studycalculator.com - dns.ninja

`studycalculator.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:a23a^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:52bb^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.82.187^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.162.58^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`osmar.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c7c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`osmar.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c37c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`osmar.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:237c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`osmar.ns.cloudflare.com`
		A	108.162.195.124^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`osmar.ns.cloudflare.com`
		A	162.159.44.124^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`osmar.ns.cloudflare.com`
		A	172.64.35.124^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`osmar.ns.cloudflare.com`
NS	`sloan.ns.cloudflare.com`
		A	2606:4700:50::a29f:2634^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sloan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c234^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sloan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2234^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sloan.ns.cloudflare.com`
		A	108.162.194.52^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sloan.ns.cloudflare.com`
		A	162.159.38.52^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sloan.ns.cloudflare.com`
		A	172.64.34.52^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sloan.ns.cloudflare.com`
MX	`mx10.antispam.mailspamprotection.com` ⭐
		A	34.149.79.66^{🇺🇸 Google34.148.0.0/14}
			PTR	`66.79.149.34.bc.googleusercontent.com`
MX	`mx20.antispam.mailspamprotection.com`⁽²⁰⁾
		A	34.120.156.61^{🇺🇸 Google34.120.0.0/14}
			PTR	`61.156.120.34.bc.googleusercontent.com`
MX	`mx30.antispam.mailspamprotection.com`⁽³⁰⁾
		A	34.111.121.216^{🇺🇸 Google34.108.0.0/14}
			PTR	`216.121.111.34.bc.googleusercontent.com`
TXT	`v=spf1 +a +mx +ip4:35.212.78.219 include:studycalculator.com.spf.auto.dnssma...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.82.187, 172.67.162.58
		IPv6 hints	2606:4700:3033::ac43:a23a, 2606:4700:3036::6815:52bb
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=91, name=cloudflare-ech.com
SOA	`osmar.ns.cloudflare.com`dns@cloudflare.com serial=2408174773

`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=1784332937

Same first word

studycalculator.com

studycalculator.cloud

DNS History

19 records (9 active, 10 former)

○NSns03.domaincontrol.com2016-12-18 → 2018-05-28 · 4 obs

● 2016-12-18 13:08:06
● 2018-05-28 10:49:50
○ 2026-03-24 01:10:34
○ 2026-07-18 00:14:50

○NSns04.domaincontrol.com2016-12-18 → 2018-05-28 · 4 obs

● 2016-12-18 13:08:06
● 2018-05-28 10:49:50
○ 2026-03-24 01:10:34
○ 2026-07-18 00:14:50

●NSosmar.ns.cloudflare.com2026-03-24 → 2026-07-18 · 3 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
● 2026-07-18 00:14:50

●NSsloan.ns.cloudflare.com2026-03-24 → 2026-07-18 · 3 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
● 2026-07-18 00:14:50

○MXmailstore1.secureserver.net2016-12-18 → 2018-05-28 · 4 obs

● 2016-12-18 13:08:06
● 2018-05-28 10:49:50
○ 2026-03-24 01:10:34
○ 2026-07-18 00:14:50

●MXmx10.antispam.mailspamprotection.com2026-03-24 → 2026-07-18 · 3 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
● 2026-07-18 00:14:50

●MXmx20.antispam.mailspamprotection.com2026-03-24 → 2026-07-18 · 3 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
● 2026-07-18 00:14:50

●MXmx30.antispam.mailspamprotection.com2026-03-24 → 2026-07-18 · 3 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
● 2026-07-18 00:14:50

○MXsmtp.secureserver.net2016-12-18 → 2018-05-28 · 4 obs

● 2016-12-18 13:08:06
● 2018-05-28 10:49:50
○ 2026-03-24 01:10:34
○ 2026-07-18 00:14:50

●A104.21.82.1872026-03-24 → 2026-07-18 · 5 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
○ 2026-06-27 04:24:46
● 2026-06-28 10:59:22
● 2026-07-18 00:14:50

●A172.67.162.582026-03-24 → 2026-07-18 · 5 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
○ 2026-06-27 04:24:46
● 2026-06-28 10:59:22
● 2026-07-18 00:14:50

○A188.114.96.02026-06-27 → 2026-06-27 · 4 obs

○ 2026-06-21 17:52:12
● 2026-06-27 04:24:46
○ 2026-06-28 10:59:22
○ 2026-07-18 00:14:50

