CF1763556989976-tsm20251116095642

DNSWHOIS.INFO - 1st-option.com

Search for IP or hostnames:

1st-option.com checked at 2025-11-19T12:56:29.919Z 572ms 113/113/113 100% R:12 allDone:true timedOut:false

1st-option.com

NSns2.dns.as8607.com
A2600:9000:5300:fe00::1 ๐Ÿ‡บ๐Ÿ‡ธ Amazon
PTRns-254.awsdns-31.com
A205.251.192.254๐Ÿ‡บ๐Ÿ‡ธ Amazon
PTRns-254.awsdns-31.com
NSns1.dns.as8607.net
A2600:9000:5303:2400::1 ๐Ÿ‡บ๐Ÿ‡ธ Amazon
PTRns-804.awsdns-36.net
A205.251.195.36๐Ÿ‡บ๐Ÿ‡ธ Amazon
PTRns-804.awsdns-36.net
NSns3.dns.as8607.org
A2600:9000:5304:dc00::1 ๐Ÿ‡บ๐Ÿ‡ธ Amazon
PTRns-1244.awsdns-27.org
A205.251.196.220๐Ÿ‡บ๐Ÿ‡ธ Amazon
PTRns-1244.awsdns-27.org
MX1stoption-com0i.mail.protection.outlook.com
A2a01:111:f403:ca0b:: ๐Ÿ‡ฌ๐Ÿ‡ง Microsoft
PTRmail-lo2p265cu02300.inbound.protection.outlook.com
A2a01:111:f403:ca0b::1 ๐Ÿ‡ฌ๐Ÿ‡ง Microsoft
PTRmail-lo3p265cu00301.inbound.protection.outlook.com
A2a01:111:f403:ca0b::2 ๐Ÿ‡ฌ๐Ÿ‡ง Microsoft
PTRmail-lo0p265cu00202.inbound.protection.outlook.com
A2a01:111:f403:ca1a:: ๐Ÿ‡ฌ๐Ÿ‡ง Microsoft
PTRmail-cwxp265cu00500.inbound.protection.outlook.com
A52.101.89.0๐Ÿ‡ฌ๐Ÿ‡ง Microsoft
PTRmail-lo2p265cu02300.inbound.protection.outlook.com
A52.101.89.2๐Ÿ‡ฌ๐Ÿ‡ง Microsoft
PTRmail-lo3p265cu00302.inbound.protection.outlook.com
A52.101.99.0๐Ÿ‡ฌ๐Ÿ‡ง Microsoft
PTRmail-cwxp265cu00600.inbound.protection.outlook.com
A52.101.99.2๐Ÿ‡ฌ๐Ÿ‡ง Microsoft
PTRmail-cwxp265cu00502.inbound.protection.outlook.com
NSns4.dns.as8607.co.uk
A2600:9000:5306:d300::1 ๐Ÿ‡บ๐Ÿ‡ธ Amazon
PTRns-1747.awsdns-26.co.uk
A205.251.198.211๐Ÿ‡บ๐Ÿ‡ธ Amazon
PTRns-1747.awsdns-26.co.uk
A62.233.99.31๐Ÿ‡ฌ๐Ÿ‡ง IOMART-AS
PTRno-ptr.as20860.net

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NSa.gtld-servers.net
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net

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Starts with same word

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AI analysis

The parent of mail.1st-option.com is 1st-option.com.

1st-option.com points to IP number: 62.233.99.31.

1st-option.com is delegated to four name servers: ns2.dns.as8607.com, ns1.dns.as8607.net, ns3.dns.as8607.org and ns4.dns.as8607.co.uk.

1st-option.com at least partially shares name servers with other domains, for instance skiphiresouthampton.co.uk, 4com-support.co.uk, 3.121.62.in-addr.arpa, 23.60.195.in-addr.arpa and kolorcraft-digital.com.

Host names with two IP numbers: ns2.dns.as8607.com points to 2600:9000:5300:fe00::1 and 205.251.192.254; ns1.dns.as8607.net points to 2600:9000:5303:2400::1 and 205.251.195.36; ns3.dns.as8607.org points to 2600:9000:5304:dc00::1 and 205.251.196.220; ns4.dns.as8607.co.uk points to 2600:9000:5306:d300::1 and 205.251.198.211.

1st-option.com is handled by a single mail server, 1stoption-com0i.mail.protection.outlook.com.

Host name 1stoption-com0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca0b::, 2a01:111:f403:ca0b::1, 2a01:111:f403:ca0b::2, 2a01:111:f403:ca1a::, 52.101.89.0, 52.101.89.2, 52.101.99.0 and 52.101.99.2.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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