`sheffield-systems.com`

DNSSEC	⚠️ Not signed
A	213.171.195.105^{🇬🇧 IONOS-AS213.171.192.0/19 Fasthosts Internet Ltd}
		PTR	`mail.domain-holding.co.uk`
NS	`ns1.livedns.co.uk` ⭐
		A	2001:8d8:fe:53:fa::1^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1.slndns.co.uk`
		A	217.160.81.244^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1.livedns.co.uk`
NS	`ns2.livedns.co.uk`
		A	2001:8d8:fe:53:fa::2^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns2.slndns.co.uk`
		A	217.160.82.244^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns2.livedns.co.uk`
NS	`ns3.livedns.co.uk`
		A	2607:f1c0:fe:53:185:132:35:244^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns3.livedns.co.uk`
		A	185.132.35.244^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns3.livedns.co.uk`
MX	`mailserver.sheffield-systems.com` ⭐
		A	213.171.216.40^{🇬🇧 IONOS-AS213.171.192.0/19 Fasthosts Internet Ltd}
TXT	`v=spf1 mx a include:_spf.livemail.co.uk ~all`
TXT	`MS=ms69113129`
SOA	`ns1.livedns.co.uk`admin@sheffield-systems.com serial=1548170412

`com`

	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=1776205752

Subdomains

mailserver.sheffield-systems.com

Same first word

sheffield-systems.com

sheffield-systems.co.uk

DNS History

6 records (5 active, 1 former)

●NSns1.livedns.co.uk2016-12-18 → 2026-04-14 · 2 obs

● 2016-12-18 22:33:52
● 2026-04-14 22:55:10

●NSns2.livedns.co.uk2016-12-18 → 2026-04-14 · 2 obs

● 2016-12-18 22:33:52
● 2026-04-14 22:55:10

●NSns3.livedns.co.uk2016-12-18 → 2026-04-14 · 2 obs

● 2016-12-18 22:33:52
● 2026-04-14 22:55:10

●MXmailserver.sheffield-systems.com2016-12-18 → 2026-04-14 · 2 obs

● 2016-12-18 22:33:52
● 2026-04-14 22:55:10

●A213.171.195.1052026-03-24 → 2026-04-14 · 3 obs

○ 2017-09-22 23:26:46
● 2026-03-24 11:53:26
● 2026-04-14 22:55:10

○A88.208.252.2292016-12-18 → 2017-09-22 · 4 obs

● 2016-12-18 22:33:52
● 2017-09-22 23:26:46
○ 2026-03-24 11:53:26
○ 2026-04-14 22:55:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...	-
sheffield-systems.com	ns1.livedns.co.uk, ns2.livedns.co.uk, ns3.livedns.co.uk	-

✅ Authoritative Response

Server:217.160.81.244

NS records: ns1.livedns.co.uk, ns2.livedns.co.uk, ns3.livedns.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sheffield-systems.com (unsigned zone)

⏱️ Timing

Total: 482ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`213.171.195.105`
NS	3	`ns2.livedns.co.uk, ns1.livedns.co.uk...`
MX	1	`mailserver.sheffield-systems.com (pri: 1`
TXT	2	`MS=ms69113129, v=spf1 mx a include:_spf.livemail.co.uk`
SOA	1	`ns1.livedns.co.uk admin.sheffield-system`

Analysis

Hierarchy

sheffield-systems.com is the parent of mailserver.sheffield-systems.com.

IP Addresses

sheffield-systems.com resolves to a single IP address: 213.171.195.105.

Other host names including pinaclsmartplaces.com, fourapps.com, biosgame.com, technologymonkey.co.uk and development1st.com share IP numbers with sheffield-systems.com.

Name Servers

sheffield-systems.com is delegated to three name servers: ns1.livedns.co.uk, ns2.livedns.co.uk and ns3.livedns.co.uk.

sheffield-systems.com at least partially shares name servers with other domains, including sanfrancisco58.com, stevenage-dolphins.org, ramora.co.uk, frunk.co.uk and conferencesnewforest.com.

These name servers are commonly used with ns1.fast-hosts.org and ns2.fast-hosts.org.

Host names with two IP numbers:

ns1.livedns.co.uk points to: 2001:8d8:fe:53:fa::1 and 217.160.81.244

ns2.livedns.co.uk points to: 2001:8d8:fe:53:fa::2 and 217.160.82.244

ns3.livedns.co.uk points to: 2607:f1c0:fe:53:185:132:35:244 and 185.132.35.244

Mail Servers

sheffield-systems.com is handled by a single mail server, mailserver.sheffield-systems.com.

mailserver.sheffield-systems.com points to a single IP: 213.171.216.40.

sheffield-systems.com - robtex.com