certain.com - dns.ninja

`certain.com`

DNSSEC	⚠️ Not signed
A	185.158.133.1^{🇩🇪 Cloudflare185.158.133.0/24}
		PTR	`lovable-app-cd-1-4.p.l5e.io`
NS	`ns20.digicertdns.com` ⭐
		A	2600:1800:10::1:1f^{🇺🇸 Tiggee2600:1800:10::/48 DNS Made Easy anycast network}
			PTR	`ns20.digicertdns.com`
		A	208.94.148.223^{🇺🇸 Tiggee208.94.148.0/24 DNS Made Easy anycast network}
			PTR	`ns20.digicertdns.com`
NS	`ns10.dnsmadeeasy.com`
		A	2600:1800:10::1^{🇺🇸 Tiggee2600:1800:10::/48 DNS Made Easy anycast network}
			PTR	`ns10.dnsmadeeasy.com`
		A	208.94.148.4^{🇺🇸 Tiggee208.94.148.0/24 DNS Made Easy anycast network}
			PTR	`ns10.dnsmadeeasy.com`
NS	`ns11.dnsmadeeasy.com`
		A	2600:1801:11::1^{🇺🇸 Tiggee2600:1801:11::/48 DNS Made Easy anycast network}
			PTR	`ns11.dnsmadeeasy.com`
		A	208.80.124.4^{🇺🇸 Tiggee208.80.124.0/24 DNS Made Easy anycast network}
			PTR	`ns11.dnsmadeeasy.com`
NS	`ns12.dnsmadeeasy.com` ⚠️ Not in parent delegation
		A	2600:1802:12::1^{🇺🇸 Tiggee2600:1802:12::/48 DNS Made Easy anycast network}
			PTR	`ns12.dnsmadeeasy.com`
		A	208.80.126.4^{🇺🇸 Tiggee208.80.126.0/24 DNS Made Easy anycast network}
			PTR	`ns12.dnsmadeeasy.com`
NS	`ns13.dnsmadeeasy.com` ⚠️ Not in parent delegation
		A	2600:1801:13::1^{🇺🇸 Tiggee2600:1801:13::/48 DNS Made Easy anycast network}
			PTR	`ns13.dnsmadeeasy.com`
		A	208.80.125.4^{🇺🇸 Tiggee208.80.125.0/24 DNS Made Easy anycast network}
			PTR	`ns13.dnsmadeeasy.com`
NS	`ns14.dnsmadeeasy.com` ⚠️ Not in parent delegation
		A	2600:1802:14::1^{🇺🇸 Tiggee2600:1802:14::/48 DNS Made Easy anycast network}
			PTR	`ns14.dnsmadeeasy.com`
		A	208.80.127.4^{🇺🇸 Tiggee208.80.127.0/24 DNS Made Easy anycast network}
			PTR	`ns14.dnsmadeeasy.com`
NS	`ns15.dnsmadeeasy.com` ⚠️ Not in parent delegation
		A	2600:1800:15::1^{🇺🇸 Tiggee2600:1800:15::/48 DNS Made Easy anycast network}
			PTR	`ns15.dnsmadeeasy.com`
		A	208.94.149.4^{🇺🇸 Tiggee208.94.149.0/24 DNS Made Easy anycast network}
			PTR	`ns15.dnsmadeeasy.com`
MX	`certain-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c946::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch1pr04cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::5^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch4pr21cu00105.inbound.protection.outlook.com`
		A	2a01:111:f403:f901::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr02cu00601.inbound.protection.outlook.com`
		A	2a01:111:f403:f90b::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr04cu00100.inbound.protection.outlook.com`
		A	52.101.40.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy5pr03cu00300.inbound.protection.outlook.com`
		A	52.101.40.6^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-cy1pr03cu00106.inbound.protection.outlook.com`
		A	52.101.41.180^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-byapr04cu00204.inbound.protection.outlook.com`
		A	52.101.41.183^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-byapr04cu00307.inbound.protection.outlook.com`
TXT	`cisco-ci-domain-verification=55bf20f483fbafca0f2d47b65bef2261e88c7dfe89f5a351...`
TXT	`onetrust-domain-verification=878625f8a01f42058e27c55fd770eb6f`
TXT	`google-site-verification=Jx6fLKdgUIAmXAkS1MIoIY7gmiFytKZKpZBiu7H75H8`
TXT	`google-site-verification=x3pWTJJ0OauWCmI2v-FOvCg3ZUYhseSZpn835d5babA`
TXT	`google-site-verification=kJclS9Eb9hLnFC_Q-2D6SgtHoEkJoQo0efOLSvab7Ps`
TXT	`ZOOM_verify_z-wl2HIwQTeEPibUDD8W3A`
TXT	`globalsign-domain-verification=b7mXKQcBBE3-fpnfpFF2Z7DcWhq9yb9XoWOgCPiwYU`
TXT	`pardot836443=b01c39c36508e0b86f1686b8258df071cc0cac991d68923f15e48574bb02d97d`
TXT	`MS=ms60162591`
TXT	`atlassian-domain-verification=dQf8PExrzffiLgIwnnXMRXwqO6ibo9IaaJKN1fL/9CW3bnX...`
TXT	`v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com include:as...`
TXT	`lovable_verification=workspace_01k6grxywdefztvmx7189vn6cp`
TXT	`google-site-verification=TN-nd4igamOauiKcXGbS9QQ2dai7BeiwKB71NZ1rCeM`
TXT	`cloudhealth=b77c2f0e-6351-4bf3-8906-90768a43cc81`
TXT	`intacct-esk=4FED1A517982769BE0538C06A8C0589E`
TXT	`adobe-sign-verification=a359c2d9a676400da4be384574ff69a`
SOA	`ns20.digicertdns.com`dns@digicertdns.com 2009-01-27 #15

