sema23.com.br - robtex.com
sema23.com.br
| DNSSEC | ⚠️ Not signed | ||||||
| A | 52.54.90.187🇺🇸 Amazon52.54.0.0/15 EC2 Region prefix | ||||||
| PTR | ec2-52-54-90-187.compute-1.amazonaws.com | ||||||
| A | 54.86.226.163🇺🇸 Amazon54.86.0.0/16 EC2 IAD prefix | ||||||
| NS | ns-1130.awsdns-13.org ⭐ | ||||||
| A | 2600:9000:5304:6a00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1130.awsdns-13.org | ||||||
| A | 205.251.196.106🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1130.awsdns-13.org | ||||||
| NS | ns-1613.awsdns-09.co.uk | ||||||
| A | 2600:9000:5306:4d00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1613.awsdns-09.co.uk | ||||||
| A | 205.251.198.77🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1613.awsdns-09.co.uk | ||||||
| NS | ns-241.awsdns-30.com | ||||||
| A | 2600:9000:5300:f100::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-241.awsdns-30.com | ||||||
| A | 205.251.192.241🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-241.awsdns-30.com | ||||||
| NS | ns-797.awsdns-35.net | ||||||
| A | 2600:9000:5303:1d00::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-797.awsdns-35.net | ||||||
| A | 205.251.195.29🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-797.awsdns-35.net | ||||||
| SOA | ns-1130.awsdns-13.orgawsdns-hostmaster@amazon.com serial=1 | ||||||
com.br
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.br ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.br ⚠️ Not in parent delegation | ||||||
| NS | c.dns.br ⚠️ Not in parent delegation | ||||||
| NS | d.dns.br ⚠️ Not in parent delegation | ||||||
| NS | e.dns.br ⚠️ Not in parent delegation | ||||||
| NS | f.dns.br ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.brhostmaster@registro.br serial=2026218272 | ||||||
rank #3629 in the tld
WOT: SAFE (69/100)
Same first word
sema23.com.br |
Similar names
DNS History
15 records (6 active, 9 former)
●NSns-1130.awsdns-13.org2026-05-06 → 2026-08-06 · 3 obs
● 2026-05-06 18:06:18
● 2026-08-06 11:35:16
●NSns-1613.awsdns-09.co.uk2026-05-06 → 2026-08-06 · 3 obs
● 2026-05-06 18:06:18
● 2026-08-06 11:35:16
●NSns-241.awsdns-30.com2026-05-06 → 2026-08-06 · 3 obs
● 2026-05-06 18:06:18
● 2026-08-06 11:35:16
●NSns-797.awsdns-35.net2026-05-06 → 2026-08-06 · 3 obs
● 2026-05-06 18:06:18
● 2026-08-06 11:35:16
○NSns1.dominios.uol.com.br2015-09-02 → 2018-10-28 · 4 obs
● 2018-10-28 01:01:28
○ 2026-05-06 18:06:18
○ 2026-08-06 11:35:16
○NSns2.dominios.uol.com.br2015-09-02 → 2018-10-28 · 4 obs
● 2018-10-28 01:01:28
○ 2026-05-06 18:06:18
○ 2026-08-06 11:35:16
○NSns3.dominios.uol.com.br2015-09-02 → 2018-10-28 · 4 obs
● 2018-10-28 01:01:28
○ 2026-05-06 18:06:18
○ 2026-08-06 11:35:16
○MXmx.uhserver.com2015-09-02 → 2018-10-28 · 4 obs
● 2018-10-28 01:01:28
○ 2026-05-06 18:06:18
○ 2026-08-06 11:35:16
○A200.98.197.932015-09-02 → 2018-10-28 · 4 obs
● 2018-10-28 01:01:28
○ 2026-05-06 18:06:18
○ 2026-08-06 11:35:16
○A34.202.215.1202026-05-06 → 2026-05-06 · 4 obs
● 2026-05-06 18:06:18
○ 2026-08-02 15:52:58
○ 2026-08-06 11:35:16
○A34.233.147.162026-05-06 → 2026-05-06 · 4 obs
● 2026-05-06 18:06:18
○ 2026-08-02 15:52:58
○ 2026-08-06 11:35:16
●A52.54.90.1872026-08-06 → 2026-08-06 · 3 obs
● 2026-08-06 11:35:14
● 2026-08-06 11:35:16
○A54.237.80.1892026-08-02 → 2026-08-02 · 4 obs
● 2026-08-02 15:52:58
○ 2026-08-06 11:35:14
○ 2026-08-06 11:35:16
●A54.86.226.1632026-08-06 → 2026-08-06 · 3 obs
● 2026-08-06 11:35:14
● 2026-08-06 11:35:16
○A54.92.153.1342026-08-02 → 2026-08-02 · 4 obs
● 2026-08-02 15:52:58
○ 2026-08-06 11:35:14
○ 2026-08-06 11:35:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| br | f.dns.br, d.dns.br, b.dns.br, e.dns.br... | - |
| sema23.com.br | ns-797.awsdns-35.net, ns-1613.awsdns-09.co.uk, ns-1130.awsdns-13.org, ns-241.awsdns-30.com | - |
✅ Authoritative Response
Server:205.251.196.106
NS records: ns-797.awsdns-35.net, ns-1613.awsdns-09.co.uk, ns-1130.awsdns-13.org, ns-241.awsdns-30.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sema23.com.br (unsigned zone)
⏱️ Timing
Total: 729ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 52.54.90.187, 54.86.226.163 |
| NS | 4 | ns-1130.awsdns-13.org, ns-1613.awsdns-09.co.uk... |
| SOA | 1 | ns-1130.awsdns-13.org awsdns-hostmaster. |
Analysis
IP Addresses
sema23.com.br points to the IP addresses 52.54.90.187 and 54.86.226.163
Host names like ec2-52-54-90-187.compute-1.amazonaws.com are further examples that share IP numbers with sema23.com.br.
Name Servers
sema23.com.br has four authoritative name servers: ns-241.awsdns-30.com, ns-797.awsdns-35.net, ns-1130.awsdns-13.org and ns-1613.awsdns-09.co.uk.
There is at least partial name server overlap between sema23.com.br and other domains — strategyfails.com, saltpeak.com, lecauctions.com and two more among them.
All four hostnames — ns-241.awsdns-30.com, ns-797.awsdns-35.net, ns-1130.awsdns-13.org and ns-1613.awsdns-09.co.uk — resolve to two IP numbers apiece: ns-241.awsdns-30.com to 205.251.192.241 and 2600:9000:5300:f100::1; ns-797.awsdns-35.net to 205.251.195.29 and 2600:9000:5303:1d00::1; ns-1130.awsdns-13.org to 205.251.196.106 and 2600:9000:5304:6a00::1; ns-1613.awsdns-09.co.uk to 205.251.198.77 and 2600:9000:5306:4d00::1.