🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`h1.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=252, 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

h1.cz

h1.co

h1.sk

h1.com.pl

h1.am

h1.com.ua

h1.com.my

h1.is

h1.pro

h1.by

h1.ro

h1.fi

h1.to

h1.fr

h1.no

h1.cc

h1.azureedge.net

h1.su

h1.pw

h1.si

h1.org

h1.md

h1.de

h1.gmbh

h1.company

h1.com.br

h1.be

h1.work

h1.biz

h1.lt

h1.se

h1.hk

h1.community

h1.lv

h1.dk

h1.ru

h1.nl

h1.nu

h1.com

h1.pl

h1.hu

h1.io

h1.net

Similar names

1h.cn

1h.ca

1h.ro

1h.ai

1h.pl

1h.hu

1h.ac.cn

1h.fi

1h.de

1h.be

1h.is

1h.org

1h.com.au

1h.at

1h.cl

1h.biz

1h.no

1h.com

1h.gg

1h.cx

1h.cc

1h.eu

1h.by

1h.fr

1h.net

1h.com.vn

1h.ae

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 19:45:52

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

● 2026-05-07 07:20:10
● 2026-08-15 19:45:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net...	-
optimaserver.com	kara.ns.cloudflare.com, ken.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.127

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: 322ms | 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

h1.optimaserver.com serves as a name server for mainuddinsumon.com.

h1.optimaserver.com is commonly paired with h2.optimaserver.com, h1.dnsserver.name and h2.dnsserver.name to act as name servers.

IP Addresses

h1.optimaserver.com directs to two IP numbers, 45.148.29.8 and 2a06:1301:4050:45:148:29:8:0

h2.optimaserver.com, mainuddinsumon.com, extremebd.net and two other host names share IP numbers with h1.optimaserver.com.

h1.optimaserver.com - robtex.com