Has both IPv4 (A) and IPv6 (AAAA) addresses.
| Website over IPv6 smartwear.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:86a answers · 443✓ 2606:4700:3030::ac43:9d4c answers · 443 | yes |
| www over IPv6 www.smartwear.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::6815:86a answers · 443✓ 2606:4700:3030::ac43:9d4c 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. vera.ns.cloudflare.com ✓wilson.ns.cloudflare.com ✓ | yes |
| HTTPS over IPv6 · not part of the grade yet Answered over IPv6 with a server error (HTTP 530) — can't tell whether that's specific to IPv6. https://smartwear.dev/ via 2606:4700:3037::6815:86a → 530 | ? |
smartwear.dev Has IPv6
| A (IPv4) | 172.67.157.76 104.21.8.106 |
|---|---|
| AAAA (IPv6) | 2606:4700:3037::6815:86a 2606:4700:3030::ac43:9d4c |
www.smartwear.dev Has IPv6
| A (IPv4) | 104.21.8.106 172.67.157.76 |
|---|---|
| AAAA (IPv6) | 2606:4700:3037::6815:86a 2606:4700:3030::ac43:9d4c |
Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).
Permanent link: aaaa.bot/r/ZGeDQl7LMe · How we measure
Checked 2026-11-11 08:21:50 UTC. Full DNS report: dns.pizza/domain/smartwear.dev · Age, certificate and blocklists: how.is/smartwear.dev · JSON: /api/v1/smartwear.dev