`ecalculus.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:d11a^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:42e6^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.66.230^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.209.26^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`meiling.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26fe^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2fe^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`meiling.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22fe^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`meiling.ns.cloudflare.com`
		A	108.162.194.254^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	162.159.38.254^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
		A	172.64.34.254^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meiling.ns.cloudflare.com`
NS	`yadiel.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c04^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yadiel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c304^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yadiel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2304^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yadiel.ns.cloudflare.com`
		A	108.162.195.4^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yadiel.ns.cloudflare.com`
		A	162.159.44.4^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yadiel.ns.cloudflare.com`
		A	172.64.35.4^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yadiel.ns.cloudflare.com`
TXT	`google-site-verification=9Hr_9DMSX7IsIF8adtaPAorYI004hoVTwhbUOMDnosQ`
TXT	`yandex-verification: 2e6a04c6fb960ca3`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.66.230, 172.67.209.26
		IPv6 hints	2606:4700:3031::ac43:d11a, 2606:4700:3032::6815:42e6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=186, name=cloudflare-ech.com
SOA	`meiling.ns.cloudflare.com`dns@cloudflare.com serial=2411064896

`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=1786273601

WOT: SAFE (65/100)

Previously MX for

ecalculus.org

Same first word

ecalculus.org

DNS History

23 records (6 active, 17 former)

●NSmeiling.ns.cloudflare.com2026-05-29 → 2026-08-09 · 3 obs

○ 2019-12-23 02:35:00
● 2026-05-29 12:24:06
● 2026-08-09 11:54:10

○NSns1.asmallorange.com2015-12-09 → 2017-02-19 · 5 obs

○ 2015-08-10 22:05:30
● 2015-12-09 10:44:50
● 2017-02-19 00:39:18
○ 2019-12-23 02:35:00
○ 2026-08-09 11:54:10

○NSns1.cse.ucdavis.edu2015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 22:05:30
○ 2015-12-09 10:44:50
○ 2026-08-09 11:54:10

○NSns1.math.ucdavis.edu2015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 22:05:30
○ 2015-12-09 10:44:50
○ 2026-08-09 11:54:10

○NSns2.asmallorange.com2015-12-09 → 2017-02-19 · 5 obs

○ 2015-08-10 22:05:30
● 2015-12-09 10:44:50
● 2017-02-19 00:39:18
○ 2019-12-23 02:35:00
○ 2026-08-09 11:54:10

○NSns2.math.ucdavis.edu2015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 22:05:30
○ 2015-12-09 10:44:50
○ 2026-08-09 11:54:10

○NSns81.ownmyserver.com2019-12-23 → 2019-12-23 · 4 obs

○ 2017-02-19 00:39:18
● 2019-12-23 02:35:00
○ 2026-05-29 12:24:06
○ 2026-08-09 11:54:10

○NSns82.ownmyserver.com2019-12-23 → 2019-12-23 · 4 obs

○ 2017-02-19 00:39:18
● 2019-12-23 02:35:00
○ 2026-05-29 12:24:06
○ 2026-08-09 11:54:10

○NSns96.ownmyserver.com2019-12-23 → 2019-12-23 · 4 obs

○ 2017-02-19 00:39:18
● 2019-12-23 02:35:00
○ 2026-05-29 12:24:06
○ 2026-08-09 11:54:10

○NSns97.ownmyserver.com2019-12-23 → 2019-12-23 · 4 obs

○ 2017-02-19 00:39:18
● 2019-12-23 02:35:00
○ 2026-05-29 12:24:06
○ 2026-08-09 11:54:10

●NSyadiel.ns.cloudflare.com2026-05-29 → 2026-08-09 · 3 obs

○ 2019-12-23 02:35:00
● 2026-05-29 12:24:06
● 2026-08-09 11:54:10

○MXecalculus.org2015-12-09 → 2019-12-23 · 5 obs

○ 2015-08-10 22:05:30
● 2015-12-09 10:44:50
● 2019-12-23 02:35:00
○ 2026-05-29 12:24:06
○ 2026-08-09 11:54:10

○MXmean.math.ucdavis.edu2015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 22:05:30
○ 2015-12-09 10:44:50
○ 2026-08-09 11:54:10

