briefcheck.com - robtex.com
briefcheck.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 138.12.4.176🇺🇸 AS32472138.12.0.0/17 | ||||||
| NS | ns1.reedelsevier.com ⭐ | ||||||
| A | 138.12.4.5🇺🇸 AS32472138.12.0.0/17 | ||||||
| PTR | ns1.reedelsevier.com | ||||||
| NS | ns2.reedelsevier.com | ||||||
| A | 198.176.82.98🇬🇧 REED-ELSEVIER-EMEA-GCC198.176.82.0/24 | ||||||
| NS | ns3.reedelsevier.com | ||||||
| A | 198.176.82.101🇬🇧 REED-ELSEVIER-EMEA-GCC198.176.82.0/24 | ||||||
| PTR | ns3.reedelsevier.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.reedelsevier.comhostmaster@lexisnexis.com serial=62 | ||||||
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=1776970416 | ||||||
Same first word
briefcheck.com |
Similar names
DNS History
9 records (4 active, 5 former)
○NSns1.lexis-nexis.com2015-06-30 → 2016-02-27 · 4 obs
● 2016-02-27 04:48:26
○ 2016-06-18 02:21:00
○ 2026-04-23 18:56:32
●NSns1.reedelsevier.com2016-06-18 → 2026-04-23 · 3 obs
● 2016-06-18 02:21:00
● 2026-04-23 18:56:32
○NSns2.lexisnexis.com2015-06-30 → 2016-02-27 · 4 obs
● 2016-02-27 04:48:26
○ 2016-06-18 02:21:00
○ 2026-04-23 18:56:32
●NSns2.reedelsevier.com2016-06-18 → 2026-04-23 · 3 obs
● 2016-06-18 02:21:00
● 2026-04-23 18:56:32
○NSns3.lexisnexis.com2015-06-30 → 2016-02-27 · 4 obs
● 2016-02-27 04:48:26
○ 2016-06-18 02:21:00
○ 2026-04-23 18:56:32
●NSns3.reedelsevier.com2016-06-18 → 2026-04-23 · 3 obs
● 2016-06-18 02:21:00
● 2026-04-23 18:56:32
○NSns4.lexisnexis.com2015-06-30 → 2016-02-27 · 4 obs
● 2016-02-27 04:48:26
○ 2016-06-18 02:21:00
○ 2026-04-23 18:56:32
○A138.12.4.1742015-06-30 → 2020-02-12 · 4 obs
● 2020-02-12 13:05:56
○ 2026-04-20 09:04:34
○ 2026-04-23 18:56:32
●A138.12.4.1762026-04-20 → 2026-04-23 · 3 obs
● 2026-04-20 09:04:34
● 2026-04-23 18:56:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| briefcheck.com | ns1.reedelsevier.com, ns2.reedelsevier.com, ns3.reedelsevier.com | 3 records |
✅ Authoritative Response
Server:138.12.4.5
NS records: ns1.reedelsevier.com, ns2.reedelsevier.com, ns3.reedelsevier.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for briefcheck.com (unsigned zone)
⏱️ Timing
Total: 3184ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 138.12.4.176 |
| NS | 3 | ns3.reedelsevier.com, ns2.reedelsevier.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.reedelsevier.com hostmaster.lexisnex |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.reedelsevier.com, ns2.reedelsevier.com, ns3.reedelsevier.com)
Analysis
IP Addresses
briefcheck.com resolves to one IP number: 138.12.4.176.
other host names including pensionsprofessional.com, lexisrubdown.com, matthew-bender.info, lexis.tw and lexismail.com share IP numbers with briefcheck.com.
Name Servers
briefcheck.com is delegated to three name servers ns1.reedelsevier.com, ns2.reedelsevier.com and ns3.reedelsevier.com.
briefcheck.com at least partially shares name servers with other domains, for instance bsacertification.com, lexisanexis.com, ibroneuroscience.com, lexiscnlawyer.com.cn and lexisnexistraining.com.
Host names with one IP number: ns1.reedelsevier.com points to 138.12.4.5; ns2.reedelsevier.com points to 198.176.82.98; ns3.reedelsevier.com points to 198.176.82.101.