🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`cs.utoronto.ca`

DNSSEC	⚠️ Not signed
A	128.100.3.40^{🇨🇦 AS239128.100.0.0/16 Peer1 route object}
		PTR	`apps0.cs.toronto.edu`
NS	`onoma.cs.toronto.edu` ⭐
		A	128.100.3.107^{🇨🇦 AS239128.100.0.0/16 Peer1 route object}
			PTR	`onoma.cs.toronto.edu`
NS	`bay.cs.utoronto.ca`
		A	128.100.1.1^{🇨🇦 AS239128.100.0.0/16 Peer1 route object}
			PTR	`bay.cs.toronto.edu`
NS	`ns2.utoronto.ca`
		A	128.100.72.168^{🇨🇦 AS239128.100.0.0/16 Peer1 route object}
			PTR	`ns2.eis.utoronto.ca`
NS	`ns7.utoronto.ca`
		A	162.243.71.42^{🇺🇸 DIGITALOCEAN162.243.0.0/17 DigitalOcean}
			PTR	`ns7.utoronto.ca`
MX	`alkyone.cs.utoronto.ca` ⭐
		A	128.100.3.121^{🇨🇦 AS239128.100.0.0/16 Peer1 route object}
			PTR	`alkyone.cs.toronto.edu`
TXT	`CSLab`
TXT	`MS=ms61575670`
TXT	`bcn=587B5F88-2CB4-11EE-AF63-664B09AB3D72`
TXT	`v=spf1 +a:mailers.cs.toronto.edu include:spf.protection.outlook.com ?all`
SOA	`onoma.cs.toronto.edu`hostmaster@cs.toronto.edu 2026-10-09 #0

`utoronto.ca`

	DNSSEC	⚠️ Not signed
	A	2620:12a:8000::1^{🇺🇸 Fastly2620:12a:8000::/44 Pantheon}
	A	2620:12a:8001::1^{🇺🇸 Fastly2620:12a:8000::/44 Pantheon}
	A	23.185.0.1^{🇺🇸 Fastly23.185.0.0/24 Pantheon}
	NS	`ans1.utoronto.ca` ⭐
	NS	`ns1.d-zone.ca`
	NS	`ns2.d-zone.ca`
	MX	`utoronto-ca.mail.protection.outlook.com` ⭐
	TXT	`docusign=80847bb1-e887-47d5-b104-cf63f8e3bac3`
	TXT	`anthropic-domain-verification-r05mrz=4UyBa5Cw6D2RV9Hy6nP1qPbk2`
	TXT	`38bf4df46c158d180f22361f870e4c48`
	TXT	`v=spf1 ip4:128.100.132.0/24 ip4:128.100.46.0/24 include:spf.protection.outloo...`
	TXT	`airtable-verification=b6c00b62fad8981071a4a163565d2014`
	TXT	`openai-domain-verification=dv-jwyowy4bjM2M4hqLYHLzDVRW`
	TXT	`atlassian-domain-verification=NYUirRcuGTHieqoDDOA1urA3O3ectAEM/8DMMgQ8bLKtUCQ...`
	TXT	`docusign=668454a4-fb56-4c8d-93b8-3443c0ff9812`
	TXT	`status-page-domain-verification=42dgkgmmw16m`
	TXT	`adobe-idp-site-verification=576a2585f28cfc23afa878030fbddff608ea5aef81ef9909c...`
	TXT	`pf07f8qcrhh6dlh69bns6ug674`
	TXT	`TAILSCALE-AgypQOMvv8oOYeWaommh`
	TXT	`have-i-been-pwned-verification=dweb_msabv35o7d4qcfmz7z7j7wqf`
	TXT	`google-gws-recovery-domain-verification=68902687`
	TXT	`bcn=37A2F2BE-C7F4-11ED-B356-8626DE9BF48C`
	TXT	`330fji2sj2c4336s0dla5c2ols`
	TXT	`RtZE2VEP2/QzIJjoV+T/snnUrsF+F++iTOv9Eq7NcsxQBCg8Bkn/ThofRktuubkRu1ScUYMLQY63Q...`
	TXT	`brevo-code:83ab89a88c5debbb2705c60771f07248`
	TXT	`MS=ms20198435`
	TXT	`ZOOM_verify_5A4kl6xEpfIcnBO26Ud44w`
	TXT	`google-site-verification=GjMb_hd1-jWiaU0Tm-d0dj_Bc6glya899VRQP3VlTE4`
	TXT	`google-site-verification=znm8bRr_x13to8pAj_sCSsyRCC_y5apsz54WKeIlYA8`
	SOA	`ans1.utoronto.ca`eis\@net\.eng.utoronto.ca 2026-10-16 #1

WOT: SAFE (93/100)
rank #646 globally
rank #6 in the tld

utoronto.ca

utoronto.cais the official domain of the University of Toronto, one of Canada's largest and most research-intensive universities, headquartered in Toronto, Ontario.

