`certsguru.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:916c^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:417f^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.65.127^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.145.108^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`paul.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b87^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c187^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`paul.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2187^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`paul.ns.cloudflare.com`
		A	108.162.193.135^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	172.64.33.135^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
		A	173.245.59.135^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`paul.ns.cloudflare.com`
NS	`zoe.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a95^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zoe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c095^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zoe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2095^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zoe.ns.cloudflare.com`
		A	108.162.192.149^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zoe.ns.cloudflare.com`
		A	172.64.32.149^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zoe.ns.cloudflare.com`
		A	173.245.58.149^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zoe.ns.cloudflare.com`
MX	`_dc-mx.ca71603c550f.certsguru.com` ⭐
		A	63.250.40.32^{🇺🇸 NAMCHEAP-PH63.250.40.0/24}
TXT	`v=spf1 a mx include:websitewelcome.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.65.127, 172.67.145.108
		IPv6	2606:4700:3030::ac43:916c, 2606:4700:3033::6815:417f
SOA	`paul.ns.cloudflare.com`dns@cloudflare.com serial=2397464431

`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=1771291435

Previously MX for

certsguru.com

Same first word

certsguru.com

DNS History

25 records (7 active, 18 former)

○NSns1.above.com2017-02-14 → 2017-02-14 · 4 obs

○ 2016-06-20 16:22:16
● 2017-02-14 19:58:08
○ 2020-02-17 21:41:26
○ 2026-02-27 06:03:56

○NSns11025.ztomy.com2016-06-20 → 2016-06-20 · 4 obs

○ 2016-02-26 06:38:32
● 2016-06-20 16:22:16
○ 2017-02-14 19:58:08
○ 2026-02-27 06:03:56

○NSns1mpz.name.com2020-02-17 → 2020-02-17 · 4 obs

○ 2017-02-14 19:58:08
● 2020-02-17 21:41:26
○ 2026-02-27 04:11:04
○ 2026-02-27 06:03:56

○NSns2.above.com2017-02-14 → 2017-02-14 · 4 obs

○ 2016-06-20 16:22:16
● 2017-02-14 19:58:08
○ 2020-02-17 21:41:26
○ 2026-02-27 06:03:56

○NSns21025.ztomy.com2016-06-20 → 2016-06-20 · 4 obs

○ 2016-02-26 06:38:32
● 2016-06-20 16:22:16
○ 2017-02-14 19:58:08
○ 2026-02-27 06:03:56

○NSns2nsw.name.com2020-02-17 → 2020-02-17 · 4 obs

○ 2017-02-14 19:58:08
● 2020-02-17 21:41:26
○ 2026-02-27 04:11:04
○ 2026-02-27 06:03:56

○NSns3dgr.name.com2020-02-17 → 2020-02-17 · 4 obs

○ 2017-02-14 19:58:08
● 2020-02-17 21:41:26
○ 2026-02-27 04:11:04
○ 2026-02-27 06:03:56

○NSns4dfh.name.com2020-02-17 → 2020-02-17 · 4 obs

○ 2017-02-14 19:58:08
● 2020-02-17 21:41:26
○ 2026-02-27 04:11:04
○ 2026-02-27 06:03:56

○NSns931.websitewelcome.com2015-08-04 → 2016-02-26 · 4 obs

● 2015-08-04 10:44:36
● 2016-02-26 06:38:32
○ 2016-06-20 16:22:16
○ 2026-02-27 06:03:56

○NSns932.websitewelcome.com2015-08-04 → 2016-02-26 · 4 obs

● 2015-08-04 10:44:36
● 2016-02-26 06:38:32
○ 2016-06-20 16:22:16
○ 2026-02-27 06:03:56

●NSpaul.ns.cloudflare.com2026-02-27 → 2026-02-27 · 3 obs

○ 2020-02-17 21:41:26
● 2026-02-27 04:11:04
● 2026-02-27 06:03:56

●NSzoe.ns.cloudflare.com2026-02-27 → 2026-02-27 · 3 obs

○ 2020-02-17 21:41:26
● 2026-02-27 04:11:04
● 2026-02-27 06:03:56

●MX_dc-mx.ca71603c550f.certsguru.com2026-02-27 → 2026-02-27 · 3 obs

○ 2020-02-17 21:41:26
● 2026-02-27 04:11:04
● 2026-02-27 06:03:56

○MXcertsguru.com2015-08-04 → 2016-02-26 · 4 obs

● 2015-08-04 10:44:36
● 2016-02-26 06:38:32
○ 2016-06-20 16:22:16
○ 2026-02-27 06:03:56

○MXmx92.m1bp.com2017-02-14 → 2017-02-14 · 4 obs

○ 2016-06-20 16:22:16
● 2017-02-14 19:58:08
○ 2020-02-17 21:41:26
○ 2026-02-27 06:03:56

