flagstack.io - robtex.com
flagstack.io
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3030::6815:49b8πΊπΈ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3030::ac43:a540πΊπΈ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.73.184Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.165.64πΊπΈ Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| NS | bob.ns.cloudflare.com β | ||||||
| A | 2606:4700:58::adf5:3b68πΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | bob.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c168π¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | bob.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2168πΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | bob.ns.cloudflare.com | ||||||
| A | 108.162.193.104πΊπΈ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | bob.ns.cloudflare.com | ||||||
| A | 172.64.33.104πΊπΈ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | bob.ns.cloudflare.com | ||||||
| A | 173.245.59.104πΊπΈ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | bob.ns.cloudflare.com | ||||||
| NS | rita.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3a8cπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rita.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c08cπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | rita.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:208cπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | rita.ns.cloudflare.com | ||||||
| A | 108.162.192.140πΊπΈ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rita.ns.cloudflare.com | ||||||
| A | 172.64.32.140πΊπΈ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rita.ns.cloudflare.com | ||||||
| A | 173.245.58.140πΊπΈ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rita.ns.cloudflare.com | ||||||
| MX | in1-smtp.messagingengine.com β | ||||||
| A | 103.168.172.216πΊπΈ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | phl-mx-01.messagingengine.com | ||||||
| A | 103.168.172.217πΊπΈ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | phl-mx-02.messagingengine.com | ||||||
| A | 103.168.172.218πΊπΈ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | phl-mx-03.messagingengine.com | ||||||
| A | 103.168.172.219πΊπΈ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | phl-mx-04.messagingengine.com | ||||||
| A | 103.168.172.220πΊπΈ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | phl-mx-05.messagingengine.com | ||||||
| A | 103.168.172.221πΊπΈ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | phl-mx-06.messagingengine.com | ||||||
| A | 103.168.172.222πΊπΈ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | phl-mx-07.messagingengine.com | ||||||
| A | 103.168.172.223πΊπΈ TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | phl-mx-08.messagingengine.com | ||||||
| MX | in2-smtp.messagingengine.com(20) | ||||||
| A | 202.12.124.216TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | stl-mx-01.messagingengine.com | ||||||
| A | 202.12.124.217TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | stl-mx-02.messagingengine.com | ||||||
| A | 202.12.124.218TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | stl-mx-03.messagingengine.com | ||||||
| A | 202.12.124.219TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street | ||||||
| PTR | stl-mx-04.messagingengine.com | ||||||
| TXT | v=spf1 include:spf.messagingengine.com ?all | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.73.184, 172.67.165.64 | ||||||
| IPv6 hints | 2606:4700:3030::6815:49b8, 2606:4700:3030::ac43:a540 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=210, name=cloudflare-ech.com | ||||||
| SOA | bob.ns.cloudflare.comdns@cloudflare.com serial=2412085158 | ||||||
io
| DNSSEC | π Signed (DS record present) | ||||||
| NS | a0.nic.io β | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1788629991 | ||||||
Same first word
flagstack.net |
flagstack.io |
flagstack.dev |
Similar names
Previous names
Next names
DNS History
8 records (8 active, 0 former)
βNSbob.ns.cloudflare.com2026-08-31 β 2026-09-05 Β· 2 obs
β 2026-09-05 18:28:10
βNSrita.ns.cloudflare.com2026-08-31 β 2026-09-05 Β· 2 obs
β 2026-09-05 18:28:10
βMXin1-smtp.messagingengine.com2026-08-31 β 2026-09-05 Β· 2 obs
β 2026-09-05 18:28:10
βMXin2-smtp.messagingengine.com2026-08-31 β 2026-09-05 Β· 2 obs
β 2026-09-05 18:28:10
βA104.21.73.1842026-08-31 β 2026-09-05 Β· 2 obs
β 2026-09-05 18:28:10
βA172.67.165.642026-08-31 β 2026-09-05 Β· 2 obs
β 2026-09-05 18:28:10
βA2606:4700:3030::6815:49b82026-08-31 β 2026-09-05 Β· 2 obs
β 2026-09-05 18:28:10
βA2606:4700:3030::ac43:a5402026-08-31 β 2026-09-05 Β· 2 obs
β 2026-09-05 18:28:10
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| flagstack.io | bob.ns.cloudflare.com, rita.ns.cloudflare.com | - |
β Authoritative Response
Server:172.64.33.104
NS records: bob.ns.cloudflare.com, rita.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for flagstack.io (unsigned zone)
β±οΈ Timing
Total: 675ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.165.64, 104.21.73.184 |
| AAAA | 2 | 2606:4700:3030::6815:49b8, 2606:4700:3030::ac43:a540 |
| NS | 2 | bob.ns.cloudflare.com, rita.ns.cloudflare.com |
| MX | 2 | in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20) |
| TXT | 1 | v=spf1 include:spf.messagingengine.com ? |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | bob.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.