Yes — nslm.dev has IPv6.

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

This is a saved measurement from 2026-11-01 10:31 UTC. Check nslm.dev live now

IPv6 readiness

Website, mail and DNS all work over IPv6.

Website over IPv6 nslm.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::6815:f6e answers · 443✓ 2606:4700:3037::ac43:a258 answers · 443	yes
www over IPv6 www.nslm.dev has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3037::ac43:a258 answers · 443✓ 2606:4700:3036::6815:f6e 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. henry.ns.cloudflare.com ✓rachel.ns.cloudflare.com ✓	yes

HTTPS over IPv6 · not part of the grade yet
Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.

https://nslm.dev/ via 2606:4700:3036::6815:f6e → 302https://cloudaccessconnect.cloudflareaccess.com/cdn-cgi/access/login/nslm.dev?kid=52167b3567856bbf53478fd9e8a96daa4b3b00adbebef920ec7ee9cdbaa7696f&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImJjNmUwZTQyNTViZjE3Y2ViOGJjNDEwZmRkNDcyNzgwN2Q5M2Q3NjJlMTMyMDZlNTBjNmZkYjMyZTYwZGY5ZWMifQ.eyJ0eXBlIjoibWV0YSIsImF1ZCI6IjUyMTY3YjM1Njc4NTZiYmY1MzQ3OGZkOWU4YTk2ZGFhNGIzYjAwYWRiZWJlZjkyMGVjN2VlOWNkYmFhNzY5NmYiLCJob3N0bmFtZSI6Im5zbG0uZGV2IiwicmVkaXJlY3RfdXJsIjoiLyIsInNlcnZpY2VfdG9rZW5fc3RhdHVzIjpmYWxzZSwiaXNfd2FycCI6ZmFsc2UsImlzX2dhdGV3YXkiOmZhbHNlLCJleHAiOjE3OTM1MjkzNzYsIm5iZiI6MTc5MzUyOTA3NiwiaWF0IjoxNzkzNTI5MDc2LCJhdXRoX3N0YXR1cyI6Ik5PTkUiLCJtdGxzX2F1dGgiOnsiY2VydF9pc3N1ZXJfZG4iOiIiLCJjZXJ0X3NlcmlhbCI6IiIsImNlcnRfaXNzdWVyX3NraSI6IiIsImNlcnRfcHJlc2VudGVkIjpmYWxzZSwiY29tbW9uX25hbWUiOiIiLCJhdXRoX3N0YXR1cyI6Ik5PTkUifSwicmVhbF9jb3VudHJ5IjoiVVMiLCJhcHBfc2Vzc2lvbl9oYXNoIjoiZjFlN2Q2YzM4YTExMWZiZTlkMjRhNjNjY2I2OWMwYTVlMWIxZGUxZjU5OWVmYmM5NDA0YmQ3Mzc0OWJiZDJmNiJ9.L0cfHq7UO-MjbOnqZGjmHA8TuvM3Y__cq-pxK-dfGs6Y9O9SEW5vekZtkWRjl14VV9d2f-WV7dx6Ax87pbAVfec2fC8Klv810UcxToBaEDnCmHIquGcqSP6LYrMUMiP5qy6f2S1PGlgmMQMf56DUJOZyQxCXvpcGRs2aIczM8S3JEVlhtlvrsDuTHQTJiKOR_xLq-dbws77YKl4qhSvd4Y5j8EPhTqltJBNgTe2YaDSwlI5zkFVESeq_UhpnLR28fiMjFAB7MJ1XO7WgFYl_8eamoyhBFB2cHZ6KH-ERmtRXqvQ2fHDqU-HJ204aFwv8conzhHd0VojiLuaiuoLM9g&redirect_url=%2F via 2606:4700:300a::6813:c31d → 200

works

Nothing keeping you from an A

Nothing to fix
Show it off: add the badge to your README.
[![IPv6](https://aaaa.bot/badge/nslm.dev.svg)](https://aaaa.bot/nslm.dev)

Check again

nslm.dev Has IPv6

A (IPv4)	104.21.15.110 172.67.162.88
AAAA (IPv6)	2606:4700:3036::6815:f6e 2606:4700:3037::ac43:a258

www.nslm.dev Has IPv6

A (IPv4)	104.21.15.110 172.67.162.88
AAAA (IPv6)	2606:4700:3037::ac43:a258 2606:4700:3036::6815:f6e

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: nslm.dev
Measured 2026-11-01 10:31:16 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    104.21.15.110, 172.67.162.88
AAAA (IPv6): 2606:4700:3036::6815:f6e, 2606:4700:3037::ac43:a258
www AAAA:    2606:4700:3037::ac43:a258, 2606:4700:3036::6815:f6e

Readiness grade A: Website, mail and DNS all work over IPv6.
- Website over IPv6: nslm.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::6815:f6e: answers (TCP 443)
    2606:4700:3037::ac43:a258: answers (TCP 443)
- www over IPv6: www.nslm.dev has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3037::ac43:a258: answers (TCP 443)
    2606:4700:3036::6815:f6e: 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): Loads over IPv6 with a valid certificate after 1 redirect: HTTP 200.
    https://nslm.dev/ via 2606:4700:3036::6815:f6e -> HTTP 302, certificate: valid
    https://cloudaccessconnect.cloudflareaccess.com/cdn-cgi/access/login/nslm.dev?kid=52167b3567856bbf53478fd9e8a96daa4b3b00adbebef920ec7ee9cdbaa7696f&meta=eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsImtpZCI6ImJjNmUwZTQyNTViZjE3Y2ViOGJjNDEwZmRkNDcyNzgwN2Q5M2Q3NjJlMTMyMDZlNTBjNmZkYjMyZTYwZGY5ZWMifQ.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.L0cfHq7UO-MjbOnqZGjmHA8TuvM3Y__cq-pxK-dfGs6Y9O9SEW5vekZtkWRjl14VV9d2f-WV7dx6Ax87pbAVfec2fC8Klv810UcxToBaEDnCmHIquGcqSP6LYrMUMiP5qy6f2S1PGlgmMQMf56DUJOZyQxCXvpcGRs2aIczM8S3JEVlhtlvrsDuTHQTJiKOR_xLq-dbws77YKl4qhSvd4Y5j8EPhTqltJBNgTe2YaDSwlI5zkFVESeq_UhpnLR28fiMjFAB7MJ1XO7WgFYl_8eamoyhBFB2cHZ6KH-ERmtRXqvQ2fHDqU-HJ204aFwv8conzhHd0VojiLuaiuoLM9g&redirect_url=%2F via 2606:4700:300a::6813:c31d -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/Rkv1d1Jymv

Permanent link: aaaa.bot/r/Rkv1d1Jymv · How we measure

Checked 2026-11-01 10:31:16 UTC. Full DNS report: dns.pizza/domain/nslm.dev · JSON: /api/v1/nslm.dev