cal.com - dns.ninja

`cal.com`

DNSSEC	⚠️ Not signed
A	2606:4700::6812:3e^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:13e^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.0.62^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.1.62^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carter.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b50^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carter.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c150^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carter.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2150^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carter.ns.cloudflare.com`
		A	108.162.193.80^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carter.ns.cloudflare.com`
		A	172.64.33.80^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carter.ns.cloudflare.com`
		A	173.245.59.80^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carter.ns.cloudflare.com`
NS	`linda.ns.cloudflare.com`
		A	2606:4700:50::adf5:3afa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`linda.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`linda.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`linda.ns.cloudflare.com`
		A	108.162.192.250^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`linda.ns.cloudflare.com`
		A	172.64.32.250^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`linda.ns.cloudflare.com`
		A	173.245.58.250^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`linda.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c29::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f26.1e100.net`
		A	142.250.31.26^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-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	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.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::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`MS=ms14963960`
TXT	`MS=ms52513678`
TXT	`MS=ms56097149`
TXT	`MS=ms98316148`
TXT	`WP41PVdUGcSPtY_ZzVehPm73J0E`
TXT	`apple-domain-verification=BWqXqkqcByIoJVFD`
TXT	`asv=4a2ed4b7d84c58fa042be983b359aea7`
TXT	`cloudflare_dashboard_sso=fe7359c438ef1489671b4153ae275615`
TXT	`google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY`
TXT	`hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj`
TXT	`openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh`
TXT	`v=spf1 include:_spf.google.com include:sendgrid.net -all`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.18.0.62, 104.18.1.62
		IPv6 hints	2606:4700::6812:3e, 2606:4700::6812:13e
SOA	`carter.ns.cloudflare.com`dns@cloudflare.com serial=2411439840

`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=1785962384

rank #2293 globally
rank #1207 in the tld
📈 Tranco rank: #9,682

Subdomains

deel.cal.com

mcp-chatgpt.cal.com

roundsso.cal.com

blossom-pediatrics-pc.cal.com

adkins-music-lessons.cal.com

expresso-studio.cal.com

www.cal.com

refer.cal.com

app.cal.com

Same first word

cal.to

cal.new

cal.vc

cal.vin

cal.lt

cal.pl

cal.tw

cal.now

cal.ai

cal

cal.k12.or.us

cal.cat

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cal.systems

cal.k12.ia.us

cal.org.ar

cal.me

cal.services

cal.org.il

cal.direct

cal.kr

cal.md

cal.lu

cal.net

cal.wiki

cal.io

cal.tel

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cal.et

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cal.kiwi

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cal.link

cal.team

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cal.sch.ly

cal.sg

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cal.ee

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cal.md.us

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cal.events

cal.co.il

cal.casa

cal.lv

cal.be

cal.cc

cal.bio

cal.com.ng

cal.codes

cal.com.sg

cal.id

cal.or.at

cal.ru

cal.tours

cal.school

cal.info

cal.world

cal.eu

cal.com.my

cal.photos

cal.fitness

cal.ae

cal.fr

cal.is

cal.mobi

cal.la

cal.com

cal.gr

cal.diy

cal.fi

cal.gov.in

cal.care

cal.bot

cal.mail.pl

cal.gov.sg

cal.nyc

cal.deals

cal.run

cal.aero

cal.lk

cal.at

cal.org.nz

cal.dk

Similar names

cla.cu

alc.ro

lac.lv

acl.com.br

cla.it

alc.cc

lca.tools

lca.bg

lac.city

cla.be

alc.it

acl.info

alc.co

acl.cl

alc.nyc

acl.co.in

acl.or.jp

acl.com.pk

alc.us

cla.info

cla.com.cn

lac.org.cn

alc.es

lac.org.na

lac.se

lac.pl

cla.ae

acl.org.uk

acl.re

lca.at

acl.sa

cla.my

lca.edu

acl.mx

lca.africa

acl.moe

lac.eng.br

lac.hr

lca.tn

alc.com.au

lac.com.mx

acl.eu

lac.com.ar

lca.rs

cla.ru

lac.as

acl.gov

alc.co.il

acl.com.sa

lca.cz

cla.ws

lac.com.pt

cla.us

lca.ro

lac.edu.cv

lac.kr

lac.us

cla.fr

lca.lviv.ua

alc.im

lca.be

lac.com.uy

alc.co.jp

lac.im

alc.nl

lca.ooo

lca.net.au

lac.company

lac.or.kr

acl.biz

acl.tech

cla.at

cla.com.my

acl.com.mx

acl.expert

alc.sakura.ne.jp

lac.cl

alc.edu

lac.nl

alc.be

lac.eu

DNS History

20 records (11 active, 9 former)

●NScarter.ns.cloudflare.com2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

●NSlinda.ns.cloudflare.com2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

○NSns01.cashparking.com2016-01-03 → 2016-02-14 · 5 obs

○ 2015-12-19 11:57:00
● 2016-01-03 22:27:56
● 2016-02-14 10:21:00
○ 2016-03-13 06:20:08
○ 2026-08-05 20:50:18

