simtec.org - dns.ninja

simtec.org

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:d5cfπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3035::6815:4330πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.67.48Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.213.207πŸ‡ΊπŸ‡Έ Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NSalice.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a3cπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalice.ns.cloudflare.com
A2803:f800:50::6ca2:c03cπŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRalice.ns.cloudflare.com
A2a06:98c1:50::ac40:203cπŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRalice.ns.cloudflare.com
A108.162.192.60πŸ‡ΊπŸ‡Έ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalice.ns.cloudflare.com
A172.64.32.60πŸ‡ΊπŸ‡Έ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalice.ns.cloudflare.com
A173.245.58.60πŸ‡ΊπŸ‡Έ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRalice.ns.cloudflare.com
NSpablo.ns.cloudflare.com
A2606:4700:58::adf5:3bdcπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpablo.ns.cloudflare.com
A2803:f800:50::6ca2:c1dcπŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRpablo.ns.cloudflare.com
A2a06:98c1:50::ac40:21dcπŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRpablo.ns.cloudflare.com
A108.162.193.220πŸ‡ΊπŸ‡Έ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpablo.ns.cloudflare.com
A172.64.33.220πŸ‡ΊπŸ‡Έ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpablo.ns.cloudflare.com
A173.245.59.220πŸ‡ΊπŸ‡Έ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRpablo.ns.cloudflare.com
MX_dc-mx.40c5c1249c2e.simtec.org ⭐
A109.234.165.74πŸ‡«πŸ‡· O2SWITCH109.234.164.0/22
PTR109-234-165-74.reverse.odns.fr
TXTv=spf1 ip4:109.234.165.74 +a +mx +ip4:109.234.163.0/24 ~all
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.67.48, 172.67.213.207
IPv6 hints2606:4700:3030::ac43:d5cf, 2606:4700:3035::6815:4330
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=163, name=cloudflare-ech.com
SOAalice.ns.cloudflare.comdns@cloudflare.com serial=2406871304

org

DNSSECπŸ”’ Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1781595439
WOT: SAFE (63/100)

Subdomains

Same first word

Similar names

DNS History

19 records (7 active, 12 former)

20162017201820192020202120222023202420252026NSalice.ns.cloudflare.compablo.ns.cloudflare.comdns12.ovh.netns1.o2switch.netns12.ovh.netns2.o2switch.netMX_dc-mx.40c5c1249c2e.simtec.orgmail.simtec.orgsimtec-org.mail.protection.outlook.comA104.21.67.48172.67.213.2072606:4700:3030::ac43:d5cf2606:4700:3035::6815:4330188.114.96.0188.114.97.0213.186.33.162a06:98c1:3120::2a06:98c1:3121::78.40.11.68
●NSalice.ns.cloudflare.com2026-03-07 β†’ 2026-06-16 Β· 3 obs
β—‹ 2021-02-09 05:41:04
● 2026-03-07 14:31:12
● 2026-06-16 07:59:02
β—‹NSdns12.ovh.net2015-05-29 β†’ 2021-02-09 Β· 4 obs
● 2015-05-29 00:03:20
● 2021-02-09 05:41:04
β—‹ 2026-03-07 14:31:12
β—‹ 2026-06-16 07:59:02
β—‹NSns1.o2switch.net2026-03-07 β†’ 2026-06-16 Β· 2 obs
β—‹ 2026-03-07 14:31:12
β—‹ 2026-06-16 07:59:02
β—‹NSns12.ovh.net2015-05-29 β†’ 2021-02-09 Β· 4 obs
● 2015-05-29 00:03:20
● 2021-02-09 05:41:04
β—‹ 2026-03-07 14:31:12
β—‹ 2026-06-16 07:59:02
β—‹NSns2.o2switch.net2026-03-07 β†’ 2026-06-16 Β· 2 obs
β—‹ 2026-03-07 14:31:12
β—‹ 2026-06-16 07:59:02
●NSpablo.ns.cloudflare.com2026-03-07 β†’ 2026-06-16 Β· 3 obs
β—‹ 2021-02-09 05:41:04
● 2026-03-07 14:31:12
● 2026-06-16 07:59:02
●MX_dc-mx.40c5c1249c2e.simtec.org2026-03-07 β†’ 2026-06-16 Β· 3 obs
β—‹ 2021-02-09 05:41:04
● 2026-03-07 14:31:12
● 2026-06-16 07:59:02
β—‹MXmail.simtec.org2026-03-07 β†’ 2026-06-16 Β· 2 obs
β—‹ 2026-03-07 14:31:12
β—‹ 2026-06-16 07:59:02
β—‹MXsimtec-org.mail.protection.outlook.com2015-05-29 β†’ 2021-02-09 Β· 4 obs
● 2015-05-29 00:03:20
● 2021-02-09 05:41:04
β—‹ 2026-03-07 14:31:12
β—‹ 2026-06-16 07:59:02
●A104.21.67.482026-03-07 β†’ 2026-06-16 Β· 9 obs
β—‹ 2021-02-09 05:41:04
● 2026-03-07 14:31:12
● 2026-04-01 15:13:24
β—‹ 2026-04-09 12:14:08
● 2026-04-25 00:14:26
● 2026-04-30 01:38:42
β—‹ 2026-05-06 18:58:08
● 2026-05-20 18:36:36
● 2026-06-16 07:59:02
●A172.67.213.2072026-03-07 β†’ 2026-06-16 Β· 9 obs
β—‹ 2021-02-09 05:41:04
● 2026-03-07 14:31:12
● 2026-04-01 15:13:24
β—‹ 2026-04-09 12:14:08
● 2026-04-25 00:14:26
● 2026-04-30 01:38:42
β—‹ 2026-05-06 18:58:08
● 2026-05-20 18:36:36
● 2026-06-16 07:59:02
β—‹A188.114.96.02026-04-09 β†’ 2026-05-06 Β· 7 obs
β—‹ 2026-04-01 15:13:24
● 2026-04-09 12:14:08
β—‹ 2026-04-25 00:14:26
β—‹ 2026-04-30 01:38:42
● 2026-05-06 18:58:08
β—‹ 2026-05-20 18:36:36
β—‹ 2026-06-16 07:59:02
β—‹A188.114.97.02026-04-09 β†’ 2026-05-06 Β· 7 obs
β—‹ 2026-04-01 15:13:24
● 2026-04-09 12:14:08
β—‹ 2026-04-25 00:14:26
β—‹ 2026-04-30 01:38:42
● 2026-05-06 18:58:08
β—‹ 2026-05-20 18:36:36
β—‹ 2026-06-16 07:59:02
β—‹A213.186.33.162015-05-29 β†’ 2021-02-09 Β· 4 obs
● 2015-05-29 00:03:20
● 2021-02-09 05:41:04
β—‹ 2026-03-07 14:31:12
β—‹ 2026-06-16 07:59:02
●A2606:4700:3030::ac43:d5cf2026-03-07 β†’ 2026-06-16 Β· 9 obs
β—‹ 2021-02-09 05:41:04
● 2026-03-07 14:31:12
● 2026-04-01 15:13:24
β—‹ 2026-04-09 12:14:08
● 2026-04-25 00:14:26
● 2026-04-30 01:38:42
β—‹ 2026-05-06 18:58:08
● 2026-05-20 18:36:36
● 2026-06-16 07:59:02
●A2606:4700:3035::6815:43302026-03-07 β†’ 2026-06-16 Β· 9 obs
β—‹ 2021-02-09 05:41:04
● 2026-03-07 14:31:12
● 2026-04-01 15:13:24
β—‹ 2026-04-09 12:14:08
● 2026-04-25 00:14:26
● 2026-04-30 01:38:42
β—‹ 2026-05-06 18:58:08
● 2026-05-20 18:36:36
● 2026-06-16 07:59:02
β—‹A2a06:98c1:3120::2026-04-09 β†’ 2026-05-06 Β· 7 obs
β—‹ 2026-04-01 15:13:24
● 2026-04-09 12:14:08
β—‹ 2026-04-25 00:14:26
β—‹ 2026-04-30 01:38:42
● 2026-05-06 18:58:08
β—‹ 2026-05-20 18:36:36
β—‹ 2026-06-16 07:59:02
β—‹A2a06:98c1:3121::2026-04-09 β†’ 2026-05-06 Β· 7 obs
β—‹ 2026-04-01 15:13:24
● 2026-04-09 12:14:08
β—‹ 2026-04-25 00:14:26
β—‹ 2026-04-30 01:38:42
● 2026-05-06 18:58:08
β—‹ 2026-05-20 18:36:36
β—‹ 2026-06-16 07:59:02
β—‹A78.40.11.682026-03-07 β†’ 2026-06-16 Β· 2 obs
β—‹ 2026-03-07 14:31:12
β—‹ 2026-06-16 07:59:02

