sievertgroup.com - dns.ninja
sievertgroup.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 64.135.156.72🇺🇸 AS1656764.135.152.0/21 | ||||||
| PTR | 64-135-156-72.netrixllc.com | ||||||
| NS | ns57.worldnic.com ⭐ | ||||||
| A | 162.159.26.165Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns58.worldnic.com | ||||||
| A | 162.159.27.8Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mail.interactivetwist.com ⭐ | ||||||
| A | 64.135.156.73🇺🇸 AS1656764.135.152.0/21 | ||||||
| PTR | 64-135-156-73.netrixllc.com | ||||||
| TXT | v=spf1 mx include:interactivetwist.com -all | ||||||
| SOA | NS57.WORLDNIC.comnamehost@WORLDNIC.com serial=120120122 | ||||||
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=1784884582 | ||||||
Subdomains
mail.sievertgroup.com |
hostmaster.sievertgroup.com |
Same first word
sievertgroup.com |
Similar names
DNS History
13 records (4 active, 9 former)
○NSit-ns1.interactivetwist.com2015-05-25 → 2015-10-24 · 5 obs
● 2015-05-25 10:11:26
● 2015-10-24 11:52:34
○ 2016-01-18 15:13:12
○ 2026-07-24 09:29:32
○NSit-ns2.interactivetwist.com2015-05-25 → 2015-10-24 · 5 obs
● 2015-05-25 10:11:26
● 2015-10-24 11:52:34
○ 2016-01-18 15:13:12
○ 2026-07-24 09:29:32
○NSit-ns3.interactivetwist.com2015-05-25 → 2015-10-24 · 5 obs
● 2015-05-25 10:11:26
● 2015-10-24 11:52:34
○ 2016-01-18 15:13:12
○ 2026-07-24 09:29:32
○NSns1.dnswebserver.net2008-01-15 → 2008-01-15 · 3 obs
○ 2015-05-25 10:11:26
○ 2026-07-24 09:29:32
○NSns2.dnswebserver.net2008-01-15 → 2008-01-15 · 3 obs
○ 2015-05-25 10:11:26
○ 2026-07-24 09:29:32
●NSns57.worldnic.com2016-01-18 → 2026-07-24 · 3 obs
● 2016-01-18 15:13:12
● 2026-07-24 09:29:32
●NSns58.worldnic.com2016-01-18 → 2026-07-24 · 3 obs
● 2016-01-18 15:13:12
● 2026-07-24 09:29:32
○MXit-mail-backup.interactivetwist.com2015-05-25 → 2017-10-20 · 5 obs
● 2015-05-25 10:11:26
● 2017-10-20 13:45:38
○ 2026-03-01 15:45:18
○ 2026-07-24 09:29:32
●MXmail.interactivetwist.com2015-05-25 → 2026-07-24 · 3 obs
● 2015-05-25 10:11:26
● 2026-07-24 09:29:32
○MXmail.sievertgroup.com2008-01-15 → 2008-01-15 · 3 obs
○ 2015-05-25 10:11:26
○ 2026-07-24 09:29:32
○A63.246.26.42008-01-15 → 2008-01-15 · 3 obs
○ 2015-05-25 10:11:26
○ 2026-07-24 09:29:32
●A64.135.156.722026-03-01 → 2026-07-24 · 3 obs
● 2026-03-01 15:45:18
● 2026-07-24 09:29:32
○A64.68.22.2432015-05-25 → 2017-10-20 · 5 obs
● 2015-05-25 10:11:26
● 2017-10-20 13:45:38
○ 2026-03-01 15:45:18
○ 2026-07-24 09:29:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sievertgroup.com | ns57.worldnic.com, ns58.worldnic.com | 2 records |
✅ Authoritative Response
Server:162.159.27.8
NS records: ns57.worldnic.com, ns58.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sievertgroup.com (unsigned zone)
⏱️ Timing
Total: 163ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 64.135.156.72 |
| NS | 2 | ns57.worldnic.com, ns58.worldnic.com |
| MX | 1 | mail.interactivetwist.com (pri: 10) |
| TXT | 1 | v=spf1 mx include:interactivetwist.com - |
| SOA | 1 | NS57.WORLDNIC.com namehost.WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns57.worldnic.com, ns58.worldnic.com)
Analysis
Hierarchy
The parent domain of mail.sievertgroup.com and hostmaster.sievertgroup.com is sievertgroup.com.
IP Addresses
sievertgroup.com directs to one IP number, which is 64.135.156.72.
Among the host names that share IP numbers with sievertgroup.com are ns1.interactivetwist.com, it-dev.interactivetwist.com, it-ns2.interactivetwist.com and two others.
Name Servers
sievertgroup.com is served by two delegated name servers, ns57.worldnic.com and ns58.worldnic.com.
sievertgroup.com has the same name server delegation as a number of other domains, such as braingrowth.com, macysw.com, a-c-t.com and two more.
ns57.worldnic.com directs to 162.159.26.165 and ns58.worldnic.com directs to 162.159.27.8; each host name points to exactly one IP number.
Mail Servers
sievertgroup.com routes its mail through a single mail server, mail.interactivetwist.com.
sievertgroup.com and domains like j(0x6469636b)concrete.com share an identical mail server configuration.
At least some of sievertgroup.com's mail servers are shared with other domains, among them pciiw.org, epoxyinterestgroup.org, epoxyinterestgroup.com and interactivetwist.com.
These mail servers tend to be used in combination with the mail servers it-mail-backup.interactivetwist.com and it-mail02.interactivetwist.com.
There is one IP number for mail.interactivetwist.com: 64.135.156.73.