🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`stringsoptional.com`

DNSSEC	⚠️ Not signed
NS	`cosmin.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c2d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cosmin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c32d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cosmin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:232d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cosmin.ns.cloudflare.com`
		A	108.162.195.45^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cosmin.ns.cloudflare.com`
		A	162.159.44.45^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cosmin.ns.cloudflare.com`
		A	172.64.35.45^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cosmin.ns.cloudflare.com`
NS	`sofia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3adf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sofia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0df^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sofia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20df^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sofia.ns.cloudflare.com`
		A	108.162.192.223^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sofia.ns.cloudflare.com`
		A	172.64.32.223^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sofia.ns.cloudflare.com`
		A	173.245.58.223^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sofia.ns.cloudflare.com`
SOA	`cosmin.ns.cloudflare.com`dns@cloudflare.com serial=2413944503

`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=1791453214

Previously MX for

stringsoptional.com

Same first word

stringsoptional.com

Previous names

Next names

DNS History

6 records (2 active, 4 former)

●NScosmin.ns.cloudflare.com2026-09-05 → 2026-10-08 · 3 obs

○ 2019-04-15 08:53:06
● 2026-09-05 02:47:16
● 2026-10-08 10:09:50

○NSns161.websitewelcome.com2015-05-21 → 2016-12-03 · 4 obs

● 2015-05-21 00:09:42
● 2016-12-03 12:31:20
○ 2019-04-15 08:53:06
○ 2026-10-08 10:09:50

○NSns162.websitewelcome.com2015-05-21 → 2016-12-03 · 4 obs

● 2015-05-21 00:09:42
● 2016-12-03 12:31:20
○ 2019-04-15 08:53:06
○ 2026-10-08 10:09:50

●NSsofia.ns.cloudflare.com2026-09-05 → 2026-10-08 · 3 obs

○ 2019-04-15 08:53:06
● 2026-09-05 02:47:16
● 2026-10-08 10:09:50

○MXstringsoptional.com2015-05-21 → 2016-12-03 · 4 obs

● 2015-05-21 00:09:42
● 2016-12-03 12:31:20
○ 2019-04-15 08:53:06
○ 2026-10-08 10:09:50

○A192.185.73.2472015-05-21 → 2016-12-03 · 4 obs

● 2015-05-21 00:09:42
● 2016-12-03 12:31:20
○ 2019-04-15 08:53:06
○ 2026-10-08 10:09:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net...	-
stringsoptional.com	sofia.ns.cloudflare.com, cosmin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.45

NS records: sofia.ns.cloudflare.com, cosmin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stringsoptional.com (unsigned zone)

⏱️ Timing

Total: 162ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`cosmin.ns.cloudflare.com, sofia.ns.cloudflare.com`
SOA	1	`cosmin.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (sofia.ns.cloudflare.com, sofia.ns.cloudflare.com, sofia.ns.cloudflare.com...)

Analysis

Name Servers

DNS delegation for stringsoptional.com points to two name servers: cosmin.ns.cloudflare.com and sofia.ns.cloudflare.com.

stringsoptional.com has the same name server delegation as a number of other domains, such as spidernoor.com, maahanmuuttoluvut.fi, vowsportrayed.com and two more.

stringsoptional.com shares at least some of its name servers with other domains, including kinziementalhealth.com, taqwaenterpriseoffice.workers.dev, projektbrief-kunden.pages.dev and two others.

These name servers are frequently paired with the name servers coleman.ns.cloudflare.com, hans.ns.cloudflare.com and fred.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

cosmin.ns.cloudflare.com has IP addresses 108.162.195.45, 162.159.44.45 and 172.64.35.45, plus 3 other.

sofia.ns.cloudflare.com has IP addresses 108.162.192.223, 172.64.32.223 and 173.245.58.223, plus 3 other.

stringsoptional.com - robtex.com