`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=1782455965

rank #239808 globally
rank #104401 in the tld
WOT: SAFE (90/100)
📈 Tranco rank: #338,762

Subdomains

eventreg.certain.com

attendesource.certain.com

huharvard.certain.com

stagingaws5.certain.com

adp.certain.com

mail2.certain.com

zendesk.certain.com

rockwell.certain.com

oracle.certain.com

global.certain.com

eeotraining.certain.com

preview.certain.com

mail1.certain.com

aasitebuilders.certain.com

tableau.certain.com

disney.certain.com

previewuat11.certain.com

microsoftevents.certain.com

deutschebank.certain.com

cdn.certain.com

ni.certain.com

grand.certain.com

previewo.certain.com

www.certain.com

dowjones.certain.com

Same first word

certain.ly

certain.net.cn

certain.co.uk

certain.com

certain.app

certain.in

certain.es

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icranet.org

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creatin.ch

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interac.co.uk

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creatin.ru

creatin.co

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traicen.com

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interac.co.jp

cineart.com.py

ciranet.co

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neticar.com.br

certina.com.au

certina.uk

DNS History

38 records (9 active, 29 former)

●NSns10.dnsmadeeasy.com2015-06-28 → 2026-06-26 · 3 obs

○ 2008-01-21 20:34:58
● 2015-06-28 17:47:48
● 2026-06-26 06:43:34

●NSns11.dnsmadeeasy.com2015-06-28 → 2026-06-26 · 3 obs

○ 2008-01-21 20:34:58
● 2015-06-28 17:47:48
● 2026-06-26 06:43:34

●NSns12.dnsmadeeasy.com2015-06-28 → 2026-06-26 · 3 obs

○ 2008-01-21 20:34:58
● 2015-06-28 17:47:48
● 2026-06-26 06:43:34

●NSns13.dnsmadeeasy.com2015-06-28 → 2026-06-26 · 3 obs

○ 2008-01-21 20:34:58
● 2015-06-28 17:47:48
● 2026-06-26 06:43:34

●NSns14.dnsmadeeasy.com2015-06-28 → 2026-06-26 · 3 obs

○ 2008-01-21 20:34:58
● 2015-06-28 17:47:48
● 2026-06-26 06:43:34

●NSns15.dnsmadeeasy.com2015-06-28 → 2026-06-26 · 3 obs

○ 2008-01-21 20:34:58
● 2015-06-28 17:47:48
● 2026-06-26 06:43:34

●NSns20.digicertdns.com2026-06-16 → 2026-06-26 · 3 obs

○ 2015-06-28 17:47:48
● 2026-06-16 09:25:10
● 2026-06-26 06:43:34

○NSudns1.ultradns.net2008-01-21 → 2008-01-21 · 3 obs

● 2008-01-21 20:34:58
○ 2015-06-28 17:47:48
○ 2026-06-26 06:43:34

○NSudns2.ultradns.net2008-01-21 → 2008-01-21 · 3 obs

● 2008-01-21 20:34:58
○ 2015-06-28 17:47:48
○ 2026-06-26 06:43:34

○MXalt1.aspmx.l.google.com2016-09-22 → 2016-12-15 · 5 obs

○ 2008-01-21 20:34:58
● 2016-09-22 16:58:54
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○MXalt2.aspmx.l.google.com2016-09-22 → 2016-12-15 · 5 obs