●A104.21.66.2302026-05-29 → 2026-08-09 · 3 obs

○ 2019-12-23 02:35:00
● 2026-05-29 12:24:06
● 2026-08-09 11:54:10

○A149.47.148.1892015-12-09 → 2017-02-19 · 5 obs

○ 2015-08-10 22:05:30
● 2015-12-09 10:44:50
● 2017-02-19 00:39:18
○ 2019-12-23 02:35:00
○ 2026-08-09 11:54:10

○A169.237.30.42015-08-10 → 2015-08-10 · 3 obs

● 2015-08-10 22:05:30
○ 2015-12-09 10:44:50
○ 2026-08-09 11:54:10

●A172.67.209.262026-05-29 → 2026-08-09 · 3 obs

○ 2019-12-23 02:35:00
● 2026-05-29 12:24:06
● 2026-08-09 11:54:10

○A217.182.9.2212019-12-23 → 2019-12-23 · 4 obs

○ 2017-02-19 00:39:18
● 2019-12-23 02:35:00
○ 2026-05-29 12:24:06
○ 2026-08-09 11:54:10

○A2606:4700:3031::6815:42e62026-05-29 → 2026-05-29 · 4 obs

○ 2019-12-23 02:35:00
● 2026-05-29 12:24:06
○ 2026-07-18 02:06:06
○ 2026-08-09 11:54:10

●A2606:4700:3031::ac43:d11a2026-07-18 → 2026-08-09 · 3 obs

○ 2026-05-29 12:24:06
● 2026-07-18 02:06:06
● 2026-08-09 11:54:10

●A2606:4700:3032::6815:42e62026-07-18 → 2026-08-09 · 3 obs

○ 2026-05-29 12:24:06
● 2026-07-18 02:06:06
● 2026-08-09 11:54:10

○A2606:4700:3034::ac43:d11a2026-05-29 → 2026-05-29 · 4 obs

○ 2019-12-23 02:35:00
● 2026-05-29 12:24:06
○ 2026-07-18 02:06:06
○ 2026-08-09 11:54:10

○CNAME77980.bodis.com2026-05-29 → 2026-08-09 · 2 obs

○ 2026-05-29 12:24:06
○ 2026-08-09 11:54:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
ecalculus.org	yadiel.ns.cloudflare.com, meiling.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.4

NS records: yadiel.ns.cloudflare.com, meiling.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ecalculus.org (unsigned zone)

⏱️ Timing

Total: 480ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.66.230, 172.67.209.26`
AAAA	2	`2606:4700:3032::6815:42e6, 2606:4700:3031::ac43:d11a`
NS	2	`meiling.ns.cloudflare.com, yadiel.ns.cloudflare.com`
TXT	2	`google-site-verification=9Hr_9DMSX7IsIF8, yandex-verification: 2e6a04c6fb960ca3`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`meiling.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

ecalculus.org directs to four IP numbers, which are 104.21.66.230, 172.67.209.26, 2606:4700:3031::ac43:d11a and 2606:4700:3032::6815:42e6.

Two other host names, along with chinapbj.com, scuby.com and derelicts.org, also share IP numbers with ecalculus.org.

Name Servers

ecalculus.org uses two name servers for its delegation: meiling.ns.cloudflare.com and yadiel.ns.cloudflare.com.

ecalculus.org shares its NS records with other domains, for example coopsama.com.gt, theultimatemotors.com, setecorp.com.do and two others.

At least some of ecalculus.org's name servers are shared with other domains, for example blesdjewelry.com, comonopolycasino.com, car-craft.com.au and two more.

These name servers tend to co-occur with vasilii.ns.cloudflare.com, nash.ns.cloudflare.com, theo.ns.cloudflare.com and 3 other name servers in the same DNS delegations.

DNS names with 6 IP addresses:

Hostname meiling.ns.cloudflare.com directs to 108.162.194.254, 162.159.38.254 and 172.64.34.254 along with 3 other IP addresses.

Hostname yadiel.ns.cloudflare.com directs to 108.162.195.4, 162.159.44.4 and 172.64.35.4 along with 3 other IP addresses.

ecalculus.org - robtex.com

ecalculus.org

org

Previously MX for

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`ecalculus.org`

`org`