21express.com - robtex.com
21express.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.252.151.55🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| NS | ns1.s415.sureserver.com ⭐ | ||||||
| A | 192.252.151.37🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | s415.sureserver.com | ||||||
| NS | ns2.s415.sureserver.com | ||||||
| A | 192.252.152.37🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| PTR | ns2.s415.sureserver.com | ||||||
| MX | mail.21express.com ⭐ | ||||||
| A | 192.252.151.55🇺🇸 ICDSoft192.252.144.0/20 SURESUPPORT LLC Waltham, MA, USA | ||||||
| TXT | v=spf1 a mx include:s415.smtp-spf.sureserver.com ~all | ||||||
| SOA | ns1.s415.sureserver.comhostmaster@21express.com serial=1785233139 | ||||||
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=1785237122 | ||||||
Subdomains
mail.21express.com |
Same first word
21express.com |
Similar names
DNS History
8 records (4 active, 4 former)
●NSns1.s415.sureserver.com2026-07-16 → 2026-07-28 · 3 obs
● 2026-07-16 03:27:58
● 2026-07-28 11:20:18
○NSns1.server313.com2015-06-03 → 2020-01-29 · 4 obs
● 2020-01-29 20:33:04
○ 2026-07-16 03:27:58
○ 2026-07-28 11:20:18
●NSns2.s415.sureserver.com2026-07-16 → 2026-07-28 · 3 obs
● 2026-07-16 03:27:58
● 2026-07-28 11:20:18
○NSns2.server313.com2015-06-03 → 2020-01-29 · 4 obs
● 2020-01-29 20:33:04
○ 2026-07-16 03:27:58
○ 2026-07-28 11:20:18
●MXmail.21express.com2015-06-03 → 2026-07-28 · 2 obs
● 2026-07-28 11:20:18
○A192.252.149.502017-04-04 → 2020-01-29 · 5 obs
● 2017-04-04 23:48:50
● 2020-01-29 20:33:04
○ 2026-07-16 03:27:58
○ 2026-07-28 11:20:18
●A192.252.151.552026-07-16 → 2026-07-28 · 3 obs
● 2026-07-16 03:27:58
● 2026-07-28 11:20:18
○A216.35.196.742015-06-03 → 2016-07-16 · 4 obs
● 2016-07-16 09:31:00
○ 2017-04-04 23:48:50
○ 2026-07-28 11:20:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, c.gtld-servers.net... | - |
| 21express.com | ns1.s415.sureserver.com, ns2.s415.sureserver.com | 2 records |
✅ Authoritative Response
Server:192.252.152.37
NS records: ns1.s415.sureserver.com, ns2.s415.sureserver.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21express.com (unsigned zone)
⏱️ Timing
Total: 188ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.252.151.55 |
| NS | 2 | ns1.s415.sureserver.com, ns2.s415.sureserver.com |
| MX | 1 | mail.21express.com (pri: 0) |
| TXT | 1 | v=spf1 a mx include:s415.smtp-spf.surese |
| SOA | 1 | ns1.s415.sureserver.com hostmaster.21exp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.s415.sureserver.com, ns2.s415.sureserver.com)
Analysis
Hierarchy
The domain mail.21express.com falls under the parent 21express.com.
IP Addresses
21express.com resolves to one IP address: 192.252.151.55.
mail.souqalashab.com, chorizolassevillanas.com, dolmatreks.com and two other host names share IP numbers with 21express.com.
Name Servers
21express.com uses two name servers for its delegation: ns1.s415.sureserver.com and ns2.s415.sureserver.com.
21express.com uses the same name servers as several other domains — among them dotpinc.com, goldkorn.net, goturpin.com and two more.
Each of ns1.s415.sureserver.com and ns2.s415.sureserver.com has one IP address: ns1.s415.sureserver.com uses 192.252.151.37 and ns2.s415.sureserver.com uses 192.252.152.37.
Mail Servers
Mail for 21express.com is handled by a single mail server, mail.21express.com.
mail.21express.com directs to just one IP number, 192.252.151.55.