nb.rs - robtex.com
nb.rs
| DNSSEC | ⚠️ Not signed | ||||||
| A | 147.91.246.202🇷🇸 UB-AS147.91.128.0/17 Academic Network of Serbia (AMRES) | ||||||
| PTR | nb.rs | ||||||
| NS | ns1e.nb.rs ⭐ | ||||||
| A | 147.91.246.91🇷🇸 UB-AS147.91.128.0/17 Academic Network of Serbia (AMRES) | ||||||
| NS | ns.rcub.bg.ac.rs | ||||||
| A | 2001:4170:0:1::5🇷🇸 UB-AS2001:4170::/32 Academic Network of Serbia (AMRES) | ||||||
| PTR | ns.rcub.bg.ac.rs | ||||||
| A | 147.91.1.5🇷🇸 UB-AS147.91.0.0/17 Academic Network of Serbia (AMRES) | ||||||
| PTR | ns.rcub.bg.ac.rs | ||||||
| NS | ns2e.nb.rs | ||||||
| A | 147.91.246.96🇷🇸 UB-AS147.91.128.0/17 Academic Network of Serbia (AMRES) | ||||||
| PTR | ns2e.narodnabiblioteka.rs | ||||||
| MX | mail.nb.rs ⭐ | ||||||
| A | 147.91.246.95🇷🇸 UB-AS147.91.128.0/17 Academic Network of Serbia (AMRES) | ||||||
| TXT | v=spf1 mx ip4:147.91.246.95 ip4:147.91.246.30 -all | ||||||
| SOA | ns1e.nb.rshostmaster@nb.rs 2026-10-14 #1 | ||||||
rs
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.nic.rs ⭐ | ||||||
| NS | b.nic.rs | ||||||
| NS | c.nic.rs | ||||||
| NS | f.nic.rs | ||||||
| NS | h.nic.rs | ||||||
| NS | l.nic.rs | ||||||
| TXT | rs zone update: 2026-10-16 16:30:04 +02:00 (EPOCH 1792161004) | ||||||
| SOA | a.nic.rshostmaster@nic.rs 2026-10-16 #35 | ||||||
rank #21 in the tld
WOT: SAFE (73/100)
📈 Tranco rank: #60,876
PTR for
Subdomains
vhost.nb.rs |
obavezni.nb.rs |
e-ucionica.nb.rs |
www.nb.rs |
ns2e.nb.rs |
velikirat.nb.rs |
mail.nb.rs |
ftp.nb.rs |
nainfo.nb.rs |
bkp.nb.rs |
ns1e.nb.rs |
registar.nb.rs |
digitalna.nb.rs |
nainfo-proxy.nb.rs |
digital.nb.rs |
kobson.nb.rs |
doiserbia.nb.rs |
Same first word
Similar names
Previous names
Next names
DNS History
6 records (5 active, 1 former)
●NSns.rcub.bg.ac.rs2015-08-02 → 2026-10-16 · 6 obs
● 2016-10-10 16:16:10
○ 2016-11-17 02:13:30
○ 2020-12-22 03:33:54
● 2026-02-15 12:40:32
● 2026-10-16 14:44:06
●NSns1e.nb.rs2015-08-02 → 2026-10-16 · 2 obs
● 2026-10-16 14:44:06
●NSns2e.nb.rs2015-08-02 → 2026-10-16 · 2 obs
● 2026-10-16 14:44:06
●MXmail.nb.rs2015-08-02 → 2026-10-16 · 2 obs
● 2026-10-16 14:44:06
○A147.91.246.22015-08-02 → 2020-12-22 · 4 obs
● 2020-12-22 03:33:54
○ 2026-02-15 12:40:32
○ 2026-10-16 14:44:06
●A147.91.246.2022026-02-15 → 2026-10-16 · 3 obs
● 2026-02-15 12:40:32
● 2026-10-16 14:44:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| rs | a.nic.rs, b.nic.rs, c.nic.rs, f.nic.rs... | 12 records |
| nb.rs | ns.rcub.bg.ac.rs, ns2e.nb.rs, ns1e.nb.rs | 3 records |
✅ Authoritative Response
Server:147.91.246.91
NS records: ns.rcub.bg.ac.rs, ns2e.nb.rs, ns1e.nb.rs
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at rs: Error: DNS query timeout: 91.199.17.59 for DNSKEY rs
⏱️ Timing
Total: 3742ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 147.91.246.202 |
| NS | 3 | ns1e.nb.rs, ns2e.nb.rs... |
| MX | 1 | mail.nb.rs (pri: 10) |
| TXT | 1 | v=spf1 mx ip4:147.91.246.95 ip4:147.91.2 |
| SOA | 1 | ns1e.nb.rs hostmaster.nb.rs |
📌 Glue Records Collected
Total: 15
In-bailiwick: 14 (a.nic.rs, a.nic.rs, b.nic.rs...)
Out-of-bailiwick: 1 (ns.rcub.bg.ac.rs)
Analysis
Hierarchy
The host names vhost.nb.rs, obavezni.nb.rs, e-ucionica.nb.rs, www.nb.rs and ns2e.nb.rs — among a few others — fall under the parent domain nb.rs.
IP Addresses
nb.rs resolves to just one IP address, 147.91.246.202.
Other host names share IP numbers with nb.rs; www.nb.rs is one such example.
Name Servers
Three name servers are authoritative for nb.rs: ns1e.nb.rs, ns2e.nb.rs and ns.rcub.bg.ac.rs.
At least some of nb.rs's name servers are shared with other domains, for example fpu.bg.ac.rs, 125.91.147.in-addr.arpa, 23.91.147.in-addr.arpa and two more.
These name servers tend to co-occur with gaea.rcub.bg.ac.rs, ns.etf.bg.ac.rs, ns1.uns.ac.rs and 7 other name servers in the same DNS delegations.
Host names that have two IP addresses:
ns.rcub.bg.ac.rs maps to two IP addresses — 147.91.1.5 and 2001:4170:0:1::5.
Host names that point to one IP address:
ns1e.nb.rs points to the IP address 147.91.246.91.
ns2e.nb.rs points to the IP address 147.91.246.96.
Mail Servers
The sole mail server for nb.rs is mail.nb.rs.
Mail server setup for nb.rs matches that of other domains, among them vbs.rs.
There is one IP number for mail.nb.rs: 147.91.246.95.