studycrumb.com - dns.ninja

`studycrumb.com`

DNSSEC	⚠️ Not signed
A	216.150.1.1^{🇨🇦 Amazon216.150.1.0/24 EC2 Prefix}
A	216.150.16.193^{🇨🇦 Amazon216.150.16.0/24 EC2 Prefix}
NS	`ns1.vercel-dns.com` ⭐
		A	2620:4d:4000:6259:7:13:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p13.nsone.net`
		A	198.51.44.13^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p13.nsone.net`
NS	`ns2.vercel-dns.com`
		A	2a00:edc0:6259:7:13::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p13.nsone.net`
		A	198.51.45.13^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p13.nsone.net`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c25::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadtq-in-f26.1e100.net`
		A	192.178.218.27^{🇺🇸 Google192.178.218.0/24}
			PTR	`yuiadtq-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=bjc_EWJBDKCtkAREhlBlpJpLvNoOs1J6aJBoKvQfQZM`
TXT	`v=spf1 include:_spf.google.com include:spf.selzy.com ~all`
SOA	`ns1.vercel-dns.com`hostmaster@nsone.net serial=1657745896

`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=1781056593

rank #140689 globally
rank #62632 in the tld
📈 Tranco rank: #508,627

Subdomains

www.studycrumb.com

Same first word

studycrumb.com

DNS History

15 records (9 active, 6 former)

●NSns1.vercel-dns.com2026-02-15 → 2026-06-10 · 2 obs

● 2026-02-15 19:37:48
● 2026-06-10 02:12:22

●NSns2.vercel-dns.com2026-02-15 → 2026-06-10 · 2 obs

● 2026-02-15 19:37:48
● 2026-06-10 02:12:22

●MXalt1.aspmx.l.google.com2026-02-15 → 2026-06-10 · 2 obs

● 2026-02-15 19:37:48
● 2026-06-10 02:12:22

●MXalt2.aspmx.l.google.com2026-02-15 → 2026-06-10 · 2 obs

● 2026-02-15 19:37:48
● 2026-06-10 02:12:22

●MXalt3.aspmx.l.google.com2026-02-15 → 2026-06-10 · 2 obs

● 2026-02-15 19:37:48
● 2026-06-10 02:12:22

●MXalt4.aspmx.l.google.com2026-02-15 → 2026-06-10 · 2 obs

● 2026-02-15 19:37:48
● 2026-06-10 02:12:22

●MXaspmx.l.google.com2026-02-15 → 2026-06-10 · 2 obs

● 2026-02-15 19:37:48
● 2026-06-10 02:12:22

●A216.150.1.12026-02-17 → 2026-06-10 · 19 obs

○ 2026-02-17 03:53:12
● 2026-02-17 08:31:58
○ 2026-02-17 10:41:20
○ 2026-02-18 17:49:52
● 2026-02-18 23:19:52
● 2026-02-20 01:04:30
○ 2026-02-22 09:59:36
○ 2026-03-26 00:10:36
● 2026-03-26 03:59:00
○ 2026-03-26 12:54:58
○ 2026-04-06 13:26:56
● 2026-04-06 22:47:38
○ 2026-05-09 15:35:38
○ 2026-05-10 04:27:30
● 2026-05-29 14:32:54
○ 2026-06-09 12:43:00
○ 2026-06-09 13:47:12
● 2026-06-10 02:12:20
● 2026-06-10 02:12:22

○A216.150.1.1292026-02-15 → 2026-05-10 · 18 obs

● 2026-02-15 19:37:48
● 2026-02-17 03:53:12
○ 2026-02-17 08:31:58
○ 2026-02-20 01:04:30
● 2026-02-22 09:59:36
● 2026-02-23 04:50:52
○ 2026-02-23 15:50:56
○ 2026-02-24 18:46:56
● 2026-02-25 05:15:42
○ 2026-03-26 00:10:36
○ 2026-03-26 12:54:58
● 2026-04-06 13:26:56
○ 2026-04-06 22:47:38
● 2026-05-09 15:35:38
○ 2026-05-10 00:27:54
● 2026-05-10 04:27:30
○ 2026-05-29 14:32:54
○ 2026-06-10 02:12:22

○A216.150.1.1932026-02-17 → 2026-06-09 · 15 obs

○ 2026-02-17 10:41:20
● 2026-02-17 13:45:08
○ 2026-02-17 23:15:32
○ 2026-02-18 23:19:52
● 2026-02-19 01:01:12
○ 2026-02-20 01:04:30
○ 2026-02-23 04:50:52
● 2026-02-23 15:50:56
● 2026-02-23 18:25:08
○ 2026-02-24 17:43:40
○ 2026-05-09 15:35:38
● 2026-05-10 00:27:54
● 2026-06-09 12:43:00
○ 2026-06-09 13:47:12
○ 2026-06-10 02:12:22

○A216.150.1.652026-02-17 → 2026-06-09 · 21 obs

○ 2026-02-15 19:37:48
● 2026-02-17 03:53:12
● 2026-02-17 08:31:58
○ 2026-02-17 10:41:20
○ 2026-02-17 23:15:32
● 2026-02-18 17:49:52
○ 2026-02-18 23:19:52
○ 2026-02-23 15:50:56
● 2026-02-23 18:25:08
● 2026-02-24 18:46:56
○ 2026-02-25 05:15:42
○ 2026-03-26 12:54:58
● 2026-04-06 13:26:56
○ 2026-04-06 22:47:38
● 2026-05-09 15:35:38
● 2026-05-10 00:27:54
○ 2026-05-10 04:27:30
○ 2026-06-09 12:43:00
● 2026-06-09 13:47:12
○ 2026-06-10 02:12:20
○ 2026-06-10 02:12:22

