tech.bio - dns.ninja
tech.bio
bio
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.bio ⭐ | ||||||
| NS | a2.nic.bio | ||||||
| NS | b0.nic.bio | ||||||
| NS | c0.nic.bio | ||||||
| SOA | a0.nic.biohostmaster@donuts.email serial=1786143403 | ||||||
Subdomains
www.tech.bio |
Same first word
Similar names
DNS History
21 records (11 active, 10 former)
●NScosmin.ns.cloudflare.com2026-05-02 → 2026-08-07 · 3 obs
● 2026-05-02 07:40:50
● 2026-08-07 23:40:18
○NSns1.dtnt.info2019-12-20 → 2026-04-26 · 4 obs
● 2026-04-26 19:36:34
○ 2026-05-02 07:40:50
○ 2026-08-07 23:40:18
○NSns2.dtnt.info2019-12-20 → 2026-04-26 · 4 obs
● 2026-04-26 19:36:34
○ 2026-05-02 07:40:50
○ 2026-08-07 23:40:18
○NSns3.dtnt.info2019-12-20 → 2026-04-26 · 4 obs
● 2026-04-26 19:36:34
○ 2026-05-02 07:40:50
○ 2026-08-07 23:40:18
●NSopal.ns.cloudflare.com2026-05-02 → 2026-08-07 · 3 obs
● 2026-05-02 07:40:50
● 2026-08-07 23:40:18
●MXalt1.aspmx.l.google.com2019-12-20 → 2026-08-07 · 6 obs
● 2026-04-23 05:41:56
○ 2026-04-24 10:27:02
○ 2026-04-24 23:50:02
● 2026-04-26 19:36:34
● 2026-08-07 23:40:18
●MXalt2.aspmx.l.google.com2019-12-20 → 2026-08-07 · 6 obs
● 2026-04-23 05:41:56
○ 2026-04-24 10:27:02
○ 2026-04-24 23:50:02
● 2026-04-26 19:36:34
● 2026-08-07 23:40:18
●MXalt3.aspmx.l.google.com2019-12-20 → 2026-08-07 · 6 obs
● 2026-04-23 05:41:56
○ 2026-04-24 10:27:02
○ 2026-04-24 23:50:02
● 2026-04-26 19:36:34
● 2026-08-07 23:40:18
●MXalt4.aspmx.l.google.com2019-12-20 → 2026-08-07 · 6 obs
● 2026-04-23 05:41:56
○ 2026-04-24 10:27:02
○ 2026-04-24 23:50:02
● 2026-04-26 19:36:34
● 2026-08-07 23:40:18
●MXaspmx.l.google.com2019-12-20 → 2026-08-07 · 6 obs
● 2026-04-23 05:41:56
○ 2026-04-24 10:27:02
○ 2026-04-24 23:50:02
● 2026-04-26 19:36:34
● 2026-08-07 23:40:18
●A104.21.74.2452026-05-02 → 2026-08-07 · 3 obs
● 2026-05-02 07:40:50
● 2026-08-07 23:40:18
●A172.67.207.2422026-05-02 → 2026-08-07 · 3 obs
● 2026-05-02 07:40:50
● 2026-08-07 23:40:18
○A198.185.159.1442019-12-20 → 2021-06-12 · 4 obs
● 2021-06-12 05:59:20
○ 2026-02-20 15:31:22
○ 2026-08-07 23:40:18
○A198.185.159.1452019-12-20 → 2021-06-12 · 4 obs
● 2021-06-12 05:59:20
○ 2026-02-20 15:31:22
○ 2026-08-07 23:40:18
○A198.49.23.1442019-12-20 → 2021-06-12 · 4 obs
● 2021-06-12 05:59:20
○ 2026-02-20 15:31:22
○ 2026-08-07 23:40:18
○A198.49.23.1452019-12-20 → 2021-06-12 · 4 obs
● 2021-06-12 05:59:20
○ 2026-02-20 15:31:22
○ 2026-08-07 23:40:18
○A2606:4700:3032::ac43:cff22026-05-02 → 2026-06-16 · 5 obs
● 2026-05-02 07:40:50
● 2026-06-16 20:58:24
○ 2026-06-25 12:12:24
○ 2026-08-07 23:40:18
●A2606:4700:3033::6815:4af52026-06-25 → 2026-08-07 · 3 obs
● 2026-06-25 12:12:24
● 2026-08-07 23:40:18
○A2606:4700:3036::6815:4af52026-05-02 → 2026-06-16 · 5 obs
● 2026-05-02 07:40:50
● 2026-06-16 20:58:24
○ 2026-06-25 12:12:24
○ 2026-08-07 23:40:18
●A2606:4700:3037::ac43:cff22026-06-25 → 2026-08-07 · 3 obs
● 2026-06-25 12:12:24
● 2026-08-07 23:40:18
○A62.219.91.452026-02-20 → 2026-04-26 · 9 obs
● 2026-02-20 15:31:22
● 2026-04-22 21:11:02
○ 2026-04-23 05:41:56
○ 2026-04-24 10:27:02
● 2026-04-24 23:50:02
● 2026-04-26 19:36:34
○ 2026-05-02 07:40:50
○ 2026-08-07 23:40:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| bio | b0.nic.bio, a2.nic.bio, a0.nic.bio, c0.nic.bio | 8 records |
| tech.bio | opal.ns.cloudflare.com, cosmin.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.38.100
NS records: opal.ns.cloudflare.com, cosmin.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tech.bio (unsigned zone)
⏱️ Timing
Total: 910ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.74.245, 172.67.207.242 |
| AAAA | 2 | 2606:4700:3037::ac43:cff2, 2606:4700:3033::6815:4af5 |
| NS | 2 | cosmin.ns.cloudflare.com, opal.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 1 | google-site-verification=m48Mykt3z5AJmao |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | cosmin.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a0.nic.bio, a2.nic.bio, b0.nic.bio...)
Analysis
Hierarchy
tech.bio is a parent domain of www.tech.bio.
IP Addresses
tech.bio has four IP addresses: 104.21.74.245, 172.67.207.242, 2606:4700:3033::6815:4af5 and 2606:4700:3037::ac43:cff2.
Two other host names, along with psychestudy.com.cdn.cloudflare.net, dragonex.in and yivod.com, also share IP numbers with tech.bio.
Name Servers
tech.bio has two authoritative name servers — cosmin.ns.cloudflare.com and opal.ns.cloudflare.com.
tech.bio shares its NS records with other domains, for example shamirapps.com, elgev.co.il, xn--5dbqffhlc7ckw.com and two others.
tech.bio shares at least some of its name servers with other domains, including 7567888.com, yalla-shoot.team, aureliusledger.com and two others.
These name servers are frequently seen alongside the name servers tina.ns.cloudflare.com, olof.ns.cloudflare.com, malavika.ns.cloudflare.com and gerardo.ns.cloudflare.com.
DNS names with 6 IP addresses:
cosmin.ns.cloudflare.com points to 108.162.195.45, 162.159.44.45, 172.64.35.45 and 3 other IP addresses.
opal.ns.cloudflare.com points to 108.162.194.100, 162.159.38.100, 172.64.34.100 and 3 other IP addresses.
Mail Servers
Mail for tech.bio is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
There is at least a partial MX overlap between tech.bio and other domains, including rmwi.net, aiasacademy.it, lalomablanca.com and two others.
These mail servers tend to appear in combination with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.
Host names that have two IP addresses:
aspmx.l.google.com resolves to 64.233.180.27 and 2607:f8b0:4004:c29::1b.
alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com resolves to 172.253.157.27 and 2a00:1450:400c:c23::1b.