Domain

substack.com

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

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

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Hosting IPs

A/AAAA targets

Subdomains

984

CT + scan + body

Record Types

seen in DNS

Observed Certs

in our scans

DNS Records

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AAAA

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TXT

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CNAME

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CAA

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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

Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.

Subdomain	Resolves to	Last seen
cdn.substack.com	52.222.214.57 2600:9000:28dc:7a00:3:e0f8:540:93a1 2600:9000:28dc:c800:3:e0f8:540:93a1 2600:9000:28dc:f400:3:e0f8:540:93a1 +50	2026-07-18 18:02:27.067
account.substack.com	104.18.37.200 172.64.150.56 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-07-18 18:02:27.067
accounts.substack.com	104.18.37.200 172.64.150.56 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
admin.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
administrator.substack.com	104.18.37.200 172.64.150.56 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
aicentral.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-27 15:17:07.527
aidetox.substack.com	172.64.150.56 104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 +2	2026-06-20 21:49:21.644
aimaker.substack.com	104.18.37.200 172.64.150.56 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-26 04:05:32.050
alertmanager.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
alpha.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
api-v1.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
api-v2.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
api.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
api1.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
api2.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
app.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
apps.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
archive.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
argocd.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
arkhaven.substack.com	104.18.37.200 172.64.150.56 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-27 15:17:07.527
artifactory.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
assets.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
astralcodexten.substack.com	104.18.37.200 172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 +2	2026-07-17 08:28:39.270
auth.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
autoconfig.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
autodiscover.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
backup.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
backups.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
balancer.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
bamboo.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
bastion.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
beta.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
billing.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
bitbucket.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
bitsandatoms.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-16 17:42:25.951
bjt2n3904.substack.com	104.18.37.200 172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 +2	2026-07-26 03:31:29.946
blog.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
bounce.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
build.substack.com	104.18.37.200 172.64.150.56 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-07-18 18:02:27.067
buy.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
cache.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
cacti.substack.com	172.64.150.56 104.18.37.200 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-07-18 18:02:27.067
canary.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
cart.substack.com	172.64.150.56 104.18.37.200 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-07-18 18:02:27.067
castalialibrary.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-27 15:17:07.527
cd.substack.com	104.18.37.200 172.64.150.56 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
checkout.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
ci.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
circleci.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
community.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
confluence.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
console.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 172.64.150.56 2606:4700:440b::6812:25c8 +2	2026-07-27 03:05:22.074
control.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
corp.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
cp.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
cpanel.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
dashboard.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
database.substack.com	172.64.150.56 104.18.37.200 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-18 18:02:27.067
datadog.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
davekarpf.substack.com	172.64.150.56 104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 +2	2026-07-23 02:03:34.131
db.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
demo.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
deploy.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
dev.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
develop.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
development.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
directadmin.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
dl.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
dns.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
dns1.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
dns2.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
docker.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
docs.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
documentation.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
downloads.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
edge.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
elastic.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
encrypt.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
es.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
events.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
exchange.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
fandompulse.substack.com	172.64.150.56 104.18.37.200 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-07-27 15:17:07.527
files.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
firewall.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
fleawar.substack.com	104.18.37.200 172.64.150.56 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-06-23 03:58:47.751
forum.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
ftp.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
fw.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
gamithra.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-21 05:35:48.278
gateway.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
gatewaze.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-26 06:49:47.584
git.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
gitea.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
github.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
gitlab.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
givealltheheart.substack.com	172.64.150.56 104.18.37.200 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-06-20 20:35:02.791
grafana.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
graphite.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
graphql.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
grocto.substack.com	104.18.37.200 172.64.150.56 2606:4700:4401::ac40:9638 2606:4700:4404::6812:25c8 +2	2026-07-17 05:00:49.128
grpc.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
gw.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
harbor.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067
heathercoxrichardson.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-17 02:27:17.666
help.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
home.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
hypatiaai.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 104.18.37.200 2606:4700:4400::ac40:9638 +2	2026-07-19 01:17:10.890
icinga.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
id.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
idp.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
images.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
imap.substack.com	172.64.150.56 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 104.18.37.200 +2	2026-07-18 18:02:27.067
imap2.substack.com	104.18.37.200 172.64.150.56 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-07-18 18:02:27.067
img.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
internal.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
intranet.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
invoice.substack.com	104.18.37.200 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 172.64.150.56 +2	2026-07-18 18:02:27.067
janahan.substack.com	172.64.150.56 104.18.37.200 2606:4700:4404::6812:25c8 2606:4700:4401::ac40:9638 +2	2026-07-21 11:11:58.401
jenkins.substack.com	172.64.150.56 2606:4700:4400::ac40:9638 2606:4700:440b::6812:25c8 104.18.37.200 +2	2026-07-18 18:02:27.067
jira.substack.com	104.18.37.200 2606:4700:440b::6812:25c8 2606:4700:4400::ac40:9638 172.64.150.56 +2	2026-07-18 18:02:27.067

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.

173.255.193.129:80 href · ×10

135.125.205.171:443 href · ×6

143.244.181.192:443 href · ×4

165.101.65.40:443 href · ×4

51.75.249.14:80 href · ×3

67.222.8.247:80 href · ×3

67.222.8.247:443 href · ×3

34.54.88.54:443 href · ×3

34.149.27.149:443 href · ×3

173.236.195.43:443 href · ×3

208.113.200.52:443 href · ×3

40.117.81.55:80 href · ×3

46.23.93.173:443 href · ×3

43.130.68.177:443 href · ×3

107.175.91.130:443 href · ×3

80.78.18.198:443 href · ×2

89.238.91.222:443 href · ×2

44.212.192.50:80 href · ×2

98.83.101.99:443 href · ×2

67.205.166.31:8080 href · ×2

3.219.70.244:80 href · ×2

45.145.103.103:443 href · ×2

18.116.122.143:443 href · ×2

204.168.230.5:443 href · ×2

74.207.230.134:443 href · ×2

3.220.161.22:80 href · ×2

3.123.181.92:80 href · ×1

86.248.203.196:443 href · ×1

173.72.53.2:443 href · ×1

13.200.244.108:443 href · ×1

206.189.220.37:80 href · ×1

45.33.55.90:443 href · ×1

64.119.8.21:443 href · ×1

199.180.114.27:443 href · ×1

153.75.246.114:443 href · ×1

45.77.149.30:443 href · ×1

8.219.86.227:443 href · ×1

167.233.57.242:443 href · ×1

74.208.149.211:443 href · ×1

104.193.141.165:80 href · ×1

216.92.199.211:80 href · ×1

160.251.166.255:443 href · ×1

24.199.100.133:443 href · ×1

5.75.145.72:443 href · ×1

3.134.228.55:80 href · ×1

100.48.40.99:443 href · ×1

3.79.2.90:443 href · ×1

83.137.196.49:443 href · ×1

63.141.231.91:8080 href · ×1

79.96.36.154:443 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.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

7182fe6e985841ac… cloudflare · nimbus2026

Subject: substack.com

Issuer: Amazon RSA 2048 M03

SANs: substack.com, *.substack.com

Valid: 2025-08-06 00:00:00 → 2026-09-03 23:59:59

Threat Intelligence

Domain threat-intel pending

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

History

Domain timeline pending

Passive-DNS history accumulates as our forward-DNS crawler observes A/AAAA/MX/NS/TXT records over time.