○A216.150.16.12026-02-17 → 2026-04-06 · 18 obs

○ 2026-02-15 19:37:48
○ 2026-02-17 08:31:58
● 2026-02-17 10:41:20
● 2026-02-17 23:15:32
○ 2026-02-18 17:49:52
○ 2026-02-19 01:01:12
● 2026-02-20 01:04:30
○ 2026-02-22 09:59:36
○ 2026-02-24 17:43:40
● 2026-02-24 18:46:56
● 2026-02-25 05:15:42
○ 2026-03-26 00:10:36
○ 2026-03-26 03:59:00
● 2026-03-26 12:54:58
○ 2026-04-06 13:26:56
● 2026-04-06 22:47:38
○ 2026-05-09 15:35:38
○ 2026-06-10 02:12:22

○A216.150.16.1292026-02-18 → 2026-06-09 · 18 obs

○ 2026-02-15 19:37:48
○ 2026-02-18 17:49:52
● 2026-02-18 23:19:52
○ 2026-02-19 01:01:12
○ 2026-02-22 09:59:36
● 2026-02-23 04:50:52
● 2026-02-23 15:50:56
○ 2026-02-23 18:25:08
● 2026-02-24 17:43:40
○ 2026-02-24 18:46:56
○ 2026-02-25 05:15:42
● 2026-03-26 00:10:36
● 2026-03-26 03:59:00
○ 2026-03-26 12:54:58
○ 2026-05-29 14:32:54
● 2026-06-09 12:43:00
○ 2026-06-09 13:47:12
○ 2026-06-10 02:12:22

●A216.150.16.1932026-02-15 → 2026-06-10 · 17 obs

● 2026-02-15 19:37:48
○ 2026-02-17 03:53:12
○ 2026-02-17 08:31:58
● 2026-02-17 10:41:20
○ 2026-02-17 13:45:08
● 2026-02-17 23:15:32
● 2026-02-18 17:49:52
○ 2026-02-18 23:19:52
○ 2026-02-20 01:04:30
● 2026-02-22 09:59:36
○ 2026-02-23 04:50:52
○ 2026-02-25 05:15:42
● 2026-03-26 00:10:36
○ 2026-03-26 03:59:00
○ 2026-06-09 12:43:00
● 2026-06-09 13:47:12
● 2026-06-10 02:12:22

○A216.150.16.652026-03-26 → 2026-03-26 · 4 obs

○ 2026-03-26 03:59:00
● 2026-03-26 12:54:58
○ 2026-04-06 13:26:56
○ 2026-06-10 02:12:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
studycrumb.com	ns1.vercel-dns.com, ns2.vercel-dns.com	4 records

✅ Authoritative Response

Server:198.51.45.13

NS records: ns1.vercel-dns.com, ns2.vercel-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studycrumb.com (unsigned zone)

⏱️ Timing

Total: 468ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`216.150.16.193, 216.150.1.65`
NS	2	`ns1.vercel-dns.com, ns2.vercel-dns.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	2	`google-site-verification=bjc_EWJBDKCtkAR, v=spf1 include:_spf.google.com include:s`
SOA	1	`ns1.vercel-dns.com hostmaster.nsone.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.vercel-dns.com, ns1.vercel-dns.com, ns2.vercel-dns.com...)

Analysis

Hierarchy

studycrumb.com is a parent domain of www.studycrumb.com.

IP Addresses

studycrumb.com points to two IP numbers: 216.150.1.1 and 216.150.16.193.

australiantraveller.com, rebuilding.ca.gov, thedentistsatgc.com and two other host names share IP numbers with studycrumb.com.

Name Servers

Two name servers handle the delegation for studycrumb.com: ns1.vercel-dns.com and ns2.vercel-dns.com.

studycrumb.com uses the same name servers as several other domains — among them ethdash.xyz, valentinruiz.com, rijschoolrij-xpert.nl and two more.

studycrumb.com at least partially shares name servers with other domains, for instance httpete.com, lasylvaine.co.uk and orbaone.com.

ns1.vercel-dns.com and ns2.vercel-dns.com both carry two IP addresses. The A records for ns1.vercel-dns.com are 198.51.44.13 and 2620:4d:4000:6259:7:13:0:1; the A records for ns2.vercel-dns.com are 198.51.45.13 and 2a00:edc0:6259:7:13::2.

Mail Servers

studycrumb.com has 5 mail servers — aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two more.

studycrumb.com has at least partial mail server overlap with other domains such as floorcofloor.com, egoarte.es, ns500768.ns500758.ns500698.ns500758.ns500735.ns500736.ns500698.ns500698.ns500698.ns500735.ns500619.ns500576.ns500576.trackreceptor.com and two more.

These mail servers often appear together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and three other mail servers.

Hostnames that resolve to two IP addresses:

aspmx.l.google.com resolves to two addresses: 192.178.218.27 and 2607:f8b0:4004:c25::1a.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.26 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com resolves to two addresses: 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.