Rank #71Updated November 10, 2026
support.mozilla.org
Client Challenge
support.mozilla.org is registered with MarkMonitor Inc. since January 24, 1998 (28.8 years). The registration expires on January 23, 2027. Its email security grade is B. Its SSL certificate is issued by Let's Encrypt and is valid for 50 more days.
- Domain age
- 28.8 yrs
- Technologies
- —
- Email security
- B
- SSL days left
- 50
Registration
| Registrar | MarkMonitor Inc. |
|---|---|
| IANA ID | 292 |
| Registered | January 24, 1998 |
| Expires | January 23, 2027 |
| Updated | September 15, 2026 |
| Status | client delete prohibited, server delete prohibited, client transfer prohibited, server transfer prohibited, client update prohibited, server update prohibited |
| Name servers | ns1-240.akam.net, ns4-64.akam.net, ns5-65.akam.net, ns7-66.akam.net |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 151.101.129.91 | 26 |
| A | 151.101.193.91 | 26 |
| A | 151.101.1.91 | 26 |
| A | 151.101.65.91 | 26 |
| AAAA | 2a04:4e42:400::347 | 42 |
| AAAA | 2a04:4e42:600::347 | 42 |
| AAAA | 2a04:4e42::347 | 42 |
| AAAA | 2a04:4e42:200::347 | 42 |
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, YR1, Let's Encrypt |
| Expires | December 30, 2026 |
| Days remaining | 50 |
| Protocol | TLSv1.3 |
| Names | support.mozilla.org |
Email security
BScore 82/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnDKIM key found (selector: google) but it is only 1024 bits; 2048 is recommended.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- goodSPF record found.
- goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
- goodDMARC policy is reject: mail that fails authentication is blocked.
- goodDMARC aggregate reports are sent to mailto:[email protected], mailto:[email protected].
- good4 MX record(s) found. Mail is handled by Google Workspace.
- goodBIMI record found: supporting inboxes can show your brand logo.
Homepage metadata
| Title | Client Challenge |
|---|---|
| Language | en |
| Indexable | Yes |
| Word count | 36 |
About support.mozilla.org
Who is the registrar of support.mozilla.org?
support.mozilla.org is registered with MarkMonitor Inc. (IANA ID 292).
When does support.mozilla.org expire?
The current registration of support.mozilla.org expires on January 23, 2027. It was first registered on January 24, 1998.
Does support.mozilla.org protect its email with SPF and DMARC?
support.mozilla.org scores 82/100 (grade B) for email security. DKIM key found (selector: google) but it is only 1024 bits; 2048 is recommended. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.