certref.com - dns.ninja

`certref.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:584^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:857b^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.5.132^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.133.123^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`chris.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b55^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c155^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chris.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2155^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chris.ns.cloudflare.com`
		A	108.162.193.85^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	172.64.33.85^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	173.245.59.85^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
NS	`yolanda.ns.cloudflare.com`
		A	2606:4700:50::adf5:3af1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yolanda.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yolanda.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yolanda.ns.cloudflare.com`
		A	108.162.192.241^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yolanda.ns.cloudflare.com`
		A	172.64.32.241^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yolanda.ns.cloudflare.com`
		A	173.245.58.241^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yolanda.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 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::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.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::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
MX	`b6y5ui2573ukq76kqgeveg64q5dmksel6takdzjbjhy6zhyikg7a.mx-verification.google.com`⁽¹⁵⁾
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.5.132, 172.67.133.123
		IPv6 hints	2606:4700:3032::6815:584, 2606:4700:3035::ac43:857b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=118, name=cloudflare-ech.com
SOA	`chris.ns.cloudflare.com`dns@cloudflare.com serial=2408813542

`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=1785125437

WOT: SAFE (63/100)

Same first word

certref.com

Similar names

ferrtec.com

refcert.com

freertc.org

DNS History

18 records (12 active, 6 former)

●NSchris.ns.cloudflare.com2026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

○NSns01.cashparking.com2015-08-17 → 2017-03-24 · 5 obs

○ 2008-03-17 08:55:22
● 2015-08-17 06:05:32
● 2017-03-24 13:10:38
○ 2026-02-15 19:33:44
○ 2026-07-27 04:32:44

●NSyolanda.ns.cloudflare.com2026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

●MXalt1.aspmx.l.google.com2026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

●MXalt2.aspmx.l.google.com2026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

●MXalt3.aspmx.l.google.com2026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

●MXalt4.aspmx.l.google.com2026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

●MXaspmx.l.google.com2026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

●MXb6y5ui2573ukq76kqgeveg64q5dmksel6takdzjbjhy6zhyikg7a.mx-verification.google.com2026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

○MXmailstore1.secureserver.net2015-08-17 → 2017-03-24 · 5 obs

○ 2008-03-17 08:55:22
● 2015-08-17 06:05:32
● 2017-03-24 13:10:38
○ 2026-02-15 19:33:44
○ 2026-07-27 04:32:44

○MXsmtp.secureserver.net2015-08-17 → 2017-03-24 · 5 obs

○ 2008-03-17 08:55:22
● 2015-08-17 06:05:32
● 2017-03-24 13:10:38
○ 2026-02-15 19:33:44
○ 2026-07-27 04:32:44

●A104.21.5.1322026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

●A172.67.133.1232026-02-15 → 2026-07-27 · 3 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
● 2026-07-27 04:32:44

○A184.168.221.962015-08-17 → 2017-03-24 · 5 obs

○ 2008-03-17 08:55:22
● 2015-08-17 06:05:32
● 2017-03-24 13:10:38
○ 2026-02-15 19:33:44
○ 2026-07-27 04:32:44

●A2606:4700:3032::6815:5842026-07-23 → 2026-07-27 · 3 obs

○ 2026-02-15 19:33:44
● 2026-07-23 09:00:54
● 2026-07-27 04:32:44

○A2606:4700:3033::6815:5842026-02-15 → 2026-02-15 · 4 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
○ 2026-07-23 09:00:54
○ 2026-07-27 04:32:44

○A2606:4700:3033::ac43:857b2026-02-15 → 2026-02-15 · 4 obs

○ 2017-03-24 13:10:38
● 2026-02-15 19:33:44
○ 2026-07-23 09:00:54
○ 2026-07-27 04:32:44

●A2606:4700:3035::ac43:857b2026-07-23 → 2026-07-27 · 3 obs

○ 2026-02-15 19:33:44
● 2026-07-23 09:00:54
● 2026-07-27 04:32:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
certref.com	chris.ns.cloudflare.com, yolanda.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.85

NS records: chris.ns.cloudflare.com, yolanda.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certref.com (unsigned zone)

⏱️ Timing

Total: 145ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.133.123, 104.21.5.132`
AAAA	2	`2606:4700:3032::6815:584, 2606:4700:3035::ac43:857b`
NS	2	`chris.ns.cloudflare.com, yolanda.ns.cloudflare.com`
MX	6	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`chris.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

certref.com resolves to four IP addresses: 104.21.5.132, 172.67.133.123, 2606:4700:3032::6815:584 and 2606:4700:3035::ac43:857b.

Among the host names that share IP numbers with certref.com are khmersoft.net, kinkts.com, bichitto.com.br and two others.

Name Servers

Two name servers handle the delegation for certref.com: chris.ns.cloudflare.com and yolanda.ns.cloudflare.com.

certref.com has the same name server delegation as a number of other domains, such as brictly.com, mqrpayment.com, ubear.com.au and two more.

certref.com shares at least some of its name servers with other domains, including 0511952912324.workers.dev, fivensonstudios.com, chaophrayaprincesscruise.com and two others.

These name servers are frequently seen alongside the name servers syeef.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

chris.ns.cloudflare.com resolves to 108.162.193.85, 172.64.33.85 and 173.245.59.85 among others, with 3 other IP addresses in total.

yolanda.ns.cloudflare.com resolves to 108.162.192.241, 172.64.32.241 and 173.245.58.241 among others, with 3 other IP addresses in total.

Mail Servers

certref.com is handled by 6 mail servers: aspmx.l.google.com, b6y5ui2573ukq76kqgeveg64q5dmksel6takdzjbjhy6zhyikg7a.mx-verification.google.com, alt1.aspmx.l.google.com and 3 other.

certref.com shares at least some of its mail servers with other domains — for example lakeforestbanks.com, ignisproducts.com, ns500699.ns500693.ns500693.ns500699.ns500693.ns500693.ns500699.ns500699.ns500693.ns500588.ns500699.ns500699.ns500683.ns500693.ns500632.ns500110.dtrkdll.com and two more.

These mail servers tend to be used in conjunction with alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and two additional mail servers.

Hosts with two IP numbers each:

aspmx.l.google.com resolves to two addresses: 192.178.155.26 and 2607:f8b0:4004:c1b::1b.

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

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

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::1a.