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org-
simtec.orgpablo.ns.cloudflare.com, alice.ns.cloudflare.com-

βœ… Authoritative Response

Server:173.245.59.220

NS records: pablo.ns.cloudflare.com, alice.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simtec.org (unsigned zone)

⏱️ Timing

Total: 1013ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2172.67.213.207, 104.21.67.48
AAAA22606:4700:3030::ac43:d5cf, 2606:4700:3035::6815:4330
NS2alice.ns.cloudflare.com, pablo.ns.cloudflare.com
MX1_dc-mx.40c5c1249c2e.simtec.org (pri: 0)
TXT1v=spf1 ip4:109.234.165.74 +a +mx +ip4:10
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1alice.ns.cloudflare.com dns.cloudflare.c

Analysis

Hierarchy

The parent domain of www.simtec.org and mail.simtec.org is simtec.org.

IP Addresses

simtec.org resolves to four IP addresses: 104.21.67.48, 172.67.213.207, 2606:4700:3030::ac43:d5cf and 2606:4700:3035::6815:4330.

Among the host names that share IP numbers with simtec.org are eidohealthcare.com, brinyirishpub.com, puresolutionslab.se and two others.

Name Servers

simtec.org has two authoritative name servers β€” alice.ns.cloudflare.com and pablo.ns.cloudflare.com.

simtec.org has the same name server delegation as a number of other domains, such as santenews.net, ficc2019.com, king-chess.fr and two more.

simtec.org has at least partial name server overlap with other domains, such as czdcasdq.cyou, offerupnow.com, lisboa7auh5api.work and two others.

It is common to see these name servers used together with name servers donna.ns.cloudflare.com and gina.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

alice.ns.cloudflare.com points to 108.162.192.60, 172.64.32.60, 173.245.58.60 and 3 other IP addresses.

pablo.ns.cloudflare.com points to 108.162.193.220, 172.64.33.220, 173.245.59.220 and 3 other IP addresses.

Mail Servers

simtec.org routes its mail through a single mail server, _dc-mx.40c5c1249c2e.simtec.org.

_dc-mx.40c5c1249c2e.simtec.org points to one IP number β€” 109.234.165.74.