URL / Domain Profile

🌐 duo.com

DOMAIN · host duo.com · threat 0.00 (UNTRACKED) · MarkMonitor, Inc.
Not tracked as a local indicator — DNS / WHOIS / subdomains below still resolve from local caches where available.

Threat score

—
untracked

Sightings

—
0 sources

Subdomains (local)

0
from indicators

Related IPs

4
A/AAAA records

DNS records (local)

27
5 types

Reporting sources

0
0 enrichments
PIVOT🌐 Domain Profile🔍 Advanced Search🕵 OSINT Pivot🔗 Link Analysis🕑 Timeline📤 Export STIX/MISP

📡 Reporting-source breakdown

No data.

0 total source links on this indicator.

🏷 Tag breakdown (domain family)

No data.

📈 DNS record-type counts

TXT
15
A
4
NS
4
MX
3
SOA
1

📅 First-seen timeline (family)

No data.

🏷 WHOIS / Registration (local cache)

RegistrarMarkMonitor, Inc.
Registrant OrgCisco Technology Inc.
CountryUS

🏷 Tags

No tags on this indicator.

📡 DNS Records

Stored (local dns_records) — 27

TypeValueTTLChecked
A 18.238.109.36 60 2026-08-08
A 18.238.109.81 60 2026-08-08
A 18.238.109.129 60 2026-08-08
A 18.238.109.2 60 2026-08-08
MX rcdn-mx-01.cisco.com 300 2026-08-08
MX alln-mx-01.cisco.com 300 2026-08-08
MX aer-mx-01.cisco.com 300 2026-08-08
NS ns-1365.awsdns-42.org 21018 2026-08-08
NS ns-932.awsdns-52.net 21018 2026-08-08
NS ns-55.awsdns-06.com 21018 2026-08-08
NS ns-1733.awsdns-24.co.uk 21018 2026-08-08
SOA ns-55.awsdns-06.com 900 2026-08-08
TXT google-site-verification=UxTqzaF64RMmCuE_cfz67aerfbJyPW7jSWJaDRf8U4Q 300 2026-08-08
TXT google-site-verification=gY1gXbTT44Hc2xjnx-TmKdBLXKzpthxWKGhlqJL0EDw 300 2026-08-08
TXT apple-domain-verification=0NFHW4xLPA7qMAUl 300 2026-08-08
TXT google-site-verification=zagew00MIXPj4NT7NSuvolRYA9BWUFvOvUU9On5SkLs 300 2026-08-08
TXT google-site-verification=QSlNcf5REPqDzZZtYQdQ02iTtFdCkF4iGzRgOHWeAfk 300 2026-08-08
TXT identrust_validate=SMpkw2Y899uXgKrzdHnqptIfXiIOyDNlX1foFF1S209M 300 2026-08-08
TXT google-site-verification=_6xJQkVWQvhjZ8WH17r2qEjOu0CYifwUq5DqV-aUPIE 300 2026-08-08
TXT v=spf1 ip4:72.35.40.113/28 ip4:66.51.154.240/29 include:_spf.google.com include:_spf.salesforce.com include:mktomail.com include:stspg-customer.com include:_spf.intacct.com include:servers.mcsv.net ~all 300 2026-08-08
TXT identrust_validate=VOOjXXB2PpF7kC14MiiEHi40phwnkIP1dhJ1AbyZxWKP 300 2026-08-08
TXT google-site-verification=uo-yyMBObeQzZDH55aAFLRLyf0IiN20p0GJ0H6N2jQQ 300 2026-08-08
TXT google-site-verification=F16Zf7RnF8CVcYnsbn6C308KFSeldSRrLiJK1cCgoBQ 300 2026-08-08
TXT google-site-verification=FyHTkA00weOnJqC50U6D_1Etz0FeTAV36UzX-mR0t7Y 300 2026-08-08
TXT google-site-verification=88KLpNEv0nOJ-yRHH3mp3TIvrG4rhNTP3DbODLQeIYg 300 2026-08-08
TXT google-site-verification=WvGzO9Z62GF-06EZawhrguz4lX-3soAJz8l5Zdd0kpc 300 2026-08-08
TXT workplace-domain-verification=M0nohbh4MpXazNtpfeLQrdlEAbaeQ3 300 2026-08-08

