openstring.io - robtex.com
openstring.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:c9c🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:842f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.12.156Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.132.47🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | fatima.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:26bc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fatima.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2bc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | fatima.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22bc🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | fatima.ns.cloudflare.com | ||||||
| A | 108.162.194.188🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fatima.ns.cloudflare.com | ||||||
| A | 162.159.38.188Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fatima.ns.cloudflare.com | ||||||
| A | 172.64.34.188🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fatima.ns.cloudflare.com | ||||||
| NS | fred.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b71🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c171🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2171🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 108.162.193.113🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 172.64.33.113🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| A | 173.245.59.113🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | fred.ns.cloudflare.com | ||||||
| TXT | v=spf1 ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.12.156, 172.67.132.47 | ||||||
| IPv6 hints | 2606:4700:3034::6815:c9c, 2606:4700:3037::ac43:842f | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=66, name=cloudflare-ech.com | ||||||
| SOA | fatima.ns.cloudflare.comdns@cloudflare.com serial=2402158902 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1777181488 | ||||||
Same first word
Similar names
neginsport.com |
springtone.com |
pinestrong.com |
springnote.co.kr |
strongpine.com |
springnote.net |
springnote.com |
sportingen.com |
DNS History
6 records (6 active, 0 former)
●NSfatima.ns.cloudflare.com2026-04-23 → 2026-04-26 · 2 obs
● 2026-04-26 06:01:46
●NSfred.ns.cloudflare.com2026-04-23 → 2026-04-26 · 2 obs
● 2026-04-26 06:01:46
●A104.21.12.1562026-04-23 → 2026-04-26 · 2 obs
● 2026-04-26 06:01:46
●A172.67.132.472026-04-23 → 2026-04-26 · 2 obs
● 2026-04-26 06:01:46
●A2606:4700:3034::6815:c9c2026-04-23 → 2026-04-26 · 2 obs
● 2026-04-26 06:01:46
●A2606:4700:3037::ac43:842f2026-04-23 → 2026-04-26 · 2 obs
● 2026-04-26 06:01:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| openstring.io | fred.ns.cloudflare.com, fatima.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.188
NS records: fred.ns.cloudflare.com, fatima.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openstring.io (unsigned zone)
⏱️ Timing
Total: 340ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.12.156, 172.67.132.47 |
| AAAA | 2 | 2606:4700:3034::6815:c9c, 2606:4700:3037::ac43:842f |
| NS | 2 | fatima.ns.cloudflare.com, fred.ns.cloudflare.com |
| TXT | 1 | v=spf1 ~all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | fatima.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
openstring.io maps to four IP numbers: 2606:4700:3034::6815:c9c, 2606:4700:3037::ac43:842f, 104.21.12.156 and 172.67.132.47.
Other host names, for instance www.opdj0h3.com, njwscwzx.com, billionvegas.online, kucoin18.top and www.(0x616e616c)4teens.com share IP numbers with openstring.io.
Name Servers
Two name servers fatima.ns.cloudflare.com and fred.ns.cloudflare.com handle delegation for openstring.io.
openstring.io uses the same name server setup as other domains, for example 98wincoin.com, mangavl.net, cherryhillgourmet.net, bett88.club and 86bet.digital.
openstring.io partially shares name servers with other domains; examples include fmchp.com, pastusek.com, marlin688.online, bits-lab.info and myoplasmspace.digital.
These name servers are often used with the name servers pedro.ns.cloudflare.com and dylan.ns.cloudflare.com.
Host names with six IP numbers: fatima.ns.cloudflare.com points to: 2606:4700:50::a29f:26bc, 2803:f800:50::6ca2:c2bc, 2a06:98c1:50::ac40:22bc, 108.162.194.188, 162.159.38.188 and 172.64.34.188; fred.ns.cloudflare.com points to: 2606:4700:58::adf5:3b71, 2803:f800:50::6ca2:c171, 2a06:98c1:50::ac40:2171, 108.162.193.113, 172.64.33.113 and 173.245.59.113.