problem-solving.org - dns.ninja

`problem-solving.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:3483^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:c78b^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.52.131^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.199.139^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`skip.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3be9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`skip.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`skip.ns.cloudflare.com`
		A	108.162.193.233^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	172.64.33.233^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.ns.cloudflare.com`
		A	173.245.59.233^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`skip.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	`mail.protonmail.ch` ⭐
		A	176.119.200.128^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mail.protonmail.ch`
		A	185.70.42.128^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mail.protonmail.ch`
		A	185.205.70.128^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mail.protonmail.ch`
MX	`mailsec.protonmail.ch`⁽²⁰⁾
		A	176.119.200.129^{🇨🇭 Proton176.119.200.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.70.42.129^{🇨🇭 Proton185.70.42.0/24}
			PTR	`mailsec.protonmail.ch`
		A	185.205.70.129^{🇫🇷 Proton185.205.70.0/24}
			PTR	`mailsec.protonmail.ch`
TXT	`protonmail-verification=589659a59e838afb9612ecc66754bb09f511cae9`
TXT	`v=spf1 a mx include:spf.server-he.de include:secureserver.net include:_spf.pr...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.52.131, 172.67.199.139
		IPv6 hints	2606:4700:3032::6815:3483, 2606:4700:3034::ac43:c78b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=197, name=cloudflare-ech.com
SOA	`skip.ns.cloudflare.com`dns@cloudflare.com serial=2407524094

`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=1782067274

Previously MX for

problem-solving.org

Same first word

problem-solving.de

problem-solving.ch

problem-solving.info

problem-solving.cz

problem-solving.ru

problem-solving.net

problem-solving.com

problem-solving.org

problem-solving.fr

DNS History

18 records (8 active, 10 former)

○NSns1.hawkhost.com2015-08-22 → 2017-03-17 · 4 obs

● 2015-08-22 07:34:10
● 2017-03-17 16:54:44
○ 2019-12-22 13:08:44
○ 2026-06-21 18:53:06

○NSns2.hawkhost.com2015-08-22 → 2017-03-17 · 4 obs

● 2015-08-22 07:34:10
● 2017-03-17 16:54:44
○ 2019-12-22 13:08:44
○ 2026-06-21 18:53:06

●NSskip.ns.cloudflare.com2026-02-19 → 2026-06-21 · 3 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-06-21 18:53:06

●NSsonia.ns.cloudflare.com2026-02-19 → 2026-06-21 · 3 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-06-21 18:53:06

●MXmail.protonmail.ch2026-02-19 → 2026-06-21 · 3 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-06-21 18:53:06

●MXmailsec.protonmail.ch2026-02-19 → 2026-06-21 · 3 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-06-21 18:53:06

○MXproblem-solving.org2015-08-22 → 2017-03-17 · 4 obs

● 2015-08-22 07:34:10
● 2017-03-17 16:54:44
○ 2019-12-22 13:08:44
○ 2026-06-21 18:53:06

●A104.21.52.1312026-02-19 → 2026-06-21 · 8 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-04-29 09:24:40
○ 2026-04-29 13:18:42
● 2026-04-30 21:40:06
● 2026-05-12 08:00:30
○ 2026-05-24 04:27:16
● 2026-06-21 18:53:06

●A172.67.199.1392026-02-19 → 2026-06-21 · 8 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-04-29 09:24:40
○ 2026-04-29 13:18:42
● 2026-04-30 21:40:06
● 2026-05-12 08:00:30
○ 2026-05-24 04:27:16
● 2026-06-21 18:53:06

○A188.114.96.02026-04-29 → 2026-05-24 · 6 obs

○ 2026-04-29 09:24:40
● 2026-04-29 13:18:42
○ 2026-04-30 21:40:06
○ 2026-05-12 08:00:30
● 2026-05-24 04:27:16
○ 2026-06-21 18:53:06

○A188.114.97.02026-04-29 → 2026-05-24 · 6 obs

○ 2026-04-29 09:24:40
● 2026-04-29 13:18:42
○ 2026-04-30 21:40:06
○ 2026-05-12 08:00:30
● 2026-05-24 04:27:16
○ 2026-06-21 18:53:06

