sysu.io - robtex.com

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`sysu.io`

DNSSEC	⚠️ Not signed
NS	`ns-328.awsdns-41.com` ⭐
		A	2600:9000:5301:4800::1^{🇺🇸 Amazon}
			PTR	`ns-328.awsdns-41.com`
		A	205.251.193.72^{🇺🇸 Amazon}
			PTR	`ns-328.awsdns-41.com`
NS	`ns-1051.awsdns-03.org`
		A	2600:9000:5304:1b00::1^{🇺🇸 Amazon}
			PTR	`ns-1051.awsdns-03.org`
		A	205.251.196.27^{🇺🇸 Amazon}
			PTR	`ns-1051.awsdns-03.org`
NS	`ns-1745.awsdns-26.co.uk`
		A	2600:9000:5306:d100::1^{🇺🇸 Amazon}
			PTR	`ns-1745.awsdns-26.co.uk`
		A	205.251.198.209^{🇺🇸 Amazon}
			PTR	`ns-1745.awsdns-26.co.uk`
NS	`ns-921.awsdns-51.net`
		A	2600:9000:5303:9900::1^{🇺🇸 Amazon}
			PTR	`ns-921.awsdns-51.net`
		A	205.251.195.153^{🇺🇸 Amazon}
			PTR	`ns-921.awsdns-51.net`
SOA	`ns-328.awsdns-41.com`awsdns-hostmaster@amazon.com serial=1

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐ 🔒
	NS	`a2.nic.io` 🔒
	NS	`b0.nic.io` 🔒
	NS	`c0.nic.io` 🔒
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1770908509

Up

sl.sysu.io

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🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
sysu.io	ns-1051.awsdns-03.org, ns-328.awsdns-41.com, ns-1745.awsdns-26.co.uk, ns-921.awsdns-51.net	-

✅ Authoritative Response

Server: 205.251.196.27

NS records: ns-1051.awsdns-03.org, ns-328.awsdns-41.com, ns-1745.awsdns-26.co.uk, ns-921.awsdns-51.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysu.io (unsigned zone)

⏱️ Timing

Total: 672ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1051.awsdns-03.org, ns-1745.awsdns-26.co.uk...`
SOA	1	`ns-328.awsdns-41.com awsdns-hostmaster.a`

AI analysis

sysu.io is the parent of sl.sysu.io.

sysu.io is delegated to four name servers: ns-328.awsdns-41.com, ns-921.awsdns-51.net, ns-1051.awsdns-03.org and ns-1745.awsdns-26.co.uk.

sysu.io shares some name servers with other domains, for example frictionlabs.org, dlltfwnf0o8q8.cloudfront.net, bamdad.info, avantassessments.com and amasuite.com.

These name servers are commonly paired with ns-892.awsdns-47.net, ns-1435.awsdns-51.org, ns-1560.awsdns-03.co.uk, ns-1539.awsdns-00.co.uk, ns-905.awsdns-49.net, ns-1238.awsdns-26.org and ns-1221.awsdns-24.org.

Host names with two IP numbers

Two IPs per host:

ns-328.awsdns-41.com points to 2600:9000:5301:4800::1 and 205.251.193.72

ns-921.awsdns-51.net points to 2600:9000:5303:9900::1 and 205.251.195.153

ns-1051.awsdns-03.org points to 2600:9000:5304:1b00::1 and 205.251.196.27

ns-1745.awsdns-26.co.uk points to 2600:9000:5306:d100::1 and 205.251.198.209