gradflow.io - robtex.com

gradflow.io

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:bd05🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:2bef🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.43.239Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.189.5🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmichael.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c0c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmichael.ns.cloudflare.com
A2803:f800:50::6ca2:c30c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmichael.ns.cloudflare.com
A2a06:98c1:50::ac40:230c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmichael.ns.cloudflare.com
A108.162.195.12🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmichael.ns.cloudflare.com
A162.159.44.12Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmichael.ns.cloudflare.com
A172.64.35.12🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmichael.ns.cloudflare.com
NSsummer.ns.cloudflare.com
A2606:4700:50::a29f:2609🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A2803:f800:50::6ca2:c209🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsummer.ns.cloudflare.com
A2a06:98c1:50::ac40:2209🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsummer.ns.cloudflare.com
A108.162.194.9🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A162.159.38.9Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
A172.64.34.9🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsummer.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.43.239, 172.67.189.5
IPv6 hints2606:4700:3031::ac43:bd05, 2606:4700:3037::6815:2bef
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=107, name=cloudflare-ech.com
SOAmichael.ns.cloudflare.comdns@cloudflare.com serial=2407106150

io

DNSSEC🔒 Signed (DS record present)
NSa0.nic.io ⭐
NSa2.nic.io
NSb0.nic.io
NSc0.nic.io
SOAa0.nic.iohostmaster@donuts.email serial=1782338367

Same first word

gradflow.com
gradflow.io

Similar names

wolfgard.com
dragflow.biz
dragflow.it
gfaworld.net
agfworld.com
dragflow.com
fgaworld.com
wolfgrad.com
dragflow.cn
wordflag.com
gfaworld.de
afgworld.com
flowgard.com
flagword.net
wolfgard.de
dragflow.ru
golfward.com
dragflow.net
gfaworld.com
agfworld.ca
dragflow.pl

DNS History

12 records (6 active, 6 former)

NSmichael.ns.cloudflare.comsummer.ns.cloudflare.comA104.21.43.239172.67.189.52606:4700:3031::ac43:bd052606:4700:3037::6815:2bef188.114.96.0188.114.96.4188.114.97.0188.114.97.42a06:98c1:3120::2a06:98c1:3121::
●NSmichael.ns.cloudflare.com2026-06-20 → 2026-06-24 · 2 obs
● 2026-06-20 19:24:46
● 2026-06-24 22:31:18
●NSsummer.ns.cloudflare.com2026-06-20 → 2026-06-24 · 2 obs
● 2026-06-20 19:24:46
● 2026-06-24 22:31:18
●A104.21.43.2392026-06-24 → 2026-06-24 · 3 obs
○ 2026-06-20 20:10:12
● 2026-06-24 22:31:16
● 2026-06-24 22:31:18
●A172.67.189.52026-06-24 → 2026-06-24 · 3 obs
○ 2026-06-20 20:10:12
● 2026-06-24 22:31:16
● 2026-06-24 22:31:18
○A188.114.96.02026-06-20 → 2026-06-20 · 4 obs
○ 2026-06-20 19:24:46
● 2026-06-20 20:10:12
○ 2026-06-24 22:31:16
○ 2026-06-24 22:31:18
○A188.114.96.42026-06-20 → 2026-06-20 · 3 obs
● 2026-06-20 19:24:46
○ 2026-06-20 20:10:12
○ 2026-06-24 22:31:18
○A188.114.97.02026-06-20 → 2026-06-20 · 4 obs
○ 2026-06-20 19:24:46
● 2026-06-20 20:10:12
○ 2026-06-24 22:31:16
○ 2026-06-24 22:31:18
○A188.114.97.42026-06-20 → 2026-06-20 · 3 obs
● 2026-06-20 19:24:46
○ 2026-06-20 20:10:12
○ 2026-06-24 22:31:18
●A2606:4700:3031::ac43:bd052026-06-24 → 2026-06-24 · 3 obs
○ 2026-06-20 20:10:12
● 2026-06-24 22:31:16
● 2026-06-24 22:31:18
●A2606:4700:3037::6815:2bef2026-06-24 → 2026-06-24 · 3 obs
○ 2026-06-20 20:10:12
● 2026-06-24 22:31:16
● 2026-06-24 22:31:18
○A2a06:98c1:3120::2026-06-20 → 2026-06-20 · 3 obs
● 2026-06-20 19:24:46
○ 2026-06-24 22:31:16
○ 2026-06-24 22:31:18
○A2a06:98c1:3121::2026-06-20 → 2026-06-20 · 3 obs
● 2026-06-20 19:24:46
○ 2026-06-24 22:31:16
○ 2026-06-24 22:31:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
iob0.nic.io, a2.nic.io, a0.nic.io, c0.nic.io-
gradflow.iomichael.ns.cloudflare.com, summer.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.34.9

NS records: michael.ns.cloudflare.com, summer.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gradflow.io (unsigned zone)

⏱️ Timing

Total: 238ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.43.239, 172.67.189.5
AAAA22606:4700:3037::6815:2bef, 2606:4700:3031::ac43:bd05
NS2michael.ns.cloudflare.com, summer.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1michael.ns.cloudflare.com dns.cloudflare

Analysis

IP Addresses

gradflow.io resolves to four IP addresses: 104.21.43.239, 172.67.189.5, 2606:4700:3031::ac43:bd05 and 2606:4700:3037::6815:2bef.

Among the host names that share IP numbers with gradflow.io are jb.com.pl, vgelab.org, eq-trm.com and two others.

Name Servers

gradflow.io has two authoritative name servers — michael.ns.cloudflare.com and summer.ns.cloudflare.com.

gradflow.io has the same name server delegation as a number of other domains, such as a5.lv, slidinbook.nl, gingerchai.in and two more.

gradflow.io shares at least some of its name servers with other domains, including gocchungkhoan.com, servitaxe.com, zoosiesta.com and two others.

These name servers are frequently seen alongside the name servers eoin.ns.cloudflare.com, raina.ns.cloudflare.com, suzanne.ns.cloudflare.com and seamus.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

michael.ns.cloudflare.com points to 108.162.195.12, 162.159.44.12, 172.64.35.12 and 3 other IP addresses.

summer.ns.cloudflare.com points to 108.162.194.9, 162.159.38.9, 172.64.34.9 and 3 other IP addresses.