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=225, name=cloudflare-ech.com
SOA	`skip.ns.cloudflare.com`dns@cloudflare.com serial=2410408689

`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=1786107219

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.be

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
○ 2026-08-07 13:07:34

○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
○ 2026-08-07 13:07:34

●NSskip.ns.cloudflare.com2026-02-19 → 2026-08-07 · 3 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-08-07 13:07:34

●NSsonia.ns.cloudflare.com2026-02-19 → 2026-08-07 · 3 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-08-07 13:07:34

●MXmail.protonmail.ch2026-02-19 → 2026-08-07 · 3 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-08-07 13:07:34

●MXmailsec.protonmail.ch2026-02-19 → 2026-08-07 · 3 obs

○ 2019-12-22 13:08:44
● 2026-02-19 07:00:58
● 2026-08-07 13:07:34

○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
○ 2026-08-07 13:07:34

●A104.21.52.1312026-02-19 → 2026-08-07 · 11 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
○ 2026-07-25 15:32:28
● 2026-08-06 23:06:00
● 2026-08-07 13:07:34

●A172.67.199.1392026-02-19 → 2026-08-07 · 11 obs

○A188.114.96.02026-04-29 → 2026-07-25 · 9 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
● 2026-07-25 15:32:28
○ 2026-08-06 23:06:00
○ 2026-08-07 13:07:34

○A188.114.97.02026-04-29 → 2026-07-25 · 9 obs

○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
○ 2026-08-07 13:07:34

●A2606:4700:3032::6815:34832026-06-21 → 2026-08-07 · 5 obs

○ 2026-05-24 04:27:16
● 2026-06-21 18:53:06
○ 2026-07-25 15:32:28
● 2026-08-06 23:06:00
● 2026-08-07 13:07:34

○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
○ 2026-08-07 13:07:34

●A2606:4700:3034::ac43:c78b2026-06-21 → 2026-08-07 · 5 obs

○ 2026-05-24 04:27:16
● 2026-06-21 18:53:06
○ 2026-07-25 15:32:28
● 2026-08-06 23:06:00
● 2026-08-07 13:07:34

○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
○ 2026-08-07 13:07:34

○A2a06:98c1:3120::2026-04-29 → 2026-07-25 · 9 obs

○A2a06:98c1:3121::2026-04-29 → 2026-07-25 · 9 obs

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:172.64.34.190

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: 485ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.199.139, 104.21.52.131`
AAAA	2	`2606:4700:3034::ac43:c78b, 2606:4700:3032::6815:3483`
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 mytrixhalo-gpt.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, jamaicablue.uy 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 regularly co-occur with the name servers sharon.ns.cloudflare.com, syeef.ns.cloudflare.com and adam.ns.cloudflare.com.

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).