Yes — langit99-asli-4.online has IPv6.

Has both IPv4 (A) and IPv6 (AAAA) addresses.

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 langit99-asli-4.online has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::ac43:b9d4 answers · 443✓ 2606:4700:3037::6815:3bf3 answers · 443	yes
www over IPv6 www.langit99-asli-4.online has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3032::ac43:b9d4 answers · 443✓ 2606:4700:3037::6815:3bf3 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. jason.ns.cloudflare.com ✓teresa.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Redirects in a loop.

https://langit99-asli-4.online/ via 2606:4700:3032::ac43:b9d4 → 302

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/langit99-asli-4.online.svg)](https://aaaa.bot/langit99-asli-4.online)

Check again

langit99-asli-4.online Has IPv6

A (IPv4)	104.21.59.243 172.67.185.212
AAAA (IPv6)	2606:4700:3032::ac43:b9d4 2606:4700:3037::6815:3bf3

www.langit99-asli-4.online Has IPv6

A (IPv4)	172.67.185.212 104.21.59.243
AAAA (IPv6)	2606:4700:3032::ac43:b9d4 2606:4700:3037::6815:3bf3

Browsers on dual-stack networks will usually pick IPv6 here (the "Happy Eyeballs" algorithm races both and prefers v6).

Copy the evidence — a citation-ready record of this measurement

IPv6 measurement: langit99-asli-4.online
Measured 2026-11-02 07:35:51 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.59.243, 172.67.185.212
AAAA (IPv6): 2606:4700:3032::ac43:b9d4, 2606:4700:3037::6815:3bf3
www AAAA:    2606:4700:3032::ac43:b9d4, 2606:4700:3037::6815:3bf3

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: langit99-asli-4.online has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::ac43:b9d4: answers (TCP 443)
    2606:4700:3037::6815:3bf3: answers (TCP 443)
- www over IPv6: www.langit99-asli-4.online has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3032::ac43:b9d4: answers (TCP 443)
    2606:4700:3037::6815:3bf3: answers (TCP 443)
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It has an AAAA record.
- Nameservers have IPv6: 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up.

Reachability = a TCP connection opened on port 443 (or 80).

HTTPS over IPv6 (not graded): Redirects in a loop.
    https://langit99-asli-4.online/ via 2606:4700:3032::ac43:b9d4 -> HTTP 302, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/jkBaN_b6lW

Permanent link: aaaa.bot/r/jkBaN_b6lW · How we measure

Checked 2026-11-02 07:35:51 UTC. Full DNS report: dns.pizza/domain/langit99-asli-4.online · JSON: /api/v1/langit99-asli-4.online