doctorsim.com - dns.ninja

`doctorsim.com`

DNSSEC	⚠️ Not signed
A	2606:4700:10::6814:803^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:10::6814:903^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.20.8.3^{Cloudflare104.20.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.20.9.3^{Cloudflare104.20.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amit.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amit.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amit.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amit.ns.cloudflare.com`
		A	108.162.193.63^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amit.ns.cloudflare.com`
		A	172.64.33.63^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amit.ns.cloudflare.com`
		A	173.245.59.63^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amit.ns.cloudflare.com`
NS	`elle.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a6e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elle.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elle.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elle.ns.cloudflare.com`
		A	108.162.192.110^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elle.ns.cloudflare.com`
		A	172.64.32.110^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elle.ns.cloudflare.com`
		A	173.245.58.110^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elle.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.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::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.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	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`apple-domain-verification=x7iwda9QveRWrqxWl5iJ1M7IUunXRCYAUOVy_Co7if8`
TXT	`facebook-domain-verification=4z4601nvsln6yzhh7pf3svkn4wesy7`
TXT	`gd3c7dk6ghqpbv9k8r1dg9rve8`
TXT	`google-site-verification=Z8udX3k1LzLqjG6omxoQGXlFMLR7I5y8wGXO2QHV5F4`
TXT	`google-site-verification=iMebb3lODP4usZjNI6vOBNi6pvuPAVV3880NT9RfM34`
TXT	`v=spf1 include:customeriomail.com include:mail.zendesk.com include:_spf.googl...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.20.8.3, 104.20.9.3
		IPv6 hints	2606:4700:10::6814:803, 2606:4700:10::6814:903
SOA	`amit.ns.cloudflare.com`dns@cloudflare.com serial=2407284376

`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=1783156181

rank #240218 globally
rank #103441 in the tld
WOT: UNKNOWN (64/100)
📈 Tranco rank: #132,237

Subdomains

img2.doctorsim.com

www.doctorsim.com

blog.doctorsim.com

images.doctorsim.com

images0.doctorsim.com

email.doctorsim.com

Same first word

doctorsim.com

doctorsim.es

doctorsim.net

doctorsim.io

doctorsim.com.mx

doctorsim.it

doctorsim.de

doctorsim.co

doctorsim.cl

doctorsim.reviews

doctorsim.org

doctorsim.us

doctorsim.fr

Similar names

DNS History

17 records (11 active, 6 former)

●NSamit.ns.cloudflare.com2026-03-29 → 2026-07-04 · 3 obs

○ 2019-07-18 06:23:24
● 2026-03-29 00:02:56
● 2026-07-04 09:12:12

●NSelle.ns.cloudflare.com2026-03-29 → 2026-07-04 · 3 obs

○ 2019-07-18 06:23:24
● 2026-03-29 00:02:56
● 2026-07-04 09:12:12

○NSns-1232.awsdns-26.org2015-08-21 → 2019-07-18 · 4 obs

● 2015-08-21 09:28:20
● 2019-07-18 06:23:24
○ 2026-03-29 00:02:56
○ 2026-07-04 09:12:12

○NSns-1628.awsdns-11.co.uk2015-08-21 → 2019-07-18 · 4 obs

● 2015-08-21 09:28:20
● 2019-07-18 06:23:24
○ 2026-03-29 00:02:56
○ 2026-07-04 09:12:12

○NSns-276.awsdns-34.com2015-08-21 → 2019-07-18 · 4 obs

● 2015-08-21 09:28:20
● 2019-07-18 06:23:24
○ 2026-03-29 00:02:56
○ 2026-07-04 09:12:12

○NSns-960.awsdns-56.net2015-08-21 → 2019-07-18 · 4 obs

● 2015-08-21 09:28:20
● 2019-07-18 06:23:24
○ 2026-03-29 00:02:56
○ 2026-07-04 09:12:12

