`sis01.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:c858^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:15d1^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.21.209^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.200.88^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elinore.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a99^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c099^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elinore.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2099^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elinore.ns.cloudflare.com`
		A	108.162.192.153^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	172.64.32.153^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	173.245.58.153^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
NS	`sid.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sid.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sid.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sid.ns.cloudflare.com`
		A	108.162.193.143^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sid.ns.cloudflare.com`
		A	172.64.33.143^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sid.ns.cloudflare.com`
		A	173.245.59.143^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sid.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.21.209, 172.67.200.88
		IPv6	2606:4700:3030::ac43:c858, 2606:4700:3032::6815:15d1
SOA	`elinore.ns.cloudflare.com`dns@cloudflare.com serial=2398465159

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774645987

Previously MX for

sis01.net

Same first word

sis01.mobi

sis01.com

sis01.net

sis01.de

Similar names

iss01.com

sis10.com.br

ssi01.dyndns.org

10iss.org

DNS History

13 records (6 active, 7 former)

●NSelinore.ns.cloudflare.com2026-02-16 → 2026-03-27 · 3 obs

○ 2017-10-05 16:36:02
● 2026-02-16 02:40:00
● 2026-03-27 21:24:22

○NSns1.xserver.jp2017-10-05 → 2017-10-05 · 3 obs

● 2017-10-05 16:36:02
○ 2026-02-16 02:40:00
○ 2026-03-27 21:24:22

○NSns2.xserver.jp2017-10-05 → 2017-10-05 · 3 obs

● 2017-10-05 16:36:02
○ 2026-02-16 02:40:00
○ 2026-03-27 21:24:22

○NSns3.xserver.jp2017-10-05 → 2017-10-05 · 3 obs

● 2017-10-05 16:36:02
○ 2026-02-16 02:40:00
○ 2026-03-27 21:24:22

○NSns4.xserver.jp2017-10-05 → 2017-10-05 · 3 obs

● 2017-10-05 16:36:02
○ 2026-02-16 02:40:00
○ 2026-03-27 21:24:22

○NSns5.xserver.jp2017-10-05 → 2017-10-05 · 3 obs

● 2017-10-05 16:36:02
○ 2026-02-16 02:40:00
○ 2026-03-27 21:24:22

●NSsid.ns.cloudflare.com2026-02-16 → 2026-03-27 · 3 obs

○ 2017-10-05 16:36:02
● 2026-02-16 02:40:00
● 2026-03-27 21:24:22

○MXsis01.net2017-10-05 → 2026-02-16 · 4 obs

● 2017-10-05 16:36:02
● 2026-02-16 05:02:06
○ 2026-02-24 05:11:32
○ 2026-03-27 21:24:22

●A104.21.21.2092026-02-16 → 2026-03-27 · 3 obs

○ 2017-10-05 16:36:02
● 2026-02-16 02:40:00
● 2026-03-27 21:24:22

●A172.67.200.882026-02-16 → 2026-03-27 · 3 obs

○ 2017-10-05 16:36:02
● 2026-02-16 02:40:00
● 2026-03-27 21:24:22

○A202.254.234.942017-10-05 → 2017-10-05 · 3 obs

● 2017-10-05 16:36:02
○ 2026-02-16 02:40:00
○ 2026-03-27 21:24:22

●A2606:4700:3030::ac43:c8582026-02-16 → 2026-03-27 · 3 obs

○ 2017-10-05 16:36:02
● 2026-02-16 02:40:00
● 2026-03-27 21:24:22

●A2606:4700:3032::6815:15d12026-02-16 → 2026-03-27 · 3 obs

○ 2017-10-05 16:36:02
● 2026-02-16 02:40:00
● 2026-03-27 21:24:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	g.gtld-servers.net, k.gtld-servers.net, d.gtld-servers.net, a.gtld-servers.net...	-
sis01.net	sid.ns.cloudflare.com, elinore.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.153

NS records: sid.ns.cloudflare.com, elinore.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sis01.net (unsigned zone)

⏱️ Timing

Total: 419ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.200.88, 104.21.21.209`
AAAA	2	`2606:4700:3032::6815:15d1, 2606:4700:3030::ac43:c858`
NS	2	`elinore.ns.cloudflare.com, sid.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elinore.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

sis01.net points to four IP numbers: 2606:4700:3030::ac43:c858, 2606:4700:3032::6815:15d1, 104.21.21.209 and 172.67.200.88.

Other host names, for instance sme.co.uk, c5ab33795306.c5ab33795306.dckv.net, tonu.cn, legalaidsc.org and auwoon.com share IP numbers with sis01.net.

Name Servers

sis01.net is delegated to two name servers: elinore.ns.cloudflare.com and sid.ns.cloudflare.com.

sis01.net uses the same name server setup as other domains, for instance yanmudm.com, mfcrdy.com, uvw.at, apianonline.com and ayunovanti.com.

sis01.net shares name servers with other domains at least partially, for instance tbo.com.ar, xn--gteborgshalkbana-mwb.com, healthmem.com, lesamants-online.com and 55.172.255.88.in-addr.arpa.

these name servers are commonly used together with julio.ns.cloudflare.com and cody.ns.cloudflare.com.

Host names with six IP numbers: elinore.ns.cloudflare.com points to 2606:4700:50::adf5:3a99, 2803:f800:50::6ca2:c099, 2a06:98c1:50::ac40:2099, 108.162.192.153, 172.64.32.153 and 173.245.58.153; sid.ns.cloudflare.com points to 2606:4700:58::adf5:3b8f, 2803:f800:50::6ca2:c18f, 2a06:98c1:50::ac40:218f, 108.162.193.143, 172.64.33.143 and 173.245.59.143.

sis01.net - robtex.com

sis01.net

net

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`sis01.net`

`net`