`calcweb.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:4129^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:9e02^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.65.41^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.158.2^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`huxley.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cbc^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`huxley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3bc^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`huxley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23bc^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`huxley.ns.cloudflare.com`
		A	108.162.195.188^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`huxley.ns.cloudflare.com`
		A	162.159.44.188^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`huxley.ns.cloudflare.com`
		A	172.64.35.188^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`huxley.ns.cloudflare.com`
NS	`sonia.ns.cloudflare.com`
		A	2606:4700:50::a29f:26be^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sonia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2be^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sonia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22be^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sonia.ns.cloudflare.com`
		A	108.162.194.190^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sonia.ns.cloudflare.com`
		A	162.159.38.190^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sonia.ns.cloudflare.com`
		A	172.64.34.190^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sonia.ns.cloudflare.com`
MX	`calcweb-org.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::4^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01504.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr04cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:f905::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr02cu00203.inbound.protection.outlook.com`
		A	2a01:111:f403:f90c::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr03cu00100.inbound.protection.outlook.com`
		A	52.101.10.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.50.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00502.inbound.protection.outlook.com`
		A	52.101.50.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00605.inbound.protection.outlook.com`
		A	52.101.194.13^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch0pr04cu00605.inbound.protection.outlook.com`
TXT	`MS=ms86081501`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.65.41, 172.67.158.2
		IPv6 hints	2606:4700:3034::6815:4129, 2606:4700:3035::ac43:9e02
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=78, name=cloudflare-ech.com
SOA	`huxley.ns.cloudflare.com`dns@cloudflare.com serial=2402707255

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1778688937

WOT: SAFE (61/100)

Previously MX for

calcweb.org

Same first word

calcweb.com

calcweb.ai

calcweb.net

calcweb.org

calcweb.ru

Similar names

accelwb.com

webcalc.org

webcalc.eu

webcalc.de

webcalc.com

webcalc.com.br

lccaweb.com

webcalc.ru

webcalc.net

laccweb.org

webclac.org

webcalc.ws

webcalc.blogspot.com

DNS History

13 records (7 active, 6 former)

●NShuxley.ns.cloudflare.com2026-05-02 → 2026-05-13 · 3 obs

○ 2017-03-28 02:07:50
● 2026-05-02 03:38:46
● 2026-05-13 16:51:08

○NSns-1288.awsdns-33.org2015-07-21 → 2017-03-28 · 4 obs

● 2015-07-21 12:25:20
● 2017-03-28 02:07:50
○ 2026-05-02 03:38:46
○ 2026-05-13 16:51:08

○NSns-1926.awsdns-48.co.uk2015-07-21 → 2017-03-28 · 4 obs

● 2015-07-21 12:25:20
● 2017-03-28 02:07:50
○ 2026-05-02 03:38:46
○ 2026-05-13 16:51:08

○NSns-219.awsdns-27.com2015-07-21 → 2017-03-28 · 4 obs

● 2015-07-21 12:25:20
● 2017-03-28 02:07:50
○ 2026-05-02 03:38:46
○ 2026-05-13 16:51:08

○NSns-583.awsdns-08.net2015-07-21 → 2017-03-28 · 4 obs

● 2015-07-21 12:25:20
● 2017-03-28 02:07:50
○ 2026-05-02 03:38:46
○ 2026-05-13 16:51:08

●NSsonia.ns.cloudflare.com2026-05-02 → 2026-05-13 · 3 obs

○ 2017-03-28 02:07:50
● 2026-05-02 03:38:46
● 2026-05-13 16:51:08

●MXcalcweb-org.mail.protection.outlook.com2026-05-02 → 2026-05-13 · 3 obs

○ 2017-03-28 02:07:50
● 2026-05-02 03:38:46
● 2026-05-13 16:51:08

○MXcalcweb.org2015-07-21 → 2017-03-28 · 4 obs

● 2015-07-21 12:25:20
● 2017-03-28 02:07:50
○ 2026-05-02 03:38:46
○ 2026-05-13 16:51:08

●A104.21.65.412026-05-02 → 2026-05-13 · 3 obs

○ 2017-03-28 02:07:50
● 2026-05-02 03:38:46
● 2026-05-13 16:51:08

●A172.67.158.22026-05-02 → 2026-05-13 · 3 obs

○ 2017-03-28 02:07:50
● 2026-05-02 03:38:46
● 2026-05-13 16:51:08

●A2606:4700:3034::6815:41292026-05-02 → 2026-05-13 · 3 obs

○ 2017-03-28 02:07:50
● 2026-05-02 03:38:46
● 2026-05-13 16:51:08

●A2606:4700:3035::ac43:9e022026-05-02 → 2026-05-13 · 3 obs

○ 2017-03-28 02:07:50
● 2026-05-02 03:38:46
● 2026-05-13 16:51:08

○A65.75.189.342015-07-21 → 2017-03-28 · 4 obs

● 2015-07-21 12:25:20
● 2017-03-28 02:07:50
○ 2026-05-02 03:38:46
○ 2026-05-13 16:51:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
calcweb.org	sonia.ns.cloudflare.com, huxley.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.190

NS records: sonia.ns.cloudflare.com, huxley.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for calcweb.org (unsigned zone)

⏱️ Timing

Total: 385ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.158.2, 104.21.65.41`
AAAA	2	`2606:4700:3034::6815:4129, 2606:4700:3035::ac43:9e02`
NS	2	`huxley.ns.cloudflare.com, sonia.ns.cloudflare.com`
MX	1	`calcweb-org.mail.protection.outlook.com`
TXT	2	`MS=ms86081501, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`huxley.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

calcweb.org points to four IP numbers: 2606:4700:3034::6815:4129, 2606:4700:3035::ac43:9e02, 104.21.65.41 and 172.67.158.2.

Other host names, for instance www.hizlial.com, crypgpt.ai, 95winm1.com, kimcookrealestate.com and uvation.net share IP numbers with calcweb.org.

Name Servers

calcweb.org is delegated to two name servers: huxley.ns.cloudflare.com and sonia.ns.cloudflare.com.

calcweb.org uses the same name server setup as other domains, for instance bigstop.org, fleetgps.help, callies.net, bearcreeklodge.net and mbehub.org.

calcweb.org shares name servers with other domains at least partially, for instance asusdesign.com, brandsandpatents.be, igsosana.org, yun14.com and 500523.com.

these name servers are often used together with the name servers adam.ns.cloudflare.com.

Host names with six IP numbers: huxley.ns.cloudflare.com points to 2606:4700:58::a29f:2cbc, 2803:f800:50::6ca2:c3bc, 2a06:98c1:50::ac40:23bc, 108.162.195.188, 162.159.44.188 and 172.64.35.188; sonia.ns.cloudflare.com points to 2606:4700:50::a29f:26be, 2803:f800:50::6ca2:c2be, 2a06:98c1:50::ac40:22be, 108.162.194.190, 162.159.38.190 and 172.64.34.190.

Mail Servers

The mail server for calcweb.org is calcweb-org.mail.protection.outlook.com.

Host calcweb-org.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::4, 2a01:111:f403:c92c::3, 2a01:111:f403:f905::3, 2a01:111:f403:f90c::, 52.101.10.10, 52.101.50.10, 52.101.50.13 and 52.101.194.13.

calcweb.org - robtex.com

calcweb.org

org

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`calcweb.org`

`org`