Domain Intelligence Report

booking.com

DNS records, WHOIS/RDAP registration, SSL certificate, subdomain enumeration, and email-security posture — aggregated in real time and cached.

5
DNS record types
170d
SSL cert remaining
11
Subdomains found
SPF + DMARC
Email security
DNS

DNS Records

All record types resolved from authoritative DNS for booking.com.

A 4 records
  • 18.161.21.28
  • 18.161.21.33
  • 18.161.21.126
  • 18.161.21.4
MX 2 records
  • 10 mxa-0032a201.gslb.pphosted.com.
  • 10 mxb-0032a201.gslb.pphosted.com.
TXT 51 records
  • "google-site-verification=WMDRc5NQqj7RWff1N8L0_Ikc08kSr-iUa3C0Zczl9QA"
  • "ZOOM_verify_rRPrFA9oTH2bxfFkJeQTzA"
  • "_globalsign-domain-verification=9Xqu2bonefjuoUF-XmyjAptAfuE-yStJz6wy9UnH-C"
  • "logmein-domain-confirmation 90DIFG9EEUT8U8R4895Y87H"
  • "google-site-verification=Yse39yHdmcUPiSTGNVY-eI27sV3TBfQVLBPHGWHiins"
  • "atlassian-domain-verification=F3hugs/a4ZZHwjGTLmlb12IMA3TIRiz3ifqw4TKRz9tWk0LoyBBXfwc775aT/juy"
  • "_ngvwjw7ivb5mv4iz4ynfsao26826rul"
  • "Dynatrace-site-verification=3a88fc1a-195c-455d-ab87-88d09191496b__drhtlct978bncn9utek6qdqapk"
  • "v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all"
  • "globalsign-domain-verification=jpcnVg6kuHYyEz5op6ZzxI2E53gePoVqca7RgL0aNq"
  • "_14w4c7x8j3wh3rcjq506pc8tpni5e0j"
  • "gwt5v1xngwj1f6zq7khv3bp4xnxbgmkg"
  • "f3n3z6cw35fkl9lnb6q72dczy2z7d2gy"
  • "sending_domain1012722=80cff31442c5f4e1b9c51346939d5bf298d9eff5f69d465476631c95f588ac90"
  • "openai-domain-verification=dv-L58PjwMLqJ4qWsOGfKRPglPO"
  • "docusign=1ddc2bf3-a249-4127-a351-f22dc75077d3"
  • "apple-domain-verification=immERz8LzjEgeSoW"
  • "hpe-greenlake-domain-verification=34593547575036384f70456d357572467164437161596e387935596c35665041"
  • "mongodb-site-verification=Edb8EnML5i9pqy6z4N7La044KKs2z3iC"
  • "MS=ms35392088"
  • "paloaltonetworks-site-verification=05d52539c7f02572db198a10ba1b238b6f4c6550c083c4bf41f4eb5e5101e47c"
  • "asv=93db973d8bc6fd37d0c9e0c3feebff95"
  • "google-site-verification=IqETr3m1Iq2apdhg2tJndtOH5xn_C0PrLSBL4UpB9WU"
  • "VkJHqtn1JPDHrgqwzb8C30fmoABFhxVfjIOtLvlUK06CUwKgd2mevDGtnDhWZcNbxEgK39DOezbHay8XSv1zVQ=="
  • "canva-site-verification=KAuoIY0y5F95ChkJB52A2w"
  • "wrike-verification=NDM5MTUzODoyMTFkNjJmZWM5MDk5MTVjOWY2YTQ2MWI4MmVhNjRkZjBmNjg3NzhmZTJhZTQ2NjYxMmVlNjNmMDJkZWRkN2Vi"
  • "atlassian-domain-verification=PEQekniknkTLbMzMw6Ifb9G9YWzhgcGHzIne34xYo7zW9/rzVsM/6qZSUWdIVAmR"
  • "MS=ms94636132"
  • "google-site-verification=z4muhl35r1aT-msc5R269PO3RKaZHc7zzn6omxkiedI"
  • "intersight=f7b95d6ad5339839c1253d5e47c1c32ff8276909334ff7173890c54f4730e68a"
  • "atlassian-sending-domain-verification=e6842471-4159-4738-b15a-cefe813dc42a"
  • "_t33b2jwn9aya9tjjl23glp3pdv3puct"
  • "smartsheet-site-validation=zF2Qh0qhBS3O7AjSZMdaAVW2E7GB1VLL"
  • "google-site-verification=_dm8lZJlohRuCXhYRFe8COWc0JNx7c6AVF1vWpP52nE"
  • "cisco-ci-domain-verification=45d8573a6620606f09d1556681408112c9f9754309b02423c380eee5d287bd8f"
  • "ecostruxure-it-verification=881dfd3b-5776-4fc0-a5f6-190a0ac842f8"
  • "jamf-site-verification=ginKrX1WfPAXLoSWwmiYoA"
  • "google-site-verification=1eOMDGAH7nc_P5U-8MWPqSTU40og02u0CODDvbcmoMw"
  • "mandrill_verify.e-l764xQVEGJ2x07f-WGHg"
  • "x9zcxt1dfyz6jj60w7smwl42tjzfv5yn"
  • "fastly-domain-delegation-0344411-343733-2021_0223"
  • "onetrust-domain-verification=3fce180bf9e54d5b97a7c9e1ce3cb10c"
  • "miro-verification=a08b425a7aa0b2b93256f4b504ee72afe8f9e0b9"
  • "adobe-idp-site-verification=040db58f-cfb9-4203-a555-bfcd15b24b86"
  • "workplace-domain-verification=LsPqX88w148qQltQvOoT4ZTx6EO5Be"
  • "docker-verification=0ebe0b8e-6bd1-4f94-b0b3-344bd07052ed"
  • "google-site-verification=qKQzyXjxHLM4q1X-7PdrurR3p1QjjINz2QD_MBvAmyU"
  • "anthropic-domain-verification-3tn1j6=kp9CbC14s2pKcVhSOOlbHwQHz"
  • "_globalsign-domain-verification=l_BNpBAnk-rKZRyXJ9UkBfv9o6EEuuenkBrGpYNYo0"
  • "cursor-domain-verification-wv67f5=cvoPd4JZECcPi6V9VqDM7DpGz"
  • "_globalsign-domain-verification=FSlSaYMuHsffF-JRsSpJSonQOV0_jwrwl5kQGpFdtb"
NS 4 records
  • ns-508.awsdns-63.com.
  • ns-716.awsdns-25.net.
  • ns-1288.awsdns-33.org.
  • ns-1959.awsdns-52.co.uk.
SOA 1 record
  • ns-1288.awsdns-33.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Registration

