The Trade Desk · Domain Security

Trade Desk Domain Security

Domain security

Domain security posture for The Trade Desk, probed live across 10 host(s) and 4 registrable domain(s). 10 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=reject).

AdvertisingProgrammatic AdvertisingDemand-Side PlatformDSPAdTechConnected TVCTVIdentityUnified ID 2.0UID2OpenPathKokaiKoa AIGalileoSinceraOpen InternetReal-Time BiddingOpen Measurement

Transport & Host Security

www.thetradedesk.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 23 20:55:21 2026 GMT
partner.thetradedesk.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Apr 2 07:59:59 2027 GMT
api.thetradedesk.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Apr 2 07:59:59 2027 GMT
open.thetradedesk.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Apr 2 07:59:59 2027 GMT
auth.thetradedesk.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Apr 2 07:59:59 2027 GMT
usw-data.adsrvr.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Apr 2 07:59:59 2027 GMT
offlineattrib.adsrvr.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Apr 2 07:59:59 2027 GMT
insight.adsrvr.org
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Apr 2 07:59:59 2027 GMT
open.sincera.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 27 08:23:39 2026 GMT
prod.uidapi.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Jan 23 23:59:59 2027 GMT

Domain (DNS/Email) Security

thetradedesk.com
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
adsrvr.org
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
sincera.io
DNSSEC: no · SPF: yes · DMARC: yes (p=reject) · CAA: none
uidapi.com
DNSSEC: no · SPF: no · DMARC: yes (p=reject) · CAA: none

Source

Domain Security

Raw ↑ 
generated: '2026-08-13'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: www.thetradedesk.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 23 20:55:21 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: partner.thetradedesk.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Apr  2 07:59:59 2027 GMT
  hsts: null
- host: api.thetradedesk.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Apr  2 07:59:59 2027 GMT
  hsts: null
- host: open.thetradedesk.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Apr  2 07:59:59 2027 GMT
  hsts: false
  hsts_max_age: null
- host: auth.thetradedesk.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Apr  2 07:59:59 2027 GMT
  hsts: false
  hsts_max_age: null
- host: usw-data.adsrvr.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Apr  2 07:59:59 2027 GMT
  hsts: false
  hsts_max_age: null
- host: offlineattrib.adsrvr.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Apr  2 07:59:59 2027 GMT
  hsts: false
  hsts_max_age: null
- host: insight.adsrvr.org
  https: true
  tls_version: TLSv1.3
  cert_expires: Apr  2 07:59:59 2027 GMT
  hsts: false
  hsts_max_age: null
- host: open.sincera.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 27 08:23:39 2026 GMT
  hsts: false
  hsts_max_age: null
- host: prod.uidapi.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Jan 23 23:59:59 2027 GMT
  hsts: false
  hsts_max_age: null
domains:
- domain: thetradedesk.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: adsrvr.org
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: sincera.io
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: reject
- domain: uidapi.com
  dnssec: false
  caa: []
  spf: false
  dmarc: true
  dmarc_policy: reject
note: The mechanical probe caps at three hosts and one registrable domain. The additional hosts and domains
  below were probed by hand on 2026-08-13 with the same method, to cover the API, auth, data-ingest, OpenSincera
  and UID2 operator surfaces. No HSTS on any host except www.thetradedesk.com; no CAA and no DNSSEC on
  any Trade Desk domain. DMARC is p=reject across thetradedesk.com, adsrvr.org, sincera.io and uidapi.com,
  with adsrvr.org and uidapi.com aggregate reports routing to secops@thetradedesk.com — which is a useful
  ownership signal for those two non-thetradedesk.com domains.