●MXalt1.aspmx.l.google.com2015-08-21 → 2026-07-04 · 2 obs

● 2015-08-21 09:28:20
● 2026-07-04 09:12:12

●MXalt2.aspmx.l.google.com2015-08-21 → 2026-07-04 · 2 obs

● 2015-08-21 09:28:20
● 2026-07-04 09:12:12

●MXalt3.aspmx.l.google.com2015-08-21 → 2026-07-04 · 2 obs

● 2015-08-21 09:28:20
● 2026-07-04 09:12:12

●MXalt4.aspmx.l.google.com2015-08-21 → 2026-07-04 · 2 obs

● 2015-08-21 09:28:20
● 2026-07-04 09:12:12

●MXaspmx.l.google.com2015-08-21 → 2026-07-04 · 2 obs

● 2015-08-21 09:28:20
● 2026-07-04 09:12:12

●A104.20.8.32026-03-29 → 2026-07-04 · 3 obs

○ 2019-07-18 06:23:24
● 2026-03-29 00:02:56
● 2026-07-04 09:12:12

●A104.20.9.32026-03-29 → 2026-07-04 · 3 obs

○ 2019-07-18 06:23:24
● 2026-03-29 00:02:56
● 2026-07-04 09:12:12

●A2606:4700:10::6814:8032026-03-29 → 2026-07-04 · 3 obs

○ 2019-07-18 06:23:24
● 2026-03-29 00:02:56
● 2026-07-04 09:12:12

●A2606:4700:10::6814:9032026-03-29 → 2026-07-04 · 3 obs

○ 2019-07-18 06:23:24
● 2026-03-29 00:02:56
● 2026-07-04 09:12:12

○A54.171.48.682015-08-21 → 2015-11-04 · 4 obs

● 2015-08-21 09:28:20
● 2015-11-04 11:49:16
○ 2016-01-25 07:04:02
○ 2026-07-04 09:12:12

○A54.77.232.202016-01-25 → 2019-07-18 · 5 obs

○ 2015-11-04 11:49:16
● 2016-01-25 07:04:02
● 2019-07-18 06:23:24
○ 2026-03-29 00:02:56
○ 2026-07-04 09:12:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net, h.gtld-servers.net...	-
doctorsim.com	elle.ns.cloudflare.com, amit.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.63

NS records: elle.ns.cloudflare.com, amit.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 304ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.20.8.3, 104.20.9.3`
AAAA	2	`2606:4700:10::6814:903, 2606:4700:10::6814:803`
NS	2	`amit.ns.cloudflare.com, elle.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	6	`apple-domain-verification=x7iwda9QveRWrq, facebook-domain-verification=4z4601nvsln...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amit.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

doctorsim.com is a parent domain; its children include img2.doctorsim.com, www.doctorsim.com, blog.doctorsim.com, images.doctorsim.com, images0.doctorsim.com and a few other host names.

IP Addresses

doctorsim.com has four IP addresses: 104.20.8.3, 104.20.9.3, 2606:4700:10::6814:803 and 2606:4700:10::6814:903.

img2.doctorsim.com, www.doctorsim.com, blog.doctorsim.com plus two other host names have IP numbers in common with doctorsim.com.

Name Servers

DNS delegation for doctorsim.com points to two name servers: amit.ns.cloudflare.com and elle.ns.cloudflare.com.

The name server configuration of doctorsim.com is shared with other domains, for instance eurocentres.co.uk, a-chau.net, eurocentres.com and two others.

doctorsim.com partially shares its NS delegation with several other domains, including 530773.com, adsello.com, cardiffstudents.com and two others.

These name servers regularly co-occur with the name servers raegan.ns.cloudflare.com, clyde.ns.cloudflare.com and sam.ns.cloudflare.com.

Hosts with 6 IP addresses each:

amit.ns.cloudflare.com has IP addresses 108.162.193.63, 172.64.33.63 and 173.245.59.63, plus 3 other.

elle.ns.cloudflare.com has IP addresses 108.162.192.110, 172.64.32.110 and 173.245.58.110, plus 3 other.

Mail Servers

Mail for doctorsim.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by doctorsim.com are shared with other domains: ns500731.ns500731.ns500731.ns500671.ns500704.ns500688.ns500671.lusty(0x736c7574)z.com, ns500698.ns500698.ns500759.ns500758.ns500698.ns500698.ns500698.ns500698.ns500698.ns500698.ns500576.ns500576.ns500686.ns500619.ns500619.trackreceptor.com, ns500758.ns500759.ns500759.ns500698.ns500698.ns500758.ns500735.ns500698.ns500735.ns500736.ns500735.ns500736.ns500619.ns500576.ns500576.ns500576.trackreceptor.com and two others among them.

These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com has two IP addresses: 142.251.163.26 and 2607:f8b0:4004:c23::1b.

alt1.aspmx.l.google.com has two IP addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com has two IP addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com has two IP addresses: 172.253.157.26 and 2a00:1450:400c:c23::1a.