`mycalibrationtools.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:190b^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:dd8c^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.25.11^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.140^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`sofia.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3adf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sofia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0df^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sofia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20df^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sofia.ns.cloudflare.com`
		A	108.162.192.223^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sofia.ns.cloudflare.com`
		A	172.64.32.223^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sofia.ns.cloudflare.com`
		A	173.245.58.223^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sofia.ns.cloudflare.com`
NS	`zod.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zod.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`zod.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`zod.ns.cloudflare.com`
		A	108.162.193.250^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zod.ns.cloudflare.com`
		A	172.64.33.250^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zod.ns.cloudflare.com`
		A	173.245.59.250^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`zod.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	2607:f8b0:4004:c0b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f26.1e100.net`
		A	2607:f8b0:4004:c0b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f27.1e100.net`
		A	142.250.31.26^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f26.1e100.net`
		A	142.250.31.27^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f27.1e100.net`
		A	142.251.111.27^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f27.1e100.net`
		A	172.253.63.26^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
TXT	`google-site-verification=1lSLMCAjYmKoUrNeUMzxbFKjGWRC1b0frVcJC14H91c`
TXT	`google-site-verification=9--GBGos1XqM2PV29Beeckj0hrlCrDlPGg54nEP6cQ4`
TXT	`odys-domain-verification=16ac86b34122729a7bc90ef2`
TXT	`protonmail-verification=d4cfb1efbc6d8aa978635123611a62964d5078d3`
TXT	`v=spf1 include:_spf.mail.hostinger.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.25.11, 172.67.221.140
		IPv6	2606:4700:3033::6815:190b, 2606:4700:3037::ac43:dd8c
SOA	`sofia.ns.cloudflare.com`dns@cloudflare.com serial=2398342327

`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=1774702487

Same first word

mycalibrationtools.com

DNS History

11 records (7 active, 4 former)

●NSsofia.ns.cloudflare.com2026-02-17 → 2026-03-28 · 2 obs

● 2026-02-17 17:58:18
● 2026-03-28 13:24:02

●NSzod.ns.cloudflare.com2026-02-17 → 2026-03-28 · 2 obs

● 2026-02-17 17:58:18
● 2026-03-28 13:24:02

●MXsmtp.google.com2026-02-17 → 2026-03-28 · 2 obs

● 2026-02-17 17:58:18
● 2026-03-28 13:24:02

●A104.21.25.112026-02-17 → 2026-03-28 · 5 obs

● 2026-02-17 17:58:18
● 2026-03-02 18:07:00
○ 2026-03-12 20:04:38
● 2026-03-28 13:24:00
● 2026-03-28 13:24:02

●A172.67.221.1402026-02-17 → 2026-03-28 · 5 obs

● 2026-02-17 17:58:18
● 2026-03-02 18:07:00
○ 2026-03-12 20:04:38
● 2026-03-28 13:24:00
● 2026-03-28 13:24:02

○A188.114.96.02026-03-12 → 2026-03-12 · 4 obs

○ 2026-03-02 18:07:00
● 2026-03-12 20:04:38
○ 2026-03-28 13:24:00
○ 2026-03-28 13:24:02

○A188.114.97.02026-03-12 → 2026-03-12 · 4 obs

○ 2026-03-02 18:07:00
● 2026-03-12 20:04:38
○ 2026-03-28 13:24:00
○ 2026-03-28 13:24:02

●A2606:4700:3033::6815:190b2026-02-17 → 2026-03-28 · 5 obs

● 2026-02-17 17:58:18
● 2026-03-02 18:07:00
○ 2026-03-12 20:04:38
● 2026-03-28 13:24:00
● 2026-03-28 13:24:02

●A2606:4700:3037::ac43:dd8c2026-02-17 → 2026-03-28 · 5 obs

● 2026-02-17 17:58:18
● 2026-03-02 18:07:00
○ 2026-03-12 20:04:38
● 2026-03-28 13:24:00
● 2026-03-28 13:24:02

○A2a06:98c1:3120::2026-03-12 → 2026-03-12 · 4 obs

○ 2026-03-02 18:07:00
● 2026-03-12 20:04:38
○ 2026-03-28 13:24:00
○ 2026-03-28 13:24:02

○A2a06:98c1:3121::2026-03-12 → 2026-03-12 · 4 obs

○ 2026-03-02 18:07:00
● 2026-03-12 20:04:38
○ 2026-03-28 13:24:00
○ 2026-03-28 13:24:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mycalibrationtools.com	sofia.ns.cloudflare.com, zod.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.250

NS records: sofia.ns.cloudflare.com, zod.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mycalibrationtools.com (unsigned zone)

⏱️ Timing

Total: 141ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.221.140, 104.21.25.11`
AAAA	2	`2606:4700:3037::ac43:dd8c, 2606:4700:3033::6815:190b`
NS	2	`sofia.ns.cloudflare.com, zod.ns.cloudflare.com`
MX	1	`SMTP.GOOGLE.com (pri: 1)`
TXT	5	`google-site-verification=1lSLMCAjYmKoUrN, google-site-verification=9--GBGos1XqM2PV...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`sofia.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mycalibrationtools.com points to four IP numbers: 2606:4700:3033::6815:190b, 2606:4700:3037::ac43:dd8c, 104.21.25.11 and 172.67.221.140.

Other host names, for instance alien-speed.com, naturecurieuse.com, 61789q.com, rapfestinc.com and as88masbro.xyz share IP numbers with mycalibrationtools.com.

Name Servers

mycalibrationtools.com's delegation is to two name servers sofia.ns.cloudflare.com and zod.ns.cloudflare.com.

mycalibrationtools.com shares the same name server configuration as other domains, such as nsinailsthailand.com, lifechurchmh.com, rimtan.com, ffcu.com and amtb.co.uk.

mycalibrationtools.com at least partially shares its name servers with other domains, for instance eagton.com, ss-net.online, sevarenda.ru, 3917811.com and jigsawtraining.co.uk.

These name servers are commonly used alongside nicole.ns.cloudflare.com and eric.ns.cloudflare.com.

Host names with six IP numbers:

sofia.ns.cloudflare.com points to: 2606:4700:50::adf5:3adf, 2803:f800:50::6ca2:c0df, 2a06:98c1:50::ac40:20df, 108.162.192.223, 172.64.32.223 and 173.245.58.223.

zod.ns.cloudflare.com points to: 2606:4700:58::adf5:3bfa, 2803:f800:50::6ca2:c1fa, 2a06:98c1:50::ac40:21fa, 108.162.193.250, 172.64.33.250 and 173.245.59.250.

Mail Servers

mycalibrationtools.com is served by a single mail server, smtp.google.com.

mycalibrationtools.com uses the same mail server setup as other domains such as lexxlata.com, vodanet-telecom.com, rainshadowranch.com, 4-t.it and exactdigitalmedia.com.

mycalibrationtools.com shares some mail servers with other domains, including lepianedelmilia.it, spicontrols.com, fckarpaty.org.ua, gooh.com and delsa.org.

these mail servers are often used with alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and aspmx.l.google.com.

smtp.google.com points to nine IP numbers: 2607:f8b0:4004:c08::1a, 2607:f8b0:4004:c08::1b, 2607:f8b0:4004:c0b::1a, 2607:f8b0:4004:c0b::1b, 142.250.31.26, 142.250.31.27, 142.251.111.27, 172.253.63.26 and 172.253.63.27.

mycalibrationtools.com - robtex.com