`openproton.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:ae04^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:6048^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.96.72^{Cloudflare104.21.96.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.174.4^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`chris.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b55^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c155^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`chris.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2155^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`chris.ns.cloudflare.com`
		A	108.162.193.85^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	172.64.33.85^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
		A	173.245.59.85^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`chris.ns.cloudflare.com`
NS	`julissa.ns.cloudflare.com`
		A	2606:4700:50::a29f:2669^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julissa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c269^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`julissa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2269^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`julissa.ns.cloudflare.com`
		A	108.162.194.105^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julissa.ns.cloudflare.com`
		A	162.159.38.105^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julissa.ns.cloudflare.com`
		A	172.64.34.105^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`julissa.ns.cloudflare.com`
MX	`openproton-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc2c::^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma0pr01cu01000.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2c::1^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma0pr01cu01101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2d::^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-pnzpr01cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:cc2d::1^{🇮🇳 Microsoft2a01:111:f000::/36}
			PTR	`mail-pnypr01cu00201.inbound.protection.outlook.com`
		A	52.101.144.0^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma0pr01cu01000.inbound.protection.outlook.com`
		A	52.101.144.3^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma0pr01cu01103.inbound.protection.outlook.com`
		A	52.101.145.0^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pnzpr01cu00200.inbound.protection.outlook.com`
		A	52.101.145.2^{🇮🇳 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-pnypr01cu00202.inbound.protection.outlook.com`
TXT	`MS=ms21652319`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.96.72, 172.67.174.4
		IPv6	2606:4700:3034::ac43:ae04, 2606:4700:3037::6815:6048
SOA	`chris.ns.cloudflare.com`dns@cloudflare.com serial=2399160791

`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=1774393017

⚠️ On DNS blocklist: light, multi, pro, pro.plus, tif, ultimate

Subdomains

www.openproton.com

Same first word

openproton.com

DNS History

15 records (7 active, 8 former)

●NSchris.ns.cloudflare.com2026-03-23 → 2026-03-24 · 3 obs

○ 2019-12-15 21:32:20
● 2026-03-23 02:30:06
● 2026-03-24 22:59:58

○NSdns1.registrar-servers.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 21:32:20
○ 2026-03-23 02:30:06
○ 2026-03-24 22:59:58

○NSdns2.registrar-servers.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 21:32:20
○ 2026-03-23 02:30:06
○ 2026-03-24 22:59:58

●NSjulissa.ns.cloudflare.com2026-03-23 → 2026-03-24 · 3 obs

○ 2019-12-15 21:32:20
● 2026-03-23 02:30:06
● 2026-03-24 22:59:58

○MXeforward1.registrar-servers.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 21:32:20
○ 2026-03-23 02:30:06
○ 2026-03-24 22:59:58

○MXeforward2.registrar-servers.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 21:32:20
○ 2026-03-23 02:30:06
○ 2026-03-24 22:59:58

○MXeforward3.registrar-servers.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 21:32:20
○ 2026-03-23 02:30:06
○ 2026-03-24 22:59:58

○MXeforward4.registrar-servers.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 21:32:20
○ 2026-03-23 02:30:06
○ 2026-03-24 22:59:58

○MXeforward5.registrar-servers.com2019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 21:32:20
○ 2026-03-23 02:30:06
○ 2026-03-24 22:59:58

●MXopenproton-com.mail.protection.outlook.com2026-03-23 → 2026-03-24 · 3 obs

○ 2019-12-15 21:32:20
● 2026-03-23 02:30:06
● 2026-03-24 22:59:58

●A104.21.96.722026-03-23 → 2026-03-24 · 3 obs

○ 2019-12-15 21:32:20
● 2026-03-23 02:30:06
● 2026-03-24 22:59:58

●A172.67.174.42026-03-23 → 2026-03-24 · 3 obs

○ 2019-12-15 21:32:20
● 2026-03-23 02:30:06
● 2026-03-24 22:59:58

○A192.64.119.422019-12-15 → 2019-12-15 · 3 obs

● 2019-12-15 21:32:20
○ 2026-03-23 02:30:06
○ 2026-03-24 22:59:58

●A2606:4700:3034::ac43:ae042026-03-23 → 2026-03-24 · 3 obs

○ 2019-12-15 21:32:20
● 2026-03-23 02:30:06
● 2026-03-24 22:59:58

●A2606:4700:3037::6815:60482026-03-23 → 2026-03-24 · 3 obs

○ 2019-12-15 21:32:20
● 2026-03-23 02:30:06
● 2026-03-24 22:59:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
openproton.com	chris.ns.cloudflare.com, julissa.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.85

NS records: chris.ns.cloudflare.com, julissa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openproton.com (unsigned zone)

⏱️ Timing

Total: 107ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.96.72, 172.67.174.4`
AAAA	2	`2606:4700:3037::6815:6048, 2606:4700:3034::ac43:ae04`
NS	2	`chris.ns.cloudflare.com, julissa.ns.cloudflare.com`
MX	1	`openproton-com.mail.protection.outlook.c`
TXT	2	`MS=ms21652319, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`chris.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of www.openproton.com is openproton.com.

IP Addresses

openproton.com resolves to four IP numbers: 2606:4700:3034::ac43:ae04, 2606:4700:3037::6815:6048, 104.21.96.72 and 172.67.174.4.

Other host names such as bjzyhkxy.com, sadirs.org, architektur-jacobs.de, id102-guestcheck.com and nationalfiltrationproducts.com share IPs with openproton.com.

Name Servers

openproton.com is delegated to two name servers: chris.ns.cloudflare.com and julissa.ns.cloudflare.com.

openproton.com shares the same name server setup as mhbfinanciallending.com, braincodeai.co, cranleighcc.com, dreamersbay.com and wedontdoordinary.art.

openproton.com at least partially shares name servers with other domains, for instance romestays.com, muethrath.net, rulikolesa.ru, zbgz.net and pc1328.com.

These name servers are commonly used with yew.ns.cloudflare.com and mario.ns.cloudflare.com.

Host names with six IP numbers:

chris.ns.cloudflare.com points to 2606:4700:58::adf5:3b55, 2803:f800:50::6ca2:c155, 2a06:98c1:50::ac40:2155, 108.162.193.85, 172.64.33.85 and 173.245.59.85.

julissa.ns.cloudflare.com points to 2606:4700:50::a29f:2669, 2803:f800:50::6ca2:c269, 2a06:98c1:50::ac40:2269, 108.162.194.105, 162.159.38.105 and 172.64.34.105.

Mail Servers

openproton.com is handled by a single mail server, openproton-com.mail.protection.outlook.com.

Host name openproton-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:cc2c::, 2a01:111:f403:cc2c::1, 2a01:111:f403:cc2d::, 2a01:111:f403:cc2d::1, 52.101.144.0, 52.101.144.3, 52.101.145.0 and 52.101.145.2.

openproton.com - robtex.com

openproton.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`openproton.com`

`com`