cstdio.com - robtex.com
cstdio.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784623307 | ||||||
Same first word
cstdio.com |
Similar names
DNS History
21 records (7 active, 14 former)
●NSdina.ns.cloudflare.com2015-06-19 → 2026-07-21 · 2 obs
● 2026-07-21 09:03:18
●NSfred.ns.cloudflare.com2015-06-19 → 2026-07-21 · 2 obs
● 2026-07-21 09:03:18
●MXalt1.aspmx.l.google.com2015-06-19 → 2026-07-21 · 5 obs
● 2016-01-21 01:04:50
○ 2016-08-19 21:33:10
● 2020-03-15 22:50:08
● 2026-07-21 09:03:18
●MXalt2.aspmx.l.google.com2015-06-19 → 2026-07-21 · 5 obs
● 2016-01-21 01:04:50
○ 2016-08-19 21:33:10
● 2020-03-15 22:50:08
● 2026-07-21 09:03:18
●MXalt3.aspmx.l.google.com2020-03-15 → 2026-07-21 · 3 obs
● 2020-03-15 22:50:08
● 2026-07-21 09:03:18
●MXalt4.aspmx.l.google.com2020-03-15 → 2026-07-21 · 3 obs
● 2020-03-15 22:50:08
● 2026-07-21 09:03:18
●MXaspmx.l.google.com2015-06-19 → 2026-07-21 · 5 obs
● 2016-01-21 01:04:50
○ 2016-08-19 21:33:10
● 2020-03-15 22:50:08
● 2026-07-21 09:03:18
○MXaspmx2.googlemail.com2015-06-19 → 2016-01-21 · 4 obs
● 2016-01-21 01:04:50
○ 2016-08-19 21:33:10
○ 2026-07-21 09:03:18
○MXaspmx3.googlemail.com2015-06-19 → 2016-01-21 · 4 obs
● 2016-01-21 01:04:50
○ 2016-08-19 21:33:10
○ 2026-07-21 09:03:18
○MXaspmx4.googlemail.com2015-06-19 → 2016-01-21 · 4 obs
● 2016-01-21 01:04:50
○ 2016-08-19 21:33:10
○ 2026-07-21 09:03:18
○MXaspmx5.googlemail.com2015-06-19 → 2016-01-21 · 4 obs
● 2016-01-21 01:04:50
○ 2016-08-19 21:33:10
○ 2026-07-21 09:03:18
○A104.21.2.762021-10-09 → 2021-10-09 · 4 obs
● 2021-10-09 20:08:30
○ 2026-02-28 23:25:14
○ 2026-07-21 09:03:18
○A104.28.6.152015-06-19 → 2020-03-15 · 4 obs
● 2020-03-15 22:50:08
○ 2021-10-09 20:08:30
○ 2026-07-21 09:03:18
○A104.28.7.152015-06-19 → 2020-03-15 · 4 obs
● 2020-03-15 22:50:08
○ 2021-10-09 20:08:30
○ 2026-07-21 09:03:18
○A172.67.128.2282021-10-09 → 2021-10-09 · 4 obs
● 2021-10-09 20:08:30
○ 2026-02-28 23:25:14
○ 2026-07-21 09:03:18
○A2400:cb00:2048:1::681c:60f2017-03-27 → 2017-03-27 · 4 obs
● 2017-03-27 19:25:00
○ 2020-03-15 22:50:08
○ 2026-07-21 09:03:18
○A2400:cb00:2048:1::681c:70f2017-03-27 → 2017-03-27 · 4 obs
● 2017-03-27 19:25:00
○ 2020-03-15 22:50:08
○ 2026-07-21 09:03:18
○A2606:4700:3033::681c:70f2020-03-15 → 2020-03-15 · 4 obs
● 2020-03-15 22:50:08
○ 2021-10-09 20:08:30
○ 2026-07-21 09:03:18
○A2606:4700:3036::6815:24c2021-10-09 → 2021-10-09 · 4 obs
● 2021-10-09 20:08:30
○ 2026-02-28 23:25:14
○ 2026-07-21 09:03:18
○A2606:4700:3036::681c:60f2020-03-15 → 2020-03-15 · 4 obs
● 2020-03-15 22:50:08
○ 2021-10-09 20:08:30
○ 2026-07-21 09:03:18
○A2606:4700:3037::ac43:80e42021-10-09 → 2021-10-09 · 4 obs
● 2021-10-09 20:08:30
○ 2026-02-28 23:25:14
○ 2026-07-21 09:03:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cstdio.com | dina.ns.cloudflare.com, fred.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.113
NS records: dina.ns.cloudflare.com, fred.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cstdio.com (unsigned zone)
⏱️ Timing
Total: 177ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dina.ns.cloudflare.com, fred.ns.cloudflare.com |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| SOA | 1 | dina.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (dina.ns.cloudflare.com, dina.ns.cloudflare.com, dina.ns.cloudflare.com...)
Analysis
Name Servers
cstdio.com is served by two delegated name servers, dina.ns.cloudflare.com and fred.ns.cloudflare.com.
The name server configuration of cstdio.com is shared with other domains, for instance wko.com.hk, astscience.com.tw, lcgzone.com and two others.
cstdio.com partially shares its NS delegation with several other domains, including vanhoofdameskleding.net, drugowl.com, flapadar.co.uk and two others.
These name servers are regularly seen alongside fatima.ns.cloudflare.com and dom.ns.cloudflare.com as name servers.
Hosts with 6 IP addresses each:
dina.ns.cloudflare.com carries IP addresses 108.162.192.107, 172.64.32.107 and 173.245.58.107, with 3 other addresses beyond those.
fred.ns.cloudflare.com carries IP addresses 108.162.193.113, 172.64.33.113 and 173.245.59.113, with 3 other addresses beyond those.
Mail Servers
cstdio.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
At least some of the mail servers used by cstdio.com are shared with other domains: chemistryteam.com, nrhworks.com, houseofgolf.com.au and two others among them.
These mail servers often appear in conjunction with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names pointing to two IP addresses:
aspmx.l.google.com maps to two IP addresses — 64.233.180.27 and 2607:f8b0:4004:c08::1a.
alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.27 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.26 and 2a00:1450:400c:c23::1b.