`mail.tulup.hr`

DNSSEC	⚠️ Not signed
A	51.77.34.96^{🇵🇱 OVH51.77.0.0/16}
		PTR	`mxtu01.defto.com`

`tulup.hr`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:279c^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:928b^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.156^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.139^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`luke.ns.cloudflare.com` ⭐
NS	`macy.ns.cloudflare.com`
MX	`mail.tulup.hr` ⭐
TXT	`1\|www.tulup.hr`
TXT	`google-site-verification=7mIbF7Whs-gm1p58hgR5wdTycJ9GbfQMuEaUL-fasMM`
TXT	`v=spf1 mx:mxtu01.defto.com ip4:51.77.34.96 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.39.156, 172.67.146.139
		IPv6 hints	2606:4700:3033::6815:279c, 2606:4700:3035::ac43:928b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=223, name=cloudflare-ech.com
SOA	`luke.ns.cloudflare.com`dns@cloudflare.com serial=2407954730

MX for

tulup.hr

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DNS History

1 record (1 active, 0 former)

●A51.77.34.962026-07-12 → 2026-07-20 · 2 obs

● 2026-07-12 16:45:48
● 2026-07-20 19:56:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
hr	n.dns.hr, pch.carnet.hr, hr-ns-1.carnet.hr	-
tulup.hr	macy.ns.cloudflare.com, luke.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.200

NS records: macy.ns.cloudflare.com, luke.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tulup.hr (unsigned zone)

⏱️ Timing

Total: 633ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`51.77.34.96`

Analysis

Mail Server Role

The mail server mail.tulup.hr processes email for tulup.hr.

IP Addresses

mail.tulup.hr resolves to just one IP address, 51.77.34.96.

Two other host names, along with mail.tulup.co.uk, mail.tulup.sk and mxtu01.defto.com, also share IP numbers with mail.tulup.hr.

mail.tulup.hr - robtex.com

mail.tulup.hr

tulup.hr