○ 2008-01-21 20:34:58
● 2016-09-22 16:58:54
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○MXaspmx.l.google.com2016-09-22 → 2016-12-15 · 5 obs

○ 2008-01-21 20:34:58
● 2016-09-22 16:58:54
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○MXaspmx2.googlemail.com2016-09-22 → 2016-12-15 · 5 obs

○ 2008-01-21 20:34:58
● 2016-09-22 16:58:54
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○MXaspmx3.googlemail.com2016-09-22 → 2016-12-15 · 5 obs

○ 2008-01-21 20:34:58
● 2016-09-22 16:58:54
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

●MXcertain-com.mail.protection.outlook.com2021-10-27 → 2026-06-26 · 3 obs

○ 2016-12-15 16:06:14
● 2021-10-27 19:02:34
● 2026-06-26 06:43:34

○MXcertain.com.s7a1.psmtp.com2008-01-21 → 2016-12-15 · 4 obs

● 2008-01-21 20:34:58
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○MXcertain.com.s7a2.psmtp.com2008-01-21 → 2016-12-15 · 4 obs

● 2008-01-21 20:34:58
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○MXcertain.com.s7b1.psmtp.com2008-01-21 → 2016-12-15 · 4 obs

● 2008-01-21 20:34:58
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○MXcertain.com.s7b2.psmtp.com2008-01-21 → 2016-12-15 · 4 obs

● 2008-01-21 20:34:58
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○A107.23.50.682015-11-05 → 2015-11-05 · 4 obs

○ 2015-06-28 17:47:48
● 2015-11-05 03:24:28
○ 2016-02-01 11:58:58
○ 2026-06-26 06:43:34

○A107.23.81.2082015-11-05 → 2015-11-05 · 4 obs

○ 2015-06-28 17:47:48
● 2015-11-05 03:24:28
○ 2016-02-01 11:58:58
○ 2026-06-26 06:43:34

○A141.193.213.102026-02-15 → 2026-05-15 · 5 obs

○ 2021-10-27 19:02:34
● 2026-02-15 09:35:54
● 2026-05-15 16:54:18
○ 2026-06-16 09:25:10
○ 2026-06-26 06:43:34

○A141.193.213.112026-02-15 → 2026-05-15 · 5 obs

○ 2021-10-27 19:02:34
● 2026-02-15 09:35:54
● 2026-05-15 16:54:18
○ 2026-06-16 09:25:10
○ 2026-06-26 06:43:34

●A185.158.133.12026-06-16 → 2026-06-26 · 3 obs

○ 2026-05-15 16:54:18
● 2026-06-16 09:25:10
● 2026-06-26 06:43:34

○A35.230.109.762021-10-27 → 2021-10-27 · 4 obs

○ 2016-12-15 16:06:14
● 2021-10-27 19:02:34
○ 2026-02-15 09:35:54
○ 2026-06-26 06:43:34

○A52.0.146.2492016-06-06 → 2016-12-15 · 5 obs

○ 2016-04-27 02:27:00
● 2016-06-06 16:23:36
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○A52.200.133.612016-06-06 → 2016-12-15 · 5 obs

○ 2016-04-27 02:27:00
● 2016-06-06 16:23:36
● 2016-12-15 16:06:14
○ 2021-10-27 19:02:34
○ 2026-06-26 06:43:34

○A52.23.82.2392016-03-20 → 2016-03-20 · 4 obs

○ 2016-03-08 13:57:40
● 2016-03-20 11:51:44
○ 2016-04-27 02:27:00
○ 2026-06-26 06:43:34

○A52.3.180.2232016-02-01 → 2016-02-01 · 4 obs

○ 2015-11-05 03:24:28
● 2016-02-01 11:58:58
○ 2016-03-08 13:57:40
○ 2026-06-26 06:43:34

○A52.4.196.592016-04-27 → 2016-04-27 · 4 obs

○ 2016-03-20 11:51:44
● 2016-04-27 02:27:00
○ 2016-06-06 16:23:36
○ 2026-06-26 06:43:34