○A198.252.98.22015-08-22 → 2017-03-17 · 4 obs

● 2015-08-22 07:34:10
● 2017-03-17 16:54:44
○ 2019-12-22 13:08:44
○ 2026-06-21 18:53:06

●A2606:4700:3032::6815:34832026-06-21 → 2026-06-21 · 2 obs

○ 2026-05-24 04:27:16
● 2026-06-21 18:53:06

○A2606:4700:3033::ac43:c78b2026-02-19 → 2026-05-12 · 8 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-04-29 09:24:40
○ 2026-04-29 13:18:42
● 2026-04-30 21:40:06
● 2026-05-12 08:00:30
○ 2026-05-24 04:27:16
○ 2026-06-21 18:53:06

●A2606:4700:3034::ac43:c78b2026-06-21 → 2026-06-21 · 2 obs

○ 2026-05-24 04:27:16
● 2026-06-21 18:53:06

○A2606:4700:3035::6815:34832026-02-19 → 2026-05-12 · 8 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-04-29 09:24:40
○ 2026-04-29 13:18:42
● 2026-04-30 21:40:06
● 2026-05-12 08:00:30
○ 2026-05-24 04:27:16
○ 2026-06-21 18:53:06

○A2a06:98c1:3120::2026-04-29 → 2026-05-24 · 6 obs

○ 2026-04-29 09:24:40
● 2026-04-29 13:18:42
○ 2026-04-30 21:40:06
○ 2026-05-12 08:00:30
● 2026-05-24 04:27:16
○ 2026-06-21 18:53:06

○A2a06:98c1:3121::2026-04-29 → 2026-05-24 · 6 obs

○ 2026-04-29 09:24:40
● 2026-04-29 13:18:42
○ 2026-04-30 21:40:06
○ 2026-05-12 08:00:30
● 2026-05-24 04:27:16
○ 2026-06-21 18:53:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org	-
problem-solving.org	sonia.ns.cloudflare.com, skip.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.233

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for problem-solving.org (unsigned zone)

⏱️ Timing

Total: 517ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.199.139, 104.21.52.131`
AAAA	2	`2606:4700:3032::6815:3483, 2606:4700:3034::ac43:c78b`
NS	2	`skip.ns.cloudflare.com, sonia.ns.cloudflare.com`
MX	2	`mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20)`
TXT	2	`protonmail-verification=589659a59e838afb, v=spf1 a mx include:spf.server-he.de inc`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`skip.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

problem-solving.org resolves to four IP addresses: 104.21.52.131, 172.67.199.139, 2606:4700:3032::6815:3483 and 2606:4700:3034::ac43:c78b.

Two other host names, along with suprasupreme.com, galamiami.com and canlispin4.com, also share IP numbers with problem-solving.org.

Name Servers

DNS delegation for problem-solving.org points to two name servers: skip.ns.cloudflare.com and sonia.ns.cloudflare.com.

problem-solving.org shares its NS records with other domains, for example toin.com.co, ingeniartecloud.com, unitedreloth.net and two others.

problem-solving.org partially shares its NS delegation with several other domains, including urbanfeeds.us, zzgo818.top, questinsight.us and two others.

These name servers are regularly seen alongside sharon.ns.cloudflare.com and adam.ns.cloudflare.com as name servers.

DNS names with 6 IP addresses:

skip.ns.cloudflare.com has IP addresses 108.162.193.233, 172.64.33.233 and 173.245.59.233, plus 3 other.

sonia.ns.cloudflare.com has IP addresses 108.162.194.190, 162.159.38.190 and 172.64.34.190, plus 3 other.

Mail Servers

problem-solving.org is served by two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.

Among the domains sharing a mail server setup with problem-solving.org are coinbug.com, traverserobinette.com, meklort.com and two others.

There is at least a partial MX overlap between problem-solving.org and other domains, including autoelektronika.org, fp.engineering, webhorn.com and two others.

mail.protonmail.ch has three IP addresses (176.119.200.128, 185.70.42.128 and 185.205.70.128) and mailsec.protonmail.ch has three IP addresses (176.119.200.129, 185.70.42.129 and 185.205.70.129).