Check-Host.cc

Domain

www.quantcast.com

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Run a live full scan of www.quantcast.com

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
Hosting IPs
3
A/AAAA targets
Subdomains
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
in our scans

DNS Records

A
34.209.86.229, 35.155.244.125, 44.240.140.166
AAAA
MX
1 aspmx.l.google.com, 10 alt3.aspmx.l.google.com, 10 alt4.aspmx.l.google.com, 5 alt1.aspmx.l.google.com, 5 alt2.aspmx.l.google.com
NS
ns-1410.awsdns-48.org, ns-1936.awsdns-50.co.uk, ns-33.awsdns-04.com, ns-538.awsdns-03.net
TXT
BPL=1841143, MS=ms56396602, adobe-idp-site-verification=d6e7d54447b1d51a3401a373d7ff675ad5c3f0f88085f426edc600cef3c44528, atlassian-domain-verification=TNEt1rCyWHsplrUUz+uiu1yurXFN15SrKggdskmlABeclN4WFLcyNkb4HsZcKDpf, atlassian-domain-verification=XA8f7T4mp7E17TLV8WuYUZx63z0McRcc022Xk2GaYPkKI1eLzmlta35XiQDmxyET, atlassian-sending-domain-verification=18af88e9-b0e4-4f86-a2ff-a69def878282, cursor-domain-verification-mc5sbk=UX5uGQGn95QgC9RPqLDWXEbZW, docusign=9db9d3dd-9ac0-4c84-a1ed-b42001f378c3
CNAME
CAA
0 iodef "mailto:netsec-notifications@quantcast.com", 0 issue "amazon.com", 0 issue "digicert.com", 0 issue "letsencrypt.org"

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

Hosts whose HTML body references this domain. Strong signal for origin/mirror/embed discovery.

217.18.33.45:443 href · ×3
3.217.91.115:443 href · ×3
208.106.207.249:80 href · ×3
138.201.48.166:443 href · ×1
158.85.72.153:80 href · ×1
64.90.38.91:443 href · ×1
37.187.251.48:80 href · ×1
46.62.144.172:8080 href · ×1
64.234.207.88:443 href · ×1
158.85.72.157:80 href · ×1
158.85.79.152:80 href · ×1
172.93.121.53:443 href · ×1
212.8.242.14:80 href · ×1
64.225.63.247:443 href · ×1
216.92.238.82:80 href · ×1
46.101.155.101:443 href · ×1
132.148.238.73:443 href · ×1
212.8.242.16:443 href · ×1

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
A 44.240.140.166 2026-05-26 03:07:47.855 2026-05-27 17:44:16.261
CAA 0 issue "letsencrypt.org" 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT phxkxg37cgv2j677tsxm05g1bbmqfdd9 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT adobe-idp-site-verification=d6e7d54447b1d51a3401a373d7ff675ad5c3f0f88085f426edc600cef3c44528 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT atlassian-sending-domain-verification=18af88e9-b0e4-4f86-a2ff-a69def878282 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT BPL=1841143 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT salesforce-domain-verification=00D700000008lCS=1TBU100000009Xx 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
NS ns-33.awsdns-04.com 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT atlassian-domain-verification=XA8f7T4mp7E17TLV8WuYUZx63z0McRcc022Xk2GaYPkKI1eLzmlta35XiQDmxyET 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
CAA 0 iodef "mailto:netsec-notifications@quantcast.com" 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT jamf-site-verification=LVPRnL7n-KrjXIavvBkWXw 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT MS=ms56396602 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT atlassian-domain-verification=TNEt1rCyWHsplrUUz+uiu1yurXFN15SrKggdskmlABeclN4WFLcyNkb4HsZcKDpf 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
A 34.209.86.229 2026-05-26 03:07:47.855 2026-05-27 17:44:16.261
A 35.155.244.125 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT v=spf1 include:_spf.google.com include:afb5a32b-spf.mta.getcheckrecipient.com include:_netblock1.quantcast.com include:amazonses.com include:mail.zendesk.com include:mktomail.com ip4:52.27.47.172/32 ~all 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
NS ns-1936.awsdns-50.co.uk 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
CAA 0 issue "digicert.com" 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
MX 5 alt2.aspmx.l.google.com 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
NS ns-538.awsdns-03.net 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT docusign=9db9d3dd-9ac0-4c84-a1ed-b42001f378c3 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
MX 10 alt4.aspmx.l.google.com 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
MX 1 aspmx.l.google.com 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT slack-domain-verification=eXlmle0DYCdNPJbgH8jwPBBb7AnZHXOsqQX4dxFY 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
MX 5 alt1.aspmx.l.google.com 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT google-site-verification=kNP-X1aVptScfikrOYRfzIG0dNjwipm2Gzg_pB8GNFE 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT cursor-domain-verification-mc5sbk=UX5uGQGn95QgC9RPqLDWXEbZW 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
MX 10 alt3.aspmx.l.google.com 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT figma-domain-verification=4fc702bb76e41b73822c9341f57c4f590d1a24ef1a1092870436dac7d11bff8d-1745955127 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
NS ns-1410.awsdns-48.org 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
CAA 0 issue "amazon.com" 2026-05-26 03:07:47.855 2026-07-27 20:07:00.564
TXT google-site-verification=Siim9S6UoHtnV9LQ9szLd39d4UhsEjUjPc2DfHMVma0 2026-07-19 18:03:22.363 2026-07-27 20:07:00.564