sigmatheta.org - robtex.com

sigmatheta.org

DNSSEC⚠️ Not signed
NSkeenan.ns.cloudflare.com ⚠️ Not in zone NS records
A2606:4700:58::a29f:2c0b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeenan.ns.cloudflare.com
A2803:f800:50::6ca2:c30b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkeenan.ns.cloudflare.com
A2a06:98c1:50::ac40:230b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkeenan.ns.cloudflare.com
A108.162.195.11🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeenan.ns.cloudflare.com
A162.159.44.11Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeenan.ns.cloudflare.com
A172.64.35.11🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeenan.ns.cloudflare.com
NSzelda.ns.cloudflare.com ⚠️ Not in zone NS records
A2606:4700:50::adf5:3af2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRzelda.ns.cloudflare.com
A2803:f800:50::6ca2:c0f2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRzelda.ns.cloudflare.com
A2a06:98c1:50::ac40:20f2🇺🇸 Cloudflare2a06:98c1:50::/45
PTRzelda.ns.cloudflare.com
A108.162.192.242🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRzelda.ns.cloudflare.com
A172.64.32.242🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRzelda.ns.cloudflare.com
A173.245.58.242🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRzelda.ns.cloudflare.com

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1785577695
⚠️ On DNS blocklist: tif
WOT: SAFE (63/100)

Same first word

sigmatheta.com

Similar names

thetasigma.com

DNS History

9 records (2 active, 7 former)

20162017201820192020202120222023202420252026NSkeenan.ns.cloudflare.comzelda.ns.cloudflare.comns1.dreamhost.comns2.dreamhost.comns3.dreamhost.comMXmx1.sub4.homie.mail.dreamhost.commx2.sub4.homie.mail.dreamhost.comA208.113.236.11764.90.48.131
●NSkeenan.ns.cloudflare.com2026-08-01 → 2026-08-01 · 2 obs
○ 2016-10-08 03:46:32
● 2026-08-01 10:22:42
○NSns1.dreamhost.com2015-08-02 → 2016-10-08 · 3 obs
● 2015-08-02 03:48:28
● 2016-10-08 03:46:32
○ 2026-08-01 10:22:42
○NSns2.dreamhost.com2015-08-02 → 2016-10-08 · 3 obs
● 2015-08-02 03:48:28
● 2016-10-08 03:46:32
○ 2026-08-01 10:22:42
○NSns3.dreamhost.com2015-08-02 → 2016-10-08 · 3 obs
● 2015-08-02 03:48:28
● 2016-10-08 03:46:32
○ 2026-08-01 10:22:42
●NSzelda.ns.cloudflare.com2026-08-01 → 2026-08-01 · 2 obs
○ 2016-10-08 03:46:32
● 2026-08-01 10:22:42
○MXmx1.sub4.homie.mail.dreamhost.com2015-08-02 → 2016-10-08 · 3 obs
● 2015-08-02 03:48:28
● 2016-10-08 03:46:32
○ 2026-08-01 10:22:42
○MXmx2.sub4.homie.mail.dreamhost.com2015-08-02 → 2016-10-08 · 3 obs
● 2015-08-02 03:48:28
● 2016-10-08 03:46:32
○ 2026-08-01 10:22:42
○A208.113.236.1172015-08-02 → 2015-08-02 · 3 obs
● 2015-08-02 03:48:28
○ 2016-01-18 09:19:48
○ 2026-08-01 10:22:42
○A64.90.48.1312016-01-18 → 2016-10-08 · 4 obs
○ 2015-08-02 03:48:28
● 2016-01-18 09:19:48
● 2016-10-08 03:46:32
○ 2026-08-01 10:22:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
sigmatheta.orgzelda.ns.cloudflare.com, keenan.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.242

NS records: zelda.ns.cloudflare.com, keenan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sigmatheta.org (unsigned zone)

⏱️ Timing

Total: 301ms | Queries: -

📄 Records

TypeCountSample Data

Analysis

Name Servers

DNS delegation for sigmatheta.org points to two name servers: keenan.ns.cloudflare.com and zelda.ns.cloudflare.com.

sigmatheta.org has the same name server delegation as a number of other domains, such as tomazsalamun.com, quics.io, equaltogreen.com and two more.

sigmatheta.org shares at least some of its name servers with other domains, including gomje.ng, rledlighting.com, ynylhd.com and two others.

These name servers are frequently seen alongside the name servers arvind.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

keenan.ns.cloudflare.com has IP addresses 108.162.195.11, 162.159.44.11 and 172.64.35.11, plus 3 other.

zelda.ns.cloudflare.com has IP addresses 108.162.192.242, 172.64.32.242 and 173.245.58.242, plus 3 other.