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DNS Report
substackcdn.com
22 records across the types we query · 326ms · 2026-07-21 20:42 UTC · dns.pizza/lookup/substackcdn.com
DNS Lookup
substackcdn.com
Lookup
substackcdn.com
326ms
2026-07-21 20:42 UTC
22 records
Registrar:
Hosting:
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DNS Records Assistant
· substackcdn.com
Ask anything about these results — or pick a starter question below.
Explain what each record type does
Anything unusual or misconfigured?
How is this domain's email set up?
A
IPv4 Addresses
4 records
Copy
3.167.99.103
3.167.99.30
3.167.99.105
3.167.99.65
AAAA
IPv6 Addresses
8 records
Copy
2600:9000:27ce:4c00:4:b4b9:d3c0:93a1
2600:9000:27ce:600:4:b4b9:d3c0:93a1
2600:9000:27ce:f800:4:b4b9:d3c0:93a1
2600:9000:27ce:8000:4:b4b9:d3c0:93a1
2600:9000:27ce:ba00:4:b4b9:d3c0:93a1
2600:9000:27ce:6a00:4:b4b9:d3c0:93a1
2600:9000:27ce:d000:4:b4b9:d3c0:93a1
2600:9000:27ce:d600:4:b4b9:d3c0:93a1
MX
Mail Servers
(none)
NS
Name Servers
4 records
Copy
ns-946.awsdns-54.net
awsdns-54.net stats
ns-1936.awsdns-50.co.uk
awsdns-50.co.uk stats
ns-98.awsdns-12.com
awsdns-12.com stats
ns-1445.awsdns-52.org
awsdns-52.org stats
TXT
Text Records
1 record
Copy
google-site-verification=tz2v--AUiNuSpVyU440dvghhnTS9kVnvhIWn69muzgs
SOA
Start of Authority
1 record
Copy
Primary NS
ns-98.awsdns-12.com
Hostmaster
awsdns-hostmaster.amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Min TTL
86400s
CAA
Certificate Authority Authorization
(none)
PTR
Reverse DNS
4 records
Copy
3.167.99.103
server-3-167-99-103.iad55.r.cloudfront.net
3.167.99.30
server-3-167-99-30.iad55.r.cloudfront.net
3.167.99.105
server-3-167-99-105.iad55.r.cloudfront.net
3.167.99.65
server-3-167-99-65.iad55.r.cloudfront.net