sysfire.com.br - robtex.com
sysfire.com.br
| DNSSEC | ⚠️ Not signed | ||||||
| A | 147.135.3.70🇺🇸 OVH147.135.0.0/17 Hosting route | ||||||
| PTR | ip70.ip-147-135-3.us | ||||||
| NS | ns1.rstudys.com.br ⭐ | ||||||
| A | 158.69.83.77🇨🇦 OVH158.69.0.0/16 Hosting route | ||||||
| PTR | ns1.hospedam.com | ||||||
| NS | ns2.rstudys.com.br | ||||||
| A | 91.134.157.91🇫🇷 OVH91.134.0.0/16 | ||||||
| PTR | ns2.hospedam.com | ||||||
| NS | ns3.rstudys.com.br ⚠️ Not in parent delegation | ||||||
| A | 52.67.59.18🇧🇷 Amazon52.67.0.0/16 EC2 GRU prefix | ||||||
| PTR | ns3.hospedam.com | ||||||
| NS | ns4.rstudys.com.br ⚠️ Not in parent delegation | ||||||
| A | 52.24.202.85🇺🇸 Amazon52.24.0.0/14 EC2 PDX prefix | ||||||
| PTR | ns4.hospedam.com | ||||||
| MX | sysfire.com.br ⭐ | ||||||
| A | 147.135.3.70🇺🇸 OVH147.135.0.0/17 Hosting route | ||||||
| PTR | ip70.ip-147-135-3.us | ||||||
| TXT | v=spf1 +a +mx +ip4:15.204.220.37 include:relay.mailchannels.net +ip4:147.135.... | ||||||
| SOA | ns1.rstudys.com.brmanorubens@gmail.com 2026-02-01 #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=2026087258 | ||||||
rank #4104 in the tld
WOT: SAFE (69/100)
MX for
sysfire.com.br |
Same first word
Similar names
reifsys.de |
rifesys.de |
firesys.de |
firesys.pl |
firesys.net |
firesys.com.br |
erfisys.fr |
erfisys.org |
reifsys.com |
sysrife.com |
freyssi.net |
reifsys.email |
erfisys.info |
DNS History
13 records (6 active, 7 former)
○NSns1.rstd.com.br2015-07-13 → 2017-02-12 · 4 obs
● 2017-02-12 08:45:38
○ 2019-03-31 22:58:50
○ 2026-03-28 10:53:44
○NSns1.rstudys.com2019-03-31 → 2019-03-31 · 4 obs
● 2019-03-31 22:58:50
○ 2026-03-27 10:18:12
○ 2026-03-28 10:53:44
●NSns1.rstudys.com.br2026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 10:18:12
● 2026-03-28 10:53:44
○NSns2.rstd.com.br2015-07-13 → 2017-02-12 · 4 obs
● 2017-02-12 08:45:38
○ 2019-03-31 22:58:50
○ 2026-03-28 10:53:44
○NSns2.rstudys.com2019-03-31 → 2019-03-31 · 4 obs
● 2019-03-31 22:58:50
○ 2026-03-27 10:18:12
○ 2026-03-28 10:53:44
●NSns2.rstudys.com.br2026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 10:18:12
● 2026-03-28 10:53:44
●NSns3.rstudys.com.br2026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 10:18:12
● 2026-03-28 10:53:44
●NSns4.rstudys.com.br2026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 10:18:12
● 2026-03-28 10:53:44
●MXsysfire.com.br2015-07-13 → 2026-03-28 · 2 obs
● 2026-03-28 10:53:44
○A138.128.185.1982019-03-31 → 2019-03-31 · 4 obs
● 2019-03-31 22:58:50
○ 2026-03-27 10:18:12
○ 2026-03-28 10:53:44
●A147.135.3.702026-03-27 → 2026-03-28 · 3 obs
● 2026-03-27 10:18:12
● 2026-03-28 10:53:44
○A198.136.59.582017-02-12 → 2017-02-12 · 4 obs
● 2017-02-12 08:45:38
○ 2019-03-31 22:58:50
○ 2026-03-28 10:53:44
○A69.162.114.1382015-07-13 → 2016-06-26 · 4 obs
● 2016-06-26 12:22:42
○ 2017-02-12 08:45:38
○ 2026-03-28 10:53:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| br | a.dns.br, b.dns.br, c.dns.br, d.dns.br... | - |
| sysfire.com.br | ns1.rstudys.com.br, ns2.rstudys.com.br | 2 records |
✅ Authoritative Response
Server:158.69.83.77
NS records: ns1.rstudys.com.br, ns2.rstudys.com.br
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysfire.com.br (unsigned zone)
⏱️ Timing
Total: 567ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 147.135.3.70 |
| NS | 4 | ns3.rstudys.com.br, ns2.rstudys.com.br... |
| MX | 1 | sysfire.com.br (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:15.204.220.37 include |
| SOA | 1 | ns1.rstudys.com.br manorubens.gmail.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.rstudys.com.br, ns2.rstudys.com.br)
Analysis
Mail Server Role
The mail server for sysfire.com.br is sysfire.com.br.
IP Addresses
sysfire.com.br points to a single IP address: 147.135.3.70.
Other host names such as pixelgo.com.br, emporioconstruir.com.br, iptvroku.com.br, gatozilla.com and rstudys.com.br share IPs with sysfire.com.br.
Name Servers
sysfire.com.br is delegated to four name servers: ns1.rstudys.com.br, ns2.rstudys.com.br, ns3.rstudys.com.br and ns4.rstudys.com.br.
sysfire.com.br at least partially shares name servers with other domains, for example rstudys.com.br, ns1.rstudys.com.br, ns2.rstudys.com.br, ns4.rstudys.com.br and ns3.rstudys.com.br.
these name servers commonly pair with ns1.hospedam.com, ns2.hospedam.com, ns3.hospedam.com and ns4.hospedam.com.
Host names with one IP number:
ns1.rstudys.com.br points to: 158.69.83.77
ns2.rstudys.com.br points to: 91.134.157.91
ns3.rstudys.com.br points to: 52.67.59.18
ns4.rstudys.com.br points to: 52.24.202.85
Mail Servers
One mail server handles sysfire.com.br; that server is sysfire.com.br.
sysfire.com.br points to a single IP number: 147.135.3.70.