dns.pizza
MonitorsPricingLearnResearch
Monitor a siteSign In
Email tools
  • SPF checker
  • DKIM checker
  • DMARC checker
  • MX lookup
  • Email authentication
  • Blacklist check
Domain & DNS tools
  • DNS lookup
  • WHOIS lookup
  • SSL checker
  • Domain age checker
  • DNS speed test
  • DNS propagation
Explore
  • Oldest domains
  • Top-level domains
  • Registrars
  • Nameservers
  • Domain explorer
  • Learn DNS
  • Research
  • Fix guides
Product
  • Monitoring
  • Pricing
  • Free JSON API
  • Status
  • Contact
Part of the constellation: the.com·who.is·par.is·time.io·aboutus.com
© 2026 DNS.pizza. All rights reserved.
TermsPrivacyContact
DNS.pizzaDNS Report

customer.io

36 records across the types we query · 344ms · 2026-07-21 19:33 UTC · dns.pizza/lookup/customer.io
DNS Lookupcustomer.io

customer.io

344ms2026-07-21 19:33 UTC36 records
Registrar:Hosting:
More tools:Domain ReportWHOISPropagationSecurityDNSSECEmail AuthDeliverabilitySpeed TestBlacklistThreats
Visit SiteMonitor

Ask anything about these results — or pick a starter question below.

76.76.21.21
aspmx.l.google.com
Prio 1
alt1.aspmx.l.google.com
Prio 5
alt2.aspmx.l.google.com
Prio 5
aspmx3.googlemail.com
Prio 10
aspmx2.googlemail.com
Prio 10
ns-1181.awsdns-19.orgawsdns-19.org stats
ns-618.awsdns-13.netawsdns-13.net stats
ns-499.awsdns-62.comawsdns-62.com stats
ns-1893.awsdns-44.co.ukawsdns-44.co.uk stats
1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4
anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET
notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK
MS=ms56053829
slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q
ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd
zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b
facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei
mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb
google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k
have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a
docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29
loom-site-verification=4dac5f34468e49a299444383229599d5
hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw
v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.zendesk.com ~all
linear-domain-verification=wetdfvhymmbh
google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo
sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778
airtable-verification=a839ac25097d07e90b6725421494b506
cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP
OSSRH-70026
jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy
openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX
miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414
asv=8738dd37f3c5a1368cba93d24b4a1e17
Primary NS
ns-1181.awsdns-19.org
Hostmaster
awsdns-hostmaster.amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Min TTL
86400s