○NSns37.domaincontrol.com2016-03-13 → 2017-01-11 · 5 obs

○ 2016-02-14 10:21:00
● 2016-03-13 06:20:08
● 2017-01-11 11:04:40
○ 2026-02-24 19:29:54
○ 2026-08-05 20:50:18

○NSns38.domaincontrol.com2016-03-13 → 2017-01-11 · 5 obs

○ 2016-02-14 10:21:00
● 2016-03-13 06:20:08
● 2017-01-11 11:04:40
○ 2026-02-24 19:29:54
○ 2026-08-05 20:50:18

○NSns43.domaincontrol.com2015-07-23 → 2015-12-19 · 4 obs

● 2015-07-23 10:15:18
● 2015-12-19 11:57:00
○ 2016-01-03 22:27:56
○ 2026-08-05 20:50:18

○NSns44.domaincontrol.com2015-07-23 → 2015-12-19 · 4 obs

● 2015-07-23 10:15:18
● 2015-12-19 11:57:00
○ 2016-01-03 22:27:56
○ 2026-08-05 20:50:18

●MXalt1.aspmx.l.google.com2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

●MXalt2.aspmx.l.google.com2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

●MXalt3.aspmx.l.google.com2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

●MXalt4.aspmx.l.google.com2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

●MXaspmx.l.google.com2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

○MXmailstore1.secureserver.net2015-07-23 → 2017-01-11 · 4 obs

● 2015-07-23 10:15:18
● 2017-01-11 11:04:40
○ 2026-02-24 19:29:54
○ 2026-08-05 20:50:18

○MXsmtp.secureserver.net2015-07-23 → 2017-01-11 · 4 obs

● 2015-07-23 10:15:18
● 2017-01-11 11:04:40
○ 2026-02-24 19:29:54
○ 2026-08-05 20:50:18

●A104.18.0.622026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

●A104.18.1.622026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

○A184.168.221.962016-01-03 → 2016-02-14 · 5 obs

○ 2015-12-19 11:57:00
● 2016-01-03 22:27:56
● 2016-02-14 10:21:00
○ 2016-03-13 06:20:08
○ 2026-08-05 20:50:18

○A208.109.47.1282015-07-23 → 2017-01-11 · 8 obs

● 2015-07-23 10:15:18
● 2015-12-19 11:57:00
○ 2016-01-03 22:27:56
○ 2016-02-14 10:21:00
● 2016-03-13 06:20:08
● 2017-01-11 11:04:40
○ 2026-02-24 19:29:54
○ 2026-08-05 20:50:18

●A2606:4700::6812:13e2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

●A2606:4700::6812:3e2026-02-24 → 2026-08-05 · 3 obs

○ 2017-01-11 11:04:40
● 2026-02-24 19:29:54
● 2026-08-05 20:50:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cal.com	linda.ns.cloudflare.com, carter.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.80

NS records: linda.ns.cloudflare.com, carter.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cal.com (unsigned zone)

⏱️ Timing

Total: 345ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.18.1.62, 104.18.0.62`
AAAA	2	`2606:4700::6812:3e, 2606:4700::6812:13e`
NS	2	`carter.ns.cloudflare.com, linda.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	12	`MS=ms14963960, MS=ms52513678...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`carter.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

Among the subdomains of cal.com are deel.cal.com, mcp-chatgpt.cal.com, roundsso.cal.com, blossom-pediatrics-pc.cal.com, adkins-music-lessons.cal.com and a few other host names.

IP Addresses

cal.com points to the four IP addresses 104.18.0.62, 104.18.1.62, 2606:4700::6812:3e and 2606:4700::6812:13e.

Among the host names that share IP numbers with cal.com are app.cal.com, www.themillenniumschool-dubai.com, waf-migration-status-staging.managed-rules.cfdata.org and two others.

Name Servers

The NS records for cal.com delegate to carter.ns.cloudflare.com and linda.ns.cloudflare.com.

cal.com has the same name server delegation as a number of other domains, such as amkpc.org.sg, biotus.ro, hyrontech.com and two more.

There is at least partial name server overlap between cal.com and other domains — damascushouse.ca, caishuizhibo.com, xelecey.com and two more among them.

The name servers sara.ns.cloudflare.com, laura.ns.cloudflare.com and trevor.ns.cloudflare.com are often found in combination with these name servers.

Host names resolving to 6 IP numbers:

carter.ns.cloudflare.com maps to 108.162.193.80, 172.64.33.80, 173.245.59.80 and 3 additional IP addresses.

linda.ns.cloudflare.com maps to 108.162.192.250, 172.64.32.250, 173.245.58.250 and 3 additional IP addresses.

Mail Servers

cal.com has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

cal.com shares at least some of its mail servers with other domains — for example amandaleequick.com, leichtny.com, ns500759.ns500698.ns500758.ns500759.ns500735.ns500735.ns500698.ns500698.ns500708.ns500698.ns500576.ns500708.ns500698.ns500698.ns500619.ns500619.ns500619.trackreceptor.com and two more.

It is common for these mail servers to co-occur with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com as mail servers.

Hosts with two IP numbers each:

The A records for aspmx.l.google.com return 142.250.31.26 and 2607:f8b0:4004:c29::1a.

The A records for alt1.aspmx.l.google.com return 108.177.123.26 and 2800:3f0:4003:c0f::1a.

The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1a.

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1b.