checkingwork.io - dns.ninja

`checkingwork.io`

DNSSEC	⚠️ Not signed
A	216.198.79.1^{🇺🇸 Amazon216.198.79.0/24 EC2 Prefix}
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
MX	`feedback-smtp.eu-west-1.amazonses.com` ⭐
		A	18.200.42.95^{🇮🇪 Amazon18.200.0.0/16 EC2 DUB prefix}
			PTR	`ec2-18-200-42-95.eu-west-1.compute.amazonaws.com`
		A	34.243.41.226^{🇮🇪 Amazon34.240.0.0/13 EC2 DUB prefix}
			PTR	`ec2-34-243-41-226.eu-west-1.compute.amazonaws.com`
		A	34.250.195.198^{🇮🇪 Amazon34.248.0.0/13 EC2 DUB prefix}
			PTR	`ec2-34-250-195-198.eu-west-1.compute.amazonaws.com`
TXT	`v=spf1 include:amazonses.com ~all`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1773746755

	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=1783759747

🔒 HSTS Preload (+subdomains)

checkingwork.io

checkworking.com

4 records (4 active, 0 former)

●NSdns1.registrar-servers.com2026-04-09 → 2026-07-11 · 2 obs

● 2026-04-09 19:00:46
● 2026-07-11 09:09:18

●NSdns2.registrar-servers.com2026-04-09 → 2026-07-11 · 2 obs

● 2026-04-09 19:00:46
● 2026-07-11 09:09:18

●MXfeedback-smtp.eu-west-1.amazonses.com2026-04-09 → 2026-07-11 · 2 obs

● 2026-04-09 19:00:46
● 2026-07-11 09:09:18

●A216.198.79.12026-04-09 → 2026-07-11 · 2 obs

● 2026-04-09 19:00:46
● 2026-07-11 09:09:18

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
checkingwork.io	dns1.registrar-servers.com, dns2.registrar-servers.com	-

Server:156.154.133.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

⚠️ Insecure (no DNSSEC)

No DS record for checkingwork.io (unsigned zone)

Total: 390ms | Queries: -

Type	Count	Sample Data
A	1	`216.198.79.1`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
MX	1	`feedback-smtp.eu-west-1.amazonses.com (p`
TXT	1	`v=spf1 include:amazonses.com ~all`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

checkingwork.io resolves to just one IP address, 216.198.79.1.

Two other host names, along with upload.sp.edu.vn, hexbit.com and durgagupta.com.np, also share IP numbers with checkingwork.io.

DNS delegation for checkingwork.io points to two name servers: dns1.registrar-servers.com and dns2.registrar-servers.com.

checkingwork.io shares its NS records with other domains, for example pectines.com, reallyuniquecrappie.guru, initialcache.com and two others.

Some name servers delegated to checkingwork.io are also used by other domains, notably mafair.org and parkingwhizz.com.

The name servers dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com are often found in combination with these name servers.

The sole mail server for checkingwork.io is feedback-smtp.eu-west-1.amazonses.com.

Among the domains sharing a mail server setup with checkingwork.io are mail.digibyte.it, mail.griffincoal.com.au, mail.mikeluck.co.uk and two others.

There is at least a partial MX overlap between checkingwork.io and other domains, including zamiec.pl, mygovernance.it, preplanning.ie and two others.

These mail servers tend to appear in combination with mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 3 others.