Key facts

Owner / operator: University of Toronto
TLD:.ca— Canada (ccTLD)
Primary purpose: Official university web presence, spanning academic, administrative, and student-facing services
Status: Active

Notable subdomains or services

As a large multi-campus institution, the university operates an extensive subdomain namespace:

library.utoronto.ca— University of Toronto Libraries portal
mail.utoronto.ca— Student and staff email/webmail access
learn.utoronto.ca— Learning management system (Quercus/Canvas)
portal.utoronto.ca— Student information portal (ACORN/ROSI)
.utoronto.ca— Faculty- and department-level sites (e.g.,law.utoronto.ca,medicine.utoronto.ca,rotman.utoronto.ca)
.utoronto.ca— Campus-specific presences (e.g.,utsc.utoronto.cafor Scarborough,utm.utoronto.cafor Mississauga)

Related domains

utoronto.edu— Sometimes referenced in legacy international contexts; primary canonical domain remains.ca
uoft.me— URL shortener used for official University of Toronto short links

WOT: SAFE (92/100)
📈 Tranco rank: #2,382

Subdomains

bay.cs.utoronto.ca

learning.cs.utoronto.ca

colony.cs.utoronto.ca

www.cs.utoronto.ca

sponge.cs.utoronto.ca

sponge-20.cs.utoronto.ca

alkyone.cs.utoronto.ca

Same first word

cs.sk

cs.training

cs.security

cs.ax

cs.direct

cs.cn

cs.ps

cs.co.mz

cs.sd.cn

cs.is-a.dev

cs.com

cs.coach

cs.gallery

cs.ha.cn

cs.dj

cs.dev

cs.org

cs.reisen

cs.org.nr

cs.or.kr

cs.bio

cs.cq.cn

cs.com.ru

cs.fi

cs.cnt.br

cs.myfirewall.org

cs.pages.dev

cs.net.gt

cs.gs.cn

cs.accountants

cs.mn

cs.new

cs.com.ag

cs.nz

cs.co.ao

cs.su

cs.ac.nz

cs.ventures

cs.degree

cs.insure

cs.bank

cs.com.sg

cs.edu.kg

cs.servequake.com

cs.edu.sa

cs.podzone.net

cs.email

cs.skin

cs.azure-api.net

cs.io

cs.canva-apps.cn

cs.construction

cs.hn

cs.net.my

cs.hzc.io

cs.gd

cs.co.nz

cs.com.se

cs.house

cs.org.mk

cs.com.pk

cs.digital

cs.be

cs.gt

cs.center

cs.farm

cs.od.ua

cs.tr

cs.design

cs.fj.cn

cs.network

cs.co.il

cs.net.ua

cs.net.pl

cs.com.my

cs.ln.cn

cs.krakow.pl

cs.com.ro

cs.support

cs.la

cs.place

cs.com.vn

cs.tn

cs.ca

cs.pl

cs.zone

cs.com.ph

cs.co.ma

cs.engineering

cs.fo

cs.gr

cs.finance

cs.com.uy

cs.spb.ru

cs.net.co

cs.co.zw

cs.fund

cs.kiev.ua

cs.ht

cs.surgery

Similar names

cs.bs

sc.systems

sc.mk

sc.lib.ia.us

sc.com.py

cs.co.ve

sc.gov

sc.uy

sc.gg

sc.sa

cs.camp

sc.net.pk

sc.fr

sc.ac.th

cs.kz

cs.law

sc.k12.mo.us

cs.is

sc.org.uk

sc.archi

cs.immo

cs.cl

sc.edu.my

cs.go.kr

cs.com.tw

sc.cool

sc.marketing

sc.tc

cs.town

sc.sg

cs.id.au

cs.hn.cn

cs.org.br

sc.coach

cs.lc

sc.ip-dynamic.org

cs.org.lv

cs.org.es

sc.com.gt

cs.report

sc.sh

cs.gg

cs.ltd

cs.org.cn

sc.productions

cs.sn.cn

sc.edu.eu.org

cs.kids

sc.voyage

cs.ru

cs.ink

cs.tours

cs.tax

cs.lt

cs.cab

cs.com.kz

sc.def.br

sc.legal

cs.cd

cs.appspot.com

cs.cool

cs.com.au

sc.lima.zone

cs.yn.cn

sc.be

cs.gold

sc.an.it

cs.one

sc.ms

sc.rs

cs.store

cs.dev.br

cs.co.uk

sc.consulting

sc.co.th

sc.net

cs.fit

cs.nl

sc.co.ke

sc.dns-dynamic.net

cs.legal

sc.hn

sc.bingo

cs.edu.rs

cs.k12.oh.us

cs.market

cs.sale

cs.com.ve

sc.holdings

cs.org.gg

cs.cm

cs.ninja

sc.nrw

cs.lutsk.ua

sc.co.nz

cs.day

sc.by

cs.co

cs.ac.th

sc.com.es

Previous names

Next names

DNS History

7 records (6 active, 1 former)

