flagstack.io - robtex.com

πŸ›‘οΈDomain Reputation CheckBlocklist, phishing & malware statusβ†’

flagstack.io

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:49b8πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3030::ac43:a540πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.73.184Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.165.64πŸ‡ΊπŸ‡Έ Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NSbob.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b68πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A2803:f800:50::6ca2:c168πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRbob.ns.cloudflare.com
A2a06:98c1:50::ac40:2168πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRbob.ns.cloudflare.com
A108.162.193.104πŸ‡ΊπŸ‡Έ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A172.64.33.104πŸ‡ΊπŸ‡Έ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
A173.245.59.104πŸ‡ΊπŸ‡Έ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRbob.ns.cloudflare.com
NSrita.ns.cloudflare.com
A2606:4700:50::adf5:3a8cπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A2803:f800:50::6ca2:c08cπŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrita.ns.cloudflare.com
A2a06:98c1:50::ac40:208cπŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRrita.ns.cloudflare.com
A108.162.192.140πŸ‡ΊπŸ‡Έ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A172.64.32.140πŸ‡ΊπŸ‡Έ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A173.245.58.140πŸ‡ΊπŸ‡Έ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
MXin1-smtp.messagingengine.com ⭐
A103.168.172.216πŸ‡ΊπŸ‡Έ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217πŸ‡ΊπŸ‡Έ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218πŸ‡ΊπŸ‡Έ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219πŸ‡ΊπŸ‡Έ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220πŸ‡ΊπŸ‡Έ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221πŸ‡ΊπŸ‡Έ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222πŸ‡ΊπŸ‡Έ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223πŸ‡ΊπŸ‡Έ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com(20)
A202.12.124.216TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-04.messagingengine.com
TXTv=spf1 include:spf.messagingengine.com ?all
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.73.184, 172.67.165.64
IPv6 hints2606:4700:3030::6815:49b8, 2606:4700:3030::ac43:a540
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=210, name=cloudflare-ech.com
SOAbob.ns.cloudflare.comdns@cloudflare.com serial=2412085158

io

DNSSECπŸ”’ Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1788629991

Same first word

Similar names

Previous names

Next names

DNS History

8 records (8 active, 0 former)

NSbob.ns.cloudflare.comrita.ns.cloudflare.comMXin1-smtp.messagingengine.comin2-smtp.messagingengine.comA104.21.73.184172.67.165.642606:4700:3030::6815:49b82606:4700:3030::ac43:a540
●NSbob.ns.cloudflare.com2026-08-31 β†’ 2026-09-05 Β· 2 obs
● 2026-08-31 04:33:34
● 2026-09-05 18:28:10
●NSrita.ns.cloudflare.com2026-08-31 β†’ 2026-09-05 Β· 2 obs
● 2026-08-31 04:33:34
● 2026-09-05 18:28:10
●MXin1-smtp.messagingengine.com2026-08-31 β†’ 2026-09-05 Β· 2 obs
● 2026-08-31 04:33:34
● 2026-09-05 18:28:10
●MXin2-smtp.messagingengine.com2026-08-31 β†’ 2026-09-05 Β· 2 obs
● 2026-08-31 04:33:34
● 2026-09-05 18:28:10
●A104.21.73.1842026-08-31 β†’ 2026-09-05 Β· 2 obs
● 2026-08-31 04:33:34
● 2026-09-05 18:28:10
●A172.67.165.642026-08-31 β†’ 2026-09-05 Β· 2 obs
● 2026-08-31 04:33:34
● 2026-09-05 18:28:10
●A2606:4700:3030::6815:49b82026-08-31 β†’ 2026-09-05 Β· 2 obs
● 2026-08-31 04:33:34
● 2026-09-05 18:28:10
●A2606:4700:3030::ac43:a5402026-08-31 β†’ 2026-09-05 Β· 2 obs
● 2026-08-31 04:33:34
● 2026-09-05 18:28:10

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io-
flagstack.iobob.ns.cloudflare.com, rita.ns.cloudflare.com-

βœ… Authoritative Response

Server:172.64.33.104

NS records: bob.ns.cloudflare.com, rita.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flagstack.io (unsigned zone)

⏱️ Timing

Total: 675ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2172.67.165.64, 104.21.73.184
AAAA22606:4700:3030::6815:49b8, 2606:4700:3030::ac43:a540
NS2bob.ns.cloudflare.com, rita.ns.cloudflare.com
MX2in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)
TXT1v=spf1 include:spf.messagingengine.com ?
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1bob.ns.cloudflare.com dns.cloudflare.com

Analysis

IP Addresses

flagstack.io has four IP addresses: 104.21.73.184, 172.67.165.64, 2606:4700:3030::6815:49b8 and 2606:4700:3030::ac43:a540.

nu999aa.com, loopfietsstore.com, climax.de and two other host names share IP numbers with flagstack.io.

Name Servers

Two name servers handle the delegation for flagstack.io: bob.ns.cloudflare.com and rita.ns.cloudflare.com.

flagstack.io uses the same name servers as several other domains β€” among them zipyapp.com, equalityandsafety-com.pages.dev, trixity.de and two more.

flagstack.io shares at least some of its name servers with other domains, including alexandrosntonas.com, superafroman.com, collegiateclean.com and two others.

These name servers are frequently paired with the name servers brianna.ns.cloudflare.com and cris.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

bob.ns.cloudflare.com resolves to 108.162.193.104, 172.64.33.104 and 173.245.59.104 among others, with 3 other IP addresses in total.

rita.ns.cloudflare.com resolves to 108.162.192.140, 172.64.32.140 and 173.245.58.140 among others, with 3 other IP addresses in total.

Mail Servers

Mail for flagstack.io is handled by two mail servers β€” in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

flagstack.io uses an identical mail server configuration to several other domains β€” among them lcpprivateequity.com, greeklish.net, arane.us and two more.

flagstack.io shares at least some of its mail servers with other domains, such as mail.nrw.tockli.me.

Hostnames that resolve to 8 IP addresses:

in1-smtp.messagingengine.com resolves to 103.168.172.216, 103.168.172.217 and 103.168.172.218 among others, with 5 other IP addresses in total.

Hosts that point to four IP numbers:

in2-smtp.messagingengine.com points to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.