gradsource.com - dns.ninja

`gradsource.com`

DNSSEC	⚠️ Not signed
A	2606:4700::6812:699^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:799^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.6.153^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.7.153^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`adaline.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2631^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adaline.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c231^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`adaline.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2231^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`adaline.ns.cloudflare.com`
		A	108.162.194.49^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adaline.ns.cloudflare.com`
		A	162.159.38.49^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adaline.ns.cloudflare.com`
		A	172.64.34.49^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`adaline.ns.cloudflare.com`
NS	`john.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bb9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`john.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`john.ns.cloudflare.com`
		A	108.162.193.185^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	172.64.33.185^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
		A	173.245.59.185^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`john.ns.cloudflare.com`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com`⁽²⁰⁰⁾
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`MS=ms54997326`
TXT	`d6vl59zlxdm57n9wv5ptcmp3ygjgzsyh`
TXT	`v=spf1 include:swiftpost.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.18.6.153, 104.18.7.153
		IPv6 hints	2606:4700::6812:699, 2606:4700::6812:799
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=14, name=cloudflare-ech.com
SOA	`adaline.ns.cloudflare.com`dns@cloudflare.com serial=2407963509

`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=1784778022

Subdomains

www.gradsource.com

Same first word

gradsource.com

Similar names

decorsugar.com

decorarugs.com

guardscore.com

guardscore.mobi

guardscore.org

guardscore.ca

guardscore.net

DNS History

15 records (8 active, 7 former)

●NSadaline.ns.cloudflare.com2026-02-16 → 2026-07-23 · 3 obs

○ 2020-01-27 08:14:22
● 2026-02-16 08:50:28
● 2026-07-23 03:57:30

●NSjohn.ns.cloudflare.com2026-02-16 → 2026-07-23 · 3 obs

○ 2020-01-27 08:14:22
● 2026-02-16 08:50:28
● 2026-07-23 03:57:30

○NSns5.swiftpost.net2015-05-14 → 2020-01-27 · 4 obs

● 2015-05-14 16:31:44
● 2020-01-27 08:14:22
○ 2026-02-16 08:50:28
○ 2026-07-23 03:57:30

○NSns6.swiftpost.net2015-05-14 → 2020-01-27 · 4 obs

● 2015-05-14 16:31:44
● 2020-01-27 08:14:22
○ 2026-02-16 08:50:28
○ 2026-07-23 03:57:30

○MXquinstreet.com.mail5.psmtp.com2015-05-14 → 2015-05-14 · 3 obs

● 2015-05-14 16:31:44
○ 2015-10-10 22:34:52
○ 2026-07-23 03:57:30

○MXquinstreet.com.mail6.psmtp.com2015-05-14 → 2015-05-14 · 3 obs

● 2015-05-14 16:31:44
○ 2015-10-10 22:34:52
○ 2026-07-23 03:57:30

○MXquinstreet.com.mail7.psmtp.com2015-05-14 → 2015-05-14 · 3 obs

● 2015-05-14 16:31:44
○ 2015-10-10 22:34:52
○ 2026-07-23 03:57:30

○MXquinstreet.com.mail8.psmtp.com2015-05-14 → 2015-05-14 · 3 obs

● 2015-05-14 16:31:44
○ 2015-10-10 22:34:52
○ 2026-07-23 03:57:30

●MXus-smtp-inbound-1.mimecast.com2015-10-10 → 2026-07-23 · 3 obs

○ 2015-05-14 16:31:44
● 2015-10-10 22:34:52
● 2026-07-23 03:57:30

●MXus-smtp-inbound-2.mimecast.com2015-10-10 → 2026-07-23 · 3 obs

○ 2015-05-14 16:31:44
● 2015-10-10 22:34:52
● 2026-07-23 03:57:30

●A104.18.6.1532026-02-16 → 2026-07-23 · 3 obs

○ 2020-01-27 08:14:22
● 2026-02-16 08:50:28
● 2026-07-23 03:57:30

●A104.18.7.1532026-02-16 → 2026-07-23 · 3 obs

○ 2020-01-27 08:14:22
● 2026-02-16 08:50:28
● 2026-07-23 03:57:30

●A2606:4700::6812:6992026-02-16 → 2026-07-23 · 3 obs

○ 2020-01-27 08:14:22
● 2026-02-16 08:50:28
● 2026-07-23 03:57:30

●A2606:4700::6812:7992026-02-16 → 2026-07-23 · 3 obs

○ 2020-01-27 08:14:22
● 2026-02-16 08:50:28
● 2026-07-23 03:57:30

○A70.42.23.2442015-05-14 → 2020-01-27 · 4 obs

● 2015-05-14 16:31:44
● 2020-01-27 08:14:22
○ 2026-02-16 08:50:28
○ 2026-07-23 03:57:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
gradsource.com	john.ns.cloudflare.com, adaline.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.49

NS records: john.ns.cloudflare.com, adaline.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gradsource.com (unsigned zone)

⏱️ Timing

Total: 327ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.18.6.153, 104.18.7.153`
AAAA	2	`2606:4700::6812:799, 2606:4700::6812:699`
NS	2	`adaline.ns.cloudflare.com, john.ns.cloudflare.com`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 100, us-smtp-inbound-2.mimecast.com (pri: 200`
TXT	3	`MS=ms54997326, d6vl59zlxdm57n9wv5ptcmp3ygjgzsyh...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`adaline.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.gradsource.com is delegated beneath gradsource.com.

IP Addresses

gradsource.com directs to four IP numbers, which are 104.18.6.153, 104.18.7.153, 2606:4700::6812:699 and 2606:4700::6812:799.

api.tst.gateway.nederlandseloterij.nl, accel.com.au, www.purple.com plus two other host names have IP numbers in common with gradsource.com.

Name Servers

gradsource.com uses two name servers for its delegation: adaline.ns.cloudflare.com and john.ns.cloudflare.com.

The name server configuration of gradsource.com is shared with other domains, for instance revleap.me, educationdynamics.com, kickass-anime.ro and two others.

There is at least partial name server overlap between gradsource.com and other domains — hk6d.online, ofawoni.top, ybetss.de and two more among them.

The name servers greg.ns.cloudflare.com, logan.ns.cloudflare.com and kenneth.ns.cloudflare.com are often found in combination with these name servers.

Hosts with 6 IP addresses each:

Hostname adaline.ns.cloudflare.com directs to 108.162.194.49, 162.159.38.49 and 172.64.34.49 along with 3 other IP addresses.

Hostname john.ns.cloudflare.com directs to 108.162.193.185, 172.64.33.185 and 173.245.59.185 along with 3 other IP addresses.

Mail Servers

gradsource.com uses two mail servers, us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

The mail server setup of gradsource.com matches that of other domains such as argusvickers.com, fencingsupply.com, vintagebooks.com and two others.

At least some of the mail servers used by gradsource.com are shared with other domains: goldstargps.com, prostamp.ca, kostabrowne.com and two others among them.

Hosts with 6 IP addresses each:

Hostname us-smtp-inbound-1.mimecast.com directs to 170.10.128.141, 170.10.128.221 and 170.10.128.242 along with 3 other IP addresses.

Hostname us-smtp-inbound-2.mimecast.com directs to 170.10.128.141, 170.10.128.221 and 170.10.128.242 along with 3 other IP addresses.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.141 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.221 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.128.242 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.141 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.221 IP addresses each.

Both us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com resolve to 170.10.132.242 IP addresses each.