●NSbay.cs.utoronto.ca2015-07-08 → 2026-10-18 · 2 obs

● 2015-07-08 22:34:14
● 2026-10-18 20:38:54

●NSns2.utoronto.ca2015-07-08 → 2026-10-18 · 2 obs

● 2015-07-08 22:34:14
● 2026-10-18 20:38:54

●NSns7.utoronto.ca2026-02-15 → 2026-10-18 · 3 obs

○ 2021-01-25 19:04:52
● 2026-02-15 00:16:04
● 2026-10-18 20:38:54

●NSonoma.cs.toronto.edu2015-07-08 → 2026-10-18 · 7 obs

● 2015-07-08 22:34:14
● 2021-01-25 19:04:52
○ 2026-09-01 02:47:26
● 2026-09-01 05:08:44
○ 2026-09-08 05:37:22
● 2026-09-08 06:33:14
● 2026-10-18 20:38:54

●MXalkyone.cs.utoronto.ca2015-07-08 → 2026-10-18 · 7 obs

● 2015-07-08 22:34:14
● 2021-01-25 19:04:52
○ 2026-09-01 02:47:26
● 2026-09-01 05:08:44
○ 2026-09-08 05:37:22
● 2026-09-08 06:33:14
● 2026-10-18 20:38:54

○MXsponge.cs.utoronto.ca2026-04-20 → 2026-04-30 · 5 obs

○ 2021-01-25 19:04:52
● 2026-04-20 16:02:26
● 2026-04-30 07:14:08
○ 2026-05-12 10:13:38
○ 2026-10-18 20:38:54

●A128.100.3.402015-07-08 → 2026-10-18 · 7 obs

● 2015-07-08 22:34:14
● 2021-01-25 19:04:52
○ 2026-09-01 02:47:26
● 2026-09-01 05:08:44
○ 2026-09-08 05:37:22
● 2026-09-08 06:33:14
● 2026-10-18 20:38:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ca	c.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca	-
utoronto.ca	ns1.d-zone.ca, ns2.d-zone.ca	4 records
cs.utoronto.ca	ns2.utoronto.ca, ns7.utoronto.ca, bay.cs.utoronto.ca	1 record

✅ Authoritative Response

Server:128.100.1.1

NS records: ns2.utoronto.ca, ns7.utoronto.ca, bay.cs.utoronto.ca

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for utoronto.ca (unsigned zone)

⏱️ Timing

Total: 1594ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`128.100.3.40`
NS	3	`bay.cs.utoronto.ca, ns2.utoronto.ca...`
MX	1	`alkyone.cs.utoronto.ca (pri: 0)`
TXT	4	`CSLab, MS=ms61575670...`
SOA	1	`onoma.cs.toronto.edu hostmaster.cs.toron`

📌 Glue Records Collected

Total: 5

In-bailiwick: 1 (bay.cs.utoronto.ca)

Out-of-bailiwick: 4 (ns2.d-zone.ca, ns1.d-zone.ca, ns2.d-zone.ca...)

Analysis

Hierarchy

cs.utoronto.ca is the parent domain of bay.cs.utoronto.ca, learning.cs.utoronto.ca, colony.cs.utoronto.ca, www.cs.utoronto.ca, sponge.cs.utoronto.ca and a few other host names.

IP Addresses

cs.utoronto.ca resolves to one IP address: 128.100.3.40.

Host names such as cs.toronto.edu and apps0.cs.toronto.edu share IP numbers with cs.utoronto.ca.

Name Servers

The authoritative name servers for cs.utoronto.ca are ns2.utoronto.ca, ns7.utoronto.ca, bay.cs.utoronto.ca and onoma.cs.toronto.edu.

cs.utoronto.ca shares at least some of its name servers with other domains, including theory.utoronto.ca, 94.150.142.in-addr.arpa, 75.100.128.in-addr.arpa and two others.

These name servers are frequently seen alongside ns2.toronto.edu, ns7.toronto.edu, bay.cs.toronto.edu and 7 other name servers.

Each of the four hosts ns2.utoronto.ca, ns7.utoronto.ca, bay.cs.utoronto.ca and onoma.cs.toronto.edu points to a single IP address — ns2.utoronto.ca points to 128.100.72.168, ns7.utoronto.ca points to 162.243.71.42, bay.cs.utoronto.ca points to 128.100.1.1 and onoma.cs.toronto.edu points to 128.100.3.107.

Mail Servers

Mail for cs.utoronto.ca is handled by a single mail server, alkyone.cs.utoronto.ca.

cs.utoronto.ca's MX records match those of several other domains — for example learning.cs.utoronto.ca, colony.cs.utoronto.ca, sponge-20.cs.utoronto.ca and alkyone.cs.utoronto.ca.

There is one IP number for alkyone.cs.utoronto.ca: 128.100.3.121.

cs.utoronto.ca - robtex.com

cs.utoronto.ca

utoronto.ca

utoronto.ca

Key facts

Notable subdomains or services

Related domains

Subdomains

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`cs.utoronto.ca`

`utoronto.ca`