WHOIS / RDAP

Registration data for booking.com via the RDAP protocol, with port-43 WHOIS fallback if RDAP is unavailable.

whois via rdap.org
Registrar
MarkMonitor Inc.
Created
1998-04-17T04:00:00Z
Updated
2025-03-15T09:09:11Z
Expires
2027-04-16T04:00:00Z
Handle
4913307_DOMAIN_COM-VRSN
Nameservers
NS-1288.AWSDNS-33.ORGNS-1959.AWSDNS-52.CO.UKNS-508.AWSDNS-63.COMNS-716.AWSDNS-25.NET
Status
client delete prohibitedclient transfer prohibitedclient update prohibitedserver delete prohibitedserver transfer prohibitedserver update prohibited
TLS

SSL Certificate

Live TLS handshake against booking.com. No third-party scanner.

ssl 170 days remaining
Issuer
CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1,O=DigiCert Inc,C=US
Subject
CN=*.booking.com,O=Booking.com BV,L=Amsterdam,C=NL
Valid from
2025-12-18T00:00:00+00:00
Valid to
2026-10-30T23:59:59+00:00
Serial
9651798561677849800902733153896247602
SANs (2)
*.booking.combooking.com
Reconnaissance

Subdomains discovered

Aggregated from Certificate Transparency logs (crt.sh, certspotter, hackertarget) with DNS bruteforce fallback if all CT sources fail.

⚠ Partial results — crt.sh status 429 · certspotter rate-limited · hackertarget limited: API count exceeded - Increase Quota with Membership
subdomains 11 found
crt.sh status 429 certspotter rate-limited hackertarget limited: API count exceeded - Increase Quota with Membership dns-brute ok +11 (wordlist 54)
  • admin.booking.com
  • api.booking.com
  • blog.booking.com
  • email.booking.com
  • m.booking.com
  • mobile.booking.com
  • remote.booking.com
  • secure.booking.com
  • static.booking.com
  • vpn.booking.com
  • www.booking.com
Email

Email Security Posture

SPF and DMARC presence and records for booking.com. DKIM requires a known selector and is not auto-discoverable.

SPF present
  • v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
DMARC present
  • v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:booking@dmarc.postmastery.eu; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
DKIM selector required

DKIM requires selector; not auto-discoverable

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