shopify-erp.info publishes IPv6 but doesn't answer on it.

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

IPv6 readiness

Publishes IPv6 but doesn't answer on it — worse than having none.

Website over IPv6 shopify-erp.info has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4. ✗ 2a01:4a0:2002:4:1da9:a99f:5423:3cf1 no answer	broken
www over IPv6 www.shopify-erp.info has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4. ✗ 2a01:4a0:2002:4:1da9:a99f:5423:3cf1 no answer	broken
Mail servers (MX) have IPv6 Every mail server has an AAAA record. shopify-erp.info ✓	yes
Nameservers have IPv6 2 of 2 nameservers checked have an AAAA record, so IPv6-only resolvers can look the domain up. ns.checkdomain.de ✓ns2.checkdomain.de ✓	yes

What's keeping shopify-erp.info from an A

Fix or remove the AAAA record for shopify-erp.info
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.
Fix or remove the AAAA record for www.shopify-erp.info
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.

Check again

shopify-erp.info Has IPv6

A (IPv4)	130.185.109.77
AAAA (IPv6)	2a01:4a0:2002:4:1da9:a99f:5423:3cf1

www.shopify-erp.info Has IPv6

A (IPv4)	130.185.109.77
AAAA (IPv6)	2a01:4a0:2002:4:1da9:a99f:5423:3cf1

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: shopify-erp.info
Measured 2026-10-31 13:38:26 UTC by aaaa.bot (one server on Fly.io, region iad)

A (IPv4):    130.185.109.77
AAAA (IPv6): 2a01:4a0:2002:4:1da9:a99f:5423:3cf1
www AAAA:    2a01:4a0:2002:4:1da9:a99f:5423:3cf1

Readiness grade F: Publishes IPv6 but doesn't answer on it — worse than having none.
- Website over IPv6: shopify-erp.info has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.
    2a01:4a0:2002:4:1da9:a99f:5423:3cf1: no answer
- www over IPv6: www.shopify-erp.info has an AAAA record, but nothing answered on ports 443 or 80. IPv6 visitors wait for a timeout before falling back to IPv4.
    2a01:4a0:2002:4:1da9:a99f:5423:3cf1: no answer
- Mail servers (MX) have IPv6: Every mail server 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).
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/o61cEMdiuF

Permanent link: aaaa.bot/r/o61cEMdiuF · How we measure

Checked 2026-10-31 13:38:26 UTC. Full DNS report: dns.pizza/domain/shopify-erp.info · JSON: /api/v1/shopify-erp.info