reddit.com security report

Certificate, security headers, email authentication, DNS, registration, and exposed hosts — from public sources.

9risk

Low

Minor observations only.

0Critical

0High

0Medium

8Low

1Info

Collected 24 hours ago8.2sfrom cache

Headers—

unavailable

Domain—

unavailable

Certificate Transparency37
DNS resolution112
Network ownership0
CDN / WAF detection0
Exposed ports & CVEs6
Registration
DNS posture4
Email authentication2
Certificate
Security headers
Archived URLs
Analysis9

noteCertificate inspection is unavailable in this runtime.
noteNetwork ownership lookup is unavailable in this runtime; ASN and org are omitted.
noteCDN/WAF detection is unavailable in this runtime.
noteSecurity headers did not complete (Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits). Results below are partial.
noteRegistration did not complete (Too many subrequests by single Worker invocation. To configure this limit, refer to https://developers.cloudflare.com/workers/wrangler/configuration/#limits). Results below are partial.

echo-staging.reddit.com appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: echo-staging.reddit.com
old.reddit.com appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: old.reddit.com
staging-business.reddit.com appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: staging-business.reddit.com
tls-test-1.reddit.com appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: tls-test-1.reddit.com
tls-test-2.reddit.com appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: tls-test-2.reddit.com
www.staging-business.reddit.com appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: www.staging-business.reddit.com
www.tls-test-1.reddit.com appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: www.tls-test-1.reddit.com
Answers for this domain are not signed, so a resolver cannot tell a forged response from a real one.
What to do
Enable DNSSEC at your DNS host and publish the DS record at the registrar.
asset: reddit.com
Mail to this domain can be downgraded to plaintext by an on-path attacker, because senders have no way to know TLS is required.
What to do
Publish an MTA-STS policy (a TXT record plus a small HTTPS-hosted file).
asset: reddit.com

✓Receives mail via 5 servers
alt1.aspmx.l.google.com alt2.aspmx.l.google.com aspmx.l.google.com aspmx2.googlemail.com+1
✓SPFends in -all
v=spf1 include:spf0.reddit.com -all
✓DMARCp=reject
v=DMARC1; p=reject; fo=1; ruf=mailto:reddit@us.cp-dmarc.com; rua=mailto:reddit@us.cp-dmarc.com
!MTA-STSinbound mail can be downgraded to plaintext

!DNSSECanswers can be forged
✓CAA
0 issue "digicert.com; cansignhttpexchanges=yes" · 0 issue "pki.goog"
✓IPv6 (AAAA)
✓4 nameservers
ns-1029.awsdns-00.org ns-1887.awsdns-43.co.uk ns-378.awsdns-47.com ns-557.awsdns-05.net

Address	Ports	Edge	Network
151.101.1.140 alb.reddit.com +22	80443	direct	—
151.101.65.140 alb.reddit.com +22	80443	direct	—
151.101.129.140 alb.reddit.com +23	80443	direct	—
151.101.193.140 alb.reddit.com +21	none known	direct	—
162.159.143.109 cf.gql-fed.reddit.com	none known	direct	—
172.66.3.105 cf.gql-fed.reddit.com	none known	direct	—
104.18.19.2 cf.reddit.com	none known	direct	—
104.18.18.2 cf.reddit.com	none known	direct	—
198.202.211.1 business.reddit.com +3	none known	direct	—
104.18.29.232 e.reddit.com	none known	direct	—
104.18.28.232 e.reddit.com	none known	direct	—
104.18.8.234 l.reddit.com	none known	direct	—
104.18.9.234 l.reddit.com	none known	direct	—
104.18.14.83 echo-staging.reddit.com	none known	direct	—
104.18.15.83 echo-staging.reddit.com	none known	direct	—
104.18.12.208 pi.reddit.com	none known	direct	—
104.18.13.208 pi.reddit.com	none known	direct	—
104.18.18.60 space-vector.reddit.com	none known	direct	—
104.18.19.60 space-vector.reddit.com	none known	direct	—
104.18.11.183 w3-reporting.reddit.com	none known	direct	—
104.18.10.183 w3-reporting.reddit.com	none known	direct	—
104.18.4.149 w3-reporting-nel.reddit.com	none known	direct	—
104.18.5.149 w3-reporting-nel.reddit.com	none known	direct	—
104.18.28.198 w3-reporting-csp.reddit.com	none known	direct	—
104.18.29.198 w3-reporting-csp.reddit.com	none known	direct	—

Archived URLs

Endpoints the Wayback Machine has kept — config files, backups, scripts. Slow to fetch, so it is here on request.

reddit.com security report

Low

Findings

Email authentication

DNS

Hosts

Hostnames