physicstutorials.org - dns.ninja

`physicstutorials.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:d9f0^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:4615^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.70.21^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.217.240^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jean.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a79^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c079^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jean.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2079^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jean.ns.cloudflare.com`
		A	108.162.192.121^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	172.64.32.121^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
		A	173.245.58.121^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jean.ns.cloudflare.com`
NS	`norm.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b86^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norm.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c186^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`norm.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2186^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`norm.ns.cloudflare.com`
		A	108.162.193.134^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norm.ns.cloudflare.com`
		A	172.64.33.134^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norm.ns.cloudflare.com`
		A	173.245.59.134^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`norm.ns.cloudflare.com`
TXT	`google-site-verification=ObD_AEJ3I9NdUxE6i9Cf3YYR4LpyJa7pm8uv5QnA3y4`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.70.21, 172.67.217.240
		IPv6 hints	2606:4700:3032::ac43:d9f0, 2606:4700:3033::6815:4615
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=171, name=cloudflare-ech.com
SOA	`jean.ns.cloudflare.com`dns@cloudflare.com serial=2409892604

`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=1785979129

WOT: SAFE (60/100)

Subdomains

www.physicstutorials.org

Same first word

physicstutorials.org

DNS History

17 records (6 active, 11 former)

●NSjean.ns.cloudflare.com2015-08-17 → 2026-08-06 · 2 obs

● 2015-08-17 06:26:12
● 2026-08-06 01:41:04

●NSnorm.ns.cloudflare.com2015-08-17 → 2026-08-06 · 2 obs

● 2015-08-17 06:26:12
● 2026-08-06 01:41:04

○MXdc-c075db4c.physicstutorials.org2015-08-17 → 2026-02-16 · 4 obs

● 2015-08-17 06:26:12
● 2026-02-16 00:27:16
○ 2026-04-05 15:20:08
○ 2026-08-06 01:41:04

●A104.21.70.212026-02-16 → 2026-08-06 · 3 obs

○ 2017-02-07 04:01:54
● 2026-02-16 00:27:16
● 2026-08-06 01:41:04

○A104.24.114.252015-08-17 → 2016-05-17 · 4 obs

● 2015-08-17 06:26:12
● 2016-05-17 14:39:42
○ 2017-02-07 04:01:54
○ 2026-08-06 01:41:04

○A104.24.115.252015-08-17 → 2016-05-17 · 4 obs

● 2015-08-17 06:26:12
● 2016-05-17 14:39:42
○ 2017-02-07 04:01:54
○ 2026-08-06 01:41:04

○A104.31.142.472017-02-07 → 2017-02-07 · 4 obs

○ 2016-05-17 14:39:42
● 2017-02-07 04:01:54
○ 2026-02-16 00:27:16
○ 2026-08-06 01:41:04

○A104.31.143.472017-02-07 → 2017-02-07 · 4 obs

○ 2016-05-17 14:39:42
● 2017-02-07 04:01:54
○ 2026-02-16 00:27:16
○ 2026-08-06 01:41:04

●A172.67.217.2402026-02-16 → 2026-08-06 · 3 obs

○ 2017-02-07 04:01:54
● 2026-02-16 00:27:16
● 2026-08-06 01:41:04

○A2400:cb00:2048:1::6818:72192015-08-17 → 2016-05-17 · 4 obs

● 2015-08-17 06:26:12
● 2016-05-17 14:39:42
○ 2017-02-07 04:01:54
○ 2026-08-06 01:41:04

○A2400:cb00:2048:1::6818:73192015-08-17 → 2016-05-17 · 4 obs

● 2015-08-17 06:26:12
● 2016-05-17 14:39:42
○ 2017-02-07 04:01:54
○ 2026-08-06 01:41:04

○A2400:cb00:2048:1::681f:8e2f2017-02-07 → 2017-02-07 · 4 obs

○ 2016-05-17 14:39:42
● 2017-02-07 04:01:54
○ 2026-02-16 00:27:16
○ 2026-08-06 01:41:04

○A2400:cb00:2048:1::681f:8f2f2017-02-07 → 2017-02-07 · 4 obs

○ 2016-05-17 14:39:42
● 2017-02-07 04:01:54
○ 2026-02-16 00:27:16
○ 2026-08-06 01:41:04

●A2606:4700:3032::ac43:d9f02026-08-02 → 2026-08-06 · 3 obs

○ 2026-06-10 15:44:18
● 2026-08-02 10:02:02
● 2026-08-06 01:41:04

●A2606:4700:3033::6815:46152026-08-02 → 2026-08-06 · 3 obs

○ 2026-06-10 15:44:18
● 2026-08-02 10:02:02
● 2026-08-06 01:41:04

○A2606:4700:3035::6815:46152026-02-16 → 2026-06-10 · 5 obs

○ 2017-02-07 04:01:54
● 2026-02-16 00:27:16
● 2026-06-10 15:44:18
○ 2026-08-02 10:02:02
○ 2026-08-06 01:41:04

○A2606:4700:3036::ac43:d9f02026-02-16 → 2026-06-10 · 5 obs

○ 2017-02-07 04:01:54
● 2026-02-16 00:27:16
● 2026-06-10 15:44:18
○ 2026-08-02 10:02:02
○ 2026-08-06 01:41:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org	-
physicstutorials.org	jean.ns.cloudflare.com, norm.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.134

NS records: jean.ns.cloudflare.com, norm.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for physicstutorials.org (unsigned zone)

⏱️ Timing

Total: 432ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.217.240, 104.21.70.21`
AAAA	2	`2606:4700:3032::ac43:d9f0, 2606:4700:3033::6815:4615`
NS	2	`jean.ns.cloudflare.com, norm.ns.cloudflare.com`
TXT	2	`google-site-verification=ObD_AEJ3I9NdUxE, v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jean.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

physicstutorials.org is the parent zone for www.physicstutorials.org.

IP Addresses

physicstutorials.org resolves to four IP addresses: 104.21.70.21, 172.67.217.240, 2606:4700:3032::ac43:d9f0 and 2606:4700:3033::6815:4615.

Additional host names — gardenagents.com, ugreatinternational.com, www.5234aa.com and two others — share IP numbers with physicstutorials.org.

Name Servers

physicstutorials.org is served by two delegated name servers, jean.ns.cloudflare.com and norm.ns.cloudflare.com.

physicstutorials.org shares its name server setup with other domains, including 2vu.info, yangbus.com, lux-tex.com.ua and two others.

physicstutorials.org partially shares its NS delegation with several other domains, including canhuistone.com, howtolucid.com, bokumono.club and two others.

These name servers are regularly seen alongside lady.ns.cloudflare.com and sam.ns.cloudflare.com as name servers.

Host names with 6 IP numbers:

jean.ns.cloudflare.com carries IP addresses 108.162.192.121, 172.64.32.121 and 173.245.58.121, with 3 other addresses beyond those.

norm.ns.cloudflare.com carries IP addresses 108.162.193.134, 172.64.33.134 and 173.245.59.134, with 3 other addresses beyond those.