for natashabedingfield.co.uk. Our analysis adds multi-resolver consensus, RFC-based evaluation, and cross-referencing — but the underlying data is always independently verifiable. We are intelligence analysts, not gatekeepers.

DNS Records

Query A records (IPv4) RFC 1035 
dig +noall +answer natashabedingfield.co.uk A
Query AAAA records (IPv6) RFC 1035 
dig +noall +answer natashabedingfield.co.uk AAAA
Query MX records (mail servers) RFC 1035 
dig +noall +answer natashabedingfield.co.uk MX
Query NS records (nameservers) RFC 1035 
dig +noall +answer natashabedingfield.co.uk NS
Query TXT records RFC 1035 
dig +noall +answer natashabedingfield.co.uk TXT

Email Authentication

Check SPF record RFC 7208 
dig +short natashabedingfield.co.uk TXT | grep -i spf
Check DMARC policy RFC 7489 
dig +short _dmarc.natashabedingfield.co.uk TXT
Check DKIM key for selector 'default' RFC 6376 
dig +short default._domainkey.natashabedingfield.co.uk TXT
Check DKIM key for selector 'google' RFC 6376 
dig +short google._domainkey.natashabedingfield.co.uk TXT
Check DKIM key for selector 'selector1' RFC 6376 
dig +short selector1._domainkey.natashabedingfield.co.uk TXT
Check DKIM key for selector 'selector2' RFC 6376 
dig +short selector2._domainkey.natashabedingfield.co.uk TXT

Domain Security

Check DNSSEC DNSKEY records RFC 4035 
dig +dnssec +noall +answer natashabedingfield.co.uk DNSKEY
Check DNSSEC DS records RFC 4035 
dig +noall +answer natashabedingfield.co.uk DS
Validate DNSSEC chain (requires DNSSEC-validating resolver) RFC 4035 
dig +dnssec +cd natashabedingfield.co.uk A @1.1.1.1

Transport Security

Check TLSA record for custmx.cscdns.net RFC 7672 
dig +noall +answer _25._tcp.custmx.cscdns.net TLSA
Verify TLS certificate on primary MX (custmx.cscdns.net) RFC 6698 
openssl s_client -starttls smtp -connect custmx.cscdns.net:25 -servername custmx.cscdns.net 2>/dev/null | openssl x509 -noout -subject -dates
Check MTA-STS DNS record RFC 8461 
dig +short _mta-sts.natashabedingfield.co.uk TXT
Fetch MTA-STS policy file RFC 8461 
curl -sL https://mta-sts.natashabedingfield.co.uk/.well-known/mta-sts.txt
Check TLS-RPT record RFC 8460 
dig +short _smtp._tls.natashabedingfield.co.uk TXT

Brand & Trust

Check BIMI record BIMI Draft 
dig +short default._bimi.natashabedingfield.co.uk TXT
Check CAA records (certificate authority authorization) RFC 8659 
dig +noall +answer natashabedingfield.co.uk CAA

DNS Records

Check HTTPS/SVCB records RFC 9460 
dig +noall +answer natashabedingfield.co.uk HTTPS

Domain Security

Check CDS/CDNSKEY automation records RFC 7344 
dig +noall +answer natashabedingfield.co.uk CDS

Infrastructure Intelligence

RDAP domain registration lookup RFC 9083 
curl -sL 'https://rdap.org/domain/natashabedingfield.co.uk' | python3 -m json.tool | head -50

Transport Security

Test STARTTLS on primary MX (custmx.cscdns.net) RFC 3207 
openssl s_client -starttls smtp -connect custmx.cscdns.net:25 -servername custmx.cscdns.net </dev/null 2>/dev/null | head -5

Infrastructure Intelligence

Search Certificate Transparency logs RFC 6962 
curl -s 'https://crt.sh/?q=%25.natashabedingfield.co.uk&output=json' | python3 -c "import json,sys; [print(e['name_value']) for e in json.load(sys.stdin)]" | sort -u | head -20
Check security.txt RFC 9116 
curl -sL https://natashabedingfield.co.uk/.well-known/security.txt | head -20

AI Surface

Check for llms.txt 
curl -sI https://natashabedingfield.co.uk/llms.txt | head -5
Check robots.txt for AI crawler rules 
curl -s https://natashabedingfield.co.uk/robots.txt | grep -i -E 'GPTBot|ChatGPT|Claude|Anthropic|Google-Extended|CCBot|PerplexityBot'

Infrastructure Intelligence

ASN lookup for 165.160.13.20 (Team Cymru) 
dig +short 20.13.160.165.origin.asn.cymru.com TXT
ASN lookup for 165.160.15.20 (Team Cymru) 
dig +short 20.15.160.165.origin.asn.cymru.com TXT
Commands use dig, openssl, and curl — standard tools available on macOS, Linux, and WSL. Results may vary slightly due to DNS propagation timing and resolver caching.
Intelligence Confidence Audit Engine Verified · 9/9 Evaluated
How confident are these results? Each protocol is independently verified against RFC standards. No self-awarded badges.
SPF
Verified 4858 runs
DKIM
Verified 4677 runs
DMARC
Verified 4842 runs
DANE/TLSA
Verified 4661 runs
DNSSEC
Verified 4839 runs
BIMI
Verified 4676 runs
MTA-STS
Verified 4679 runs
TLS-RPT
Verified 4681 runs
CAA
Verified 4673 runs
Maturity: Development → Verified → Consistent → Gold → Gold Master

Appendix: Verification Commands

The core DNS queries behind this report can be independently verified using these standard terminal commands (dig, openssl, curl). DNS Tool adds multi-resolver consensus, RFC-based evaluation, and cross-referencing on top of the raw data shown here.

