sysu.co - robtex.com
sysu.co
co
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.registrydns.co | ||||||
| NS | b.registrydns.co | ||||||
| NS | c.registrydns.co | ||||||
| NS | d.registrydns.co | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1759709196 | ||||||
Same first word
sysu.edu.pl |
sysu.xyz |
sysu.edu.cn |
sysu.de |
sysu.com |
sysu.ru |
sysu.info |
sysu.com.cn |
sysu.org |
sysu.wang |
sysu.ca |
sysu.io |
sysu.co |
sysu.nl |
sysu.co.kr |
sysu.net |
sysu.org.cn |
Similar names
DNS History
18 records (8 active, 10 former)
●NSdns1.registrar-servers.com2026-07-05 → 2026-07-18 · 3 obs
● 2026-07-05 19:41:16
● 2026-07-18 16:52:02
●NSdns2.registrar-servers.com2026-07-05 → 2026-07-18 · 3 obs
● 2026-07-05 19:41:16
● 2026-07-18 16:52:02
○NSns07.domaincontrol.com2016-07-15 → 2016-07-15 · 3 obs
○ 2017-04-11 00:17:08
○ 2026-07-18 16:52:02
○NSns08.domaincontrol.com2016-07-15 → 2016-07-15 · 3 obs
○ 2017-04-11 00:17:08
○ 2026-07-18 16:52:02
●MXeforward1.registrar-servers.com2026-07-05 → 2026-07-18 · 3 obs
● 2026-07-05 19:41:16
● 2026-07-18 16:52:02
●MXeforward2.registrar-servers.com2026-07-05 → 2026-07-18 · 3 obs
● 2026-07-05 19:41:16
● 2026-07-18 16:52:02
●MXeforward3.registrar-servers.com2026-07-05 → 2026-07-18 · 3 obs
● 2026-07-05 19:41:16
● 2026-07-18 16:52:02
●MXeforward4.registrar-servers.com2026-07-05 → 2026-07-18 · 3 obs
● 2026-07-05 19:41:16
● 2026-07-18 16:52:02
●MXeforward5.registrar-servers.com2026-07-05 → 2026-07-18 · 3 obs
● 2026-07-05 19:41:16
● 2026-07-18 16:52:02
○MXmailstore1.secureserver.net2016-07-15 → 2016-07-15 · 3 obs
○ 2017-04-11 00:17:08
○ 2026-07-18 16:52:02
○MXsmtp.secureserver.net2016-07-15 → 2016-07-15 · 3 obs
○ 2017-04-11 00:17:08
○ 2026-07-18 16:52:02
○A184.168.221.522016-07-15 → 2016-07-15 · 3 obs
○ 2017-04-11 00:17:08
○ 2026-07-18 16:52:02
●A192.64.119.1512026-07-05 → 2026-07-18 · 3 obs
● 2026-07-05 19:41:16
● 2026-07-18 16:52:02
○A34.192.137.1152017-04-11 → 2017-04-11 · 4 obs
● 2017-04-11 00:17:08
○ 2026-07-05 19:41:16
○ 2026-07-18 16:52:02
○A52.23.96.2192017-04-11 → 2017-04-11 · 4 obs
● 2017-04-11 00:17:08
○ 2026-07-05 19:41:16
○ 2026-07-18 16:52:02
○A54.236.89.862017-04-11 → 2017-04-11 · 4 obs
● 2017-04-11 00:17:08
○ 2026-07-05 19:41:16
○ 2026-07-18 16:52:02
○CNAMEpr-co-suspensions.go.co2017-04-11 → 2017-04-11 · 3 obs
○ 2026-07-05 19:41:16
○ 2026-07-18 16:52:02
○CNAMEreg-pr-web-suspensionpages-go-co-1680484254.us-east-1.elb.amazonaws.com2017-04-11 → 2017-04-11 · 3 obs
○ 2026-07-05 19:41:16
○ 2026-07-18 16:52:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | a.registrydns.co, d.registrydns.co, c.registrydns.co, b.registrydns.co | - |
| sysu.co | dns1.registrar-servers.com, dns2.registrar-servers.com | - |
✅ Authoritative Response
Server:156.154.133.200
NS records: dns1.registrar-servers.com, dns2.registrar-servers.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysu.co (unsigned zone)
⏱️ Timing
Total: 514ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 192.64.119.151 |
| NS | 2 | dns1.registrar-servers.com, dns2.registrar-servers.com |
| MX | 5 | eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10... |
| TXT | 1 | v=spf1 include:spf.efwd.registrar-server |
| SOA | 1 | dns1.registrar-servers.com hostmaster.re |
Analysis
IP Addresses
sysu.co has exactly one IP address — 192.64.119.151.
cruelty-cutter.com, carolinasteelstructures.com, ecogreenheating.co.uk plus two other host names have IP numbers in common with sysu.co.
Name Servers
sysu.co uses two name servers for its delegation: dns1.registrar-servers.com and dns2.registrar-servers.com.
The name server configuration of sysu.co is shared with other domains, for instance cloudmods.shop, vacson.com, theroadcast.com and two others.
At least some of sysu.co's name servers are shared with other domains, for example flipnode.com and wisestreet.net.
It is common for these name servers to be used in conjunction with the name servers dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.
The two host names dns1.registrar-servers.com and dns2.registrar-servers.com each have a pair of IP addresses: dns1.registrar-servers.com has 156.154.132.200 and 2610:a1:1024::200, and dns2.registrar-servers.com has 156.154.133.200 and 2610:a1:1025::200.
Mail Servers
Five mail servers handle sysu.co: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.
At least some of the mail servers used by sysu.co are shared with other domains: (0x787878)nine.com, 556bb.com, jacoban.com and two others among them.
These mail servers often appear in conjunction with the mail servers eforward4.registrar-servers.com, eforward5.registrar-servers.com, eforward6.registrar-servers.com and eforward7.registrar-servers.com.
Host names resolving to a single IP address:
eforward1.registrar-servers.com has the IP address 162.255.118.51.
eforward2.registrar-servers.com has the IP address 162.255.118.52.
eforward3.registrar-servers.com has the IP address 162.255.118.51.
eforward4.registrar-servers.com has the IP address 162.255.118.52.
eforward5.registrar-servers.com has the IP address 162.255.118.51.
Three host names point to 162.255.118.51: eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com.
Both eforward2.registrar-servers.com and eforward4.registrar-servers.com resolve to 162.255.118.52 IP addresses each.