cppreference.com
cppreference.com is registered with Tucows Domains Inc. since August 9, 2000 (26.3 years). The registration expires on August 9, 2027. Its email security grade is C. Its SSL certificate is issued by Let's Encrypt and is valid for 59 more days.
- Domain age
- 26.3 yrs
- Technologies
- —
- Email security
- C
- SSL days left
- 59
Registration
| Registrar | Tucows Domains Inc. |
|---|---|
| IANA ID | 69 |
| Registered | August 9, 2000 |
| Expires | August 9, 2027 |
| Updated | April 16, 2026 |
| Status | client transfer prohibited, client update prohibited |
| Name servers | isabel.ns.cloudflare.com, jake.ns.cloudflare.com |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 172.67.188.239 | 300 |
| A | 104.21.57.36 | 300 |
| NS | isabel.ns.cloudflare.com | 86400 |
| NS | jake.ns.cloudflare.com | 86400 |
| TXT | v=spf1 ip4:195.201.94.168 ip6:2a01:4f8:1c1a:2e70::1 -all | 300 |
| AAAA | 2606:4700:3030::6815:3924 | 300 |
| AAAA | 2606:4700:3030::ac43:bcef | 300 |
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, YE1, Let's Encrypt |
| Expires | January 8, 2027 |
| Days remaining | 59 |
| Protocol | TLSv1.3 |
| Names | *.cppreference.com, cppreference.com |
Email security
- warnDMARC has no rua= address, so you receive no reports about mail sent 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).
- goodSPF record found.
- goodSPF ends with -all: servers you have not listed are rejected (hard fail).
- goodDMARC policy is reject: mail that fails authentication is blocked.
About cppreference.com
Who is the registrar of cppreference.com?
cppreference.com is registered with Tucows Domains Inc. (IANA ID 69).
When does cppreference.com expire?
The current registration of cppreference.com expires on August 9, 2027. It was first registered on August 9, 2000.
Does cppreference.com protect its email with SPF and DMARC?
cppreference.com scores 74/100 (grade C) for email security. DMARC has no rua= address, so you receive no reports about mail sent as your domain. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
What are the name servers of cppreference.com?
cppreference.com uses isabel.ns.cloudflare.com, jake.ns.cloudflare.com.