`sierrasierra.com`

DNSSEC	⚠️ Not signed
A	50.255.49.130^{🇺🇸 COMCAST-IBONE50.128.0.0/9 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mount Laurel, NJ 08054}
NS	`ns93.worldnic.com` ⭐
		A	162.159.26.217^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns94.worldnic.com`
		A	162.159.27.155^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`sierrasierra-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::7^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr02cu00107.inbound.protection.outlook.com`
		A	2a01:111:f403:c922::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr02cu00702.inbound.protection.outlook.com`
		A	2a01:111:f403:c931::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:f805::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr03cu00301.inbound.protection.outlook.com`
		A	52.101.8.51^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm1pr04cu00203.inbound.protection.outlook.com`
		A	52.101.9.20^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr02cu00604.inbound.protection.outlook.com`
		A	52.101.11.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr03cu00102.inbound.protection.outlook.com`
		A	52.101.11.9^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr02cu00101.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms57456812`
SOA	`NS93.WORLDNIC.com`namehost@WORLDNIC.com serial=122120721

`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=1775935282

WOT: SAFE (64/100)

Subdomains

mail.sierrasierra.com

Same first word

sierrasierra.com

DNS History

9 records (4 active, 5 former)

●NSns93.worldnic.com2015-08-15 → 2026-04-11 · 2 obs

● 2015-08-15 13:06:02
● 2026-04-11 19:23:34

●NSns94.worldnic.com2015-08-15 → 2026-04-11 · 2 obs

● 2015-08-15 13:06:02
● 2026-04-11 19:23:34

○MXmail.sierrasierra.com2015-08-15 → 2019-03-22 · 3 obs

● 2015-08-15 13:06:02
● 2019-03-22 13:20:38
○ 2026-04-11 19:23:34

○MXmx1.emailsrvr.com2019-03-22 → 2019-03-22 · 3 obs

○ 2015-08-15 13:06:02
● 2019-03-22 13:20:38
○ 2026-04-11 19:23:34

○MXmx2.emailsrvr.com2019-03-22 → 2019-03-22 · 3 obs

○ 2015-08-15 13:06:02
● 2019-03-22 13:20:38
○ 2026-04-11 19:23:34

●MXsierrasierra-com.mail.protection.outlook.com2026-04-11 → 2026-04-11 · 2 obs

○ 2019-03-22 13:20:38
● 2026-04-11 19:23:34

○A50.206.240.2302016-05-17 → 2016-05-17 · 4 obs

○ 2016-03-08 11:01:16
● 2016-05-17 15:34:48
○ 2017-02-10 20:02:38
○ 2026-04-11 19:23:34

●A50.255.49.1302017-02-10 → 2026-04-11 · 3 obs

○ 2016-05-17 15:34:48
● 2017-02-10 20:02:38
● 2026-04-11 19:23:34

○A70.32.69.102015-08-15 → 2016-03-08 · 4 obs

● 2015-08-15 13:06:02
● 2016-03-08 11:01:16
○ 2016-05-17 15:34:48
○ 2026-04-11 19:23:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sierrasierra.com	ns93.worldnic.com, ns94.worldnic.com	2 records

✅ Authoritative Response

Server:162.159.27.155

NS records: ns93.worldnic.com, ns94.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sierrasierra.com (unsigned zone)

⏱️ Timing

Total: 207ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`50.255.49.130`
NS	2	`ns94.worldnic.com, ns93.worldnic.com`
MX	1	`sierrasierra-com.mail.protection.outlook`
TXT	2	`v=spf1 include:spf.protection.outlook.co, MS=ms57456812`
SOA	1	`NS93.WORLDNIC.com namehost.WORLDNIC.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns93.worldnic.com, ns94.worldnic.com)

Analysis

Hierarchy

mail.sierrasierra.com has sierrasierra.com as its parent.

IP Addresses

sierrasierra.com maps to IP address 50.255.49.130.

Name Servers

Two name servers ns93.worldnic.com and ns94.worldnic.com are delegated to sierrasierra.com.

sierrasierra.com uses the same name server configuration as other domains, such as expocadcommunity.com, metroambulance.com, dfsales.com, gohaynes.biz and thebridalshop.com.

Host names with a single IP address:

ns93.worldnic.com points to 162.159.26.217

ns94.worldnic.com points to 162.159.27.155

Mail Servers

sierrasierra.com is handled by a single mail server, sierrasierra-com.mail.protection.outlook.com.

sierrasierra-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::7, 2a01:111:f403:c922::2, 2a01:111:f403:c931::, 2a01:111:f403:f805::1, 52.101.8.51, 52.101.9.20, 52.101.11.2 and 52.101.11.9.

sierrasierra.com - robtex.com