substackcdn.com
substackcdn.com is registered with Amazon Registrar, Inc. since April 12, 2022 (4.6 years). The registration expires on April 12, 2027. Its email security grade is F. Its SSL certificate is issued by Amazon and is valid for 63 more days.
- Domain age
- 4.6 yrs
- Technologies
- —
- Email security
- F
- SSL days left
- 63
Registration
| Registrar | Amazon Registrar, Inc. |
|---|---|
| IANA ID | 468 |
| Registered | April 12, 2022 |
| Expires | April 12, 2027 |
| Updated | May 16, 2026 |
| Status | client transfer prohibited |
| Name servers | ns-1445.awsdns-52.org, ns-1936.awsdns-50.co.uk, ns-946.awsdns-54.net, ns-98.awsdns-12.com |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 18.64.211.101 | 26 |
| A | 18.64.211.30 | 26 |
| A | 18.64.211.2 | 26 |
| A | 18.64.211.57 | 26 |
| NS | ns-1445.awsdns-52.org | 172800 |
| NS | ns-1936.awsdns-50.co.uk | 172800 |
| NS | ns-946.awsdns-54.net | 172800 |
| NS | ns-98.awsdns-12.com | 172800 |
| TXT | google-site-verification=tz2v--AUiNuSpVyU440dvghhnTS9kVnvhIWn69muzgs | 172800 |
| AAAA | 2600:9000:20a2:3200:4:b4b9:d3c0:93a1 | 43 |
| AAAA | 2600:9000:20a2:6a00:4:b4b9:d3c0:93a1 | 43 |
| AAAA | 2600:9000:20a2:d400:4:b4b9:d3c0:93a1 | 43 |
| AAAA | 2600:9000:20a2:1a00:4:b4b9:d3c0:93a1 | 43 |
| AAAA | 2600:9000:20a2:1200:4:b4b9:d3c0:93a1 | 43 |
| AAAA | 2600:9000:20a2:f800:4:b4b9:d3c0:93a1 | 43 |
| AAAA | 2600:9000:20a2:ca00:4:b4b9:d3c0:93a1 | 43 |
| AAAA | 2600:9000:20a2:c00:4:b4b9:d3c0:93a1 | 43 |
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, Amazon RSA 2048 M04, Amazon |
| Expires | January 13, 2027 |
| Days remaining | 63 |
| Protocol | TLSv1.3 |
| Names | substackcdn.com |
Email security
- badNo SPF record. Anyone can send email that claims to come from substackcdn.com. Domains that send no email should publish "v=spf1 -all".
- badNo DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- warnNo MX records: this domain cannot receive email.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
About substackcdn.com
Who is the registrar of substackcdn.com?
substackcdn.com is registered with Amazon Registrar, Inc. (IANA ID 468).
When does substackcdn.com expire?
The current registration of substackcdn.com expires on April 12, 2027. It was first registered on April 12, 2022.
Does substackcdn.com protect its email with SPF and DMARC?
substackcdn.com scores 15/100 (grade F) for email security. No SPF record. Anyone can send email that claims to come from substackcdn.com. Domains that send no email should publish "v=spf1 -all". No DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
What are the name servers of substackcdn.com?
substackcdn.com uses ns-1445.awsdns-52.org, ns-1936.awsdns-50.co.uk, ns-946.awsdns-54.net, ns-98.awsdns-12.com.