utlib.ca - dns.ninja
utlib.ca
| DNSSEC | ⚠️ Not signed | ||||||
| A | 142.1.120.111🇨🇦 AS239142.1.0.0/16 | ||||||
| A | 142.1.120.112🇨🇦 AS239142.1.0.0/16 | ||||||
| A | 142.1.120.113🇨🇦 AS239142.1.0.0/16 | ||||||
| NS | primarydns.library.utoronto.ca ⭐ | ||||||
| A | 142.150.190.48🇨🇦 AS239142.150.128.0/17 | ||||||
| PTR | primarydns.library.utoronto.ca | ||||||
| NS | dns1.library.utoronto.ca ⚠️ Not in zone NS records | ||||||
| NS | ns1.library.utoronto.ca ⚠️ Not in parent delegation | ||||||
| A | 142.150.192.5🇨🇦 AS239142.150.128.0/17 | ||||||
| PTR | ns1.library.utoronto.ca | ||||||
| NS | ns2.library.utoronto.ca ⚠️ Not in parent delegation | ||||||
| A | 128.100.121.5🇨🇦 AS239128.100.0.0/16 Peer1 route object | ||||||
| NS | ns2.utoronto.ca ⚠️ Not in parent delegation | ||||||
| A | 128.100.72.168🇨🇦 AS239128.100.0.0/16 Peer1 route object | ||||||
| PTR | ns2.eis.utoronto.ca | ||||||
| NS | ns7.utoronto.ca ⚠️ Not in parent delegation | ||||||
| A | 162.243.71.42🇺🇸 DIGITALOCEAN162.243.0.0/17 DigitalOcean | ||||||
| PTR | ns7.utoronto.ca | ||||||
| MX | mail.library.utoronto.ca ⭐ | ||||||
| A | 142.150.190.119🇨🇦 AS239142.150.128.0/17 | ||||||
| TXT | University of Toronto Libraries, Ontario, Canada | ||||||
| SOA | primarydns.library.utoronto.cahostmaster@library.utoronto.ca 2026-06-23 #3 | ||||||
ca
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | prd-czp-05.corp.cira.ca ⭐ | ||||||
| NS | any.ca-servers.ca | ||||||
| NS | c.ca-servers.ca | ||||||
| NS | d.ca-servers.ca | ||||||
| NS | j.ca-servers.ca | ||||||
| SOA | prd-czp-05.corp.cira.caadmin-dns@cira.ca serial=2606281800 | ||||||
Subdomains
go.utlib.ca |
Same first word
Similar names
DNS History
14 records (10 active, 4 former)
○NSdns.library.utoronto.ca2015-08-17 → 2017-02-20 · 4 obs
● 2017-02-20 14:17:36
○ 2019-03-23 19:02:14
○ 2026-06-28 18:41:22
●NSdns1.library.utoronto.ca2015-08-17 → 2026-06-28 · 5 obs
● 2017-02-20 14:17:36
○ 2019-03-23 19:02:14
● 2026-02-22 23:35:14
● 2026-06-28 18:41:22
○NSdns2.library.utoronto.ca2015-08-17 → 2017-02-20 · 4 obs
● 2017-02-20 14:17:36
○ 2019-03-23 19:02:14
○ 2026-06-28 18:41:22
○NSns.library.utoronto.ca2019-03-23 → 2026-06-11 · 5 obs
● 2019-03-23 19:02:14
● 2026-06-11 01:35:24
○ 2026-06-26 07:35:12
○ 2026-06-28 18:41:22
●NSns1.library.utoronto.ca2019-03-23 → 2026-06-28 · 3 obs
● 2019-03-23 19:02:14
● 2026-06-28 18:41:22
●NSns2.library.utoronto.ca2019-03-23 → 2026-06-28 · 3 obs
● 2019-03-23 19:02:14
● 2026-06-28 18:41:22
●NSns2.utoronto.ca2015-08-17 → 2026-06-28 · 2 obs
● 2026-06-28 18:41:22
●NSns7.utoronto.ca2026-06-26 → 2026-06-28 · 3 obs
● 2026-06-26 07:35:12
● 2026-06-28 18:41:22
●NSprimarydns.library.utoronto.ca2015-08-17 → 2026-06-28 · 5 obs
● 2017-02-20 14:17:36
○ 2019-03-23 19:02:14
● 2026-02-22 23:35:14
● 2026-06-28 18:41:22
●MXmail.library.utoronto.ca2019-03-23 → 2026-06-28 · 3 obs
● 2019-03-23 19:02:14
● 2026-06-28 18:41:22
○MXmailer.library.utoronto.ca2015-08-17 → 2017-02-20 · 4 obs
● 2017-02-20 14:17:36
○ 2019-03-23 19:02:14
○ 2026-06-28 18:41:22
●A142.1.120.1112019-03-23 → 2026-06-28 · 2 obs
● 2026-06-28 18:41:22
●A142.1.120.1122019-03-23 → 2026-06-28 · 2 obs
● 2026-06-28 18:41:22
●A142.1.120.1132019-03-23 → 2026-06-28 · 2 obs
● 2026-06-28 18:41:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | c.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca | - |
| utlib.ca | primarydns.library.utoronto.ca, dns1.library.utoronto.ca | 2 records |
✅ Authoritative Response
Server:142.150.192.5
NS records: primarydns.library.utoronto.ca, dns1.library.utoronto.ca
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for utlib.ca (unsigned zone)
⏱️ Timing
Total: 1001ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 142.1.120.112, 142.1.120.111... |
| NS | 5 | ns2.utoronto.ca, ns1.library.utoronto.ca... |
| MX | 1 | mail.library.utoronto.ca (pri: 0) |
| TXT | 1 | University of Toronto Libraries, Ontario |
| SOA | 1 | primarydns.library.utoronto.ca hostmaste |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (primarydns.library.utoronto.ca, dns1.library.utoronto.ca)
Analysis
Hierarchy
go.utlib.ca is delegated beneath utlib.ca.
IP Addresses
utlib.ca directs to three IP numbers: 142.1.120.111, 142.1.120.112 and 142.1.120.113.
utlib.ca shares its IP numbers with other host names, including exhibits.library.utoronto.ca, heritage.utoronto.ca, s2-120-111.library.utoronto.ca and frontend.library.utoronto.ca.
Name Servers
utlib.ca carries NS records listing 6 name servers — ns2.utoronto.ca, ns7.utoronto.ca, dns1.library.utoronto.ca and 3 others.
There is at least partial name server overlap between utlib.ca and other domains — cdf.utoronto.ca, geog.utoronto.ca, 8.100.128.in-addr.arpa and two more among them.
These name servers regularly appear alongside ns2.library.utoronto.ca, primarydns.library.utoronto.ca, ns1.library.utoronto.ca and 7 other name servers in NS record sets.
Hosts with just one IP address:
ns2.utoronto.ca resolves to the IP address 128.100.72.168.
ns7.utoronto.ca resolves to the IP address 162.243.71.42.
ns1.library.utoronto.ca resolves to the IP address 142.150.192.5.
ns2.library.utoronto.ca resolves to the IP address 128.100.121.5.
primarydns.library.utoronto.ca resolves to the IP address 142.150.190.48.
Mail Servers
Mail for utlib.ca is handled by a single mail server, mail.library.utoronto.ca.
Like heritage.utoronto.ca and library.utoronto.ca, utlib.ca has the same mail server arrangement as several other domains.
mail.library.utoronto.ca resolves to 142.150.190.119 and no other IP number.