planetmath.com - dns.ninja

`planetmath.com`

DNSSEC	⚠️ Not signed
A	141.193.213.20^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
A	141.193.213.21^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
NS	`athena.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a48^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`athena.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c048^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`athena.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2048^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`athena.ns.cloudflare.com`
		A	108.162.192.72^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.32.72^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.58.72^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`jason.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bb3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jason.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jason.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jason.ns.cloudflare.com`
		A	108.162.193.179^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jason.ns.cloudflare.com`
		A	172.64.33.179^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jason.ns.cloudflare.com`
		A	173.245.59.179^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jason.ns.cloudflare.com`
SOA	`athena.ns.cloudflare.com`dns@cloudflare.com serial=2410630238

`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=1785200147

Subdomains

www.planetmath.com

Same first word

planetmath.com

planetmath.org

planetmath.info

planetmath.net

Similar names

mathplanet.cn

metalphant.com

mathplanet.com

themaplant.nl

DNS History

11 records (4 active, 7 former)

●NSathena.ns.cloudflare.com2026-02-15 → 2026-07-28 · 3 obs

○ 2017-02-12 05:16:06
● 2026-02-15 16:13:14
● 2026-07-28 01:25:52

○NSbuy.internettraffic.com2015-08-05 → 2016-06-25 · 4 obs

● 2015-08-05 20:29:34
● 2016-06-25 07:15:50
○ 2017-02-12 05:16:06
○ 2026-07-28 01:25:52

●NSjason.ns.cloudflare.com2026-02-15 → 2026-07-28 · 3 obs

○ 2017-02-12 05:16:06
● 2026-02-15 16:13:14
● 2026-07-28 01:25:52

○NSns1.uniregistrymarket.link2017-02-12 → 2017-02-12 · 4 obs

○ 2016-06-25 07:15:50
● 2017-02-12 05:16:06
○ 2026-02-15 16:13:14
○ 2026-07-28 01:25:52

○NSns2.uniregistrymarket.link2017-02-12 → 2017-02-12 · 4 obs

○ 2016-06-25 07:15:50
● 2017-02-12 05:16:06
○ 2026-02-15 16:13:14
○ 2026-07-28 01:25:52

○NSsell.internettraffic.com2015-08-05 → 2016-06-25 · 4 obs

● 2015-08-05 20:29:34
● 2016-06-25 07:15:50
○ 2017-02-12 05:16:06
○ 2026-07-28 01:25:52

●A141.193.213.202026-02-15 → 2026-07-28 · 3 obs

○ 2017-02-12 05:16:06
● 2026-02-15 16:13:14
● 2026-07-28 01:25:52

●A141.193.213.212026-02-15 → 2026-07-28 · 3 obs

○ 2017-02-12 05:16:06
● 2026-02-15 16:13:14
● 2026-07-28 01:25:52

○A176.74.176.1872017-02-12 → 2017-02-12 · 4 obs

○ 2016-06-25 07:15:50
● 2017-02-12 05:16:06
○ 2026-02-15 16:13:14
○ 2026-07-28 01:25:52

○A69.172.201.1532016-06-25 → 2016-06-25 · 4 obs

○ 2016-03-09 00:55:54
● 2016-06-25 07:15:50
○ 2017-02-12 05:16:06
○ 2026-07-28 01:25:52

○A69.172.201.2082015-08-05 → 2016-03-09 · 4 obs

● 2015-08-05 20:29:34
● 2016-03-09 00:55:54
○ 2016-06-25 07:15:50
○ 2026-07-28 01:25:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, g.gtld-servers.net, j.gtld-servers.net, m.gtld-servers.net...	-
planetmath.com	athena.ns.cloudflare.com, jason.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.72

NS records: athena.ns.cloudflare.com, jason.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for planetmath.com (unsigned zone)

⏱️ Timing

Total: 187ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`141.193.213.21, 141.193.213.20`
NS	2	`athena.ns.cloudflare.com, jason.ns.cloudflare.com`
SOA	1	`athena.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.planetmath.com is a subdomain of planetmath.com.

IP Addresses

planetmath.com points to the IP addresses 141.193.213.20 and 141.193.213.21

Among the host names that share IP numbers with planetmath.com are researchtrials.com, gx6u3lhyu7fz.wpeproxy.com, therapistinsurance.co.uk and two others.

Name Servers

Two name servers handle the delegation for planetmath.com: athena.ns.cloudflare.com and jason.ns.cloudflare.com.

planetmath.com has the same name server delegation as a number of other domains, such as valorprepacademy.com, freesummerschool.com, freesummerhighschool.com and two more.

The name servers of planetmath.com overlap at least partially with those of other domains — among them vulnerabletarget.com, markethive.io, invina.com and two more.

The name servers magdalena.ns.cloudflare.com, rocco.ns.cloudflare.com and teresa.ns.cloudflare.com are commonly seen alongside these name servers.

Host names resolving to 6 IP numbers:

athena.ns.cloudflare.com resolves to 108.162.192.72, 172.64.32.72 and 173.245.58.72 among others, with 3 other IP addresses in total.

jason.ns.cloudflare.com resolves to 108.162.193.179, 172.64.33.179 and 173.245.59.179 among others, with 3 other IP addresses in total.