○A188.114.97.02026-06-27 → 2026-06-27 · 4 obs

○ 2026-06-21 17:52:12
● 2026-06-27 04:24:46
○ 2026-06-28 10:59:22
○ 2026-07-18 00:14:50

●A2606:4700:3033::ac43:a23a2026-06-21 → 2026-07-18 · 5 obs

○ 2026-05-21 09:20:56
● 2026-06-21 17:52:12
○ 2026-06-27 04:24:46
● 2026-06-28 10:59:22
● 2026-07-18 00:14:50

●A2606:4700:3036::6815:52bb2026-03-24 → 2026-07-18 · 5 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
○ 2026-06-27 04:24:46
● 2026-06-28 10:59:22
● 2026-07-18 00:14:50

○A2606:4700:3036::ac43:a23a2026-03-24 → 2026-05-21 · 5 obs

○ 2018-05-28 10:49:50
● 2026-03-24 01:10:34
● 2026-05-21 09:20:56
○ 2026-06-21 17:52:12
○ 2026-07-18 00:14:50

○A2a06:98c1:3120::2026-06-27 → 2026-06-27 · 4 obs

○ 2026-06-21 17:52:12
● 2026-06-27 04:24:46
○ 2026-06-28 10:59:22
○ 2026-07-18 00:14:50

○A2a06:98c1:3121::2026-06-27 → 2026-06-27 · 4 obs

○ 2026-06-21 17:52:12
● 2026-06-27 04:24:46
○ 2026-06-28 10:59:22
○ 2026-07-18 00:14:50

○A50.63.202.582016-12-18 → 2018-05-28 · 4 obs

● 2016-12-18 13:08:06
● 2018-05-28 10:49:50
○ 2026-03-24 01:10:34
○ 2026-07-18 00:14:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
studycalculator.com	sloan.ns.cloudflare.com, osmar.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.124

NS records: sloan.ns.cloudflare.com, osmar.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studycalculator.com (unsigned zone)

⏱️ Timing

Total: 370ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.162.58, 104.21.82.187`
AAAA	2	`2606:4700:3033::ac43:a23a, 2606:4700:3036::6815:52bb`
NS	2	`osmar.ns.cloudflare.com, sloan.ns.cloudflare.com`
MX	3	`mx10.antispam.mailspamprotection.com (pr, mx20.antispam.mailspamprotection.com (pr...`
TXT	1	`v=spf1 +a +mx +ip4:35.212.78.219 includ`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`osmar.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

studycalculator.com resolves to four IP addresses: 104.21.82.187, 172.67.162.58, 2606:4700:3033::ac43:a23a and 2606:4700:3036::6815:52bb.

Two other host names, along with nippaz.com, jewelrycarats.com and bv-email.com, also share IP numbers with studycalculator.com.

Name Servers

DNS delegation for studycalculator.com points to two name servers: osmar.ns.cloudflare.com and sloan.ns.cloudflare.com.

studycalculator.com shares its NS records with other domains, for example zakarestaurant.com, belovedbaltimore.org, toutcash.com and two others.

studycalculator.com shares at least some of its name servers with other domains, including o8.hair, 1wejxh.life, 1wajyd.life and two others.

These name servers are frequently paired with the name servers leia.ns.cloudflare.com, trey.ns.cloudflare.com and cris.ns.cloudflare.com.

DNS names with 6 IP addresses:

osmar.ns.cloudflare.com has IP addresses 108.162.195.124, 162.159.44.124 and 172.64.35.124, plus 3 other.

sloan.ns.cloudflare.com has IP addresses 108.162.194.52, 162.159.38.52 and 172.64.34.52, plus 3 other.

Mail Servers

studycalculator.com is handled by three mail servers: mx10.antispam.mailspamprotection.com, mx20.antispam.mailspamprotection.com and mx30.antispam.mailspamprotection.com.

There is at least a partial MX overlap between studycalculator.com and other domains, including telpix.com, centraloregongermanshepherds.com, actiondirecte.it and two others.

mx10.antispam.mailspamprotection.com, mx20.antispam.mailspamprotection.com and mx30.antispam.mailspamprotection.com all have one IP address each — mx10.antispam.mailspamprotection.com directs to 34.149.79.66, mx20.antispam.mailspamprotection.com directs to 34.120.156.61 and mx30.antispam.mailspamprotection.com directs to 34.111.121.216.