Live (DNS-over-HTTPS · optional augmentation)

TypeValueTTL
A 18.238.109.81 60
A 18.238.109.129 60
A 18.238.109.36 60
A 18.238.109.2 60
MX 10 alln-mx-01.cisco.com. 300
MX 30 aer-mx-01.cisco.com. 300
MX 20 rcdn-mx-01.cisco.com. 300
NS ns-1365.awsdns-42.org. 21600
NS ns-1733.awsdns-24.co.uk. 21600
NS ns-55.awsdns-06.com. 21600
NS ns-932.awsdns-52.net. 21600
TXT google-site-verification=88KLpNEv0nOJ-yRHH3mp3TIvrG4rhNTP3DbODLQeIYg 300
TXT google-site-verification=zagew00MIXPj4NT7NSuvolRYA9BWUFvOvUU9On5SkLs 300
TXT google-site-verification=UxTqzaF64RMmCuE_cfz67aerfbJyPW7jSWJaDRf8U4Q 300
TXT google-site-verification=uo-yyMBObeQzZDH55aAFLRLyf0IiN20p0GJ0H6N2jQQ 300
TXT google-site-verification=QSlNcf5REPqDzZZtYQdQ02iTtFdCkF4iGzRgOHWeAfk 300
TXT google-site-verification=_6xJQkVWQvhjZ8WH17r2qEjOu0CYifwUq5DqV-aUPIE 300
TXT workplace-domain-verification=M0nohbh4MpXazNtpfeLQrdlEAbaeQ3 300
TXT google-site-verification=WvGzO9Z62GF-06EZawhrguz4lX-3soAJz8l5Zdd0kpc 300
TXT identrust_validate=VOOjXXB2PpF7kC14MiiEHi40phwnkIP1dhJ1AbyZxWKP 300
TXT apple-domain-verification=0NFHW4xLPA7qMAUl 300
TXT google-site-verification=gY1gXbTT44Hc2xjnx-TmKdBLXKzpthxWKGhlqJL0EDw 300
TXT google-site-verification=F16Zf7RnF8CVcYnsbn6C308KFSeldSRrLiJK1cCgoBQ 300
TXT identrust_validate=SMpkw2Y899uXgKrzdHnqptIfXiIOyDNlX1foFF1S209M 300
TXT v=spf1 ip4:72.35.40.113/28 ip4:66.51.154.240/29 include:_spf.google.com include:_spf.salesforce.com include:mktomail.com include:stspg-customer.com include:_spf.intacct.com include:servers.mcsv.net ~all 300
TXT google-site-verification=FyHTkA00weOnJqC50U6D_1Etz0FeTAV36UzX-mR0t7Y 300

🖥 Related IPs (4)

Resolved from local A/AAAA records (augmented with live DoH when reachable). Each pivots to its IP dossier.

18.238.109.36 → 18.238.109.81 → 18.238.109.129 → 18.238.109.2 →

🌐 Subdomains — local intel (0)

No subdomains of duo.com in local intel. Check crt.sh ↗

📡 Reporting Sources (0)

Not in local DB, or no sources linked.

🌐 Same-ASN domains (0)

No ASN linkage in local intel.

🔍 OSINT pivots — external lookups

urlscan.io →VirusTotal →crt.sh (CT) →SecurityTrails →whois (who.is) →DNSDumpster →Shodan →Censys →GreyNoise →URLhaus →ThreatMiner →Web Archive →

🔗 Internal pivots & actions

Advanced Search →OSINT Pivot (30+) →Correlation graph →Link analysis →Passive DNS →DNS Audit →Timeline →Takedown draft →Export STIX/MISP →Add to case →

📁 Case Management

+ New case from this
Every panel resolves local-first: threat, category, first-seen & sightings from indicators; DNS from dns_records; WHOIS from whois_cache; subdomains via bounded suffix match on indicators; related IPs from A/AAAA records; tags, reporting sources and the link graph from the local relations. Live OTX pulses and DNS-over-HTTPS are optional augmentation and their absence never blanks the dossier.
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DNS audit batch

Cron: 0 * * * * php /home/zaptf0zdggll/public_html/threats/cron.php

📜 Playbook

Open Response Playbook

🔗 Related Tools

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