Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 scstjs.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3034::6815:3314 answers · 443✓ 2606:4700:3036::ac43:da79 answers · 443 | yes |
| www over IPv6 www.scstjs.com has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::ac43:da79 answers · 443✓ 2606:4700:3034::6815:3314 answers · 443 | yes |
| Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record. | yes |
| Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. alexandra.ns.cloudflare.com ✓clint.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Loads over IPv6 with a valid certificate: HTTP 403. https://scstjs.com/ via 2606:4700:3034::6815:3314 → 403 | works |
scstjs.com Has IPv6
| A (IPv4) | 172.67.218.121 104.21.51.20 |
|---|---|
| AAAA (IPv6) | 2606:4700:3034::6815:3314 2606:4700:3036::ac43:da79 |
www.scstjs.com Has IPv6
| A (IPv4) | 172.67.218.121 104.21.51.20 |
|---|---|
| AAAA (IPv6) | 2606:4700:3036::ac43:da79 2606:4700:3034::6815:3314 |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/OP0RlqP7vP · How we measure
Checked 2026-11-06 08:56:01 UTC. Full DNS report: dns.pizza/domain/scstjs.com · Age, certificate and blocklists: how.is/scstjs.com · JSON: /api/v1/scstjs.com