Rank #8,308Updated November 10, 2026
w3c.org
w3c.org is registered with Gandi SAS since March 7, 1997 (29.7 years). The registration expires on March 8, 2029. The site runs on Cloudflare, Content Security Policy, HSTS. Its email security grade is B.
- Domain age
- 29.7 yrs
- Technologies
- 3
- Email security
- B
- SSL days left
- —
Registration
| Registrar | Gandi SAS |
|---|---|
| IANA ID | 81 |
| Registered | March 7, 1997 |
| Expires | March 8, 2029 |
| Updated | August 12, 2026 |
| Status | client transfer prohibited |
| Name servers | ns-139-c.gandi.net, ns-206-b.gandi.net, ns-225-a.gandi.net |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 217.70.184.38 | 10800 |
| MX | pan.w3.org 10 | 10800 |
| MX | puck.w3.org 10 | 10800 |
| NS | ns-139-c.gandi.net | 10800 |
| NS | ns-206-b.gandi.net | 10800 |
| NS | ns-225-a.gandi.net | 10800 |
| TXT | v=spf1 -all | 10800 |
Technology stack
CDN
Security
Email security
BScore 87/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- 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 rejected (hard fail).
- goodDMARC policy is reject: mail that fails authentication is blocked.
- goodDMARC aggregate reports are sent to mailto:[email protected].
- goodSPF says this domain sends no email, so DKIM signing is not needed.
- good2 MX record(s) found.
About w3c.org
Who is the registrar of w3c.org?
w3c.org is registered with Gandi SAS (IANA ID 81).
When does w3c.org expire?
The current registration of w3c.org expires on March 8, 2029. It was first registered on March 7, 1997.
What technology does w3c.org use?
We detected 3 technologies on w3c.org, including Cloudflare, Content Security Policy, HSTS.
Does w3c.org protect its email with SPF and DMARC?
w3c.org scores 87/100 (grade B) for email security. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection. No TLS-RPT record, so you won't hear about failed encrypted deliveries.
What are the name servers of w3c.org?
w3c.org uses ns-139-c.gandi.net, ns-206-b.gandi.net, ns-225-a.gandi.net.