sraonline.ca - robtex.com
sraonline.ca
| DNSSEC | ⚠️ Not signed | ||||||
| A | 192.243.92.248 | ||||||
| NS | pdns85.ultradns.com ⭐ | ||||||
| A | 2001:502:f3ff::79🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | pdns85.ultradns.com | ||||||
| A | 156.154.64.85🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.com | ||||||
| NS | pdns85.ultradns.biz | ||||||
| A | 2610:a1:1015::79🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar | ||||||
| PTR | pdns85.ultradns.biz | ||||||
| A | 156.154.66.85🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.biz | ||||||
| NS | pdns85.ultradns.net | ||||||
| A | 2610:a1:1014::79🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | pdns85.ultradns.net | ||||||
| A | 156.154.65.85🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.net | ||||||
| NS | pdns85.ultradns.org | ||||||
| A | 2001:502:4612::79🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar | ||||||
| PTR | pdns85.ultradns.org | ||||||
| A | 156.154.67.85🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar | ||||||
| PTR | pdns85.ultradns.org | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | pdns85.ultradns.comhostmaster@mheducation.com 2014-12-09 #14 | ||||||
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=2604270230 | ||||||
Same first word
sraonline.net |
sraonline.ca |
sraonline.com |
Similar names
DNS History
5 records (5 active, 0 former)
●NSpdns85.ultradns.biz2026-04-22 → 2026-04-27 · 2 obs
● 2026-04-27 03:31:50
●NSpdns85.ultradns.com2026-04-22 → 2026-04-27 · 2 obs
● 2026-04-27 03:31:50
●NSpdns85.ultradns.net2026-04-22 → 2026-04-27 · 2 obs
● 2026-04-27 03:31:50
●NSpdns85.ultradns.org2026-04-22 → 2026-04-27 · 2 obs
● 2026-04-27 03:31:50
●A192.243.92.2482026-04-22 → 2026-04-27 · 2 obs
● 2026-04-27 03:31:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ca | c.ca-servers.ca, any.ca-servers.ca, j.ca-servers.ca, d.ca-servers.ca | - |
| sraonline.ca | pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net, pdns85.ultradns.org | - |
✅ Authoritative Response
Server:156.154.65.85
NS records: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net, pdns85.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sraonline.ca (unsigned zone)
⏱️ Timing
Total: 564ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.243.92.248 |
| NS | 4 | pdns85.ultradns.biz, pdns85.ultradns.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | pdns85.ultradns.com hostmaster.mheducati |
Analysis
IP Addresses
sraonline.ca points to a single IP number: 192.243.92.248.
other host names for instance mymcgraw-hill.net, mcgraw-hill-education.biz, mcgrawhill-ryerson.com, glencomcgraw-hill.com and connectmgrawhill.com share IP numbers with sraonline.ca.
Name Servers
sraonline.ca is delegated to four name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.
sraonline.ca at least partially shares name servers with other domains, for instance jamestownpublishers.com, mcconnell16.com, mhpharmacotherapy.com, glencoeezine.com and mcgrawhillryerson.net.
Host names with two IP numbers:
Host name pdns85.ultradns.biz points to: 2610:a1:1015::79 and 156.154.66.85.
Host name pdns85.ultradns.com points to: 2001:502:f3ff::79 and 156.154.64.85.
Host name pdns85.ultradns.net points to: 2610:a1:1014::79 and 156.154.65.85.
Host name pdns85.ultradns.org points to: 2001:502:4612::79 and 156.154.67.85.