contravariant.org - robtex.com
contravariant.org
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.infohostmaster@donuts.email serial=1776137851 | ||||||
Same first word
contravariant.org |
DNS History
20 records (11 active, 9 former)
○NSdns010.d.register.com2015-07-13 → 2017-04-19 · 4 obs
● 2017-04-19 04:33:56
○ 2026-03-04 10:10:04
○ 2026-04-14 03:49:02
○NSdns014.c.register.com2015-07-13 → 2017-04-19 · 4 obs
● 2017-04-19 04:33:56
○ 2026-03-04 10:10:04
○ 2026-04-14 03:49:02
○NSdns039.a.register.com2015-07-13 → 2017-04-19 · 4 obs
● 2017-04-19 04:33:56
○ 2026-03-04 10:10:04
○ 2026-04-14 03:49:02
○NSdns090.b.register.com2015-07-13 → 2017-04-19 · 4 obs
● 2017-04-19 04:33:56
○ 2026-03-04 10:10:04
○ 2026-04-14 03:49:02
●NSns-cloud-c1.googledomains.com2026-03-04 → 2026-04-14 · 3 obs
● 2026-03-04 10:10:04
● 2026-04-14 03:49:02
●NSns-cloud-c2.googledomains.com2026-03-04 → 2026-04-14 · 3 obs
● 2026-03-04 10:10:04
● 2026-04-14 03:49:02
●NSns-cloud-c3.googledomains.com2026-03-04 → 2026-04-14 · 3 obs
● 2026-03-04 10:10:04
● 2026-04-14 03:49:02
●NSns-cloud-c4.googledomains.com2026-03-04 → 2026-04-14 · 3 obs
● 2026-03-04 10:10:04
● 2026-04-14 03:49:02
●MXalt1.aspmx.l.google.com2015-07-13 → 2026-04-14 · 2 obs
● 2026-04-14 03:49:02
●MXalt2.aspmx.l.google.com2015-07-13 → 2026-04-14 · 2 obs
● 2026-04-14 03:49:02
●MXalt3.aspmx.l.google.com2026-03-04 → 2026-04-14 · 3 obs
● 2026-03-04 10:10:04
● 2026-04-14 03:49:02
●MXalt4.aspmx.l.google.com2026-03-04 → 2026-04-14 · 3 obs
● 2026-03-04 10:10:04
● 2026-04-14 03:49:02
●MXaspmx.l.google.com2015-07-13 → 2026-04-14 · 2 obs
● 2026-04-14 03:49:02
○MXaspmx2.googlemail.com2015-07-13 → 2017-04-19 · 4 obs
● 2017-04-19 04:33:56
○ 2026-03-04 10:10:04
○ 2026-04-14 03:49:02
○MXaspmx3.googlemail.com2015-07-13 → 2017-04-19 · 4 obs
● 2017-04-19 04:33:56
○ 2026-03-04 10:10:04
○ 2026-04-14 03:49:02
○MXaspmx4.googlemail.com2015-07-13 → 2017-04-19 · 4 obs
● 2017-04-19 04:33:56
○ 2026-03-04 10:10:04
○ 2026-04-14 03:49:02
○MXaspmx5.googlemail.com2015-07-13 → 2017-04-19 · 4 obs
● 2017-04-19 04:33:56
○ 2026-03-04 10:10:04
○ 2026-04-14 03:49:02
●A192.30.252.1532017-04-19 → 2026-04-14 · 3 obs
● 2017-04-19 04:33:56
● 2026-04-14 03:49:02
●A192.30.252.1542017-04-19 → 2026-04-14 · 3 obs
● 2017-04-19 04:33:56
● 2026-04-14 03:49:02
○A97.107.133.2212015-07-13 → 2016-07-16 · 4 obs
● 2016-07-16 15:35:06
○ 2017-04-19 04:33:56
○ 2026-04-14 03:49:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| contravariant.org | ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com | - |
✅ Authoritative Response
Server:216.239.36.108
NS records: ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com, ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for contravariant.org (unsigned zone)
⏱️ Timing
Total: 408ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 192.30.252.154, 192.30.252.153 |
| NS | 4 | ns-cloud-c3.googledomains.com, ns-cloud-c2.googledomains.com... |
| MX | 5 | alt1.aspmx.l.google.com (pri: 5), aspmx.l.google.com (pri: 1)... |
| SOA | 1 | ns-cloud-c1.googledomains.com cloud-dns- |
Analysis
IP Addresses
contravariant.org points to two IP numbers: 192.30.252.153 and 192.30.252.154.
Other host names, for instance areacon.org, tisba.de, alexadelle.com, dponrails.com and saveueamusic.org share IP numbers with contravariant.org.
Name Servers
contravariant.org is delegated to four name servers: ns-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com and ns-cloud-c4.googledomains.com.
contravariant.org at least partially shares its name servers with other domains, for instance ttdlabs.com, koratipara.com, path19.com, voltaren.com.sg and gobearcats.com.
Host names with two IPs: ns-cloud-c1.googledomains.com points to 2001:4860:4802:32::6c and 216.239.32.108; ns-cloud-c2.googledomains.com points to 2001:4860:4802:34::6c and 216.239.34.108; ns-cloud-c3.googledomains.com points to 2001:4860:4802:36::6c and 216.239.36.108; ns-cloud-c4.googledomains.com points to 2001:4860:4802:38::6c and 216.239.38.108.
Mail Servers
Five mail servers handle contravariant.org: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
contravariant.org shares some mail servers with other domains, including ns500841.ns500821.ns500821.ns500821.ns500821.ns500794.ns500821.ns500795.ns500794.ns500795.ns500790.ns500795.lustypartnersfinder.com, cookinglife.nl, ns500768.ns500758.ns500698.ns500698.ns500758.ns500698.ns500736.ns500735.ns500736.ns500735.ns500708.ns500708.ns500619.ns500576.ns500576.trackreceptor.com, ns500742.ns500671.ns500754.ns500731.ns500704.ns500704.ns500678.ns500688.ns500291.ns500671.ns500671.ns500666.tenderladiesbz.com and ns500758.ns500758.ns500758.ns500759.ns500735.ns500698.ns500735.ns500736.ns500735.ns500708.ns500576.ns500576.ns500619.ns500652.trackreceptor.com.
These mail servers are commonly used alongside the mail servers aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com points to 2607:f8b0:4004:c21::1a and 142.251.163.26.
alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1b and 108.177.123.27.
alt2.aspmx.l.google.com points to 2a00:1450:4013:c1e::1b and 192.178.213.26.
alt3.aspmx.l.google.com points to 2a00:1450:4001:c21::1a and 142.251.127.27.
alt4.aspmx.l.google.com points to 2607:f8b0:4003:c4a::1a and 142.251.96.27.