rblc.com - robtex.com

rblc.com

DNSSEC⚠️ Not signed
NSpdns85.ultradns.biz ⚠️ Not in zone NS records
A2610:a1:1015::79🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar
PTRpdns85.ultradns.biz
A156.154.66.85🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar
PTRpdns85.ultradns.biz
NSpdns85.ultradns.com ⚠️ Not in zone NS records
A2001:502:f3ff::79🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar
PTRpdns85.ultradns.com
A156.154.64.85🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar
PTRpdns85.ultradns.com
NSpdns85.ultradns.net ⚠️ Not in zone NS records
A2610:a1:1014::79🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar
PTRpdns85.ultradns.net
A156.154.65.85🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar
PTRpdns85.ultradns.net
NSpdns85.ultradns.org ⚠️ Not in zone NS records
A2001:502:4612::79🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar
PTRpdns85.ultradns.org
A156.154.67.85🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar
PTRpdns85.ultradns.org

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1777064326

Same first word

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DNS History

9 records (4 active, 5 former)

2008201020122014201620182020202220242026NSpdns85.ultradns.bizpdns85.ultradns.compdns85.ultradns.netpdns85.ultradns.orgns1.mhedu.comns2.mhedu.comMXzeus.rblc.comA10.216.80.141168.116.224.98
○NSns1.mhedu.com2007-10-23 → 2007-10-23 · 3 obs
● 2007-10-23 21:27:26
○ 2015-08-04 08:17:24
○ 2026-04-24 21:07:14
○NSns2.mhedu.com2007-10-23 → 2007-10-23 · 3 obs
● 2007-10-23 21:27:26
○ 2015-08-04 08:17:24
○ 2026-04-24 21:07:14
●NSpdns85.ultradns.biz2015-08-04 → 2026-04-24 · 3 obs
○ 2007-10-23 21:27:26
● 2015-08-04 08:17:24
● 2026-04-24 21:07:14
●NSpdns85.ultradns.com2015-08-04 → 2026-04-24 · 3 obs
○ 2007-10-23 21:27:26
● 2015-08-04 08:17:24
● 2026-04-24 21:07:14
●NSpdns85.ultradns.net2015-08-04 → 2026-04-24 · 3 obs
○ 2007-10-23 21:27:26
● 2015-08-04 08:17:24
● 2026-04-24 21:07:14
●NSpdns85.ultradns.org2015-08-04 → 2026-04-24 · 3 obs
○ 2007-10-23 21:27:26
● 2015-08-04 08:17:24
● 2026-04-24 21:07:14
○MXzeus.rblc.com2007-10-23 → 2017-01-22 · 4 obs
● 2007-10-23 21:27:26
● 2017-01-22 14:25:28
○ 2026-04-23 12:38:48
○ 2026-04-24 21:07:14
○A10.216.80.1412015-08-04 → 2017-01-22 · 5 obs
○ 2007-10-23 21:27:26
● 2015-08-04 08:17:24
● 2017-01-22 14:25:28
○ 2026-04-23 12:38:48
○ 2026-04-24 21:07:14
○A168.116.224.982007-10-23 → 2007-10-23 · 3 obs
● 2007-10-23 21:27:26
○ 2015-08-04 08:17:24
○ 2026-04-24 21:07:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net...-
rblc.compdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org2 records

✅ Authoritative Response

Server:156.154.64.85

NS records: pdns85.ultradns.net, pdns85.ultradns.com, pdns85.ultradns.biz, pdns85.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rblc.com (unsigned zone)

⏱️ Timing

Total: 1285ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns85.ultradns.com, pdns85.ultradns.com)

Analysis

Name Servers

rblc.com is delegated to four name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.

rblc.com shares some name servers with other domains, for example mymcgrawhill.net, 7.42.247.64.in-addr.arpa, brueonline.com, instructionalfairgroup.com and mcgrawhill-ryerson.com.

Host names with two IP numbers

Two IPs per host:

pdns85.ultradns.biz points to 2610:a1:1015::79 and 156.154.66.85

pdns85.ultradns.com points to 2001:502:f3ff::79 and 156.154.64.85

pdns85.ultradns.net points to 2610:a1:1014::79 and 156.154.65.85

pdns85.ultradns.org points to 2001:502:4612::79 and 156.154.67.85