substrings.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`substrings.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:8a78^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:3674^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.54.116^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.138.120^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`boyd.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`boyd.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`boyd.ns.cloudflare.com`
		A	108.162.193.75^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	172.64.33.75^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	173.245.59.75^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
NS	`fay.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a73^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c073^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`fay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2073^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`fay.ns.cloudflare.com`
		A	108.162.192.115^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fay.ns.cloudflare.com`
		A	172.64.32.115^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fay.ns.cloudflare.com`
		A	173.245.58.115^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fay.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.54.116, 172.67.138.120
		IPv6 hints	2606:4700:3032::ac43:8a78, 2606:4700:3034::6815:3674
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=196, name=cloudflare-ech.com
SOA	`boyd.ns.cloudflare.com`dns@cloudflare.com serial=2416296179

`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=1793351656

Same first word

substrings.com

Previous names

Next names

DNS History

13 records (6 active, 7 former)

●NSboyd.ns.cloudflare.com2026-08-31 → 2026-10-30 · 3 obs

○ 2017-04-01 21:55:24
● 2026-08-31 16:49:56
● 2026-10-30 09:26:40

●NSfay.ns.cloudflare.com2026-08-31 → 2026-10-30 · 3 obs

○ 2017-04-01 21:55:24
● 2026-08-31 16:49:56
● 2026-10-30 09:26:40

○NSns.f20.com2015-04-27 → 2017-04-01 · 4 obs

● 2015-04-27 14:16:48
● 2017-04-01 21:55:24
○ 2026-08-31 16:49:56
○ 2026-10-30 09:26:40

○NSns2.f20.com2015-04-27 → 2017-04-01 · 4 obs

● 2015-04-27 14:16:48
● 2017-04-01 21:55:24
○ 2026-08-31 16:49:56
○ 2026-10-30 09:26:40

●A104.21.54.1162026-10-01 → 2026-10-30 · 3 obs

○ 2026-08-31 16:49:56
● 2026-10-01 14:23:12
● 2026-10-30 09:26:40

●A172.67.138.1202026-10-01 → 2026-10-30 · 3 obs

○ 2026-08-31 16:49:56
● 2026-10-01 14:23:12
● 2026-10-30 09:26:40

○A185.53.177.202015-04-27 → 2017-04-01 · 4 obs

● 2015-04-27 14:16:48
● 2017-04-01 21:55:24
○ 2026-08-31 16:49:56
○ 2026-10-30 09:26:40

○A188.114.96.02026-08-31 → 2026-08-31 · 4 obs

○ 2017-04-01 21:55:24
● 2026-08-31 16:49:56
○ 2026-10-01 14:23:12
○ 2026-10-30 09:26:40

○A188.114.97.02026-08-31 → 2026-08-31 · 4 obs

○ 2017-04-01 21:55:24
● 2026-08-31 16:49:56
○ 2026-10-01 14:23:12
○ 2026-10-30 09:26:40

●A2606:4700:3032::ac43:8a782026-10-01 → 2026-10-30 · 3 obs

○ 2026-08-31 16:49:56
● 2026-10-01 14:23:12
● 2026-10-30 09:26:40

●A2606:4700:3034::6815:36742026-10-01 → 2026-10-30 · 3 obs

○ 2026-08-31 16:49:56
● 2026-10-01 14:23:12
● 2026-10-30 09:26:40

○A2a06:98c1:3120::2026-08-31 → 2026-08-31 · 4 obs

○ 2017-04-01 21:55:24
● 2026-08-31 16:49:56
○ 2026-10-01 14:23:12
○ 2026-10-30 09:26:40

○A2a06:98c1:3121::2026-08-31 → 2026-08-31 · 4 obs

○ 2017-04-01 21:55:24
● 2026-08-31 16:49:56
○ 2026-10-01 14:23:12
○ 2026-10-30 09:26:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net, l.gtld-servers.net...	-
substrings.com	fay.ns.cloudflare.com, boyd.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:173.245.58.115

NS records: fay.ns.cloudflare.com, boyd.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for substrings.com (unsigned zone)

⏱️ Timing

Total: 693ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.138.120, 104.21.54.116`
AAAA	2	`2606:4700:3032::ac43:8a78, 2606:4700:3034::6815:3674`
NS	2	`boyd.ns.cloudflare.com, fay.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`boyd.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

substrings.com directs to four IP numbers, which are 104.21.54.116, 172.67.138.120, 2606:4700:3032::ac43:8a78 and 2606:4700:3034::6815:3674.

Two other host names, along with god5q.cfd, tsars-casino.best and wellnextflamboyantsummit.com, also share IP numbers with substrings.com.

Name Servers

DNS delegation for substrings.com points to two name servers: boyd.ns.cloudflare.com and fay.ns.cloudflare.com.

substrings.com shares its NS records with other domains, for example vhoogeboom.net, kavamora.com, racesl.com and two others.

The name servers of substrings.com overlap at least partially with those of other domains — among them gecahi4588-12440-0-yxg.pages.dev, meindlschuherabatt.com, potsofluck-at-63049.pages.dev and two more.

These name servers commonly appear alongside the name servers rommy.ns.cloudflare.com and martha.ns.cloudflare.com.

DNS names with 6 IP addresses:

boyd.ns.cloudflare.com has IP addresses 108.162.193.75, 172.64.33.75 and 173.245.59.75, plus 3 other.

fay.ns.cloudflare.com has IP addresses 108.162.192.115, 172.64.32.115 and 173.245.58.115, plus 3 other.