`claude-api.welsmann.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:abd6^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:27eb^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.235^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.171.214^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.39.235, 172.67.171.214
		IPv6 hints	2606:4700:3031::ac43:abd6, 2606:4700:3035::6815:27eb
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=165, name=cloudflare-ech.com

`welsmann.com`

	DNSSEC	⚠️ Not signed
	NS	`anna.ns.cloudflare.com` ⭐
	NS	`jerome.ns.cloudflare.com`
	MX	`route2.mx.cloudflare.net` ⭐
	MX	`route1.mx.cloudflare.net`⁽⁴⁸⁾
	MX	`route3.mx.cloudflare.net`⁽⁷⁴⁾
	TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
	SOA	`anna.ns.cloudflare.com`dns@cloudflare.com serial=2401636178

Same first word

claude-api.cn

claude-api.cloud

DNS History

4 records (4 active, 0 former)

●A104.21.39.2352026-04-11 → 2026-04-14 · 2 obs

● 2026-04-11 08:50:20
● 2026-04-14 23:35:04

●A172.67.171.2142026-04-11 → 2026-04-14 · 2 obs

● 2026-04-11 08:50:20
● 2026-04-14 23:35:04

●A2606:4700:3031::ac43:abd62026-04-11 → 2026-04-14 · 2 obs

● 2026-04-11 08:50:20
● 2026-04-14 23:35:04

●A2606:4700:3035::6815:27eb2026-04-11 → 2026-04-14 · 2 obs

● 2026-04-11 08:50:20
● 2026-04-14 23:35:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
welsmann.com	anna.ns.cloudflare.com, jerome.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:172.64.32.102

NS records: anna.ns.cloudflare.com, jerome.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 140ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.171.214, 104.21.39.235`
AAAA	2	`2606:4700:3031::ac43:abd6, 2606:4700:3035::6815:27eb`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (anna.ns.cloudflare.com, anna.ns.cloudflare.com, anna.ns.cloudflare.com...)

Analysis

IP Addresses

claude-api.welsmann.com resolves to four IPs: 2606:4700:3031::ac43:abd6, 2606:4700:3035::6815:27eb, 104.21.39.235 and 172.67.171.214.

Other host names, for instance brightbettinggroup.com, groundnation.com, cn.studybasic.de, vianpharma.al and pmcps.edu.hk.cdn.cloudflare.net share IP numbers with claude-api.welsmann.com.

claude-api.welsmann.com - robtex.com