string.io - robtex.com
string.io
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=1778368030 | ||||||
Same first word
Similar names
DNS History
12 records (5 active, 7 former)
●NSns1.dnsimple.com2020-04-29 → 2026-05-09 · 2 obs
● 2026-05-09 23:37:28
●NSns2.dnsimple.com2020-04-29 → 2026-05-09 · 2 obs
● 2026-05-09 23:37:28
●NSns3.dnsimple.com2020-04-29 → 2026-05-09 · 2 obs
● 2026-05-09 23:37:28
●NSns4.dnsimple.com2020-04-29 → 2026-05-09 · 2 obs
● 2026-05-09 23:37:28
○MXalt1.aspmx.l.google.com2020-04-29 → 2021-04-02 · 4 obs
● 2021-04-02 08:48:34
○ 2026-03-17 17:52:06
○ 2026-05-09 23:37:28
○MXalt2.aspmx.l.google.com2020-04-29 → 2021-04-02 · 4 obs
● 2021-04-02 08:48:34
○ 2026-03-17 17:52:06
○ 2026-05-09 23:37:28
○MXaspmx.l.google.com2020-04-29 → 2021-04-02 · 4 obs
● 2021-04-02 08:48:34
○ 2026-03-17 17:52:06
○ 2026-05-09 23:37:28
○MXaspmx2.googlemail.com2020-04-29 → 2021-04-02 · 4 obs
● 2021-04-02 08:48:34
○ 2026-03-17 17:52:06
○ 2026-05-09 23:37:28
○MXaspmx3.googlemail.com2020-04-29 → 2021-04-02 · 4 obs
● 2021-04-02 08:48:34
○ 2026-03-17 17:52:06
○ 2026-05-09 23:37:28
○MXaspmx4.googlemail.com2020-04-29 → 2021-04-02 · 4 obs
● 2021-04-02 08:48:34
○ 2026-03-17 17:52:06
○ 2026-05-09 23:37:28
○MXaspmx5.googlemail.com2020-04-29 → 2021-04-02 · 4 obs
● 2021-04-02 08:48:34
○ 2026-03-17 17:52:06
○ 2026-05-09 23:37:28
●MXsmtp.google.com2026-03-17 → 2026-05-09 · 3 obs
● 2026-03-17 17:52:06
● 2026-05-09 23:37:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | c0.nic.io, a2.nic.io, a0.nic.io, b0.nic.io | - |
| string.io | ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com | - |
✅ Authoritative Response
Server:199.247.155.53
NS records: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for string.io (unsigned zone)
⏱️ Timing
Total: 517ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1.dnsimple.com, ns2.dnsimple.com... |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 1 | google-site-verification=0PHL7H0JY1lFqkL |
| SOA | 1 | ns1.dnsimple.com admin.dnsimple.com |
Analysis
Name Servers
string.io's delegation is handled by four name servers: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com and ns4.dnsimple.com.
string.io partially shares name servers with other domains; examples include uptoday.ca, magloft.com, sartajchowdhury.com, jimdefazioprints.com and shopno3.com.
These name servers are often used with the name servers ns4.dnsimple-edge.org and ns2.dnsimple-edge.net.
Host names with two IPs:
ns1.dnsimple.com points to 2400:cb00:2049:1::a29f:1804 and 162.159.24.4
ns2.dnsimple.com points to 2620:111:8005::53 and 199.247.153.53
ns3.dnsimple.com points to 2400:cb00:2049:1::a29f:1a04 and 162.159.26.4
ns4.dnsimple.com points to 2620:111:8007::53 and 199.247.155.53
Mail Servers
string.io is handled by a single mail server, smtp.google.com.
string.io has the same mail server setup as other domains, including thinkrpm.co.uk, appawar.com, shunkoh.jp, centurionoverseas.com and sigadvisoryllc.com.
string.io shares some mail servers with other domains, at least partially, such as insightone.net, vcamart.vn, easyspot.gr, hindtechzone.com and loften.com.
smtp.google.com points to nine IP numbers: 2607:f8b0:4004:c06::1b, 2607:f8b0:4004:c08::1b, 2607:f8b0:4004:c09::1a, 2607:f8b0:4004:c09::1b, 172.253.63.26, 172.253.63.27, 172.253.115.27, 172.253.122.26 and 172.253.122.27.