○A52.5.164.1622016-03-08 → 2016-03-08 · 4 obs

○ 2016-02-01 11:58:58
● 2016-03-08 13:57:40
○ 2016-03-20 11:51:44
○ 2026-06-26 06:43:34

○A52.5.43.1602016-02-01 → 2016-02-01 · 4 obs

○ 2015-11-05 03:24:28
● 2016-02-01 11:58:58
○ 2016-03-08 13:57:40
○ 2026-06-26 06:43:34

○A52.7.101.1972016-04-27 → 2016-04-27 · 4 obs

○ 2016-03-20 11:51:44
● 2016-04-27 02:27:00
○ 2016-06-06 16:23:36
○ 2026-06-26 06:43:34

○A52.72.190.1372016-03-20 → 2016-03-20 · 4 obs

○ 2016-03-08 13:57:40
● 2016-03-20 11:51:44
○ 2016-04-27 02:27:00
○ 2026-06-26 06:43:34

○A52.86.86.2392016-03-08 → 2016-03-08 · 4 obs

○ 2016-02-01 11:58:58
● 2016-03-08 13:57:40
○ 2016-03-20 11:51:44
○ 2026-06-26 06:43:34

○A54.174.241.1532015-06-28 → 2015-06-28 · 4 obs

○ 2008-01-21 20:34:58
● 2015-06-28 17:47:48
○ 2015-11-05 03:24:28
○ 2026-06-26 06:43:34

○A54.88.234.1132015-06-28 → 2015-06-28 · 4 obs

○ 2008-01-21 20:34:58
● 2015-06-28 17:47:48
○ 2015-11-05 03:24:28
○ 2026-06-26 06:43:34

○A64.13.239.1502008-01-21 → 2008-01-21 · 3 obs

● 2008-01-21 20:34:58
○ 2015-06-28 17:47:48
○ 2026-06-26 06:43:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, c.gtld-servers.net...	-
certain.com	ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com	4 records

✅ Authoritative Response

Server:208.94.148.4

NS records: ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certain.com (unsigned zone)

⏱️ Timing

Total: 389ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.158.133.1`
NS	6	`ns10.dnsmadeeasy.com, ns13.dnsmadeeasy.com...`
MX	1	`certain-com.mail.protection.outlook.com`
TXT	16	`cisco-ci-domain-verification=55bf20f483f, pardot836443=b01c39c36508e0b86f1686b8258...`
SOA	1	`ns20.digicertdns.com dns.digicertdns.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns10.dnsmadeeasy.com, ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com...)

Analysis

Hierarchy

certain.com is a parent domain; its children include eventreg.certain.com, attendesource.certain.com, huharvard.certain.com, stagingaws5.certain.com, adp.certain.com and a few other host names.

IP Addresses

certain.com resolves to one IP address: 185.158.133.1.

synthexe.com, petereszes.com, lotix.net and two other host names share IP numbers with certain.com.

Name Servers

The DNS delegation for certain.com covers 7 name servers: ns20.digicertdns.com, ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com and 4 more.

certain.com partially shares its NS delegation with several other domains, including labresource.nl, rangeviewlife.com, kawanawatershotel.com.au and two others.

In DNS configurations, these name servers often share authority with ns12.dnsmadeeasy.com, ns13.dnsmadeeasy.com, ns14.dnsmadeeasy.com and 6 other name servers.

Hostnames that resolve to two IP addresses:

ns20.digicertdns.com maps to two IP addresses — 208.94.148.223 and 2600:1800:10::1:1f.

ns10.dnsmadeeasy.com maps to two IP addresses — 208.94.148.4 and 2600:1800:10::1.

ns11.dnsmadeeasy.com maps to two IP addresses — 208.80.124.4 and 2600:1801:11::1.

ns12.dnsmadeeasy.com maps to two IP addresses — 208.80.126.4 and 2600:1802:12::1.

ns13.dnsmadeeasy.com maps to two IP addresses — 208.80.125.4 and 2600:1801:13::1.

ns14.dnsmadeeasy.com maps to two IP addresses — 208.80.127.4 and 2600:1802:14::1.

ns15.dnsmadeeasy.com maps to two IP addresses — 208.94.149.4 and 2600:1800:15::1.

Mail Servers

Mail for certain.com is handled by a single mail server, certain-com.mail.protection.outlook.com.

certain-com.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.40.0, 52.101.40.6, 52.101.41.180 and 5 others.