`mail.bluebookplus.plus`

DNSSEC	⚠️ Not signed
A	209.42.19.52^{🇬🇧 WHG-LON209.42.19.0/24}
		PTR	`d15574.lon1.stableserver.net`

`bluebookplus.plus`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:4e38^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:d934^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.78.56^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.217.52^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elinore.ns.cloudflare.com` ⭐
NS	`sage.ns.cloudflare.com`
MX	`mail.bluebookplus.plus` ⭐
TXT	`google-site-verification=9A4gsng6umi4gfdCZk-pIjwSVE75ja4p9KCnOiA8Dx4`
TXT	`v=spf1 +a +mx +ip4:209.42.19.52 include:spf.mysecurecloudhost.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.78.56, 172.67.217.52
		IPv6 hints	2606:4700:3034::6815:4e38, 2606:4700:3034::ac43:d934
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=231, name=cloudflare-ech.com
SOA	`elinore.ns.cloudflare.com`dns@cloudflare.com serial=2403531123

MX for

bluebookplus.plus

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DNS History

1 record (1 active, 0 former)

●A209.42.19.522026-05-11 → 2026-05-11 · 2 obs

● 2026-05-11 14:43:30
● 2026-05-11 18:20:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
plus	v0n2.nic.plus, v0n1.nic.plus, v2n0.nic.plus, v2n1.nic.plus...	12 records
bluebookplus.plus	sage.ns.cloudflare.com, elinore.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.153

NS records: sage.ns.cloudflare.com, elinore.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bluebookplus.plus (unsigned zone)

⏱️ Timing

Total: 842ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`209.42.19.52`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v2n1.nic.plus, v2n0.nic.plus, v0n3.nic.plus...)

Analysis

Mail Server Role

mail.bluebookplus.plus serves as the mail server for bluebookplus.plus.

IP Addresses

mail.bluebookplus.plus points to a single IP: 209.42.19.52.

mail.bluebookplus.plus - robtex.com