Yes — kbcnet.rs has IPv6.

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

This is a saved measurement from 2026-11-15 15:46 UTC. Check kbcnet.rs live now

IPv6 readiness

Works over IPv6, with one gap: its mail servers lack IPv6.

Website over IPv6 kbcnet.rs has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::6815:52d4 answers · 443✓ 2606:4700:3034::ac43:a3fe answers · 443	yes
www over IPv6 www.kbcnet.rs has 2 IPv6 addresses and answers on every one we tested. ✓ 2606:4700:3036::6815:52d4 answers · 443✓ 2606:4700:3034::ac43:a3fe answers · 443	yes
Mail servers (MX) have IPv6 None of the mail servers has an AAAA record. hmail.kbcnet.rs ✗m.kbcnet.rs ✗isp.kbcnet.rs ✗email.kbcnet.rs ✗zimbra.kbcnet.rs ✗	no
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ines.ns.cloudflare.com ✓terry.ns.cloudflare.com ✓	yes

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

https://kbcnet.rs/ via 2606:4700:3036::6815:52d4 → 200

works

What's keeping kbcnet.rs from an A

Mail servers without IPv6
hmail.kbcnet.rs, m.kbcnet.rs, isp.kbcnet.rs, email.kbcnet.rs, zimbra.kbcnet.rs have no AAAA record, so mail from IPv6-only servers can't reach them directly. If a provider runs your mail, that's their setting; if you run it, add AAAA records for these hosts.

Check again

kbcnet.rs Has IPv6

A (IPv4)	172.67.163.254 104.21.82.212
AAAA (IPv6)	2606:4700:3036::6815:52d4 2606:4700:3034::ac43:a3fe

www.kbcnet.rs Has IPv6

A (IPv4)	172.67.163.254 104.21.82.212
AAAA (IPv6)	2606:4700:3036::6815:52d4 2606:4700:3034::ac43:a3fe

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: kbcnet.rs
Measured 2026-11-15 15:46:01 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    172.67.163.254, 104.21.82.212
AAAA (IPv6): 2606:4700:3036::6815:52d4, 2606:4700:3034::ac43:a3fe
www AAAA:    2606:4700:3036::6815:52d4, 2606:4700:3034::ac43:a3fe

Readiness grade B: Works over IPv6, with one gap: its mail servers lack IPv6.
- Website over IPv6: kbcnet.rs has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::6815:52d4: answers (TCP 443)
    2606:4700:3034::ac43:a3fe: answers (TCP 443)
- www over IPv6: www.kbcnet.rs has 2 IPv6 addresses and answers on every one we tested.
    2606:4700:3036::6815:52d4: answers (TCP 443)
    2606:4700:3034::ac43:a3fe: answers (TCP 443)
- Mail servers (MX) have IPv6: None of the mail servers 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: HTTP 200.
    https://kbcnet.rs/ via 2606:4700:3036::6815:52d4 -> HTTP 200, certificate: valid
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/F2TOlclZp0

Permanent link: aaaa.bot/r/F2TOlclZp0 · How we measure

Checked 2026-11-15 15:46:01 UTC. Full DNS report: dns.pizza/domain/kbcnet.rs · Age, certificate and blocklists: how.is/kbcnet.rs · JSON: /api/v1/kbcnet.rs