usr.ac - dns.ninja
usr.ac
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.58.159.41🇳🇱 SHARKTECH-145.58.159.0/24 | ||||||
| PTR | customer.sharktech.net | ||||||
| NS | ns1.site4now.net ⭐ | ||||||
| A | 70.39.73.45🇺🇸 SHARKTECH-170.39.73.0/24 PNAP-CHG FDCS Route | ||||||
| PTR | jbe4j12sz.rollforsurprise.com | ||||||
| A | 204.188.197.84🇺🇸 SHARKTECH-1204.188.192.0/18 Sharktech Inc. | ||||||
| A | 204.188.197.246🇺🇸 SHARKTECH-1204.188.192.0/18 Sharktech Inc. | ||||||
| PTR | ns1.accessrgn.net | ||||||
| NS | ns2.site4now.net | ||||||
| A | 45.58.159.232🇳🇱 SHARKTECH-145.58.159.0/24 | ||||||
| PTR | customer.sharktech.net | ||||||
| A | 45.58.159.233🇳🇱 SHARKTECH-145.58.159.0/24 | ||||||
| PTR | customer.sharktech.net | ||||||
| A | 208.98.36.41🇺🇸 SHARKTECH-1208.98.36.0/24 | ||||||
| NS | ns3.site4now.net | ||||||
| A | 45.58.159.230🇳🇱 SHARKTECH-145.58.159.0/24 | ||||||
| PTR | customer.sharktech.net | ||||||
| A | 45.58.159.231🇳🇱 SHARKTECH-145.58.159.0/24 | ||||||
| PTR | customer.sharktech.net | ||||||
| A | 208.98.36.42🇺🇸 SHARKTECH-1208.98.36.0/24 | ||||||
| MX | igw10.site4now.net ⭐ | ||||||
| A | 208.98.34.60🇺🇸 SHARKTECH-1208.98.34.0/24 | ||||||
| PTR | mail5010.site4now.net | ||||||
| TXT | v=spf1 a mx include:_spf.site4now.net ?all | ||||||
| SOA | ns1.site4now.nethostmaster@smarterasp.net 2026-02-03 #2 | ||||||
ac
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.ac ⭐ | ||||||
| NS | a2.nic.ac | ||||||
| NS | b0.nic.ac | ||||||
| NS | c0.nic.ac | ||||||
| SOA | a0.nic.achostmaster@donuts.email serial=1784536121 | ||||||
Subdomains
www.usr.ac |
Same first word
Similar names
DNS History
12 records (5 active, 7 former)
○NSns1.101domain.com2015-07-12 → 2015-07-12 · 3 obs
○ 2015-11-13 14:32:26
○ 2026-07-20 08:44:00
●NSns1.site4now.net2019-08-25 → 2026-07-20 · 3 obs
● 2019-08-25 11:49:28
● 2026-07-20 08:44:00
○NSns2.101domain.com2015-07-12 → 2015-07-12 · 3 obs
○ 2015-11-13 14:32:26
○ 2026-07-20 08:44:00
●NSns2.site4now.net2019-08-25 → 2026-07-20 · 3 obs
● 2019-08-25 11:49:28
● 2026-07-20 08:44:00
●NSns3.site4now.net2019-08-25 → 2026-07-20 · 3 obs
● 2019-08-25 11:49:28
● 2026-07-20 08:44:00
○NSns5.101domain.com2015-07-12 → 2015-07-12 · 3 obs
○ 2015-11-13 14:32:26
○ 2026-07-20 08:44:00
●MXigw10.site4now.net2020-10-29 → 2026-07-20 · 3 obs
● 2020-10-29 13:47:38
● 2026-07-20 08:44:00
○MXigw5002.site4now.net2019-08-25 → 2019-08-25 · 4 obs
● 2019-08-25 11:49:28
○ 2020-10-29 13:47:38
○ 2026-07-20 08:44:00
○MXmail.rwgusa.net2015-07-12 → 2015-07-12 · 3 obs
○ 2015-11-13 14:32:26
○ 2026-07-20 08:44:00
○A45.58.143.32019-08-25 → 2020-10-29 · 5 obs
● 2019-08-25 11:49:28
● 2020-10-29 13:47:38
○ 2026-03-09 21:37:34
○ 2026-07-20 08:44:00
●A45.58.159.412026-03-09 → 2026-07-20 · 3 obs
● 2026-03-09 21:37:34
● 2026-07-20 08:44:00
○A69.58.188.492015-07-12 → 2015-07-12 · 3 obs
○ 2015-11-13 14:32:26
○ 2026-07-20 08:44:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ac | a0.nic.ac, a2.nic.ac, b0.nic.ac, c0.nic.ac | 8 records |
| usr.ac | ns2.site4now.net, ns1.site4now.net, ns3.site4now.net | - |
✅ Authoritative Response
Server:45.58.159.233
NS records: ns2.site4now.net, ns1.site4now.net, ns3.site4now.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for usr.ac (unsigned zone)
⏱️ Timing
Total: 867ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.58.159.41 |
| NS | 3 | ns1.site4now.net, ns2.site4now.net... |
| MX | 1 | igw10.site4now.net (pri: 10) |
| TXT | 1 | v=spf1 a mx include:_spf.site4now.net ?a |
| SOA | 1 | ns1.site4now.net hostmaster.smarterasp.n |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a0.nic.ac, a2.nic.ac, b0.nic.ac...)
Analysis
Hierarchy
www.usr.ac is delegated beneath usr.ac.
IP Addresses
usr.ac directs to one IP number, which is 45.58.159.41.
Among the host names that share IP numbers with usr.ac are mutuomobile.com, kishuron.com, classgist.com and two others.
Name Servers
The authoritative name servers for usr.ac are ns1.site4now.net, ns2.site4now.net and ns3.site4now.net — three in total.
There is at least partial name server overlap between usr.ac and other domains — svpcet.org, approvedenvironment.com, aguapotable.org and two more among them.
ns1.site4now.net directs to 70.39.73.45, 204.188.197.84 and 204.188.197.246. ns2.site4now.net directs to 45.58.159.232, 45.58.159.233 and 208.98.36.41. ns3.site4now.net directs to 45.58.159.230, 45.58.159.231 and 208.98.36.42. All three hostnames point to three IP numbers each.
Mail Servers
usr.ac routes its mail through a single mail server, igw10.site4now.net.
usr.ac has the same mail server arrangement as a number of other domains, for example americanexport.co.cr, mandarranade.com, qazu.com and two more.
At least some of usr.ac's mail servers are shared with other domains, among them hyperwrite.com, metrosoftng.com and pyasainstrumentacion.com.
igw10.site4now.net directs to just one IP number, 208.98.34.60.