No — flipkeel.app is IPv4 only.

Has an IPv4 address but no IPv6 (AAAA) record. IPv6-only visitors can't reach it directly.

IPv6 readiness

The www address publishes IPv6 but doesn't answer on it — worse than having none.

Website over IPv6 flipkeel.app has no AAAA record.	no
www over IPv6 www.flipkeel.app has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4. ✗ 2620:4d:4000:6259:7:13:0:1 no answer	broken
Mail servers (MX) have IPv6 No MX records, so mail goes to the domain's own address (implicit MX). It has no AAAA record.	no
Nameservers have IPv6 4 of 4 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns1bqx.name.com ✓ns2dfg.name.com ✓ns3gmv.name.com ✓ns4ksy.name.com ✓	yes

What's keeping flipkeel.app from an A

Give flipkeel.app an IPv6 address
Ask your hosting provider for the site's IPv6 address (or the hostname to point at), then publish it as an AAAA record. If your host doesn't offer IPv6, a proxy that does can sit in front. How to add an AAAA record
Fix or remove the AAAA record for www.flipkeel.app
Something published an IPv6 address but nothing answers on it, so IPv6 visitors wait for a timeout first. Either make the server listen on IPv6 (and allow ports 443/80 through its firewall), or delete the AAAA record until it does.
Mail servers without IPv6
Your domain's mail goes to its own address, which has no AAAA record.

Check again

flipkeel.app IPv4 only

A (IPv4)	76.76.21.21
AAAA (IPv6)	none

www.flipkeel.app Has IPv6

Alias of	ns1.vercel-dns.com
A (IPv4)	198.51.44.13
AAAA (IPv6)	2620:4d:4000:6259:7:13:0:1

What this means

Visitors on IPv6-only networks (many mobile carriers) can still reach it, but only through a translator their carrier runs (NAT64). The site itself has no IPv6 address — and you can't make one up from the IPv4. Why some hosts don't offer it

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

IPv6 measurement: flipkeel.app
Measured 2026-11-03 20:46:36 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    76.76.21.21
AAAA (IPv6): none
www AAAA:    2620:4d:4000:6259:7:13:0:1

Readiness grade F: The www address publishes IPv6 but doesn't answer on it — worse than having none.
- Website over IPv6: flipkeel.app has no AAAA record.
- www over IPv6: www.flipkeel.app has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.
    2620:4d:4000:6259:7:13:0:1: no answer
- Mail servers (MX) have IPv6: No MX records, so mail goes to the domain's own address (implicit MX). It has no AAAA record.
- Nameservers have IPv6: 4 of 4 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).
No TLS or HTTP request was made.
DNS answers via DNS-over-HTTPS (Cloudflare). Method: https://aaaa.bot/method
Permanent link: https://aaaa.bot/r/Y9JM3srmS7

Permanent link: aaaa.bot/r/Y9JM3srmS7 · How we measure

Checked 2026-11-03 20:46:36 UTC. Full DNS report: dns.pizza/domain/flipkeel.app · Age, certificate and blocklists: how.is/flipkeel.app · JSON: /api/v1/flipkeel.app