○MXmx92.mb5p.com2017-02-14 → 2017-02-14 · 4 obs

○ 2016-06-20 16:22:16
● 2017-02-14 19:58:08
○ 2020-02-17 21:41:26
○ 2026-02-27 06:03:56

●A104.21.65.1272026-02-27 → 2026-02-27 · 3 obs

○ 2020-02-17 21:41:26
● 2026-02-27 04:11:04
● 2026-02-27 06:03:56

○A141.8.226.192016-06-20 → 2016-06-20 · 4 obs

○ 2016-02-26 06:38:32
● 2016-06-20 16:22:16
○ 2017-02-14 19:58:08
○ 2026-02-27 06:03:56

●A172.67.145.1082026-02-27 → 2026-02-27 · 3 obs

○ 2020-02-17 21:41:26
● 2026-02-27 04:11:04
● 2026-02-27 06:03:56

○A192.184.12.622017-02-14 → 2017-02-14 · 4 obs

○ 2016-06-20 16:22:16
● 2017-02-14 19:58:08
○ 2020-02-17 21:41:26
○ 2026-02-27 06:03:56

○A192.185.194.1152015-08-04 → 2016-02-26 · 4 obs

● 2015-08-04 10:44:36
● 2016-02-26 06:38:32
○ 2016-06-20 16:22:16
○ 2026-02-27 06:03:56

●A2606:4700:3030::ac43:916c2026-02-27 → 2026-02-27 · 3 obs

○ 2020-02-17 21:41:26
● 2026-02-27 04:11:04
● 2026-02-27 06:03:56

●A2606:4700:3033::6815:417f2026-02-27 → 2026-02-27 · 3 obs

○ 2020-02-17 21:41:26
● 2026-02-27 04:11:04
● 2026-02-27 06:03:56

○A70.32.1.322017-02-14 → 2017-02-14 · 4 obs

○ 2016-06-20 16:22:16
● 2017-02-14 19:58:08
○ 2026-02-27 04:11:04
○ 2026-02-27 06:03:56

○A91.195.240.942020-02-17 → 2020-02-17 · 4 obs

○ 2017-02-14 19:58:08
● 2020-02-17 21:41:26
○ 2026-02-27 04:11:04
○ 2026-02-27 06:03:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
certsguru.com	paul.ns.cloudflare.com, zoe.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.193.135

NS records: paul.ns.cloudflare.com, zoe.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certsguru.com (unsigned zone)

⏱️ Timing

Total: 339ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.65.127, 172.67.145.108`
AAAA	2	`2606:4700:3030::ac43:916c, 2606:4700:3033::6815:417f`
NS	2	`paul.ns.cloudflare.com, zoe.ns.cloudflare.com`
MX	1	`_dc-mx.ca71603c550f.certsguru.com (pri:`
TXT	1	`v=spf1 a mx include:websitewelcome.com ~`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`paul.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

AI analysis

certsguru.com maps to four IP numbers: 2606:4700:3030::ac43:916c, 2606:4700:3033::6815:417f, 104.21.65.127 and 172.67.145.108.

Other host names, for instance tesd-1382828.festival-otvinta.ru, hhxsw.cc, tesd-32268.festival-otvinta.ru, retabstore.com and damoa.org share IP numbers with certsguru.com.

Two name servers paul.ns.cloudflare.com and zoe.ns.cloudflare.com handle delegation for certsguru.com.

certsguru.com uses the same name server setup as other domains, for example atlashine.com, dumps4less.com, stamatiskritikos.com, liji.ru and room203.org.

certsguru.com partially shares name servers with other domains; examples include 31modal138.com, ruggedpcstore.com, email15online.com, bralady.com.tw and gotbailey.com.

These name servers are often used with the name servers aiden.ns.cloudflare.com and arya.ns.cloudflare.com.

Host names with six IP numbers: paul.ns.cloudflare.com points to: 2606:4700:58::adf5:3b87, 2803:f800:50::6ca2:c187, 2a06:98c1:50::ac40:2187, 108.162.193.135, 172.64.33.135 and 173.245.59.135; zoe.ns.cloudflare.com points to: 2606:4700:50::adf5:3a95, 2803:f800:50::6ca2:c095, 2a06:98c1:50::ac40:2095, 108.162.192.149, 172.64.32.149 and 173.245.58.149.

certsguru.com is handled by a single mail server, _dc-mx.ca71603c550f.certsguru.com.

_dc-mx.ca71603c550f.certsguru.com points to a single IP: 63.250.40.32.

certsguru.com - robtex.com

certsguru.com

com

Previously MX for

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

AI analysis

`certsguru.com`

`com`