DNS Records

Query A records (IPv4) (RFC 1035) 
dig +noall +answer natashabedingfield.co.uk A
Query AAAA records (IPv6) (RFC 1035) 
dig +noall +answer natashabedingfield.co.uk AAAA
Query MX records (mail servers) (RFC 1035) 
dig +noall +answer natashabedingfield.co.uk MX
Query NS records (nameservers) (RFC 1035) 
dig +noall +answer natashabedingfield.co.uk NS
Query TXT records (RFC 1035) 
dig +noall +answer natashabedingfield.co.uk TXT

Email Authentication

Check SPF record (RFC 7208) 
dig +short natashabedingfield.co.uk TXT | grep -i spf
Check DMARC policy (RFC 7489) 
dig +short _dmarc.natashabedingfield.co.uk TXT
Check DKIM key for selector 'default' (RFC 6376) 
dig +short default._domainkey.natashabedingfield.co.uk TXT
Check DKIM key for selector 'google' (RFC 6376) 
dig +short google._domainkey.natashabedingfield.co.uk TXT
Check DKIM key for selector 'selector1' (RFC 6376) 
dig +short selector1._domainkey.natashabedingfield.co.uk TXT
Check DKIM key for selector 'selector2' (RFC 6376) 
dig +short selector2._domainkey.natashabedingfield.co.uk TXT

Domain Security

Check DNSSEC DNSKEY records (RFC 4035) 
dig +dnssec +noall +answer natashabedingfield.co.uk DNSKEY
Check DNSSEC DS records (RFC 4035) 
dig +noall +answer natashabedingfield.co.uk DS
Validate DNSSEC chain (requires DNSSEC-validating resolver) (RFC 4035) 
dig +dnssec +cd natashabedingfield.co.uk A @1.1.1.1

Transport Security

Check TLSA record for custmx.cscdns.net (RFC 7672) 
dig +noall +answer _25._tcp.custmx.cscdns.net TLSA
Verify TLS certificate on primary MX (custmx.cscdns.net) (RFC 6698) 
openssl s_client -starttls smtp -connect custmx.cscdns.net:25 -servername custmx.cscdns.net 2>/dev/null | openssl x509 -noout -subject -dates
Check MTA-STS DNS record (RFC 8461) 
dig +short _mta-sts.natashabedingfield.co.uk TXT
Fetch MTA-STS policy file (RFC 8461) 
curl -sL https://mta-sts.natashabedingfield.co.uk/.well-known/mta-sts.txt
Check TLS-RPT record (RFC 8460) 
dig +short _smtp._tls.natashabedingfield.co.uk TXT

Brand & Trust

Check BIMI record (BIMI Draft) 
dig +short default._bimi.natashabedingfield.co.uk TXT
Check CAA records (certificate authority authorization) (RFC 8659) 
dig +noall +answer natashabedingfield.co.uk CAA

DNS Records

Check HTTPS/SVCB records (RFC 9460) 
dig +noall +answer natashabedingfield.co.uk HTTPS

Domain Security

Check CDS/CDNSKEY automation records (RFC 7344) 
dig +noall +answer natashabedingfield.co.uk CDS

Infrastructure Intelligence

RDAP domain registration lookup (RFC 9083) 
curl -sL 'https://rdap.org/domain/natashabedingfield.co.uk' | python3 -m json.tool | head -50

Transport Security

Test STARTTLS on primary MX (custmx.cscdns.net) (RFC 3207) 
openssl s_client -starttls smtp -connect custmx.cscdns.net:25 -servername custmx.cscdns.net </dev/null 2>/dev/null | head -5

Infrastructure Intelligence

Search Certificate Transparency logs (RFC 6962) 
curl -s 'https://crt.sh/?q=%25.natashabedingfield.co.uk&output=json' | python3 -c "import json,sys; [print(e['name_value']) for e in json.load(sys.stdin)]" | sort -u | head -20
Check security.txt (RFC 9116) 
curl -sL https://natashabedingfield.co.uk/.well-known/security.txt | head -20

AI Surface

Check for llms.txt 
curl -sI https://natashabedingfield.co.uk/llms.txt | head -5
Check robots.txt for AI crawler rules 
curl -s https://natashabedingfield.co.uk/robots.txt | grep -i -E 'GPTBot|ChatGPT|Claude|Anthropic|Google-Extended|CCBot|PerplexityBot'

Infrastructure Intelligence

ASN lookup for 165.160.13.20 (Team Cymru) 
dig +short 20.13.160.165.origin.asn.cymru.com TXT
ASN lookup for 165.160.15.20 (Team Cymru) 
dig +short 20.15.160.165.origin.asn.cymru.com TXT
Running Multi-Source Intelligence Audit

natashabedingfield.co.uk

0s
DNS records — Cloudflare, Google, Quad9, OpenDNS, DNS4EU
Email auth — SPF, DMARC, DKIM selectors
DNSSEC chain of trust & DANE/TLSA
Certificate Transparency & subdomain discovery
SMTP transport & STARTTLS verification
MTA-STS, TLS-RPT, BIMI, CAA
Registrar & infrastructure analysis
Intelligence Classification & Interpretation

Every result includes terminal commands you can run to independently verify the underlying data. No proprietary magic.