boulder.lib.co.us - robtex.com
boulder.lib.co.us
lib.co.us
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.localitymanagement.us ⭐ | ||||||
| NS | ns2.localitymanagement.us | ||||||
| NS | ns3.localitymanagement.us | ||||||
| NS | ns4.localitymanagement.us | ||||||
| SOA | ns1.localitymanagement.uslocality-support@about.us 2025-06-18 #47 | ||||||
rank #473771 globally
rank #6746 in the tld
WOT: SAFE (99/100)
Same first word
Similar names
DNS History
12 records (7 active, 5 former)
●NSdns1.ci.boulder.co.us2015-03-29 → 2026-05-15 · 2 obs
● 2026-05-15 06:58:12
●NSdns2.ci.boulder.co.us2015-03-29 → 2026-05-15 · 2 obs
● 2026-05-15 06:58:12
○NSdns3.ci.boulder.co.us2015-03-29 → 2017-03-21 · 4 obs
● 2017-03-21 19:30:44
○ 2026-05-14 14:47:42
○ 2026-05-15 06:58:12
●NStempwindowsdns1.boulder.local2026-05-14 → 2026-05-15 · 3 obs
● 2026-05-14 14:47:42
● 2026-05-15 06:58:12
●NStempwindowsdns2.boulder.local2026-05-14 → 2026-05-15 · 3 obs
● 2026-05-14 14:47:42
● 2026-05-15 06:58:12
●MXboulder-lib-co-us.mail.protection.outlook.com2026-05-14 → 2026-05-15 · 3 obs
● 2026-05-14 14:47:42
● 2026-05-15 06:58:12
●MXboulderlibrary-org.mail.protection.outlook.com2026-05-14 → 2026-05-15 · 3 obs
● 2026-05-14 14:47:42
● 2026-05-15 06:58:12
○MXboulderlibrary.org.inbound10.mxlogic.net2015-03-29 → 2016-06-04 · 4 obs
● 2016-06-04 16:58:24
○ 2017-03-21 19:30:44
○ 2026-05-15 06:58:12
○MXboulderlibrary.org.inbound10.mxlogicmx.net2015-03-29 → 2016-06-04 · 4 obs
● 2016-06-04 16:58:24
○ 2017-03-21 19:30:44
○ 2026-05-15 06:58:12
○MXus-smtp-inbound-1.mimecast.com2017-03-21 → 2017-03-21 · 4 obs
● 2017-03-21 19:30:44
○ 2026-05-14 14:47:42
○ 2026-05-15 06:58:12
○MXus-smtp-inbound-2.mimecast.com2017-03-21 → 2017-03-21 · 4 obs
● 2017-03-21 19:30:44
○ 2026-05-14 14:47:42
○ 2026-05-15 06:58:12
●A161.98.15.1652015-03-29 → 2026-05-15 · 2 obs
● 2026-05-15 06:58:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | n.cctld.us, m.cctld.us, b.cctld.us, y.cctld.us... | - |
| lib.co.us | ns2.localitymanagement.us, ns1.localitymanagement.us, ns4.localitymanagement.us, ns3.localitymanagement.us | 4 records |
| boulder.lib.co.us | dns1.ci.boulder.co.us, dns2.ci.boulder.co.us | - |
✅ Authoritative Response
Server:161.98.15.233
NS records: dns1.ci.boulder.co.us, dns2.ci.boulder.co.us
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for lib.co.us (unsigned zone)
⏱️ Timing
Total: 2995ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 161.98.15.165 |
| NS | 4 | dns2.ci.boulder.co.us, tempwindowsdns1.boulder.local... |
| MX | 2 | boulder-lib-co-us.mail.protection.outloo, boulderlibrary-org.mail.protection.outlo |
| TXT | 1 | nu+0+JWdxGJkWcoOflt143yq3pR0S/qhvJv7ARW5 |
| SOA | 1 | tempwindowsdns1.boulder.local dns2.ci.bo |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns4.localitymanagement.us, ns3.localitymanagement.us, ns2.localitymanagement.us...)
Analysis
IP Addresses
boulder.lib.co.us points to an IP address: 161.98.15.165.
Other host names, for instance libraryweb.ci.boulder.co.us, share IP numbers with boulder.lib.co.us.
Name Servers
boulder.lib.co.us delegates to four name servers: tempwindowsdns1.boulder.local, tempwindowsdns2.boulder.local, dns1.ci.boulder.co.us and dns2.ci.boulder.co.us.
boulder.lib.co.us shares name servers with other domains at least partially, for example ci.boulder.co.us.
These name servers are commonly used alongside dns3.ci.boulder.co.us.
Host names with one IP:
dns1.ci.boulder.co.us points to: 161.98.15.230
dns2.ci.boulder.co.us points to: 161.98.15.233
Mail Servers
boulder.lib.co.us is handled by two mail servers: boulder-lib-co-us.mail.protection.outlook.com and boulderlibrary-org.mail.protection.outlook.com.
Eight IP numbers per hostname:
boulder-lib-co-us.mail.protection.outlook.com maps to: 2a01:111:f403:f900::1, 2a01:111:f403:f904::, 2a01:111:f403:f904::1, 2a01:111:f403:f90e::1, 52.101.8.50, 52.101.8.52, 52.101.9.19 and 52.101.11.12.
boulderlibrary-org.mail.protection.outlook.com maps to: 2a01:111:f403:c946::1, 2a01:111:f403:f802::3, 2a01:111:f403:f902::1, 2a01:111:f403:f905::3, 52.101.8.51, 52.101.40.1, 52.101.41.54 and 52.101.50.7.