`h2.optimaserver.com`

DNSSEC	⚠️ Not signed
A	2a06:1301:4050:45:148:29:8:0^{🇫🇮 WEBDOCK-AS2a06:1301:4050::/48}
		PTR	`hcpone.hubdns.com`
A	45.148.29.8^{🇫🇮 WEBDOCK-AS45.148.28.0/22}

`optimaserver.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:c4b8^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:29eb^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.41.235^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.196.184^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kara.ns.cloudflare.com` ⭐
NS	`ken.ns.cloudflare.com`
TXT	`brevo-code:b749415125b9982f1108e1e35dca1c03`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.41.235, 172.67.196.184
		IPv6 hints	2606:4700:3030::ac43:c4b8, 2606:4700:3037::6815:29eb
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=242, name=cloudflare-ech.com
SOA	`kara.ns.cloudflare.com`dns@cloudflare.com serial=2411274707

NS for

mainuddinsumon.com

Previously NS for

extremebd.net

Same first word

h2.am

h2.org

h2.ro

h2.bet.br

h2.sg

h2.ie

h2.net

h2.de

h2.la

h2.hu

h2.ca

h2.eu

h2.dk

h2.ag

h2.lv

h2.bet

h2.cn

h2.tv

h2.bio

h2.pt

h2.energy

h2.co.at

h2.com.tr

h2.game

h2.cc

h2.com

h2.inf.br

h2.finance

h2.nexus

h2.sk

h2.com.sg

h2.nl

h2.co.il

h2.si

h2.nz

h2.world

h2.fr

h2.co

h2.io

h2.vc

h2.ru

h2.cl

h2.cz

h2.city

h2.pl

h2.net.au

h2.or.kr

h2.business

h2.no

h2.link

h2.kz

h2.fi

h2.ee

h2.network

h2.live

h2.se

Similar names

2h.digital

2h.com.au

2h.is

2h.ro

2h.no

2h.com.hk

2h.dk

2h.cc

2h.org

2h.cz

2h.eu

2h.su

2h.ca

2h.com.tw

2h.hu

2h.media

2h.events

2h.fr

2h.sk

2h.de

2h.pl

2h.ai

2h.ae

2h.co.za

2h.nl

2h.com

2h.net

2h.com.tr

2h.cm

2h.cl

2h.lt

2h.am

2h.ie

2h.fi

DNS History

2 records (2 active, 0 former)

●A2a06:1301:4050:45:148:29:8:02026-05-07 → 2026-08-15 · 2 obs

● 2026-05-07 07:20:10
● 2026-08-15 04:32:42

●A45.148.29.82026-05-07 → 2026-08-15 · 2 obs

● 2026-05-07 07:20:10
● 2026-08-15 04:32:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net, k.gtld-servers.net...	-
optimaserver.com	kara.ns.cloudflare.com, ken.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.123

NS records: kara.ns.cloudflare.com, ken.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optimaserver.com (unsigned zone)

⏱️ Timing

Total: 131ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`45.148.29.8`
AAAA	1	`2a06:1301:4050:45:148:29:8:0`

📌 Glue Records Collected

Total: 12

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

Analysis

Name Server Role

h2.optimaserver.com is a name server for mainuddinsumon.com.

It is common to see h1.optimaserver.com, h1.dnsserver.name and h2.dnsserver.name acting as name servers in combination with h2.optimaserver.com.

IP Addresses

h2.optimaserver.com points to the IP addresses 45.148.29.8 and 2a06:1301:4050:45:148:29:8:0

h1.optimaserver.com, mainuddinsumon.com, extremebd.net plus two other host names have IP numbers in common with h2.optimaserver.com.

h2.optimaserver.com - robtex.com